/**
 * Academia Schedule — Premium Styles
 * MIA Wizard + Day Cards with 3D flip + Schedule Dashboard
 * 
 * Design tokens: Uses academia-design-system.css variables exclusively
 * Theme parity: Dark/Light mode support throughout
 */

/* ========================================
   WIZARD OVERLAY
   ======================================== */

.schedule-wizard-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
}

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

.wizard-container {
    width: 100%;
    max-width: 540px;
    max-height: 90vh;
    margin: var(--space-md);
    background: var(--color-surface);
    border: 1px solid var(--color-glass-border);
    border-radius: var(--radius-xl);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    box-shadow: 0 24px 80px rgba(0, 0, 0, 0.4), 0 0 60px var(--color-primary-glow);
    animation: wizardEnter 0.5s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}

@keyframes wizardEnter {
    from {
        opacity: 0;
        transform: scale(0.9) translateY(30px);
    }

    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

[data-theme="light"] .wizard-container {
    background: #FAFCFB;
    box-shadow: 0 24px 80px rgba(0, 0, 0, 0.15), 0 0 40px rgba(45, 184, 76, 0.1);
}

/* ── Wizard Header ─────────────────────── */

.wizard-header {
    padding: var(--space-lg) var(--space-lg) var(--space-md);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.wizard-step-indicator {
    display: flex;
    gap: 8px;
    align-items: center;
}

.wizard-step-dot {
    width: 8px;
    height: 8px;
    border-radius: var(--radius-full);
    background: var(--color-glass-border);
    transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.wizard-step-dot.active {
    width: 28px;
    background: var(--color-primary);
    box-shadow: 0 0 12px var(--color-primary-glow);
}

.wizard-step-dot.completed {
    background: var(--color-primary);
}

.wizard-close-btn {
    position: absolute;
    top: var(--space-md);
    left: var(--space-md);
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    background: var(--color-glass);
    border: 1px solid var(--color-glass-border);
    color: var(--color-text-muted);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-base);
    font-size: 1.1rem;
}

[dir="ltr"] .wizard-close-btn {
    left: auto;
    right: var(--space-md);
}

.wizard-close-btn:hover {
    background: var(--color-error);
    border-color: var(--color-error);
    color: white;
    transform: rotate(90deg);
}

/* ── Wizard Body ───────────────────────── */

.wizard-body {
    flex: 1;
    padding: var(--space-lg) var(--space-xl) var(--space-lg);
    overflow-y: auto;
    min-height: 360px;
}

.wizard-step {
    display: none;
    text-align: center;
    animation: stepFadeIn 0.4s ease forwards;
}

.wizard-step.active {
    display: block;
}

@keyframes stepFadeIn {
    from {
        opacity: 0;
        transform: translateY(16px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* MIA Avatar in wizard */
.wizard-mia-avatar {
    width: 140px;
    height: 140px;
    border-radius: var(--radius-full);
    margin: 0 auto var(--space-lg);
    overflow: hidden;
    box-shadow: 0 12px 50px var(--color-primary-glow);
    animation: miaPulseWizard 3s ease-in-out infinite;
}

@keyframes miaPulseWizard {

    0%,
    100% {
        box-shadow: 0 12px 50px var(--color-primary-glow);
    }

    50% {
        box-shadow: 0 16px 70px var(--color-primary-glow), 0 0 30px var(--color-primary-glow);
    }
}

.wizard-mia-avatar video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.wizard-step-icon {
    width: 64px;
    height: 64px;
    border-radius: var(--radius-full);
    background: linear-gradient(135deg, var(--color-primary-glow), rgba(45, 184, 76, 0.1));
    border: 1px solid rgba(45, 184, 76, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-md);
    font-size: 1.6rem;
    color: var(--color-primary);
}

.wizard-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--space-xs);
}

.wizard-subtitle {
    color: var(--color-text-muted);
    font-size: 0.95rem;
    margin-bottom: var(--space-lg);
}

/* ── Wizard Input ──────────────────────── */

.wizard-input-group {
    max-width: 360px;
    margin: 0 auto;
}

.wizard-input {
    width: 100%;
    padding: var(--space-md) var(--space-lg);
    font-size: 1rem;
    font-family: var(--font-family-primary);
    border: 1px solid var(--color-glass-border);
    border-radius: var(--radius-md);
    background: var(--color-glass);
    color: var(--color-text);
    text-align: center;
    transition: all var(--transition-base);
}

.wizard-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 4px var(--color-primary-glow);
}

.wizard-input::placeholder {
    color: var(--color-text-dim);
}

/* ── Select All Row ────────────────────── */

.wizard-select-all-row {
    display: flex;
    justify-content: flex-end;
    margin-bottom: var(--space-md);
}

.wizard-select-all-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    font-size: 0.85rem;
    font-family: var(--font-family-primary);
    background: var(--color-glass);
    border: 1px solid var(--color-glass-border);
    border-radius: var(--radius-full);
    color: var(--color-text-muted);
    cursor: pointer;
    transition: all var(--transition-base);
}

.wizard-select-all-btn:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

/* ── Chips Grid (subjects) ─────────────── */

.wizard-chips-grid {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
    justify-content: center;
}

.wizard-chip {
    padding: 10px 20px;
    background: var(--color-glass);
    border: 1px solid var(--color-glass-border);
    border-radius: var(--radius-full);
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
    display: inline-flex;
    align-items: center;
    gap: 8px;
    user-select: none;
}

.wizard-chip:hover {
    border-color: var(--color-primary);
    transform: scale(1.05);
    box-shadow: 0 4px 16px var(--color-primary-glow);
}

.wizard-chip.selected {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: white;
    box-shadow: 0 4px 20px var(--color-primary-glow);
}

.wizard-chip i {
    font-size: 1.2rem;
}

/* ── Option Cards (source, style) ──────── */

.wizard-option-cards {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-md);
    max-width: 440px;
    margin: 0 auto;
}

.wizard-option-card {
    padding: var(--space-xl) var(--space-lg);
    background: var(--color-glass);
    border: 2px solid var(--color-glass-border);
    border-radius: var(--radius-lg);
    text-align: center;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
    position: relative;
    overflow: hidden;
}

.wizard-option-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, var(--color-primary-glow), transparent);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.wizard-option-card:hover {
    border-color: var(--color-primary);
    transform: translateY(-4px);
    box-shadow: 0 8px 30px var(--color-primary-glow);
}

.wizard-option-card:hover::before {
    opacity: 1;
}

.wizard-option-card.selected {
    border-color: var(--color-primary);
    background: var(--color-primary-glow);
    box-shadow: 0 0 30px var(--color-primary-glow);
}

.wizard-option-card.selected::before {
    opacity: 1;
}

.option-card-icon {
    position: relative;
    z-index: 1;
    font-size: 2.2rem;
    color: var(--color-primary);
    margin-bottom: var(--space-md);
}

.wizard-option-card h4 {
    position: relative;
    z-index: 1;
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: var(--space-xs);
}

.wizard-option-card p {
    position: relative;
    z-index: 1;
    font-size: 0.8rem;
    color: var(--color-text-muted);
    margin: 0;
}

/* ── Course Selection List ─────────────── */

.wizard-courses-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    max-height: 320px;
    overflow-y: auto;
    padding-right: var(--space-xs);
}

.wizard-course-item {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md);
    background: var(--color-glass);
    border: 1px solid var(--color-glass-border);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.25s ease;
}

.wizard-course-item:hover {
    border-color: var(--color-primary);
    background: var(--color-glass-hover);
}

.wizard-course-item.selected {
    border-color: var(--color-primary);
    background: var(--color-primary-glow);
}

.wizard-course-item.not-owned {
    opacity: 0.85;
}

.wizard-course-item.not-owned::after {
    content: '🔒';
    font-size: 0.8rem;
    margin-inline-start: auto;
}

.wizard-course-thumb {
    width: 50px;
    height: 50px;
    border-radius: var(--radius-sm);
    object-fit: cover;
    flex-shrink: 0;
}

.wizard-course-info {
    flex: 1;
    min-width: 0;
    text-align: start;
}

.wizard-course-info h5 {
    font-size: 0.9rem;
    font-weight: 600;
    margin: 0 0 2px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.wizard-course-info span {
    font-size: 0.75rem;
    color: var(--color-text-muted);
}

.wizard-course-check {
    width: 24px;
    height: 24px;
    border-radius: var(--radius-full);
    border: 2px solid var(--color-glass-border);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: all var(--transition-base);
    font-size: 0.8rem;
    color: transparent;
}

.wizard-course-item.selected .wizard-course-check {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: white;
}

/* ── Time Period Cards ─────────────────── */

.wizard-time-options {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-md);
    max-width: 480px;
    margin: 0 auto;
}

.wizard-time-card {
    padding: var(--space-lg) var(--space-md);
    background: var(--color-glass);
    border: 2px solid var(--color-glass-border);
    border-radius: var(--radius-lg);
    text-align: center;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.wizard-time-card:hover {
    border-color: var(--color-primary);
    transform: translateY(-4px);
    box-shadow: 0 8px 24px var(--color-primary-glow);
}

.wizard-time-card.selected {
    border-color: var(--color-primary);
    background: var(--color-primary-glow);
    box-shadow: 0 0 30px var(--color-primary-glow);
}

.time-card-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1;
    margin-bottom: var(--space-xs);
}

.time-card-number i {
    font-size: 2rem;
}

.time-card-label {
    font-size: 0.8rem;
    color: var(--color-text-muted);
}

.time-card-desc {
    font-size: 0.7rem;
    color: var(--color-text-dim);
    margin-top: var(--space-xs);
}

/* Custom date range */
.wizard-custom-range {
    margin-top: var(--space-lg);
    animation: stepFadeIn 0.3s ease;
}

.custom-range-row {
    display: flex;
    gap: var(--space-md);
    max-width: 360px;
    margin: 0 auto;
}

.custom-range-field {
    flex: 1;
}

.custom-range-field label {
    display: block;
    font-size: 0.85rem;
    color: var(--color-text-muted);
    margin-bottom: var(--space-sm);
}

.custom-range-field input[type="date"] {
    text-align: start;
}

/* ── Wizard Footer ─────────────────────── */

.wizard-footer {
    padding: var(--space-md) var(--space-xl) var(--space-lg);
    display: flex;
    gap: var(--space-md);
    justify-content: space-between;
}

.wizard-btn-prev,
.wizard-btn-next {
    min-width: 140px;
}

.wizard-btn-next {
    margin-inline-start: auto;
}

/* ========================================
   PLANNING ANIMATION OVERLAY
   ======================================== */

.planning-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.9);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    z-index: 2100;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
}

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

.planning-content {
    text-align: center;
}

.planning-mia {
    width: 180px;
    height: 180px;
    border-radius: var(--radius-full);
    margin: 0 auto var(--space-xl);
    overflow: hidden;
    box-shadow: 0 16px 80px var(--color-primary-glow);
    animation: miaPulseWizard 2s ease-in-out infinite;
}

.planning-mia video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.planning-title {
    font-size: 1.4rem;
    margin-bottom: var(--space-lg);
}

.planning-dots {
    display: flex;
    gap: 8px;
    justify-content: center;
}

.planning-dots span {
    width: 10px;
    height: 10px;
    border-radius: var(--radius-full);
    background: var(--color-primary);
    animation: planningDot 1.4s ease-in-out infinite;
}

.planning-dots span:nth-child(2) {
    animation-delay: 0.2s;
}

.planning-dots span:nth-child(3) {
    animation-delay: 0.4s;
}

@keyframes planningDot {

    0%,
    80%,
    100% {
        opacity: 0.3;
        transform: scale(0.8);
    }

    40% {
        opacity: 1;
        transform: scale(1.2);
    }
}

/* ========================================
   SCHEDULE DASHBOARD
   ======================================== */

.schedule-dashboard {
    padding: var(--space-lg) 0;
}

/* ── Schedule Tabs ─────────────────────── */

.schedule-tabs {
    display: flex;
    gap: var(--space-sm);
    margin-bottom: var(--space-lg);
    overflow-x: auto;
    padding-bottom: var(--space-sm);
    scrollbar-width: none;
}

.schedule-tabs::-webkit-scrollbar {
    display: none;
}

.schedule-tab {
    padding: 10px 20px;
    background: var(--color-glass);
    border: 1px solid var(--color-glass-border);
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-family: var(--font-family-primary);
    color: var(--color-text-muted);
    cursor: pointer;
    transition: all var(--transition-base);
    white-space: nowrap;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

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

.schedule-tab.active {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: white;
    box-shadow: 0 4px 16px var(--color-primary-glow);
}

.schedule-tab .tab-delete {
    width: 18px;
    height: 18px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.7rem;
    opacity: 0;
    transition: opacity var(--transition-fast);
    background: rgba(255, 255, 255, 0.2);
}

.schedule-tab:hover .tab-delete {
    opacity: 1;
}

/* ── Schedule Header Card ──────────────── */

.schedule-header-card {
    background: var(--color-glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--color-glass-border);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
    margin-bottom: var(--space-xl);
    display: flex;
    align-items: center;
    gap: var(--space-xl);
    position: relative;
    overflow: hidden;
}

.schedule-header-card::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, var(--color-primary-glow) 0%, transparent 70%);
    opacity: 0.15;
    pointer-events: none;
}

[data-theme="light"] .schedule-header-card {
    background: rgba(255, 255, 255, 0.85);
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.06);
}

.schedule-header-info {
    flex: 1;
}

.schedule-header-info h2 {
    font-size: 1.4rem;
    margin-bottom: var(--space-xs);
}

.schedule-header-meta {
    display: flex;
    gap: var(--space-lg);
    flex-wrap: wrap;
    margin-top: var(--space-sm);
}

.schedule-meta-item {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

.schedule-meta-item i {
    color: var(--color-primary);
    font-size: 1rem;
}

.schedule-header-progress {
    position: relative;
    flex-shrink: 0;
}

.schedule-header-progress .progress-ring {
    width: 90px;
    height: 90px;
}

.schedule-header-actions {
    display: flex;
    gap: var(--space-sm);
    flex-shrink: 0;
    align-self: flex-start;
}



.schedule-header-actions button {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    background: var(--color-glass);
    border: 1px solid var(--color-glass-border);
    color: var(--color-text-muted);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-base);
    font-size: 1rem;
}

.schedule-header-actions button:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.schedule-header-actions button.delete-btn:hover {
    border-color: var(--color-error);
    color: var(--color-error);
}

/* ========================================
   DAY CARDS — 3D FLIP EFFECT
   ======================================== */

.day-cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--space-lg);
}

/* Card wrapper — sets perspective for 3D flip */
.day-card-wrapper {
    perspective: 1000px;
    height: 220px;
}

/* ── Today's Card — Blue glow + breathing border ── */
.day-card-wrapper.is-today .day-card-front,
.day-card-wrapper.is-today .day-card-back {
    border-color: rgba(74, 144, 217, 0.5);
    box-shadow: 0 0 20px rgba(74, 144, 217, 0.15), 0 4px 24px rgba(0, 0, 0, 0.1);
    animation: todayCardGlow 3s ease-in-out infinite;
}

.day-card-wrapper.is-today .day-card-front::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #4A90D9, #60B5F6, #4A90D9);
    background-size: 200% 100%;
    animation: todayStripe 3s linear infinite;
    border-radius: var(--radius-xl) var(--radius-xl) 0 0;
    z-index: 2;
}

.day-card-wrapper.is-today .day-number {
    color: #4A90D9;
}

@keyframes todayCardGlow {

    0%,
    100% {
        box-shadow: 0 0 16px rgba(74, 144, 217, 0.1), 0 4px 20px rgba(0, 0, 0, 0.08);
    }

    50% {
        box-shadow: 0 0 28px rgba(74, 144, 217, 0.25), 0 6px 28px rgba(0, 0, 0, 0.1);
    }
}

@keyframes todayStripe {
    0% {
        background-position: 200% 0;
    }

    100% {
        background-position: -200% 0;
    }
}

[data-theme="light"] .day-card-wrapper.is-today .day-card-front,
[data-theme="light"] .day-card-wrapper.is-today .day-card-back {
    border-color: rgba(74, 144, 217, 0.35);
    box-shadow: 0 0 20px rgba(74, 144, 217, 0.1), 0 4px 24px rgba(0, 0, 0, 0.05);
}

/* ── Completed Card — Green tint + gradient overlay + checkmark ── */
.day-card-wrapper.is-completed .day-card-front,
.day-card-wrapper.is-completed .day-card-back {
    border-color: rgba(45, 184, 76, 0.45);
    background: linear-gradient(145deg,
            rgba(45, 184, 76, 0.08) 0%,
            var(--color-glass) 100%);
}

.day-card-wrapper.is-completed .day-card-front::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--color-primary), #25A043);
    border-radius: var(--radius-xl) var(--radius-xl) 0 0;
    z-index: 2;
}

.day-card-wrapper.is-completed .day-card-front::after {
    content: '\2713';
    position: absolute;
    top: var(--space-md);
    left: var(--space-md);
    width: 30px;
    height: 30px;
    border-radius: var(--radius-full);
    background: linear-gradient(135deg, var(--color-primary) 0%, #25A043 100%);
    color: white;
    font-size: 0.9rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 3;
    box-shadow: 0 4px 16px var(--color-primary-glow);
    animation: completedCheckPop 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes completedCheckPop {
    0% {
        transform: scale(0);
        opacity: 0;
    }

    60% {
        transform: scale(1.2);
    }

    100% {
        transform: scale(1);
        opacity: 1;
    }
}

[dir="ltr"] .day-card-wrapper.is-completed .day-card-front::after {
    left: auto;
    right: var(--space-md);
}

.day-card-wrapper.is-completed .day-number {
    color: var(--color-primary);
}

.day-card-wrapper.is-completed .day-courses-preview {
    opacity: 0.6;
}

.day-card-wrapper.is-completed .day-progress-mini .progress-fill {
    background: var(--color-primary);
}

[data-theme="light"] .day-card-wrapper.is-completed .day-card-front,
[data-theme="light"] .day-card-wrapper.is-completed .day-card-back {
    border-color: rgba(45, 184, 76, 0.35);
    background: linear-gradient(145deg,
            rgba(45, 184, 76, 0.06) 0%,
            rgba(255, 255, 255, 0.85) 100%);
}

/* ── Overdue Card — Warm amber border ── */
.day-card-wrapper.is-overdue .day-card-front,
.day-card-wrapper.is-overdue .day-card-back {
    border-color: rgba(245, 166, 35, 0.35);
}

.day-card-wrapper.is-overdue .day-card-front::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #F5A623, #F97316);
    border-radius: var(--radius-xl) var(--radius-xl) 0 0;
    z-index: 2;
}

.day-card-wrapper.is-overdue .day-number {
    color: #F5A623;
}

.day-card-flipper {
    position: relative;
    width: 100%;
    height: 100%;
    transition: transform 0.7s cubic-bezier(0.34, 1.56, 0.64, 1);
    transform-style: preserve-3d;
}

/* Desktop: hover to flip */
@media (hover: hover) {
    .day-card-wrapper:hover .day-card-flipper {
        transform: rotateY(180deg);
    }
}

/* RTL: flip the other direction */
[dir="rtl"] .day-card-wrapper:hover .day-card-flipper,
[dir="rtl"] .day-card-flipper.flipped {
    transform: rotateY(-180deg);
}

/* Mobile: click to flip (controlled by JS) */
.day-card-flipper.flipped {
    transform: rotateY(180deg);
}

/* Common face styles */
.day-card-front,
.day-card-back {
    position: absolute;
    inset: 0;
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
    border-radius: var(--radius-xl);
    border: 1px solid var(--color-glass-border);
    background: var(--color-glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    overflow: hidden;
    transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

[data-theme="light"] .day-card-front,
[data-theme="light"] .day-card-back {
    background: rgba(255, 255, 255, 0.85);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
}

/* ── Front Face ────────────────────────── */

.day-card-front {
    padding: var(--space-lg);
    display: flex;
    flex-direction: column;
}

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

.day-number {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1;
}

.day-date {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    background: var(--color-glass);
    padding: 4px 12px;
    border-radius: var(--radius-full);
    border: 1px solid var(--color-glass-border);
}

.day-courses-preview {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.day-course-row {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 0.8rem;
    color: var(--color-text-muted);
}

.day-course-row i {
    font-size: 1rem;
    width: 20px;
    text-align: center;
}

.day-course-row .lesson-count {
    margin-inline-start: auto;
    font-size: 0.7rem;
    background: var(--color-glass);
    padding: 2px 8px;
    border-radius: var(--radius-full);
}

.day-rest-label {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    color: var(--color-text-dim);
    font-size: 0.9rem;
    flex: 1;
}

.day-rest-label i {
    font-size: 1.4rem;
    color: var(--color-warning, #F5A623);
}

.day-card-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: auto;
    padding-top: var(--space-md);
    border-top: 1px solid var(--color-glass-border);
}

.day-progress-mini {
    flex: 1;
    margin-inline-end: var(--space-md);
}

.day-progress-mini .progress-bar {
    height: 4px;
    margin-bottom: 4px;
}

.day-progress-mini .progress-fill {
    height: 100%;
    background: var(--color-primary);
    border-radius: 3px;
    transition: width 0.5s ease;
}

.day-progress-label {
    font-size: 0.7rem;
    color: var(--color-text-dim);
}

.day-status-badge {
    font-size: 0.7rem;
    padding: 4px 10px;
    border-radius: var(--radius-full);
    font-weight: 600;
    white-space: nowrap;
}

.day-status-badge.completed {
    background: rgba(45, 184, 76, 0.15);
    color: var(--color-primary);
}

.day-status-badge.today {
    background: rgba(74, 144, 217, 0.15);
    color: var(--color-accent-blue);
    animation: todayPulse 2s ease-in-out infinite;
}

.day-status-badge.overdue {
    background: rgba(245, 166, 35, 0.15);
    color: var(--color-accent-gold);
}

@keyframes todayPulse {

    0%,
    100% {
        box-shadow: 0 0 0 0 rgba(74, 144, 217, 0.3);
    }

    50% {
        box-shadow: 0 0 12px 4px rgba(74, 144, 217, 0.15);
    }
}

/* Flip hint icon */
.day-card-flip-hint {
    position: absolute;
    bottom: var(--space-md);
    left: var(--space-md);
    font-size: 0.7rem;
    color: var(--color-text-dim);
    display: flex;
    align-items: center;
    gap: 4px;
    opacity: 0.6;
}

[dir="ltr"] .day-card-flip-hint {
    left: auto;
    right: var(--space-md);
}

/* ── Back Face (Lessons Detail) ────────── */

.day-card-back {
    transform: rotateY(180deg);
    padding: var(--space-md);
    display: flex;
    flex-direction: column;
}

[dir="rtl"] .day-card-back {
    transform: rotateY(-180deg);
}

.day-back-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-sm);
    padding-bottom: var(--space-sm);
    border-bottom: 1px solid var(--color-glass-border);
}

.day-back-header h4 {
    font-size: 0.95rem;
    margin: 0;
}

.day-back-header button {
    background: none;
    border: none;
    color: var(--color-text-muted);
    cursor: pointer;
    font-size: 1.1rem;
    padding: 4px;
    transition: color var(--transition-fast);
}

.day-back-header button:hover {
    color: var(--color-primary);
}

.day-lessons-list {
    flex: 1;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 4px;
    scrollbar-width: thin;
}

.day-lesson-item {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: 6px 8px;
    border-radius: var(--radius-sm);
    transition: background var(--transition-fast);
    font-size: 0.8rem;
}

.day-lesson-item:hover {
    background: var(--color-glass-hover);
}

.lesson-checkbox {
    width: 20px;
    height: 20px;
    border-radius: 6px;
    border: 2px solid var(--color-glass-border);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
    flex-shrink: 0;
    font-size: 0.7rem;
    color: transparent;
}

.lesson-checkbox.checked {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: white;
    animation: checkPop 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes checkPop {
    0% {
        transform: scale(0.8);
    }

    50% {
        transform: scale(1.3);
    }

    100% {
        transform: scale(1);
    }
}

.lesson-name {
    flex: 1;
    min-width: 0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.lesson-name.completed-text {
    text-decoration: line-through;
    opacity: 0.5;
}

.lesson-duration {
    font-size: 0.7rem;
    color: var(--color-text-dim);
    white-space: nowrap;
}

.lesson-play-btn {
    width: 24px;
    height: 24px;
    border-radius: var(--radius-full);
    background: var(--color-glass);
    border: 1px solid var(--color-glass-border);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-base);
    font-size: 0.7rem;
    color: var(--color-text-muted);
    flex-shrink: 0;
}

.lesson-play-btn:hover {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: white;
}

/* Day back footer */
.day-back-actions {
    display: flex;
    gap: var(--space-sm);
    margin-top: var(--space-sm);
    padding-top: var(--space-sm);
    border-top: 1px solid var(--color-glass-border);
}

.day-back-actions button {
    flex: 1;
    padding: 8px;
    font-size: 0.75rem;
    font-family: var(--font-family-primary);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-base);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
}

.btn-mark-day {
    background: linear-gradient(135deg, var(--color-primary) 0%, #25A043 100%);
    color: white;
    border: none;
    box-shadow: 0 4px 12px var(--color-primary-glow);
}

.btn-mark-day:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 20px var(--color-primary-glow);
}

.btn-playlist {
    background: var(--color-glass);
    border: 1px solid var(--color-glass-border);
    color: var(--color-text);
}

.btn-playlist:hover {
    border-color: var(--color-accent-blue);
    color: var(--color-accent-blue);
}

/* ── Undo Button ───────────────────────── */

.btn-undo-day {
    background: var(--color-glass);
    border: 1px solid rgba(245, 166, 35, 0.4);
    color: var(--color-accent-gold, #F5A623);
}

.btn-undo-day:hover {
    background: rgba(245, 166, 35, 0.15);
    border-color: rgba(245, 166, 35, 0.6);
}

/* ── Error / Destructive Button ────────── */

.btn-error {
    background: linear-gradient(135deg, #E74C3C 0%, #C0392B 100%);
    color: white;
    border: none;
    box-shadow: 0 4px 16px rgba(231, 76, 60, 0.3);
    transition: all var(--transition-base);
}

.btn-error:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 24px rgba(231, 76, 60, 0.4);
}

/* ========================================
   EMPTY STATE
   ======================================== */

.schedule-empty {
    text-align: center;
    padding: var(--space-3xl) var(--space-xl);
}

.empty-mia-container {
    width: 160px;
    height: 160px;
    border-radius: var(--radius-full);
    margin: 0 auto var(--space-xl);
    overflow: hidden;
    box-shadow: 0 12px 60px var(--color-primary-glow);
    animation: miaPulseWizard 3s ease-in-out infinite;
}

.empty-mia-video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.schedule-empty h2 {
    font-size: 1.5rem;
    margin-bottom: var(--space-sm);
}

.schedule-empty p {
    color: var(--color-text-muted);
    font-size: 1rem;
    margin-bottom: var(--space-xl);
}

.btn-create-schedule {
    padding: var(--space-md) var(--space-2xl);
    font-size: 1.05rem;
}

/* ========================================
   COMPLETION MODALS
   ======================================== */

.completion-modal {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    z-index: 2200;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
}

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

.completion-modal-card {
    width: 100%;
    max-width: 420px;
    margin: var(--space-md);
    background: var(--color-surface);
    border: 1px solid var(--color-glass-border);
    border-radius: var(--radius-xl);
    padding: var(--space-2xl) var(--space-xl);
    text-align: center;
    position: relative;
    animation: wizardEnter 0.5s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}

[data-theme="light"] .completion-modal-card {
    background: #FAFCFB;
}

.completion-close {
    position: absolute;
    top: var(--space-md);
    left: var(--space-md);
    width: 32px;
    height: 32px;
    border-radius: var(--radius-full);
    background: var(--color-glass);
    border: 1px solid var(--color-glass-border);
    color: var(--color-text-muted);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-base);
    font-size: 1rem;
}

[dir="ltr"] .completion-close {
    left: auto;
    right: var(--space-md);
}

.completion-close:hover {
    background: var(--color-error);
    border-color: var(--color-error);
    color: white;
}

.completion-mia {
    width: 120px;
    height: 120px;
    border-radius: var(--radius-full);
    margin: 0 auto var(--space-lg);
    overflow: hidden;
    box-shadow: 0 12px 50px var(--color-primary-glow);
}

.completion-mia video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.completion-modal-card h2 {
    font-size: 1.5rem;
    margin-bottom: var(--space-sm);
}

.completion-phrase {
    color: var(--color-text-muted);
    font-size: 1rem;
    margin-bottom: var(--space-xl);
    font-style: italic;
}

/* ── Celebration Stats ─────────────────── */

.celebration-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-md);
    margin: var(--space-lg) 0;
    padding: var(--space-lg);
    background: var(--color-glass);
    border: 1px solid var(--color-glass-border);
    border-radius: var(--radius-lg);
}

.stat-item {
    text-align: center;
}

.stat-item .stat-value {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1;
    margin-bottom: 4px;
}

.stat-item .stat-label {
    font-size: 0.7rem;
    color: var(--color-text-muted);
}

/* ── Confetti ──────────────────────────── */

.confetti-container {
    position: absolute;
    inset: 0;
    overflow: hidden;
    pointer-events: none;
    z-index: 0;
}

.confetti-piece {
    position: absolute;
    width: 10px;
    height: 10px;
    border-radius: 2px;
    top: -20px;
    animation: confettiFall linear forwards;
}

@keyframes confettiFall {
    to {
        top: 110%;
        transform: rotate(720deg);
    }
}

/* ── Purchase Prompt ───────────────────── */

.purchase-courses-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    margin: var(--space-lg) 0;
    max-height: 200px;
    overflow-y: auto;
}

.purchase-course-item {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-sm) var(--space-md);
    background: var(--color-glass);
    border-radius: var(--radius-md);
}

.purchase-course-item img {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
    object-fit: cover;
}

.purchase-course-item span {
    flex: 1;
    font-size: 0.85rem;
    text-align: start;
}

/* ========================================
   FLOATING ACTION BUTTON (CREATE)
   ======================================== */

.schedule-fab {
    position: fixed;
    bottom: 120px;
    left: var(--space-xl);
    width: 56px;
    height: 56px;
    border-radius: var(--radius-full);
    background: linear-gradient(135deg, var(--color-primary) 0%, #25A043 100%);
    border: none;
    color: white;
    font-size: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 8px 30px var(--color-primary-glow);
    transition: all var(--transition-base);
    z-index: 90;
}

[dir="ltr"] .schedule-fab {
    left: auto;
    right: var(--space-xl);
}

.schedule-fab:hover {
    transform: translateY(-3px) rotate(90deg);
    box-shadow: 0 12px 40px var(--color-primary-glow);
}

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

@media (max-width: 768px) {
    .wizard-container {
        max-width: 100%;
        margin: var(--space-sm);
        max-height: 95vh;
        border-radius: var(--radius-lg);
    }

    .wizard-body {
        padding: 0 var(--space-md) var(--space-md);
        min-height: 300px;
    }

    .wizard-title {
        font-size: 1.25rem;
    }

    .wizard-option-cards {
        grid-template-columns: 1fr;
    }

    .wizard-time-options {
        grid-template-columns: repeat(2, 1fr);
    }

    .day-cards-grid {
        grid-template-columns: 1fr;
    }

    .day-card-wrapper {
        height: 200px;
    }

    .schedule-header-card {
        flex-direction: column;
        text-align: center;
        padding: var(--space-lg);
    }

    .schedule-header-meta {
        justify-content: center;
    }

    .celebration-stats {
        grid-template-columns: repeat(3, 1fr);
    }

    .wizard-mia-avatar {
        width: 110px;
        height: 110px;
    }

    .schedule-fab {
        bottom: 100px;
        left: var(--space-md);
    }

    [dir="ltr"] .schedule-fab {
        left: auto;
        right: var(--space-md);
    }
}

@media (max-width: 480px) {
    .wizard-time-options {
        grid-template-columns: repeat(2, 1fr);
    }

    .day-card-wrapper {
        height: 190px;
    }

    .schedule-header-card {
        gap: var(--space-md);
    }

    .custom-range-row {
        flex-direction: column;
    }

    .wizard-footer {
        padding: var(--space-md);
        flex-direction: column-reverse;
    }

    .wizard-btn-prev,
    .wizard-btn-next {
        width: 100%;
    }
}

/* ── Validation Shake ──────────────────── */
@keyframes shakeError {

    0%,
    100% {
        transform: translateX(0);
    }

    20% {
        transform: translateX(-8px);
    }

    40% {
        transform: translateX(8px);
    }

    60% {
        transform: translateX(-6px);
    }

    80% {
        transform: translateX(6px);
    }
}