/* ============================================
   BOUN GPA Calculator - Modern Minimalist Design
   ============================================ */

/* Google Fonts - DM Sans */
@import url('https://fonts.googleapis.com/css2?family=DM+Sans:ital,opsz,wght@0,9..40,100..1000;1,9..40,100..1000&display=swap');

/* ============================================
   CSS Variables - Design Tokens
   ============================================ */
:root {
    /* Typography */
    --font-family: 'DM Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    
    /* Primary Colors */
    --primary-50: #eff6ff;
    --primary-100: #dbeafe;
    --primary-200: #bfdbfe;
    --primary-300: #93c5fd;
    --primary-400: #60a5fa;
    --primary-500: #3b82f6;
    --primary-600: #2563eb;
    --primary-700: #1d4ed8;
    --primary-800: #1e40af;
    --primary-900: #003366; /* Boğaziçi Blue */
    
    /* Neutral Colors */
    --neutral-50: #f8fafc;
    --neutral-100: #f1f5f9;
    --neutral-200: #e2e8f0;
    --neutral-300: #cbd5e1;
    --neutral-400: #94a3b8;
    --neutral-500: #64748b;
    --neutral-600: #475569;
    --neutral-700: #334155;
    --neutral-800: #1e293b;
    --neutral-900: #0f172a;
    
    /* Semantic Colors */
    --success-50: #ecfdf5;
    --success-500: #10b981;
    --success-600: #059669;
    --warning-50: #fffbeb;
    --warning-500: #f59e0b;
    --warning-600: #d97706;
    --danger-50: #fef2f2;
    --danger-500: #ef4444;
    --danger-600: #dc2626;
    
    /* Light Theme (Default) */
    --bg-primary: var(--neutral-50);
    --bg-secondary: #ffffff;
    --bg-tertiary: var(--neutral-100);
    --bg-hover: var(--neutral-100);
    --text-primary: var(--neutral-900);
    --text-secondary: var(--neutral-600);
    --text-tertiary: var(--neutral-400);
    --border-color: var(--neutral-200);
    --border-color-strong: var(--neutral-300);
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    
    /* Spacing */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
    --transition-slow: 350ms ease;
    
    /* Layout */
    --sidebar-width: 280px;
    --header-height: 64px;
}

/* Dark Theme */
[data-theme="dark"] {
    --bg-primary: var(--neutral-900);
    --bg-secondary: var(--neutral-800);
    --bg-tertiary: var(--neutral-700);
    --bg-hover: var(--neutral-700);
    --text-primary: var(--neutral-50);
    --text-secondary: var(--neutral-400);
    --text-tertiary: var(--neutral-500);
    --border-color: var(--neutral-700);
    --border-color-strong: var(--neutral-600);
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.3);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.4), 0 2px 4px -2px rgb(0 0 0 / 0.3);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.4), 0 4px 6px -4px rgb(0 0 0 / 0.3);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.5), 0 8px 10px -6px rgb(0 0 0 / 0.4);
}

/* ============================================
   Base Reset & Typography
   ============================================ */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    min-height: 100vh;
    min-height: 100dvh;
}

/* Remove spinners from number inputs */
input[type="number"]::-webkit-outer-spin-button,
input[type="number"]::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}
input[type="number"] {
    -moz-appearance: textfield;
}

/* ============================================
   Layout Structure
   ============================================ */
.app-container {
    display: flex;
    min-height: 100vh;
    min-height: 100dvh;
}

/* Sidebar */
.sidebar {
    width: var(--sidebar-width);
    background: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    height: 100dvh;
    z-index: 100;
    transition: transform var(--transition-normal);
}

.sidebar-header {
    padding: var(--space-6);
    border-bottom: 1px solid var(--border-color);
}

.sidebar-logo {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    text-decoration: none;
    color: var(--text-primary);
}

.sidebar-logo img {
    width: 48px;
    height: 48px;
    object-fit: contain;
}

.sidebar-logo-text {
    font-size: 1.125rem;
    font-weight: 700;
    letter-spacing: -0.025em;
}

.sidebar-logo-text span {
    color: var(--primary-600);
}

.sidebar-nav {
    flex: 1;
    padding: var(--space-4);
    overflow-y: auto;
}

.nav-section {
    margin-bottom: var(--space-6);
}

.nav-section-title {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-tertiary);
    padding: var(--space-2) var(--space-3);
    margin-bottom: var(--space-2);
}

.nav-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-lg);
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    border: none;
    background: none;
    width: 100%;
    font-size: 0.9375rem;
    font-family: inherit;
}

.nav-item:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.nav-item.active {
    background: var(--primary-50);
    color: var(--primary-700);
}

[data-theme="dark"] .nav-item.active {
    background: var(--primary-900);
    color: var(--primary-300);
}

.nav-item svg {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

.sidebar-footer {
    padding: var(--space-4);
    border-top: 1px solid var(--border-color);
}

/* Main Content */
.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    min-height: 100vh;
    min-height: 100dvh;
    display: flex;
    flex-direction: column;
}

.main-header {
    height: var(--header-height);
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--space-8);
    position: sticky;
    top: 0;
    z-index: 50;
}

.header-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.main-body {
    flex: 1;
    padding: var(--space-8);
    max-width: 1400px;
    width: 100%;
    margin: 0 auto;
}

/* ============================================
   View Containers
   ============================================ */
.view {
    display: none;
    animation: fadeIn var(--transition-normal) ease;
}

.view.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ============================================
   Cards
   ============================================ */
.card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: var(--space-6);
    transition: box-shadow var(--transition-normal);
}

.card:hover {
    box-shadow: var(--shadow-md);
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-6);
}

.card-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
}

.card-subtitle {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-top: var(--space-1);
}

/* ============================================
   Stats Grid (Dashboard)
   ============================================ */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: var(--space-6);
    margin-bottom: var(--space-8);
}

.stat-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: var(--space-6);
    transition: all var(--transition-normal);
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.stat-card-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-4);
}

.stat-card-icon.primary {
    background: var(--primary-100);
    color: var(--primary-600);
}

.stat-card-icon.success {
    background: var(--success-50);
    color: var(--success-600);
}

.stat-card-icon.warning {
    background: var(--warning-50);
    color: var(--warning-600);
}

.stat-card-icon svg {
    width: 24px;
    height: 24px;
}

.stat-card-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.2;
    margin-bottom: var(--space-1);
}

.stat-card-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.stat-card-trend {
    display: flex;
    align-items: center;
    gap: var(--space-1);
    font-size: 0.75rem;
    font-weight: 600;
    margin-top: var(--space-2);
}

.stat-card-trend.up {
    color: var(--success-600);
}

.stat-card-trend.down {
    color: var(--danger-600);
}

/* ============================================
   Forms
   ============================================ */
.form-group {
    margin-bottom: var(--space-5);
}

.form-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: var(--space-2);
}

.form-input,
.form-select {
    width: 100%;
    padding: var(--space-3) var(--space-4);
    font-size: 1rem;
    font-family: inherit;
    color: var(--text-primary);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    transition: all var(--transition-fast);
    outline: none;
}

.form-input:hover,
.form-select:hover {
    border-color: var(--border-color-strong);
}

.form-input:focus,
.form-select:focus {
    border-color: var(--primary-500);
    box-shadow: 0 0 0 3px var(--primary-100);
    background: var(--bg-secondary);
}

[data-theme="dark"] .form-input:focus,
[data-theme="dark"] .form-select:focus {
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2);
}

.form-input::placeholder {
    color: var(--text-tertiary);
}

.form-select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='20' height='20' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right var(--space-3) center;
    padding-right: var(--space-10);
    cursor: pointer;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-4);
}

/* ============================================
   Buttons
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-5);
    font-size: 0.9375rem;
    font-weight: 500;
    font-family: inherit;
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-fast);
    border: none;
    outline: none;
    text-decoration: none;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-primary {
    background: var(--primary-600);
    color: white;
}

.btn-primary:hover:not(:disabled) {
    background: var(--primary-700);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover:not(:disabled) {
    background: var(--bg-hover);
    border-color: var(--border-color-strong);
}

.btn-danger {
    background: var(--danger-500);
    color: white;
}

.btn-danger:hover:not(:disabled) {
    background: var(--danger-600);
}

.btn-ghost {
    background: transparent;
    color: var(--text-secondary);
}

.btn-ghost:hover:not(:disabled) {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.btn-icon {
    width: 40px;
    height: 40px;
    padding: 0;
    border-radius: var(--radius-lg);
}

.btn-icon.sm {
    width: 32px;
    height: 32px;
}

.btn-icon svg {
    width: 20px;
    height: 20px;
}

.btn-lg {
    padding: var(--space-4) var(--space-6);
    font-size: 1rem;
}

.btn-block {
    width: 100%;
}

/* ============================================
   Course Entry
   ============================================ */
.course-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.course-entry {
    display: grid;
    grid-template-columns: 1fr 140px 140px 40px;
    gap: var(--space-3);
    padding: var(--space-4);
    background: var(--bg-tertiary);
    border-radius: var(--radius-lg);
    align-items: start;
    animation: slideIn var(--transition-normal) ease;
}

@keyframes slideIn {
    from { opacity: 0; transform: translateX(-10px); }
    to { opacity: 1; transform: translateX(0); }
}

.course-entry.removing {
    animation: slideOut var(--transition-fast) ease forwards;
}

@keyframes slideOut {
    from { opacity: 1; transform: translateX(0); }
    to { opacity: 0; transform: translateX(10px); }
}

.course-name-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.course-retake-row {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    margin-top: var(--space-2);
}

.retake-checkbox {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    cursor: pointer;
    font-size: 0.8125rem;
    color: var(--text-secondary);
}

.retake-checkbox input[type="checkbox"] {
    width: 16px;
    height: 16px;
    accent-color: var(--primary-600);
    cursor: pointer;
}

.retake-select {
    padding: var(--space-2) var(--space-3);
    font-size: 0.8125rem;
}

.delete-course-btn {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    border-radius: var(--radius-md);
    color: var(--text-tertiary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.delete-course-btn:hover {
    background: var(--danger-50);
    color: var(--danger-500);
}

[data-theme="dark"] .delete-course-btn:hover {
    background: rgba(239, 68, 68, 0.1);
}

/* ============================================
   Results Display
   ============================================ */
.results-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-4);
    margin-top: var(--space-6);
    padding-top: var(--space-6);
    border-top: 1px solid var(--border-color);
}

.result-item {
    text-align: center;
    padding: var(--space-4);
    background: var(--bg-tertiary);
    border-radius: var(--radius-lg);
}

.result-label {
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: var(--space-2);
}

.result-value {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--primary-600);
}

.result-value.success {
    color: var(--success-600);
}

.result-value.warning {
    color: var(--warning-600);
}

.result-value.danger {
    color: var(--danger-600);
}

/* ============================================
   Templates Modal
   ============================================ */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal {
    background: var(--bg-secondary);
    border-radius: var(--radius-xl);
    width: 90%;
    max-width: 600px;
    max-height: 80vh;
    overflow: hidden;
    transform: scale(0.95) translateY(20px);
    transition: transform var(--transition-normal);
    display: flex;
    flex-direction: column;
}

.modal-overlay.active .modal {
    transform: scale(1) translateY(0);
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-5) var(--space-6);
    border-bottom: 1px solid var(--border-color);
}

.modal-title {
    font-size: 1.125rem;
    font-weight: 600;
}

.modal-close {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.modal-close:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.modal-body {
    padding: var(--space-6);
    overflow-y: auto;
    flex: 1;
}

.modal-footer {
    padding: var(--space-4) var(--space-6);
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
    gap: var(--space-3);
}

/* Template List */
.template-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.template-category {
    margin-bottom: var(--space-4);
}

.template-category-title {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-tertiary);
    margin-bottom: var(--space-3);
}

.template-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-3) var(--space-4);
    background: var(--bg-tertiary);
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.template-item:hover {
    background: var(--bg-hover);
}

.template-item-info {
    display: flex;
    flex-direction: column;
}

.template-item-name {
    font-weight: 500;
    color: var(--text-primary);
}

.template-item-meta {
    font-size: 0.8125rem;
    color: var(--text-secondary);
}

.template-item-add {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-100);
    color: var(--primary-600);
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.template-item-add:hover {
    background: var(--primary-600);
    color: white;
}

/* ============================================
   Goal Calculator
   ============================================ */
.goal-calculator {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-6);
}

.goal-input-section {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.goal-result-section {
    background: var(--bg-tertiary);
    border-radius: var(--radius-xl);
    padding: var(--space-6);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.goal-result-icon {
    width: 64px;
    height: 64px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-4);
}

.goal-result-icon.success {
    background: var(--success-50);
    color: var(--success-600);
}

.goal-result-icon.warning {
    background: var(--warning-50);
    color: var(--warning-600);
}

.goal-result-icon.danger {
    background: var(--danger-50);
    color: var(--danger-600);
}

.goal-result-icon svg {
    width: 32px;
    height: 32px;
}

.goal-result-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--space-2);
}

.goal-result-value {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-600);
    line-height: 1;
    margin-bottom: var(--space-2);
}

.goal-result-description {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* Progress Bar */
.progress-bar {
    width: 100%;
    height: 8px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-full);
    overflow: hidden;
    margin-top: var(--space-4);
}

.progress-bar-fill {
    height: 100%;
    background: var(--primary-600);
    border-radius: var(--radius-full);
    transition: width var(--transition-slow);
}

.progress-bar-fill.success {
    background: var(--success-500);
}

.progress-bar-fill.warning {
    background: var(--warning-500);
}

.progress-bar-fill.danger {
    background: var(--danger-500);
}

/* ============================================
   Semester History
   ============================================ */
.semester-tabs {
    display: flex;
    gap: var(--space-2);
    padding: var(--space-1);
    background: var(--bg-tertiary);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-6);
    overflow-x: auto;
}

.semester-tab {
    padding: var(--space-2) var(--space-4);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    background: transparent;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
    font-family: inherit;
}

.semester-tab:hover {
    color: var(--text-primary);
}

.semester-tab.active {
    background: var(--bg-secondary);
    color: var(--text-primary);
    box-shadow: var(--shadow-sm);
}

.add-semester-btn {
    padding: var(--space-2) var(--space-3);
    display: flex;
    align-items: center;
    gap: var(--space-1);
}

/* ============================================
   Charts Container
   ============================================ */
.charts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: var(--space-6);
}

.chart-container {
    position: relative;
    height: 300px;
}

/* ============================================
   Export Section
   ============================================ */
.export-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-4);
}

.export-option {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: var(--space-6);
    background: var(--bg-tertiary);
    border-radius: var(--radius-xl);
    cursor: pointer;
    transition: all var(--transition-fast);
    border: 2px solid transparent;
}

.export-option:hover {
    border-color: var(--primary-300);
    background: var(--bg-hover);
}

.export-option-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-100);
    color: var(--primary-600);
    margin-bottom: var(--space-4);
}

.export-option-icon svg {
    width: 28px;
    height: 28px;
}

.export-option-title {
    font-weight: 600;
    margin-bottom: var(--space-1);
}

.export-option-desc {
    font-size: 0.8125rem;
    color: var(--text-secondary);
    text-align: center;
}

/* ============================================
   Theme Toggle
   ============================================ */
.theme-toggle {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-fast);
    color: var(--text-secondary);
}

.theme-toggle:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.theme-toggle svg {
    width: 20px;
    height: 20px;
}

/* Language Toggle */
.lang-toggle {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-3);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-fast);
    color: var(--text-secondary);
    font-family: var(--font-family);
    font-size: 0.875rem;
    font-weight: 500;
}

.lang-toggle:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
    border-color: var(--border-color-strong);
}

.lang-toggle .lang-flag {
    font-size: 1.125rem;
    line-height: 1;
}

.lang-toggle .lang-code {
    font-weight: 600;
    letter-spacing: 0.025em;
}

/* ============================================
   Empty States
   ============================================ */
.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--space-12);
    text-align: center;
}

.empty-state-icon {
    width: 80px;
    height: 80px;
    border-radius: var(--radius-full);
    background: var(--bg-tertiary);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-6);
    color: var(--text-tertiary);
}

.empty-state-icon svg {
    width: 40px;
    height: 40px;
}

.empty-state-title {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: var(--space-2);
}

.empty-state-desc {
    color: var(--text-secondary);
    max-width: 300px;
    margin-bottom: var(--space-6);
}

/* ============================================
   Tooltips
   ============================================ */
[data-tooltip] {
    position: relative;
}

[data-tooltip]::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(-4px);
    padding: var(--space-2) var(--space-3);
    background: var(--neutral-800);
    color: white;
    font-size: 0.75rem;
    font-weight: 500;
    border-radius: var(--radius-md);
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-fast);
    z-index: 100;
}

[data-tooltip]:hover::after,
[data-tooltip]:focus::after {
    opacity: 1;
    visibility: visible;
}

/* ============================================
   Mobile Menu Toggle
   ============================================ */
.mobile-menu-toggle {
    display: none;
    width: 40px;
    height: 40px;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    color: var(--text-primary);
    cursor: pointer;
}

.mobile-menu-toggle svg {
    width: 24px;
    height: 24px;
}

/* ============================================
   Animations
   ============================================ */
.animate-fade-in {
    animation: fadeIn var(--transition-normal) ease forwards;
}

.animate-slide-up {
    animation: slideUp var(--transition-normal) ease forwards;
}

@keyframes slideUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.animate-count-up {
    animation: countPulse var(--transition-fast) ease;
}

@keyframes countPulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}

/* Staggered animations */
.stagger-1 { animation-delay: 50ms; }
.stagger-2 { animation-delay: 100ms; }
.stagger-3 { animation-delay: 150ms; }
.stagger-4 { animation-delay: 200ms; }
.stagger-5 { animation-delay: 250ms; }

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* ============================================
   Responsive Design
   ============================================ */
@media screen and (max-width: 1024px) {
    .goal-calculator {
        grid-template-columns: 1fr;
    }
    
    .charts-grid {
        grid-template-columns: 1fr;
    }
}

@media screen and (max-width: 768px) {
    :root {
        --sidebar-width: 100%;
    }
    
    .sidebar {
        transform: translateX(-100%);
        width: 280px;
    }
    
    .sidebar.open {
        transform: translateX(0);
    }
    
    .sidebar-overlay {
        position: fixed;
        inset: 0;
        background: rgba(0, 0, 0, 0.5);
        z-index: 99;
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition-normal);
    }
    
    .sidebar-overlay.active {
        opacity: 1;
        visibility: visible;
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .main-body {
        padding: var(--space-4);
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .lang-toggle .lang-code {
        display: none;
    }
    
    .lang-toggle {
        padding: var(--space-2);
    }
    
    .course-entry {
        grid-template-columns: 1fr;
        gap: var(--space-3);
    }
    
    .course-entry > *:last-child {
        justify-self: end;
    }
    
    .results-grid {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .export-options {
        grid-template-columns: 1fr;
    }
    
    .semester-tabs {
        flex-wrap: nowrap;
        -webkit-overflow-scrolling: touch;
    }
    
    .chart-container {
        height: 250px;
    }
}

/* ============================================
   Transcript Print Styles
   ============================================ */

#transcriptPrint {
    display: none;
}

@media print {
    body > * {
        display: none !important;
    }

    #transcriptPrint {
        display: block !important;
        font-family: 'Times New Roman', serif;
        color: #000;
        background: #fff;
        font-size: 10pt;
    }

    @page {
        margin: 15mm 20mm;
        size: A4 portrait;
    }

    .transcript-header {
        border-bottom: 2px solid #000;
        padding-bottom: 10pt;
        margin-bottom: 12pt;
        display: flex;
        align-items: center;
        gap: 12pt;
    }

    .transcript-header-text h1 {
        font-size: 13pt;
        margin: 0 0 2pt;
        font-weight: bold;
    }

    .transcript-header-text p {
        font-size: 9pt;
        margin: 0;
        color: #444;
    }

    .transcript-section-title {
        font-size: 10pt;
        font-weight: bold;
        border-bottom: 1px solid #888;
        margin: 10pt 0 6pt;
        padding-bottom: 2pt;
        text-transform: uppercase;
        letter-spacing: 0.03em;
    }

    .transcript-summary {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 4pt 20pt;
        margin-bottom: 10pt;
        font-size: 9.5pt;
    }

    .transcript-summary-item {
        display: flex;
        gap: 4pt;
    }

    .transcript-summary-label {
        font-weight: bold;
        min-width: 110pt;
    }

    .transcript-gpa-row {
        display: flex;
        align-items: center;
        gap: 6pt;
        margin-bottom: 3pt;
        font-size: 9pt;
    }

    .transcript-gpa-label {
        min-width: 60pt;
    }

    .transcript-gpa-bar-bg {
        display: inline-block;
        background: #ddd;
        height: 7pt;
        width: 80pt;
        vertical-align: middle;
    }

    .transcript-gpa-bar-fill {
        display: block;
        background: #000;
        height: 100%;
    }

    .transcript-gpa-value {
        font-weight: bold;
        min-width: 24pt;
    }

    .transcript-semester {
        page-break-inside: avoid;
        margin-bottom: 12pt;
    }

    .transcript-semester-title {
        font-size: 9.5pt;
        font-weight: bold;
        margin: 8pt 0 3pt;
    }

    .transcript-table {
        width: 100%;
        border-collapse: collapse;
        font-size: 9pt;
    }

    .transcript-table th {
        background: #f0f0f0;
        border: 1px solid #999;
        padding: 3pt 5pt;
        text-align: left;
        font-size: 8.5pt;
    }

    .transcript-table td {
        border: 1px solid #ccc;
        padding: 3pt 5pt;
    }

    .transcript-table td:nth-child(2),
    .transcript-table th:nth-child(2) {
        text-align: center;
    }

    .transcript-table td:nth-child(3),
    .transcript-table th:nth-child(3) {
        text-align: center;
    }

    .transcript-grade-scale {
        font-size: 8pt;
        color: #555;
        margin-top: 10pt;
        border-top: 1px solid #ccc;
        padding-top: 6pt;
    }

    .transcript-footer {
        margin-top: 16pt;
        font-size: 8pt;
        color: #555;
        border-top: 1px solid #ccc;
        padding-top: 6pt;
        text-align: right;
    }
}

/* ============================================
   Help Modal (Legacy Support)
   ============================================ */
#helpModal {
    position: fixed;
    inset: 0;
    z-index: 1000;
    display: none;
}

#helpModal.active,
#helpModal[style*="display: block"] {
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
}

#helpModal .modal-content {
    background: var(--bg-secondary);
    border-radius: var(--radius-xl);
    width: 90%;
    max-width: 700px;
    max-height: 85vh;
    overflow-y: auto;
    padding: var(--space-8);
    position: relative;
}

#helpModal .close {
    position: absolute;
    top: var(--space-4);
    right: var(--space-4);
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-tertiary);
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    font-size: 1.25rem;
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

#helpModal .close:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

#helpModal .help-content h2 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--space-6);
    text-align: center;
}

#helpModal .help-content section {
    margin-bottom: var(--space-6);
    padding: var(--space-5);
    background: var(--bg-tertiary);
    border-radius: var(--radius-lg);
}

#helpModal .help-content h3 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--primary-600);
    margin-bottom: var(--space-3);
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

#helpModal .help-content h3::before {
    content: none;
}

#helpModal .help-content p {
    color: var(--text-secondary);
    margin-bottom: var(--space-3);
    line-height: 1.7;
}

#helpModal .help-content ul {
    list-style: none;
    padding-left: var(--space-4);
}

#helpModal .help-content li {
    position: relative;
    padding-left: var(--space-4);
    margin-bottom: var(--space-2);
    color: var(--text-secondary);
}

#helpModal .help-content li::before {
    content: "•";
    position: absolute;
    left: 0;
    color: var(--primary-600);
    font-weight: bold;
}

/* ============================================
   New Features Styles
   ============================================ */

/* University Selector */
.university-selector {
    padding: var(--space-2) var(--space-4);
}

.university-select {
    width: 100%;
    padding: var(--space-2) var(--space-3);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 0.85rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.university-select:hover {
    border-color: var(--primary-500);
}

.university-select:focus {
    outline: none;
    border-color: var(--primary-500);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

/* Keyboard Shortcuts Modal */
.shortcuts-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.shortcut-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-3) var(--space-4);
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
}

.shortcut-keys {
    display: flex;
    gap: var(--space-2);
    align-items: center;
}

.shortcut-keys kbd {
    display: inline-block;
    padding: var(--space-1) var(--space-2);
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-family: var(--font-family);
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-primary);
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.shortcut-desc {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Drag Handle */
.drag-handle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 40px;
    cursor: grab;
    color: var(--text-tertiary);
    transition: color var(--transition-fast);
    flex-shrink: 0;
}

.drag-handle:hover {
    color: var(--text-secondary);
}

.drag-handle:active {
    cursor: grabbing;
}

.course-entry.dragging {
    opacity: 0.5;
    background: var(--primary-100);
    border: 2px dashed var(--primary-500);
}

[data-theme="dark"] .course-entry.dragging {
    background: var(--primary-900);
}

/* Auto-save Indicator */
.auto-save-indicator {
    font-size: 0.7rem;
    font-weight: 500;
    color: var(--success-600, #16a34a);
    opacity: 0;
    transition: opacity 0.3s ease;
    margin-left: var(--space-2);
    vertical-align: middle;
}

.auto-save-indicator.visible {
    opacity: 1;
}

/* Semester Notes Textarea */
.semester-notes-input {
    resize: vertical;
    min-height: 48px;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.semester-notes-input::placeholder {
    font-style: italic;
}

/* Duplicate course warning highlight */
.course-name.duplicate-warning {
    border-color: var(--warning-500, #f59e0b);
    background-color: var(--warning-50, #fffbeb);
}

[data-theme="dark"] .course-name.duplicate-warning {
    background-color: rgba(245, 158, 11, 0.1);
}

/* Toast Notification */
.toast {
    position: fixed;
    bottom: 20px;
    bottom: calc(20px + env(safe-area-inset-bottom, 0px));
    left: 50%;
    transform: translateX(-50%);
    background: var(--bg-secondary);
    color: var(--text-primary);
    padding: 12px 24px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    z-index: 10000;
    animation: slideUp 0.3s ease;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateX(-50%) translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
}

@keyframes slideDown {
    from {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
    to {
        opacity: 0;
        transform: translateX(-50%) translateY(20px);
    }
}

/* Feedback Form */
#feedbackModal .form-group {
    margin-bottom: var(--space-4);
}

#feedbackModal label {
    display: block;
    margin-bottom: var(--space-2);
    font-weight: 500;
    color: var(--text-primary);
}

#feedbackModal select,
#feedbackModal input,
#feedbackModal textarea {
    width: 100%;
    padding: var(--space-3);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-family: var(--font-family);
    font-size: 1rem;
    transition: all var(--transition-fast);
}

#feedbackModal select:focus,
#feedbackModal input:focus,
#feedbackModal textarea:focus {
    outline: none;
    border-color: var(--primary-500);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

#feedbackModal textarea {
    resize: vertical;
    min-height: 100px;
}

/* Import Modal */
#importModal .form-group {
    margin-bottom: var(--space-4);
}

#importModal label {
    display: block;
    margin-bottom: var(--space-2);
    font-weight: 500;
    color: var(--text-primary);
}

#importModal textarea {
    width: 100%;
    padding: var(--space-3);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-family: monospace;
    font-size: 0.85rem;
    resize: vertical;
    transition: all var(--transition-fast);
}

#importModal textarea:focus {
    outline: none;
    border-color: var(--primary-500);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

/* Export JSON Button */
.export-json-btn {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-4);
    background: var(--success-500);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.export-json-btn:hover {
    background: var(--success-600);
    transform: translateY(-1px);
}

/* Update course-entry grid for drag handle */
.course-entry {
    display: grid;
    grid-template-columns: auto 1fr auto auto auto;
    gap: var(--space-3);
    align-items: start;
}

@media (max-width: 768px) {
    .course-entry {
        grid-template-columns: auto 1fr;
        gap: var(--space-2);
    }
    
    .drag-handle {
        grid-row: span 2;
    }
    
    .course-name-group {
        grid-column: 2;
    }
    
    .course-credit,
    .course-grade {
        grid-column: 2;
    }
    
    .delete-course-btn {
        position: absolute;
        top: var(--space-2);
        right: var(--space-2);
    }
    
    .shortcut-item {
        flex-direction: column;
        gap: var(--space-2);
        text-align: center;
    }
}

/* ============================================
   SIMULATION VIEW STYLES
   ============================================ */

.simulation-container {
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
}

.simulation-courses {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.simulation-course {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-4);
    background: var(--neutral-50);
    border-radius: var(--radius-lg);
    border: 1px solid var(--neutral-200);
    transition: all var(--transition-fast);
}

[data-theme="dark"] .simulation-course {
    background: var(--neutral-800);
    border-color: var(--neutral-700);
}

.simulation-course:hover {
    border-color: var(--primary-300);
    box-shadow: var(--shadow-sm);
}

.sim-course-info {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
}

.sim-course-name {
    font-weight: 600;
    color: var(--neutral-800);
}

[data-theme="dark"] .sim-course-name {
    color: var(--neutral-100);
}

.sim-course-credits {
    font-size: var(--font-sm);
    color: var(--neutral-500);
}

.sim-grade-select {
    padding: var(--space-2) var(--space-4);
    border: 2px solid var(--neutral-300);
    border-radius: var(--radius-md);
    font-size: var(--font-base);
    font-weight: 600;
    background: var(--bg-primary);
    color: var(--text-primary);
    cursor: pointer;
    min-width: 80px;
    transition: all var(--transition-fast);
}

.sim-grade-select:focus {
    outline: none;
    border-color: var(--primary-500);
    box-shadow: 0 0 0 3px var(--primary-100);
}

.simulation-result {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-6);
    background: linear-gradient(135deg, var(--primary-50), var(--primary-100));
    border-radius: var(--radius-xl);
    text-align: center;
}

[data-theme="dark"] .simulation-result {
    background: linear-gradient(135deg, var(--primary-900), var(--primary-800));
}

.simulation-result-label {
    font-size: var(--font-sm);
    color: var(--primary-600);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

[data-theme="dark"] .simulation-result-label {
    color: var(--primary-300);
}

.simulation-result-value {
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary-600);
}

[data-theme="dark"] .simulation-result-value {
    color: var(--primary-300);
}

.gpa-change {
    font-size: var(--font-lg);
    font-weight: 600;
}

.gpa-change.positive {
    color: var(--success-600);
}

.gpa-change.negative {
    color: var(--error-600);
}

.quick-scenarios {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-3);
    margin-top: var(--space-4);
}

.quick-scenario-btn {
    padding: var(--space-2) var(--space-4);
    background: var(--neutral-100);
    border: 1px solid var(--neutral-300);
    border-radius: var(--radius-full);
    cursor: pointer;
    font-size: var(--font-sm);
    font-weight: 500;
    transition: all var(--transition-fast);
    color: var(--text-primary);
}

[data-theme="dark"] .quick-scenario-btn {
    background: var(--neutral-700);
    border-color: var(--neutral-600);
}

.quick-scenario-btn:hover {
    background: var(--primary-100);
    border-color: var(--primary-400);
    color: var(--primary-700);
}

[data-theme="dark"] .quick-scenario-btn:hover {
    background: var(--primary-900);
    color: var(--primary-300);
}

.saved-scenarios {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    margin-top: var(--space-4);
}

.scenario-card {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-3) var(--space-4);
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    border: 1px solid var(--neutral-200);
}

[data-theme="dark"] .scenario-card {
    border-color: var(--neutral-700);
}

.scenario-info {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
}

.scenario-name {
    font-weight: 600;
    color: var(--text-primary);
}

.scenario-gpa {
    font-size: var(--font-sm);
    color: var(--primary-600);
}

.scenario-actions {
    display: flex;
    gap: var(--space-2);
}

.load-scenario-btn,
.delete-scenario-btn {
    padding: var(--space-1) var(--space-3);
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    font-size: var(--font-sm);
    transition: all var(--transition-fast);
}

.load-scenario-btn {
    background: var(--primary-500);
    color: white;
}

.load-scenario-btn:hover {
    background: var(--primary-600);
}

.delete-scenario-btn {
    background: var(--error-100);
    color: var(--error-600);
}

.delete-scenario-btn:hover {
    background: var(--error-200);
}

/* ============================================
   GRADUATION VIEW STYLES
   ============================================ */

.graduation-container {
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
}

.graduation-inputs {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-4);
}

.graduation-input-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.graduation-input-group label {
    font-weight: 500;
    color: var(--text-secondary);
    font-size: var(--font-sm);
}

.graduation-input-group input {
    padding: var(--space-3);
    border: 2px solid var(--neutral-300);
    border-radius: var(--radius-lg);
    font-size: var(--font-base);
    background: var(--bg-primary);
    color: var(--text-primary);
    transition: all var(--transition-fast);
}

.graduation-input-group input:focus {
    outline: none;
    border-color: var(--primary-500);
    box-shadow: 0 0 0 3px var(--primary-100);
}

.progress-section {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.progress-item {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.progress-label {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: var(--font-sm);
}

.progress-bar {
    height: 12px;
    background: var(--neutral-200);
    border-radius: var(--radius-full);
    overflow: hidden;
}

[data-theme="dark"] .progress-bar {
    background: var(--neutral-700);
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-500), var(--primary-400));
    border-radius: var(--radius-full);
    transition: width 0.5s ease;
}

.required-gpa-section {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-4);
    padding: var(--space-6);
    background: var(--bg-secondary);
    border-radius: var(--radius-xl);
}

.required-gpa-label {
    font-size: var(--font-lg);
    color: var(--text-secondary);
}

.required-gpa-value {
    font-size: 2.5rem;
    font-weight: 700;
}

.required-gpa-value.achievable {
    color: var(--success-600);
}

.required-gpa-value.hard {
    color: var(--warning-600);
}

.required-gpa-value.impossible {
    color: var(--error-600);
}

.graduation-message {
    text-align: center;
    padding: var(--space-4);
    border-radius: var(--radius-lg);
    font-size: var(--font-lg);
}

.graduation-message .success {
    color: var(--success-600);
}

.graduation-message .warning {
    color: var(--error-600);
}

.graduation-message .caution {
    color: var(--warning-600);
}

.graduation-message .good {
    color: var(--success-600);
}

.honor-badges {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-4);
    justify-content: center;
    margin-top: var(--space-4);
}

.honor-badge {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-4) var(--space-6);
    background: var(--neutral-100);
    border-radius: var(--radius-xl);
    border: 2px solid var(--neutral-300);
    opacity: 0.5;
    transition: all var(--transition-fast);
}

[data-theme="dark"] .honor-badge {
    background: var(--neutral-800);
    border-color: var(--neutral-600);
}

.honor-badge.achieved {
    opacity: 1;
    border-color: var(--success-500);
    background: var(--success-50);
}

[data-theme="dark"] .honor-badge.achieved {
    background: rgba(34, 197, 94, 0.1);
}

.honor-badge-icon {
    font-size: 2rem;
}

.honor-badge-name {
    font-weight: 600;
    color: var(--text-primary);
}

.honor-badge-gpa {
    font-size: var(--font-sm);
    color: var(--text-secondary);
}

/* ============================================
   ACHIEVEMENTS VIEW STYLES
   ============================================ */

.achievements-container {
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
}

.achievements-progress {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    padding: var(--space-6);
    background: linear-gradient(135deg, var(--primary-50), var(--primary-100));
    border-radius: var(--radius-xl);
    text-align: center;
}

[data-theme="dark"] .achievements-progress {
    background: linear-gradient(135deg, var(--primary-900), var(--primary-800));
}

.achievements-progress-label {
    font-size: var(--font-lg);
    color: var(--primary-600);
}

[data-theme="dark"] .achievements-progress-label {
    color: var(--primary-300);
}

.achievements-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--space-4);
}

.achievement-badge {
    display: flex;
    gap: var(--space-4);
    padding: var(--space-4);
    background: var(--bg-secondary);
    border-radius: var(--radius-xl);
    border: 2px solid var(--neutral-200);
    transition: all var(--transition-fast);
}

[data-theme="dark"] .achievement-badge {
    border-color: var(--neutral-700);
}

.achievement-badge.locked {
    opacity: 0.5;
    filter: grayscale(0.5);
}

.achievement-badge.unlocked {
    border-color: var(--success-400);
    background: linear-gradient(135deg, var(--success-50), var(--bg-secondary));
}

[data-theme="dark"] .achievement-badge.unlocked {
    background: linear-gradient(135deg, rgba(34, 197, 94, 0.1), var(--bg-secondary));
}

.badge-icon {
    font-size: 2.5rem;
    flex-shrink: 0;
}

.badge-info {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
}

.badge-name {
    font-weight: 600;
    color: var(--text-primary);
}

.badge-desc {
    font-size: var(--font-sm);
    color: var(--text-secondary);
}

.badge-date {
    font-size: var(--font-xs);
    color: var(--success-600);
}

.achievement-notification {
    position: fixed;
    bottom: -100px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    gap: var(--space-4);
    padding: var(--space-4) var(--space-6);
    background: linear-gradient(135deg, var(--success-500), var(--success-600));
    color: white;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    z-index: 1000;
    transition: bottom 0.3s ease;
}

.achievement-notification.show {
    bottom: var(--space-6);
    bottom: calc(var(--space-6) + env(safe-area-inset-bottom, 0px));
}

.achievement-notification .achievement-icon {
    font-size: 2rem;
}

.achievement-notification .achievement-text {
    display: flex;
    flex-direction: column;
}

.achievement-notification .achievement-title {
    font-size: var(--font-xs);
    opacity: 0.9;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.achievement-notification .achievement-name {
    font-weight: 600;
    font-size: var(--font-lg);
}

/* ============================================
   CALENDAR VIEW STYLES
   ============================================ */

.calendar-container {
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
}

.calendar-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.calendar-nav {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.calendar-nav-btn {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-secondary);
    border: 1px solid var(--neutral-300);
    border-radius: var(--radius-full);
    cursor: pointer;
    font-size: var(--font-lg);
    transition: all var(--transition-fast);
    color: var(--text-primary);
}

[data-theme="dark"] .calendar-nav-btn {
    border-color: var(--neutral-600);
}

.calendar-nav-btn:hover {
    background: var(--primary-100);
    border-color: var(--primary-400);
}

.current-month {
    font-size: var(--font-xl);
    font-weight: 600;
    color: var(--text-primary);
    min-width: 200px;
    text-align: center;
}

.calendar-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: var(--space-2);
}

.calendar-day-header {
    padding: var(--space-2);
    text-align: center;
    font-weight: 600;
    color: var(--text-secondary);
    font-size: var(--font-sm);
}

.calendar-day {
    aspect-ratio: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-fast);
    position: relative;
}

.calendar-day:hover:not(.empty) {
    background: var(--primary-100);
    transform: scale(1.05);
}

[data-theme="dark"] .calendar-day:hover:not(.empty) {
    background: var(--primary-900);
}

.calendar-day.empty {
    background: transparent;
    cursor: default;
}

.calendar-day.today {
    background: var(--primary-500);
    color: white;
}

.calendar-day.today:hover {
    background: var(--primary-600);
}

.calendar-day.has-reminder::after {
    content: '';
    position: absolute;
    bottom: 4px;
    width: 6px;
    height: 6px;
    background: var(--error-500);
    border-radius: 50%;
}

.day-number {
    font-weight: 500;
}

.reminder-dot {
    display: none;
}

.reminders-section {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.reminders-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.add-reminder-btn {
    padding: var(--space-2) var(--space-4);
    background: var(--primary-500);
    color: white;
    border: none;
    border-radius: var(--radius-lg);
    cursor: pointer;
    font-weight: 500;
    transition: all var(--transition-fast);
}

.add-reminder-btn:hover {
    background: var(--primary-600);
}

.reminders-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.reminder-card {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    padding: var(--space-4);
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    border-left: 4px solid var(--primary-500);
}

.reminder-card.exam,
.reminder-card.midterm {
    border-left-color: var(--error-500);
}

.reminder-card.final {
    border-left-color: var(--warning-500);
}

.reminder-card.assignment {
    border-left-color: var(--warning-500);
}

.reminder-card.project {
    border-left-color: var(--primary-500);
}

.reminder-icon {
    font-size: 1.5rem;
}

.reminder-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
}

.reminder-title {
    font-weight: 600;
    color: var(--text-primary);
}

.reminder-date {
    font-size: var(--font-sm);
    color: var(--text-secondary);
}

.reminder-meta {
    font-size: var(--font-xs);
    color: var(--text-secondary);
}

.delete-reminder-btn {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--error-100);
    color: var(--error-600);
    border: none;
    border-radius: var(--radius-full);
    cursor: pointer;
    font-size: var(--font-lg);
    transition: all var(--transition-fast);
}

.delete-reminder-btn:hover {
    background: var(--error-200);
}

.quick-add-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
}

.quick-add-btn {
    padding: var(--space-2) var(--space-3);
    background: var(--neutral-100);
    border: 1px solid var(--neutral-300);
    border-radius: var(--radius-full);
    cursor: pointer;
    font-size: var(--font-sm);
    transition: all var(--transition-fast);
    color: var(--text-primary);
}

[data-theme="dark"] .quick-add-btn {
    background: var(--neutral-700);
    border-color: var(--neutral-600);
}

.quick-add-btn:hover {
    background: var(--primary-100);
    border-color: var(--primary-400);
}

.empty-message {
    text-align: center;
    color: var(--text-secondary);
    padding: var(--space-6);
}