:root {
    --primary-color: #0d9488;
    --secondary-color: #0f766e;
    --accent-color: #5eead4;
    --bg-color: #f0fdf4;
    --text-color: #134e4a;
    --border-color: #99f6e4;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --gradient: linear-gradient(135deg, #0d9488 0%, #0f766e 100%);
    --glass-bg: rgba(240, 253, 250, 0.8);
    --glass-border: rgba(153, 246, 228, 0.5);
    --font-scale: 1;
    --font-base: 1rem;
    --font-scale-base: 1;
    --shadow-light: 0 4px 20px rgba(0, 0, 0, 0.08);
    --shadow-medium: 0 8px 30px rgba(0, 0, 0, 0.12);
    --shadow-heavy: 0 15px 50px rgba(0, 0, 0, 0.18);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Dark Theme */
[data-theme="dark"] {
    --primary-color: #818cf8;
    --secondary-color: #a78bfa;
    --accent-color: #fbbf24;
    --bg-color: #0f172a;
    --text-color: #e2e8f0;
    --border-color: #374151;
    --success-color: #34d399;
    --warning-color: #f59e0b;
    --gradient: linear-gradient(135deg, #1e293b 0%, #334155 100%);
    --glass-bg: rgba(15, 23, 42, 0.8);
    --glass-border: rgba(55, 65, 81, 0.5);
    --font-scale: 1;
    --font-base: 1rem;
    --font-scale-base: 1;
    --shadow-light: 0 4px 20px rgba(0, 0, 0, 0.5);
    --shadow-medium: 0 8px 30px rgba(0, 0, 0, 0.6);
    --shadow-heavy: 0 15px 50px rgba(0, 0, 0, 0.7);
}

/* Ocean Theme */
[data-theme="ocean"] {
    --primary-color: #0ea5e9;
    --secondary-color: #06b6d4;
    --accent-color: #67e8f9;
    --bg-color: #f0f9ff;
    --text-color: #0c4a6e;
    --border-color: #bae6fd;
    --success-color: #22c55e;
    --warning-color: #f97316;
    --gradient: linear-gradient(135deg, #0ea5e9 0%, #06b6d4 100%);
    --glass-bg: rgba(240, 249, 255, 0.8);
    --glass-border: rgba(186, 230, 253, 0.5);
}

/* Sunset Theme */
[data-theme="sunset"] {
    --primary-color: #f97316;
    --secondary-color: #f59e0b;
    --accent-color: #fbbf24;
    --bg-color: #fffbeb;
    --text-color: #92400e;
    --border-color: #fed7aa;
    --success-color: #10b981;
    --warning-color: #ef4444;
    --gradient: linear-gradient(135deg, #f97316 0%, #f59e0b 100%);
    --glass-bg: rgba(255, 251, 235, 0.8);
    --glass-border: rgba(254, 215, 170, 0.5);
}

/* Forest Theme */
[data-theme="forest"] {
    --primary-color: #059669;
    --secondary-color: #10b981;
    --accent-color: #34d399;
    --bg-color: #f0fdf4;
    --text-color: #064e3b;
    --border-color: #bbf7d0;
    --success-color: #22c55e;
    --warning-color: #f59e0b;
    --gradient: linear-gradient(135deg, #059669 0%, #10b981 100%);
    --glass-bg: rgba(240, 253, 244, 0.8);
    --glass-border: rgba(187, 247, 208, 0.5);
}

/* Lavender Theme */
[data-theme="lavender"] {
    --primary-color: #8b5cf6;
    --secondary-color: #a855f7;
    --accent-color: #c084fc;
    --bg-color: #faf5ff;
    --text-color: #581c87;
    --border-color: #e9d5ff;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --gradient: linear-gradient(135deg, #8b5cf6 0%, #a855f7 100%);
    --glass-bg: rgba(250, 245, 255, 0.8);
    --glass-border: rgba(233, 213, 255, 0.5);
}

/* Rose Theme */
[data-theme="rose"] {
    --primary-color: #e11d48;
    --secondary-color: #f43f5e;
    --accent-color: #fb7185;
    --bg-color: #fff1f2;
    --text-color: #881337;
    --border-color: #fecdd3;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --gradient: linear-gradient(135deg, #e11d48 0%, #f43f5e 100%);
    --glass-bg: rgba(255, 241, 242, 0.8);
    --glass-border: rgba(254, 205, 211, 0.5);
}

/* Night Theme */
[data-theme="night"] {
    --primary-color: #3b82f6;
    --secondary-color: #6366f1;
    --accent-color: #8b5cf6;
    --bg-color: #111827;
    --text-color: #d1d5db;
    --border-color: #374151;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --gradient: linear-gradient(135deg, #3b82f6 0%, #6366f1 100%);
    --glass-bg: rgba(17, 24, 39, 0.8);
    --glass-border: rgba(55, 65, 81, 0.5);
}

/* Mint Theme */
[data-theme="mint"] {
    --primary-color: #0d9488;
    --secondary-color: #0f766e;
    --accent-color: #5eead4;
    --bg-color: #f0fdfa;
    --text-color: #134e4a;
    --border-color: #99f6e4;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --gradient: linear-gradient(135deg, #0d9488 0%, #0f766e 100%);
    --glass-bg: rgba(240, 253, 250, 0.8);
    --glass-border: rgba(153, 246, 228, 0.5);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    transition: font-size 0.2s ease-out;
}

body {
    font-family: 'Inter', sans-serif;
    background: var(--bg-color);
    background-image: 
        radial-gradient(circle at 20% 80%, rgba(120, 119, 198, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(255, 119, 198, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 40% 40%, rgba(120, 219, 255, 0.2) 0%, transparent 50%);
    color: var(--text-color);
    min-height: 100vh;
    font-size: calc(var(--font-base) * var(--font-scale));
    transition: var(--transition);
}

[data-theme="dark"] body {
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #334155 100%);
    background-image: 
        radial-gradient(circle at 20% 80%, rgba(129, 140, 248, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(167, 139, 250, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 40% 40%, rgba(34, 211, 238, 0.02) 0%, transparent 50%);
}

.app-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

.app-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 40px;
    padding: 20px;
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    border: 1px solid var(--glass-border);
    box-shadow: var(--shadow-medium);
    transition: var(--transition);
}

[data-theme="dark"] .app-header,
[data-theme="dark"] .calendar-container,
[data-theme="dark"] .reminders-panel,
[data-theme="dark"] .modal-content {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    box-shadow: var(--shadow-medium);
}

.app-title {
    font-size: calc(2rem * var(--font-scale));
    font-weight: 700;
    color: var(--primary-color);
    display: flex;
    align-items: center;
    gap: 10px;
}

.title-icon {
    font-size: 2.5rem;
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
    40% { transform: translateY(-10px); }
    60% { transform: translateY(-5px); }
}

.admin-toggle {
    background: var(--gradient);
    color: white;
    border: none;
    padding: calc(8px * var(--font-scale)) calc(16px * var(--font-scale));
    border-radius: 50px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: calc(4px * var(--font-scale));
}

.admin-toggle:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.main-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 30px;
}

.calendar-container {
    background: white;
    border-radius: 20px;
    padding: calc(20px * var(--font-scale));
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
}

.calendar-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
}

.nav-btn {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    padding: 10px 15px;
    border-radius: 50%;
    transition: all 0.3s ease;
}

.nav-btn:hover {
    background: var(--accent-color);
    transform: scale(1.1);
}

.current-month {
    font-size: calc(1.5rem * var(--font-scale));
    font-weight: 600;
    color: var(--primary-color);
}

.weekdays {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    text-align: center;
    font-weight: 600;
    color: var(--secondary-color);
    margin-bottom: 20px;
}

.weekdays div {
    font-size: calc(1rem * var(--font-scale));
}

.calendar-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: calc(10px * var(--font-scale));
}

.day {
    aspect-ratio: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    border-radius: 15px;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    background: var(--bg-color);
    overflow: hidden;
    font-size: calc(0.85rem * var(--font-scale));
}

[data-theme="dark"] .day {
    background: rgba(30, 41, 59, 0.7);
    border: 1px solid rgba(55, 65, 81, 0.3);
    color: var(--text-color);
}

[data-theme="dark"] .day.empty {
    background: transparent;
    border: none;
}

.day:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
}

.day.today {
    background: var(--gradient);
    color: white;
    font-weight: 600;
}

.day.has-reminders {
    position: relative;
    background: var(--bg-color);
    border: 2px solid transparent;
    color: white;
    font-weight: 600;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.day.has-reminders.asignacion-only {
    background: #8b5cf6;
}

.day.has-reminders.actividad-only {
    background: #f97316;
}

.day.has-reminders.both-categories {
    background: linear-gradient(135deg, #8b5cf6 50%, #f97316 50%);
}

.day.has-reminders::before {
    display: none;
}

.day.today.has-reminders {
    background: var(--gradient);
    color: white;
}

.reminders-panel {
    background: white;
    border-radius: 20px;
    padding: calc(20px * var(--font-scale));
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
}

.reminders-panel h3 {
    color: var(--primary-color);
    margin-bottom: 20px;
    font-size: calc(1.5rem * var(--font-scale));
    text-align: center;
}

.reminders-list {
    display: flex;
    flex-direction: column;
    gap: 15px;
    overflow: hidden;
}

.reminder-item {
    background: var(--bg-color);
    padding: 15px;
    border-radius: 15px;
    border-left: 4px solid var(--primary-color);
    transition: all 0.3s ease;
    animation: fadeInUp 0.5s ease;
}

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

.reminder-item:hover {
    transform: translateX(5px);
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.1);
}

.reminder-item.estudio {
    border-left-color: #667eea;
}

.reminder-item.predicacion {
    border-left-color: #f093fb;
}

.reminder-item.asamblea {
    border-left-color: #4facfe;
}

.reminder-item.personal {
    border-left-color: #43e97b;
}

.reminder-item.asignacion {
    border-left-color: #8b5cf6;
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.1) 0%, rgba(139, 92, 246, 0.05) 100%);
}

.reminder-item.actividad {
    border-left-color: #f97316;
    background: linear-gradient(135deg, rgba(249, 115, 22, 0.15) 0%, rgba(249, 115, 22, 0.05) 100%);
}

.reminder-title {
    font-weight: 700;
    font-size: calc(1.3rem * var(--font-scale));
    color: var(--text-color);
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

[data-theme="dark"] .reminder-title {
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

/* Ensure contrast for light backgrounds */
[data-theme="ocean"] .reminder-title,
[data-theme="forest"] .reminder-title,
[data-theme="mint"] .reminder-title {
    color: #1a202c;
    text-shadow: 0 1px 2px rgba(255, 255, 255, 0.8);
}

[data-theme="sunset"] .reminder-title,
[data-theme="rose"] .reminder-title {
    color: #1a202c;
    text-shadow: 0 1px 2px rgba(255, 255, 255, 0.8);
}

[data-theme="dark"] .reminder-title {
    color: #e2e8f0;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.5);
}

.reminder-item .reminder-title {
    font-weight: 700;
    font-size: calc(1.1rem * var(--font-scale));
    color: var(--text-color);
    margin-bottom: 4px;
}

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

.reminder-item .reminder-date {
    color: var(--secondary-color);
    font-size: calc(0.85rem * var(--font-scale));
    margin-top: 5px;
}

.reminder-category {
    color: var(--secondary-color);
    font-size: calc(0.85rem * var(--font-scale));
    text-transform: capitalize;
    margin-top: 2px;
    font-weight: 600;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.9) 0%, rgba(255, 255, 255, 0.7) 100%);
    padding: 4px 8px;
    border-radius: 12px;
    border: 1px solid rgba(139, 92, 246, 0.2);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

[data-theme="dark"] .reminder-category {
    background: rgba(30, 41, 59, 0.6);
    border: 1px solid rgba(55, 65, 81, 0.3);
}

.reminder-item.asignacion .reminder-category {
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.15) 0%, rgba(139, 92, 246, 0.05) 100%);
    color: #8b5cf6;
    border-color: rgba(139, 92, 246, 0.3);
}

.reminder-item.actividad .reminder-category {
    color: #f97316;
    border-color: rgba(249, 115, 22, 0.3);
}

.reminder-note {
    color: #718096;
    font-size: calc(0.9rem * var(--font-scale));
    margin-top: 5px;
    font-style: italic;
}

.reminder-actions {
    display: flex;
    gap: 8px;
    margin-top: 10px;
    justify-content: flex-end;
}

.category-indicators {
    position: absolute;
    bottom: calc(2px * var(--font-scale));
    display: flex;
    gap: calc(2px * var(--font-scale));
    z-index: 1;
}

.category-indicators span {
    width: calc(6px * var(--font-scale));
    height: calc(6px * var(--font-scale));
    border-radius: 50%;
    background: white;
    box-shadow: 0 0 6px rgba(0, 0, 0, 0.4);
}

.category-indicators span.asignacion {
    background: white;
}

.category-indicators span.actividad {
    background: white;
}

[data-theme="dark"] .category-indicators span {
    background: var(--text-color);
    box-shadow: 0 0 10px rgba(255, 255, 255, 0.1);
}

.day.has-reminders .day-number {
    color: white;
    position: relative;
    z-index: 1;
}

.day.has-reminders.pulse-purple,
.day.has-reminders.pulse-teal {
    animation: none;
}

.day.today.has-reminders {
    background: var(--gradient);
    color: white;
}

.action-btn {
    background: none;
    border: none;
    font-size: 1.2rem;
    cursor: pointer;
    padding: 5px;
    border-radius: 50%;
    transition: all 0.3s ease;
}

.edit-btn:hover {
    background: #f0f9ff;
    transform: scale(1.1);
}

.share-btn:hover {
    background: #f0fdf4;
    transform: scale(1.1);
}

.delete-btn:hover {
    background: #fef2f2;
    transform: scale(1.1);
}

.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(5px);
}

.modal-content {
    background: white;
    margin: 5% auto;
    padding: calc(25px * var(--font-scale));
    border-radius: 20px;
    width: 95%;
    max-width: 500px;
    animation: slideIn 0.3s ease;
}

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

.close {
    color: #aaa;
    float: right;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    transition: transform 0.3s ease;
}

.close:hover {
    color: var(--text-color);
}

form {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

input, textarea, select {
    padding: calc(12px * var(--font-scale));
    border: 1px solid var(--border-color);
    border-radius: 10px;
    font-family: inherit;
}

[data-theme="dark"] input,
[data-theme="dark"] textarea,
[data-theme="dark"] select {
    background: rgba(30, 41, 59, 0.8);
    border: 1px solid rgba(55, 65, 81, 0.5);
    color: var(--text-color);
}

.submit-btn {
    background: var(--gradient);
    color: white;
    border: none;
    padding: 15px;
    border-radius: 10px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s ease;
}

.submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.admin-panel {
    position: fixed;
    right: -400px;
    top: 0;
    width: 400px;
    height: 100%;
    background: white;
    box-shadow: -5px 0 20px rgba(0, 0, 0, 0.1);
    transition: right 0.3s ease;
    overflow-y: auto;
    z-index: 2000;
}

.admin-panel.active {
    right: 0;
}

.admin-content {
    padding: calc(20px * var(--font-scale));
}

.admin-content h3 {
    color: var(--primary-color);
    margin-bottom: 30px;
    font-size: calc(1.5rem * var(--font-scale));
}

.close-admin {
    position: absolute;
    top: 20px;
    right: 20px;
    background: none;
    border: none;
    font-size: 2rem;
    cursor: pointer;
}

.admin-section {
    margin-bottom: 30px;
}

.admin-section h4 {
    margin-bottom: 15px;
    color: var(--secondary-color);
    font-size: calc(1.2rem * var(--font-scale));
}

.admin-section.theme-section {
    margin-bottom: 40px;
    padding: 25px;
    background: var(--glass-bg);
    border-radius: 20px;
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(15px);
}

.admin-section.theme-section h4 {
    margin-bottom: 20px;
    font-size: 1.3rem;
    color: var(--primary-color);
    display: flex;
    align-items: center;
    gap: 10px;
}

.admin-reminders-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.admin-reminder-item {
    background: var(--bg-color);
    padding: 15px;
    border-radius: 10px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.delete-btn {
    background: #e53e3e;
    color: white;
    border: none;
    padding: 5px 10px;
    border-radius: 5px;
    cursor: pointer;
}

#allReminders {
    max-height: 400px;
    overflow-y: auto;
}

.quick-add-section {
    text-align: center;
    margin-bottom: 30px;
}

.quick-add-btn {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    padding: calc(12px * var(--font-scale)) calc(24px * var(--font-scale));
    border-radius: 50px;
    font-size: calc(0.9rem * var(--font-scale));
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
    display: inline-flex;
    align-items: center;
    gap: 12px;
}

[data-theme="dark"] .quick-add-btn {
    background: linear-gradient(135deg, #818cf8 0%, #a78bfa 100%);
    box-shadow: 0 4px 15px rgba(129, 140, 248, 0.4);
}

.plus-icon {
    background: rgba(255, 255, 255, 0.2);
    width: calc(28px * var(--font-scale));
    height: calc(28px * var(--font-scale));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: calc(1.2rem * var(--font-scale));
    font-weight: 300;
}

.btn-text {
    font-size: 1rem;
}

#reminderCategory {
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 10px;
    font-family: inherit;
    background-color: white;
}

#reminderDate {
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 10px;
    font-family: inherit;
}

#reminderNote {
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 10px;
    font-family: inherit;
    resize: vertical;
}

.profile-section {
    display: flex;
    gap: 10px;
    align-items: center;
}

.settings-input {
    flex: 1;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 10px;
    font-family: inherit;
}

.settings-select {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 10px;
    font-family: inherit;
    background-color: white;
}

.theme-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
    gap: 15px;
    margin-top: 20px;
}

.theme-option {
    background: var(--glass-bg);
    border: 2px solid transparent;
    border-radius: 15px;
    padding: 15px 10px;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    text-align: center;
    backdrop-filter: blur(10px);
}

.theme-option:hover {
    transform: translateY(-5px) scale(1.05);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
    border-color: var(--primary-color);
}

.theme-option.active {
    border-color: var(--primary-color);
    background: var(--glass-bg);
    box-shadow: 0 0 20px rgba(102, 126, 234, 0.3);
}

.theme-preview {
    width: 50px;
    height: 50px;
    border-radius: 15px;
    margin: 0 auto 10px;
    position: relative;
    overflow: hidden;
}

.theme-option span {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-color);
}

.theme-option[data-theme="default"] .theme-preview {
    background: linear-gradient(135deg, #0d9488 0%, #0f766e 100%);
}

/* Dark mode specific styles */
[data-theme="dark"] {
    --bg-color: #0f172a;
    --text-color: #e2e8f0;
    --border-color: #374151;
    --glass-bg: rgba(15, 23, 42, 0.8);
    --glass-border: rgba(55, 65, 81, 0.5);
}

/* Smooth theme transition */
* {
    transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}

/* Enhanced dark mode toggle */
.theme-toggle-container {
    display: flex;
    justify-content: center;
    margin: 20px 0;
}

.theme-toggle {
    position: relative;
    width: 80px;
    height: 40px;
    background: var(--border-color);
    border-radius: 20px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.theme-toggle.active {
    background: var(--primary-color);
}

.theme-toggle-slider {
    position: absolute;
    top: 4px;
    left: 4px;
    width: 32px;
    height: 32px;
    background: white;
    border-radius: 50%;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
}

.theme-toggle.active .theme-toggle-slider {
    transform: translateX(40px);
}

.data-actions {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.data-btn {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 20px;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.3s ease;
}

.import-btn {
    background: #48bb78;
    color: white;
}

.export-btn {
    background: #4299e1;
    color: white;
}

.delete-btn {
    background: #e53e3e;
    color: white;
}

[data-theme="dark"] .data-btn {
    background: rgba(30, 41, 59, 0.8);
    border: 1px solid rgba(55, 65, 81, 0.3);
}

.data-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

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

.save-btn {
    background: var(--gradient);
    color: white;
    border: none;
    padding: 12px 20px;
    border-radius: 10px;
    cursor: pointer;
    font-weight: 500;
}

/* Add overlay */
.admin-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(5px);
    z-index: 1999;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

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

.confirmation-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 3000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.confirmation-content {
    background: white;
    border-radius: 25px;
    padding: 40px;
    max-width: 400px;
    width: 90%;
    text-align: center;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
    transform: scale(0.8) translateY(20px);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="dark"] .confirmation-content {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
}

.confirmation-icon {
    margin-bottom: 20px;
}

.confirmation-icon .icon {
    font-size: 4rem;
    display: inline-block;
    animation: bounceIn 0.6s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

@keyframes bounceIn {
    0% { transform: scale(0.3); opacity: 0; }
    50% { transform: scale(1.05); }
    70% { transform: scale(0.9); }
    100% { transform: scale(1); opacity: 1; }
}

.confirmation-title {
    color: var(--text-color);
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 15px;
}

.confirmation-message {
    color: var(--secondary-color);
    font-size: 1.1rem;
    line-height: 1.5;
    margin-bottom: 30px;
}

.confirmation-actions {
    display: flex;
    gap: 15px;
    justify-content: center;
}

.confirmation-btn {
    padding: 15px 30px;
    border: none;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    min-width: 120px;
}

.confirmation-btn.secondary {
    background: var(--bg-color);
    color: var(--text-color);
    border: 2px solid var(--border-color);
}

.confirmation-btn.secondary:hover {
    background: var(--border-color);
    transform: translateY(-2px);
}

.confirmation-btn.primary {
    background: linear-gradient(135deg, #f5576c 0%, #f093fb 100%);
    color: white;
    box-shadow: 0 4px 15px rgba(245, 87, 108, 0.3);
}

.confirmation-btn.primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(245, 87, 108, 0.4);
}

.admin-section label {
    display: flex;
    align-items: center;
    gap: calc(10px * var(--font-scale));
    padding: calc(14px * var(--font-scale)) calc(16px * var(--font-scale));
    margin: 8px 0;
    border-radius: 15px;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.8) 0%, rgba(255, 255, 255, 0.4) 100%);
    border: 1px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    font-weight: 500;
}

[data-theme="dark"] .admin-section label {
    background: rgba(30, 41, 59, 0.4);
    border: 1px solid rgba(55, 65, 81, 0.2);
}

.admin-section label:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
}

.admin-section label input[type="checkbox"] {
    appearance: none;
    width: calc(44px * var(--font-scale)) !important;
    height: calc(24px * var(--font-scale)) !important;
    background: linear-gradient(135deg, #e2e8f0 0%, #cbd5e0 100%);
    border-radius: 50px;
    position: relative;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.admin-section label input[type="checkbox"]:checked {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.admin-section label input[type="checkbox"]::before {
    content: '';
    position: absolute;
    width: calc(20px * var(--font-scale)) !important;
    height: calc(20px * var(--font-scale)) !important;
    background: white;
    border-radius: 50%;
    top: 2px;
    left: 2px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.admin-section label input[type="checkbox"]:checked::before {
    transform: translateX(calc(20px * var(--font-scale))) !important;
    box-shadow: 0 2px 12px rgba(102, 126, 234, 0.4);
}

.admin-section label span {
    color: var(--text-color);
    font-size: calc(0.95rem * var(--font-scale));
    transition: color 0.3s ease;
}

.admin-section label:hover span {
    color: var(--primary-color);
}

/* Special styling for notification toggle with icon */
.admin-section label:has([id="notificationsEnabled"]) {
    background: linear-gradient(135deg, rgba(102, 126, 246, 0.1) 0%, rgba(118, 75, 162, 0.05) 100%);
    border: 1px solid rgba(102, 126, 246, 0.2);
}

.admin-section label:has([id="notificationsEnabled"])::before {
    content: '🔔';
    font-size: 1.2rem;
    margin-right: 8px;
}

.admin-section label:has([id="soundEnabled"])::before {
    content: '🔊';
    font-size: 1.2rem;
    margin-right: 8px;
}

.admin-section label:has([id="animationsEnabled"])::before {
    content: '✨';
    font-size: 1.2rem;
    margin-right: 8px;
}

.admin-section label:has([id="vibrationEnabled"])::before {
    content: '📳';
    font-size: 1.2rem;
    margin-right: 8px;
}

/* Animation for smooth transitions */
.admin-section label {
    animation: slideInLeft 0.5s ease forwards;
}

.admin-section label:nth-child(1) { animation-delay: 0.1s; }
.admin-section label:nth-child(2) { animation-delay: 0.2s; }
.admin-section label:nth-child(3) { animation-delay: 0.3s; }
.admin-section label:nth-child(4) { animation-delay: 0.4s; }

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Custom slider styling */
input[type="range"] {
    -webkit-appearance: none;
    appearance: none;
    height: 6px;
    border-radius: 3px;
    background: var(--border-color);
    outline: none;
    cursor: pointer;
}

input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: calc(20px * var(--font-scale));
    height: calc(20px * var(--font-scale));
    border-radius: 50%;
    background: var(--gradient);
    cursor: pointer;
    box-shadow: 0 2px 8px rgba(102, 126, 234, 0.3);
}

input[type="range"]::-moz-range-thumb {
    width: calc(20px * var(--font-scale));
    height: calc(20px * var(--font-scale));
    border-radius: 50%;
    background: var(--gradient);
    cursor: pointer;
    border: none;
    box-shadow: 0 2px 8px rgba(102, 126, 234, 0.3);
}

/* Enhanced Modal Styles */
.enhanced-modal {
    background: var(--glass-bg) !important;
    backdrop-filter: blur(20px) !important;
    border: 1px solid var(--glass-border) !important;
    border-radius: 25px !important;
    padding: 0 !important;
    overflow: hidden !important;
    box-shadow: var(--shadow-heavy) !important;
    max-width: 480px !important;
    width: 90% !important;
    margin: 5% auto !important;
    animation: modalSlideIn 0.4s cubic-bezier(0.4, 0, 0.2, 1) !important;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-50px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.modal-header {
    background: var(--gradient);
    padding: 30px;
    color: white;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h3 {
    margin: 0;
    font-size: 1.4rem;
    font-weight: 700;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

.modal-header .close {
    color: white;
    font-size: 2rem;
    cursor: pointer;
    transition: transform 0.3s ease;
}

.modal-header .close:hover {
    transform: scale(1.2);
}

.enhanced-form {
    padding: 30px;
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-weight: 600;
    color: var(--text-color);
    font-size: 0.95rem;
}

.enhanced-form input,
.enhanced-form select,
.enhanced-form textarea {
    padding: 15px 18px;
    border: 2px solid var(--border-color);
    border-radius: 15px;
    font-family: inherit;
    font-size: 1rem;
    background: rgba(255, 255, 255, 0.8);
    transition: all 0.3s ease;
}

[data-theme="dark"] .enhanced-form input,
[data-theme="dark"] .enhanced-form select,
[data-theme="dark"] .enhanced-form textarea {
    background: rgba(30, 41, 59, 0.6);
    border-color: rgba(55, 65, 81, 0.5);
    color: var(--text-color);
}

.enhanced-form input:focus,
.enhanced-form select:focus,
.enhanced-form textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
    transform: translateY(-2px);
}

.enhanced-submit {
    background: var(--gradient);
    color: white;
    border: none;
    padding: 18px 30px;
    border-radius: 50px;
    font-size: 1.1rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    box-shadow: 0 4px 20px rgba(102, 126, 234, 0.3);
    margin-top: 20px;
}

.enhanced-submit:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(102, 126, 234, 0.4);
}

.enhanced-submit:active {
    transform: translateY(-1px);
}

/* Responsive improvements */
@media (max-width: 768px) {
    .enhanced-modal {
        width: 95% !important;
        margin: 10% auto !important;
    }
    
    .modal-header {
        padding: 20px;
    }
    
    .enhanced-form {
        padding: 20px;
    }
    
    .enhanced-submit {
        padding: 15px 25px;
        font-size: 1rem;
    }
}

/* Responsive text scaling improvements */
@media (max-width: 768px) {
    .main-content {
        grid-template-columns: 1fr;
        gap: calc(20px * var(--font-scale));
    }
    
    .app-title {
        font-size: calc(1.25rem * var(--font-scale));
        flex-direction: column;
        gap: calc(5px * var(--font-scale));
    }
    
    .title-icon {
        font-size: calc(2rem * var(--font-scale));
    }
    
    .admin-toggle {
        padding: calc(8px * var(--font-scale)) calc(16px * var(--font-scale));
        font-size: calc(0.85rem * var(--font-scale));
        gap: calc(4px * var(--font-scale));
    }
    
    .quick-add-btn {
        padding: calc(12px * var(--font-scale)) calc(24px * var(--font-scale));
        font-size: calc(0.9rem * var(--font-scale));
    }
    
    .plus-icon {
        width: calc(28px * var(--font-scale));
        height: calc(28px * var(--font-scale));
        font-size: calc(1.2rem * var(--font-scale));
    }
    
    .modal-content {
        width: 95%;
        margin: 5% auto;
        padding: calc(25px * var(--font-scale));
    }
    
    .admin-panel {
        width: 100%;
    }
    
    .admin-content {
        padding: calc(20px * var(--font-scale));
    }
    
    /* Ensure buttons scale appropriately */
    .admin-section label {
        padding: calc(14px * var(--font-scale)) calc(16px * var(--font-scale));
        font-size: calc(0.85rem * var(--font-scale));
        gap: calc(10px * var(--font-scale));
    }
    
    .admin-section label input[type="checkbox"] {
        width: calc(44px * var(--font-scale)) !important;
        height: calc(24px * var(--font-scale)) !important;
    }
    
    .admin-section label input[type="checkbox"]::before {
        width: calc(20px * var(--font-scale)) !important;
        height: calc(20px * var(--font-scale)) !important;
    }
    
    .admin-section label input[type="checkbox"]:checked::before {
        transform: translateX(calc(20px * var(--font-scale))) !important;
    }
    
    /* Scale form elements */
    input, textarea, select, button {
        padding: calc(12px * var(--font-scale));
        font-size: calc(0.9rem * var(--font-scale));
    }
    
    /* Scale calendar elements */
    .calendar-container, .reminders-panel {
        padding: calc(20px * var(--font-scale));
    }
    
    .day {
        font-size: calc(0.85rem * var(--font-scale));
    }
    
    .day-number {
        font-size: calc(1rem * var(--font-scale));
    }
    
    .category-indicators {
        bottom: calc(2px * var(--font-scale));
        gap: calc(2px * var(--font-scale));
    }
    
    .category-indicators span {
        width: calc(6px * var(--font-scale));
        height: calc(6px * var(--font-scale));
    }
}

/* Tablet improvements */
@media (max-width: 1024px) and (min-width: 769px) {
    .main-content {
        grid-template-columns: 1fr;
        gap: calc(20px * var(--font-scale));
    }
    
    .app-header {
        flex-direction: column;
        gap: calc(15px * var(--font-scale));
        text-align: center;
    }
}    

/* Ensure touch targets remain accessible */
@media (max-width: 768px) {
    .action-btn,
    .data-btn,
    .submit-btn {
        min-height: 44px;
    }
    
    .theme-preview {
        width: calc(50px * var(--font-scale));
        height: calc(50px * var(--font-scale));
    }
    
    .theme-option span {
        font-size: calc(0.8rem * var(--font-scale));
    }
}