/* ============================================
   STUDY PLANNER - NEON LITE MODE STYLES
   ============================================ */

:root {
    --neon-cyan: #00f5ff;
    --neon-pink: #ff00ff;
    --neon-purple: #b347ff;
    --neon-green: #00ff88;
    --neon-yellow: #ffff00;
    --neon-orange: #ff6600;
    --neon-red: #ff4444;
    --bg-dark: #0a0a1a;
    --bg-card: rgba(255, 255, 255, 0.05);
    --text-primary: #ffffff;
    --text-secondary: #aaa;
    --border-glow: rgba(0, 245, 255, 0.3);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Kahroba', sans-serif;
    background: linear-gradient(135deg, var(--bg-dark) 0%, #1a0a2e 50%, #0a1a2e 100%);
    min-height: 100vh;
    color: var(--text-primary);
    overflow-x: hidden;
}

/* Background Effects */
.bg-effects {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
}

.neon-ball {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.4;
    animation: float 20s ease-in-out infinite;
}

.ball-1 {
    width: 400px;
    height: 400px;
    background: var(--neon-cyan);
    top: -100px;
    right: -100px;
    animation-delay: 0s;
}

.ball-2 {
    width: 300px;
    height: 300px;
    background: var(--neon-pink);
    bottom: -50px;
    left: -50px;
    animation-delay: -7s;
}

.ball-3 {
    width: 350px;
    height: 350px;
    background: var(--neon-purple);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation-delay: -14s;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    25% { transform: translate(50px, 50px) scale(1.1); }
    50% { transform: translate(0, 100px) scale(0.9); }
    75% { transform: translate(-50px, 50px) scale(1.05); }
}

/* Container */
.container {
    position: relative;
    z-index: 1;
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

/* Glass Card */
.glass-card {
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--border-glow);
    border-radius: 20px;
    padding: 30px;
    margin-bottom: 20px;
    box-shadow: 
        0 0 30px rgba(0, 245, 255, 0.1),
        inset 0 0 30px rgba(255, 255, 255, 0.02);
}

/* Header */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
    margin-bottom: 20px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 15px;
}

.logo-icon {
    font-size: 2.5rem;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

.logo h1 {
    font-size: 1.8rem;
    background: linear-gradient(90deg, var(--neon-cyan), var(--neon-pink));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.user-info {
    display: flex;
    align-items: center;
    gap: 15px;
}

.user-name {
    color: var(--neon-cyan);
    font-size: 1.1rem;
}

.btn-logout {
    padding: 10px 20px;
    background: rgba(255, 68, 68, 0.2);
    border: 1px solid var(--neon-red);
    border-radius: 10px;
    color: var(--neon-red);
    text-decoration: none;
    transition: all 0.3s;
    cursor: pointer;
}

.btn-logout:hover {
    background: var(--neon-red);
    color: #fff;
    box-shadow: 0 0 20px rgba(255, 68, 68, 0.5);
}

/* Countdown Section */
.countdown-section {
    text-align: center;
    background: linear-gradient(135deg, rgba(0, 245, 255, 0.1), rgba(255, 0, 255, 0.1));
}

.countdown-header h2 {
    font-size: 1.5rem;
    margin-bottom: 10px;
}

.target-date {
    color: var(--text-secondary);
    margin-bottom: 20px;
}

.countdown-display {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 15px;
    flex-wrap: wrap;
}

.countdown-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    min-width: 80px;
}

.countdown-number {
    font-size: 3rem;
    font-weight: bold;
    background: linear-gradient(180deg, var(--neon-cyan), var(--neon-pink));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 0 30px rgba(0, 245, 255, 0.5);
}

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

.countdown-separator {
    font-size: 2.5rem;
    color: var(--neon-cyan);
    animation: blink 1s ease-in-out infinite;
}

@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.3; }
}

.today-info {
    margin-top: 20px;
    padding: 15px;
    background: rgba(0, 255, 136, 0.1);
    border-radius: 10px;
    border: 1px solid var(--neon-green);
}

.today-label {
    color: var(--neon-green);
    margin-left: 10px;
}

.today-date {
    color: var(--text-primary);
    font-weight: bold;
}

/* Navigation Tabs */
.nav-tabs {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin-bottom: 20px;
}

.tab-btn {
    flex: 1;
    min-width: 120px;
    padding: 15px 20px;
    background: var(--bg-card);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-size: 1rem;
}

.tab-btn:hover {
    border-color: var(--neon-cyan);
    color: var(--text-primary);
}

.tab-btn.active {
    background: linear-gradient(135deg, rgba(0, 245, 255, 0.2), rgba(255, 0, 255, 0.2));
    border-color: var(--neon-cyan);
    color: var(--text-primary);
    box-shadow: 0 0 20px rgba(0, 245, 255, 0.3);
}

.tab-icon {
    font-size: 1.2rem;
}

/* Tab Content */
.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
    animation: fadeIn 0.5s ease;
}

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

/* Calendar */
.calendar-container {
    padding: 20px;
}

.calendar-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.calendar-header h3 {
    font-size: 1.3rem;
    color: var(--neon-cyan);
}

.nav-btn {
    width: 40px;
    height: 40px;
    background: rgba(0, 245, 255, 0.1);
    border: 1px solid var(--neon-cyan);
    border-radius: 50%;
    color: var(--neon-cyan);
    font-size: 1.2rem;
    cursor: pointer;
    transition: all 0.3s;
}

.nav-btn:hover {
    background: var(--neon-cyan);
    color: var(--bg-dark);
}

.calendar-weekdays {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 5px;
    margin-bottom: 10px;
    text-align: center;
}

.calendar-weekdays span {
    padding: 10px;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.calendar-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 5px;
}

.calendar-day {
    aspect-ratio: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.3s;
    padding: 5px;
    font-size: 0.9rem;
    position: relative;
    overflow: hidden;
}

.calendar-day:hover {
    border-color: var(--neon-cyan);
    transform: scale(1.05);
}

.calendar-day.today {
    border-color: var(--neon-green);
    box-shadow: 0 0 15px rgba(0, 255, 136, 0.3);
}

.calendar-day.has-homework {
    background: rgba(255, 102, 0, 0.2);
    border-color: var(--neon-orange);
}

.calendar-day.has-exam {
    background: rgba(255, 68, 68, 0.2);
    border-color: var(--neon-red);
}

.calendar-day.has-study {
    background: rgba(0, 245, 255, 0.1);
}

.calendar-day.disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

.day-number {
    font-weight: bold;
    margin-bottom: 3px;
}

.day-emojis {
    font-size: 0.8rem;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 2px;
}

.calendar-legend {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 20px;
    flex-wrap: wrap;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.legend-color {
    width: 20px;
    height: 20px;
    border-radius: 5px;
}

.legend-color.study {
    background: rgba(0, 245, 255, 0.3);
    border: 1px solid var(--neon-cyan);
}

.legend-color.homework {
    background: rgba(255, 102, 0, 0.3);
    border: 1px solid var(--neon-orange);
}

.legend-color.exam {
    background: rgba(255, 68, 68, 0.3);
    border: 1px solid var(--neon-red);
}

/* Planning */
.planning-container {
    padding: 25px;
}

.planning-header h2 {
    color: var(--neon-cyan);
    margin-bottom: 10px;
}

.planning-desc {
    color: var(--text-secondary);
    margin-bottom: 25px;
}

.date-selector {
    margin-bottom: 25px;
}

.date-selector label {
    display: block;
    margin-bottom: 8px;
    color: var(--text-secondary);
}

.date-selector input {
    width: 100%;
    max-width: 300px;
    padding: 12px 15px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 10px;
    color: var(--text-primary);
    font-size: 1rem;
}

.date-selector input:focus {
    outline: none;
    border-color: var(--neon-cyan);
    box-shadow: 0 0 15px rgba(0, 245, 255, 0.2);
}

.subject-selector h3,
.time-slot-selector h3 {
    color: var(--text-secondary);
    margin-bottom: 15px;
    font-size: 1rem;
}

.subject-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 10px;
    margin-bottom: 25px;
}

.subject-btn {
    padding: 15px;
    background: rgba(255, 255, 255, 0.05);
    border: 2px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    color: var(--text-primary);
    cursor: pointer;
    transition: all 0.3s;
    font-size: 0.95rem;
}

.subject-btn:hover {
    border-color: var(--neon-cyan);
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(0, 245, 255, 0.2);
}

.subject-btn.selected {
    background: linear-gradient(135deg, rgba(0, 245, 255, 0.3), rgba(255, 0, 255, 0.3));
    border-color: var(--neon-cyan);
    box-shadow: 0 0 20px rgba(0, 245, 255, 0.4);
}

.time-slots {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 15px;
}

.time-slot-btn {
    padding: 12px 20px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 10px;
    color: var(--text-primary);
    cursor: pointer;
    transition: all 0.3s;
}

.time-slot-btn:hover {
    border-color: var(--neon-pink);
}

.time-slot-btn.selected {
    background: linear-gradient(135deg, rgba(255, 0, 255, 0.2), rgba(179, 71, 255, 0.2));
    border-color: var(--neon-pink);
}

.custom-time {
    margin-bottom: 25px;
}

.custom-time label {
    display: block;
    margin-bottom: 8px;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.custom-time input {
    width: 100%;
    max-width: 300px;
    padding: 12px 15px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 10px;
    color: var(--text-primary);
}

.neon-btn {
    padding: 15px 30px;
    background: linear-gradient(135deg, var(--neon-cyan), var(--neon-pink));
    border: none;
    border-radius: 15px;
    color: #fff;
    font-size: 1.1rem;
    cursor: pointer;
    transition: all 0.3s;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    box-shadow: 0 0 30px rgba(0, 245, 255, 0.3);
}

.neon-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 40px rgba(0, 245, 255, 0.5);
}

.neon-btn.success {
    background: linear-gradient(135deg, var(--neon-green), var(--neon-cyan));
}

.neon-btn.danger {
    background: linear-gradient(135deg, var(--neon-red), var(--neon-orange));
}

.btn-add-plan {
    margin-bottom: 30px;
}

.today-plans {
    margin-top: 30px;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.today-plans h3 {
    color: var(--neon-cyan);
    margin-bottom: 20px;
}

.plan-item {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 15px;
    margin-bottom: 10px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all 0.3s;
}

.plan-item:hover {
    border-color: var(--neon-cyan);
}

.plan-info {
    display: flex;
    align-items: center;
    gap: 15px;
}

.plan-emoji {
    font-size: 1.5rem;
}

.plan-details h4 {
    color: var(--text-primary);
    margin-bottom: 5px;
}

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

.plan-actions {
    display: flex;
    gap: 10px;
}

.plan-btn {
    padding: 8px 15px;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s;
    border: none;
    font-size: 0.9rem;
}

.plan-btn.study {
    background: rgba(0, 245, 255, 0.2);
    color: var(--neon-cyan);
    border: 1px solid var(--neon-cyan);
}

.plan-btn.study:hover {
    background: var(--neon-cyan);
    color: var(--bg-dark);
}

.plan-btn.edit {
    background: rgba(255, 255, 0, 0.2);
    color: var(--neon-yellow);
    border: 1px solid var(--neon-yellow);
}

.plan-btn.delete {
    background: rgba(255, 68, 68, 0.2);
    color: var(--neon-red);
    border: 1px solid var(--neon-red);
}

.plan-btn.delete:hover {
    background: var(--neon-red);
    color: #fff;
}

/* Homework */
.homework-container,
.exams-container {
    padding: 25px;
}

.homework-header h2,
.exams-header h2 {
    color: var(--neon-cyan);
    margin-bottom: 20px;
}

.add-homework-form,
.add-exam-form {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    padding: 20px;
    margin-bottom: 25px;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
    margin-bottom: 15px;
}

.form-group {
    margin-bottom: 15px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 10px;
    color: var(--text-primary);
    font-size: 1rem;
    font-family: inherit;
}

.form-group select {
    cursor: pointer;
}

.form-group textarea {
    min-height: 100px;
    resize: vertical;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--neon-cyan);
    box-shadow: 0 0 15px rgba(0, 245, 255, 0.2);
}

.filter-bar {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 10px 20px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 10px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.3s;
}

.filter-btn:hover,
.filter-btn.active {
    border-color: var(--neon-cyan);
    color: var(--text-primary);
}

.filter-btn.active {
    background: rgba(0, 245, 255, 0.1);
}

.homework-list,
.exams-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.homework-item,
.exam-item {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 15px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all 0.3s;
}

.homework-item:hover,
.exam-item:hover {
    border-color: var(--neon-cyan);
}

.homework-item.done {
    opacity: 0.6;
    border-color: var(--neon-green);
}

.homework-info,
.exam-info {
    display: flex;
    align-items: center;
    gap: 15px;
    flex: 1;
}

.homework-emoji,
.exam-emoji {
    font-size: 1.5rem;
}

.homework-details h4,
.exam-details h4 {
    color: var(--text-primary);
    margin-bottom: 5px;
}

.homework-meta,
.exam-meta {
    display: flex;
    gap: 15px;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.homework-actions,
.exam-actions {
    display: flex;
    gap: 10px;
    align-items: center;
}

.check-btn {
    width: 35px;
    height: 35px;
    border-radius: 50%;
    background: rgba(0, 255, 136, 0.2);
    border: 2px solid var(--neon-green);
    color: var(--neon-green);
    cursor: pointer;
    transition: all 0.3s;
    font-size: 1.2rem;
}

.check-btn:hover {
    background: var(--neon-green);
    color: var(--bg-dark);
}

.check-btn.checked {
    background: var(--neon-green);
    color: var(--bg-dark);
}

.action-btn {
    padding: 8px 12px;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s;
    border: none;
    font-size: 0.9rem;
}

.action-btn.edit {
    background: rgba(255, 255, 0, 0.2);
    color: var(--neon-yellow);
}

.action-btn.delete {
    background: rgba(255, 68, 68, 0.2);
    color: var(--neon-red);
}

.action-btn.delete:hover {
    background: var(--neon-red);
    color: #fff;
}

/* Stats */
.stats-container {
    padding: 25px;
}

.stats-header h2 {
    color: var(--neon-cyan);
    margin-bottom: 25px;
}

.stats-summary {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 15px;
    margin-bottom: 30px;
}

.stat-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    padding: 20px;
    text-align: center;
    transition: all 0.3s;
}

.stat-card:hover {
    border-color: var(--neon-cyan);
    transform: translateY(-5px);
}

.stat-icon {
    font-size: 2rem;
    display: block;
    margin-bottom: 10px;
}

.stat-number {
    font-size: 2rem;
    font-weight: bold;
    background: linear-gradient(90deg, var(--neon-cyan), var(--neon-pink));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: block;
}

.stat-label {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-top: 5px;
}

.chart-container {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    padding: 20px;
    margin-bottom: 25px;
}

.chart-container h3 {
    color: var(--neon-cyan);
    margin-bottom: 20px;
    text-align: center;
}

.chart-wrapper {
    position: relative;
    height: 300px;
    margin-bottom: 15px;
}

.chart-legend-custom {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 15px;
}

.legend-subject {
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 5px;
}

.subject-stats {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    padding: 20px;
}

.subject-stats h3 {
    color: var(--neon-cyan);
    margin-bottom: 20px;
}

.subject-stat-item {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 12px;
    background: rgba(255, 255, 255, 0.02);
    border-radius: 10px;
    margin-bottom: 10px;
}

.subject-stat-emoji {
    font-size: 1.5rem;
}

.subject-stat-info {
    flex: 1;
}

.subject-stat-name {
    color: var(--text-primary);
    margin-bottom: 5px;
}

.subject-stat-bar {
    height: 8px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
    overflow: hidden;
}

.subject-stat-fill {
    height: 100%;
    border-radius: 4px;
    transition: width 0.5s ease;
}

.subject-stat-percent {
    color: var(--text-secondary);
    font-size: 0.9rem;
    min-width: 50px;
    text-align: left;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    z-index: 1000;
    justify-content: center;
    align-items: center;
    padding: 20px;
}

.modal.active {
    display: flex;
    animation: modalFadeIn 0.3s ease;
}

@keyframes modalFadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.modal-content {
    max-width: 500px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    animation: modalSlideIn 0.3s ease;
}

@keyframes modalSlideIn {
    from { transform: translateY(-50px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

.modal-close {
    position: absolute;
    top: 15px;
    left: 15px;
    font-size: 2rem;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.3s;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 50%;
}

.modal-close:hover {
    color: var(--neon-red);
    background: rgba(255, 68, 68, 0.2);
}

.modal-content h2 {
    color: var(--neon-cyan);
    margin-bottom: 20px;
    padding-left: 40px;
}

.modal-form {
    margin-top: 20px;
}

.source-options {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
}

.source-option {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 15px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.3s;
}

.source-option:hover {
    border-color: var(--neon-cyan);
}

.source-option input {
    width: auto;
}

.percentage-input {
    display: flex;
    align-items: center;
    gap: 15px;
}

.percentage-input input[type="range"] {
    flex: 1;
    -webkit-appearance: none;
    height: 10px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 5px;
    outline: none;
}

.percentage-input input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 25px;
    height: 25px;
    background: linear-gradient(135deg, var(--neon-cyan), var(--neon-pink));
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 0 0 15px rgba(0, 245, 255, 0.5);
}

#percentage-display {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--neon-cyan);
    min-width: 60px;
}

.previous-progress {
    margin-top: 15px;
    padding: 15px;
    background: rgba(0, 255, 136, 0.1);
    border: 1px solid var(--neon-green);
    border-radius: 10px;
    font-size: 0.9rem;
}

.previous-progress strong {
    color: var(--neon-green);
}

.day-detail-modal {
    max-width: 600px;
}

#day-modal-title {
    margin-bottom: 20px;
}

.day-section {
    margin-bottom: 20px;
    padding: 15px;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 12px;
}

.day-section h4 {
    color: var(--neon-cyan);
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.day-section-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px;
    background: rgba(255, 255, 255, 0.02);
    border-radius: 8px;
    margin-bottom: 8px;
}

.day-section-item:last-child {
    margin-bottom: 0;
}

.no-data {
    color: var(--text-secondary);
    text-align: center;
    padding: 20px;
}

/* Responsive */
@media (max-width: 768px) {
    .header {
        flex-direction: column;
        gap: 15px;
    }
    
    .countdown-display {
        gap: 10px;
    }
    
    .countdown-number {
        font-size: 2rem;
    }
    
    .nav-tabs {
        flex-direction: column;
    }
    
    .tab-btn {
        width: 100%;
    }
    
    .subject-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .calendar-day {
        font-size: 0.8rem;
    }
    
    .day-emojis {
        font-size: 0.6rem;
    }
    
    .stats-summary {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .homework-item,
    .exam-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 15px;
    }
    
    .homework-actions,
    .exam-actions {
        width: 100%;
        justify-content: flex-end;
    }
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.05);
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(var(--neon-cyan), var(--neon-pink));
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(var(--neon-pink), var(--neon-cyan));
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 40px 20px;
    color: var(--text-secondary);
}

.empty-state-icon {
    font-size: 3rem;
    margin-bottom: 15px;
    opacity: 0.5;
}

.empty-state-text {
    font-size: 1.1rem;
}

/* Loading */
.loading {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 40px;
}

.loading-spinner {
    width: 50px;
    height: 50px;
    border: 3px solid rgba(255, 255, 255, 0.1);
    border-top-color: var(--neon-cyan);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Toast Notification */
.toast {
    position: fixed;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    padding: 15px 30px;
    background: linear-gradient(135deg, var(--neon-cyan), var(--neon-pink));
    border-radius: 15px;
    color: #fff;
    font-size: 1rem;
    z-index: 2000;
    opacity: 0;
    transition: all 0.3s ease;
}

.toast.show {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}

.toast.success {
    background: linear-gradient(135deg, var(--neon-green), var(--neon-cyan));
}

.toast.error {
    background: linear-gradient(135deg, var(--neon-red), var(--neon-orange));
}
/* اضافات برای بخش نمایش برنامه‌های یک تاریخ */
.glass-card-dark {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    padding: 20px;
    margin-bottom: 25px;
}

.glass-card-dark h3 {
    color: var(--neon-cyan);
    margin-bottom: 15px;
}

.date-picker-row {
    display: flex;
    gap: 10px;
    margin-bottom: 15px;
}

.date-picker-row input {
    flex: 1;
    padding: 12px 15px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 10px;
    color: var(--text-primary);
    font-size: 1rem;
}

.neon-btn-small {
    padding: 12px 20px;
    background: linear-gradient(135deg, var(--neon-cyan), var(--neon-pink));
    border: none;
    border-radius: 10px;
    color: #fff;
    cursor: pointer;
    transition: all 0.3s;
    font-size: 0.95rem;
}

.neon-btn-small:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(0, 245, 255, 0.3);
}

.selected-date-plans {
    max-height: 400px;
    overflow-y: auto;
}

/* دکمه حذف در مودال روز */
.day-section-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px;
    background: rgba(255, 255, 255, 0.02);
    border-radius: 8px;
    margin-bottom: 8px;
}

.day-section-item .item-info {
    display: flex;
    align-items: center;
    gap: 10px;
    flex: 1;
}

.day-section-item .item-actions {
    display: flex;
    gap: 8px;
}

.day-action-btn {
    padding: 6px 12px;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.3s;
    border: none;
    font-size: 0.85rem;
}

.day-action-btn.edit {
    background: rgba(255, 255, 0, 0.2);
    color: var(--neon-yellow);
}

.day-action-btn.delete {
    background: rgba(255, 68, 68, 0.2);
    color: var(--neon-red);
}

.day-action-btn.delete:hover {
    background: var(--neon-red);
    color: #fff;
}

/* اسلایدر درصد */
.percentage-input {
    display: flex;
    align-items: center;
    gap: 15px;
}

.percentage-input input[type="range"] {
    flex: 1;
    -webkit-appearance: none;
    height: 10px;
    background: linear-gradient(90deg, var(--neon-green), var(--neon-cyan), var(--neon-pink));
    border-radius: 5px;
    outline: none;
}

.percentage-input input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 25px;
    height: 25px;
    background: linear-gradient(135deg, var(--neon-cyan), var(--neon-pink));
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 0 0 15px rgba(0, 245, 255, 0.5);
}

#percentage-display {
    font-size: 1.5rem;
    font-weight: bold;
    background: linear-gradient(90deg, var(--neon-cyan), var(--neon-pink));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    min-width: 60px;
    text-align: center;
}

.previous-progress {
    margin-top: 15px;
    padding: 15px;
    background: rgba(0, 255, 136, 0.1);
    border: 1px solid var(--neon-green);
    border-radius: 10px;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.previous-progress strong {
    color: var(--neon-green);
}

.previous-progress .remaining {
    color: var(--neon-orange);
}

/* آمار درس‌ها */
.subject-stat-item {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 12px;
    background: rgba(255, 255, 255, 0.02);
    border-radius: 10px;
    margin-bottom: 10px;
}

.subject-stat-emoji {
    font-size: 1.5rem;
}

.subject-stat-info {
    flex: 1;
}

.subject-stat-name {
    color: var(--text-primary);
    margin-bottom: 5px;
}

.subject-stat-count {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 5px;
}

.subject-stat-bar {
    height: 8px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
    overflow: hidden;
}

.subject-stat-fill {
    height: 100%;
    border-radius: 4px;
    transition: width 0.5s ease;
}

.subject-stat-percent {
    color: var(--neon-cyan);
    font-size: 1rem;
    font-weight: bold;
    min-width: 60px;
    text-align: left;
}

/* نمودار */
.chart-wrapper {
    position: relative;
    height: 300px;
    margin-bottom: 15px;
    background: rgba(255, 255, 255, 0.02);
    border-radius: 10px;
    padding: 10px;
}
/* ============================================
   STYLES FOR DATE PLANS VIEWER
   ============================================ */

.date-plans-viewer {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(0, 245, 255, 0.3);
    border-radius: 20px;
    padding: 25px;
    margin-bottom: 25px;
}

.date-plans-viewer h3 {
    color: var(--neon-cyan);
    margin-bottom: 20px;
    font-size: 1.2rem;
    display: flex;
    align-items: center;
    gap: 10px;
}

.date-picker-row {
    display: flex;
    gap: 15px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.date-picker-row input[type="date"] {
    flex: 1;
    min-width: 200px;
    padding: 14px 18px;
    background: rgba(255, 255, 255, 0.05);
    border: 2px solid rgba(0, 245, 255, 0.3);
    border-radius: 12px;
    color: var(--text-primary);
    font-size: 1rem;
    font-family: inherit;
    cursor: pointer;
    transition: all 0.3s;
}

.date-picker-row input[type="date"]:focus {
    outline: none;
    border-color: var(--neon-cyan);
    box-shadow: 0 0 20px rgba(0, 245, 255, 0.3);
}

.date-picker-row input[type="date"]::-webkit-calendar-picker-indicator {
    filter: invert(1);
    cursor: pointer;
}

.neon-btn-small {
    padding: 14px 25px;
    background: linear-gradient(135deg, var(--neon-cyan), var(--neon-pink));
    border: none;
    border-radius: 12px;
    color: #fff;
    cursor: pointer;
    transition: all 0.3s;
    font-size: 1rem;
    font-family: inherit;
    display: flex;
    align-items: center;
    gap: 8px;
}

.neon-btn-small:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 25px rgba(0, 245, 255, 0.4);
}

.neon-btn-small:active {
    transform: translateY(0);
}

.selected-date-plans {
    max-height: 500px;
    overflow-y: auto;
    padding: 10px;
    background: rgba(0, 0, 0, 0.2);
    border-radius: 15px;
}

.selected-date-plans::-webkit-scrollbar {
    width: 8px;
}

.selected-date-plans::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 4px;
}

.selected-date-plans::-webkit-scrollbar-thumb {
    background: linear-gradient(var(--neon-cyan), var(--neon-pink));
    border-radius: 4px;
}

/* Plan Item Styling */
.plan-item {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    padding: 18px 20px;
    margin-bottom: 12px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all 0.3s;
}

.plan-item:hover {
    border-color: var(--neon-cyan);
    transform: translateX(-5px);
    box-shadow: 0 5px 20px rgba(0, 245, 255, 0.1);
}

.plan-item:last-child {
    margin-bottom: 0;
}

.plan-info {
    display: flex;
    align-items: center;
    gap: 15px;
    flex: 1;
}

.plan-emoji {
    font-size: 2rem;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 12px;
}

.plan-details h4 {
    color: var(--text-primary);
    margin-bottom: 5px;
    font-size: 1.1rem;
}

.plan-time {
    color: var(--text-secondary);
    font-size: 0.9rem;
    display: block;
    margin-bottom: 3px;
}

.plan-details span[style*="var(--neon-green)"],
.plan-details span[style*="var(--neon-yellow)"] {
    font-size: 0.9rem;
    display: block;
}

.plan-actions {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.plan-btn {
    padding: 10px 16px;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.3s;
    border: none;
    font-size: 0.9rem;
    font-family: inherit;
}

.plan-btn.study {
    background: linear-gradient(135deg, rgba(0, 255, 136, 0.2), rgba(0, 245, 255, 0.2));
    color: var(--neon-green);
    border: 1px solid var(--neon-green);
}

.plan-btn.study:hover {
    background: var(--neon-green);
    color: var(--bg-dark);
    box-shadow: 0 0 20px rgba(0, 255, 136, 0.4);
}

.plan-btn.edit {
    background: rgba(255, 255, 0, 0.15);
    color: var(--neon-yellow);
    border: 1px solid var(--neon-yellow);
}

.plan-btn.edit:hover {
    background: var(--neon-yellow);
    color: var(--bg-dark);
}

.plan-btn.delete {
    background: rgba(255, 68, 68, 0.15);
    color: var(--neon-red);
    border: 1px solid var(--neon-red);
}

.plan-btn.delete:hover {
    background: var(--neon-red);
    color: #fff;
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 40px 20px;
    color: var(--text-secondary);
}

.empty-state-icon {
    font-size: 3rem;
    margin-bottom: 15px;
    opacity: 0.5;
}

.empty-state-text {
    font-size: 1rem;
}

/* No Data State */
.no-data {
    text-align: center;
    padding: 30px;
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* ============================================
   STYLES FOR DAY MODAL
   ============================================ */

.day-section {
    margin-bottom: 20px;
    padding: 20px;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 15px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.day-section:last-child {
    margin-bottom: 0;
}

.day-section h4 {
    color: var(--neon-cyan);
    margin-bottom: 15px;
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    gap: 10px;
    padding-bottom: 10px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.day-section-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 15px;
    background: rgba(255, 255, 255, 0.02);
    border-radius: 10px;
    margin-bottom: 8px;
    transition: all 0.3s;
}

.day-section-item:hover {
    background: rgba(255, 255, 255, 0.05);
}

.day-section-item:last-child {
    margin-bottom: 0;
}

.item-info {
    display: flex;
    align-items: center;
    gap: 12px;
    flex: 1;
    flex-wrap: wrap;
}

.item-info span:first-child {
    font-size: 1rem;
}

.item-actions {
    display: flex;
    gap: 8px;
}

.day-action-btn {
    padding: 8px 14px;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s;
    border: none;
    font-size: 0.85rem;
    font-family: inherit;
}

.day-action-btn.edit {
    background: rgba(255, 255, 0, 0.15);
    color: var(--neon-yellow);
}

.day-action-btn.edit:hover {
    background: var(--neon-yellow);
    color: var(--bg-dark);
}

.day-action-btn.delete {
    background: rgba(255, 68, 68, 0.15);
    color: var(--neon-red);
}

.day-action-btn.delete:hover {
    background: var(--neon-red);
    color: #fff;
}

/* ============================================
   STYLES FOR STATS SECTION
   ============================================ */

.subject-stat-item {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 15px 18px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    margin-bottom: 10px;
    transition: all 0.3s;
}

.subject-stat-item:hover {
    border-color: rgba(0, 245, 255, 0.3);
    transform: translateX(-3px);
}

.subject-stat-item:last-child {
    margin-bottom: 0;
}

.subject-stat-emoji {
    font-size: 1.8rem;
    width: 45px;
    height: 45px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 10px;
}

.subject-stat-info {
    flex: 1;
}

.subject-stat-name {
    color: var(--text-primary);
    margin-bottom: 6px;
    font-size: 1rem;
    font-weight: bold;
}

.subject-stat-count {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.subject-stat-bar {
    height: 8px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
    overflow: hidden;
}

.subject-stat-fill {
    height: 100%;
    border-radius: 4px;
    transition: width 0.5s ease;
    box-shadow: 0 0 10px currentColor;
}

.subject-stat-percent {
    color: var(--neon-cyan);
    font-size: 1.1rem;
    font-weight: bold;
    min-width: 60px;
    text-align: left;
}

/* ============================================
   STYLES FOR STUDY MODAL
   ============================================ */

.percentage-input {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-top: 10px;
}

.percentage-input input[type="range"] {
    flex: 1;
    -webkit-appearance: none;
    height: 12px;
    background: linear-gradient(90deg, 
        var(--neon-green) 0%, 
        var(--neon-cyan) 50%, 
        var(--neon-pink) 100%);
    border-radius: 6px;
    outline: none;
    cursor: pointer;
}

.percentage-input input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 28px;
    height: 28px;
    background: linear-gradient(135deg, var(--neon-cyan), var(--neon-pink));
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 0 0 20px rgba(0, 245, 255, 0.6);
    transition: all 0.3s;
}

.percentage-input input[type="range"]::-webkit-slider-thumb:hover {
    transform: scale(1.1);
    box-shadow: 0 0 30px rgba(0, 245, 255, 0.8);
}

#percentage-display {
    font-size: 1.8rem;
    font-weight: bold;
    background: linear-gradient(90deg, var(--neon-cyan), var(--neon-pink));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    min-width: 70px;
    text-align: center;
}

.previous-progress {
    margin-top: 15px;
    padding: 15px 18px;
    background: rgba(0, 255, 136, 0.1);
    border: 1px solid var(--neon-green);
    border-radius: 12px;
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.8;
}

.previous-progress strong {
    color: var(--neon-green);
}

.previous-progress .remaining {
    color: var(--neon-orange);
    font-weight: bold;
}

/* ============================================
   RESPONSIVE STYLES
   ============================================ */

@media (max-width: 768px) {
    .date-plans-viewer {
        padding: 15px;
    }
    
    .date-picker-row {
        flex-direction: column;
    }
    
    .date-picker-row input[type="date"] {
        min-width: 100%;
    }
    
    .neon-btn-small {
        width: 100%;
        justify-content: center;
    }
    
    .plan-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 15px;
    }
    
    .plan-actions {
        width: 100%;
        justify-content: flex-end;
    }
    
    .day-section-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }
    
    .item-actions {
        width: 100%;
        justify-content: flex-end;
    }
    
    .subject-stat-item {
        flex-wrap: wrap;
    }
    
    .subject-stat-percent {
        width: 100%;
        text-align: center;
        margin-top: 10px;
        padding-top: 10px;
        border-top: 1px solid rgba(255, 255, 255, 0.1);
    }
    
    .percentage-input {
        flex-direction: column;
        gap: 10px;
    }
    
    #percentage-display {
        font-size: 1.5rem;
    }
}