/* ============================================
   Drama Streaming Page - Responsive Styles
   ============================================ */

/* ===== Variables ===== */
:root {
    --primary: #FF6B35;
    --primary-light: #FF8C42;
    --secondary: #FFD93D;
    --accent: #4ECDC4;
    --dark: #0A0E1A;
    --dark-2: #131725;
    --dark-3: #1C2138;
    --gray: #8892B0;
    --gray-light: #A0A8C0;
    --white: #FFFFFF;
    --bg-card: #161B2E;
    --gradient-primary: linear-gradient(135deg, #FF6B35, #FFD93D);
    --gradient-dark: linear-gradient(160deg, #0A0E1A, #131725);
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.2);
    --shadow-md: 0 8px 24px rgba(0,0,0,0.25);
    --shadow-lg: 0 20px 60px rgba(0,0,0,0.35);
    --radius: 12px;
    --radius-lg: 20px;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Noto Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--dark);
    color: var(--white);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

a { text-decoration: none; }
ul { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; }

/* ============================================
   Top: Drama Info Section
   ============================================ */
.drama-header {
    position: relative;
    background: var(--gradient-dark);
    padding: 40px 0;
    overflow: hidden;
}

.header-overlay {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse at 20% 50%, rgba(255, 107, 53, 0.12), transparent 50%),
        radial-gradient(ellipse at 80% 30%, rgba(78, 205, 196, 0.06), transparent 50%);
    pointer-events: none;
}

.header-container {
    position: relative;
    z-index: 1;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 40px;
    align-items: start;
}

/* Cover Image */
.cover-wrap {
    position: relative;
}

.cover-image {
    width: 280px;
    height: 380px;
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: linear-gradient(135deg, #1C2138, #2A3050);
    box-shadow: var(--shadow-lg);
    position: relative;
    border: 1px solid rgba(255, 255, 255, 0.08);
    transition: transform var(--transition);
}

.cover-image:hover {
    transform: scale(1.02);
}

.cover-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.cover-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #1a1f35, #252b48);
}

.cover-glow {
    position: absolute;
    top: -20px;
    left: -20px;
    right: -20px;
    bottom: -20px;
    background: var(--gradient-primary);
    border-radius: var(--radius-lg);
    opacity: 0.15;
    filter: blur(30px);
    z-index: -1;
}

/* Drama Info */
.drama-info {
    padding-top: 8px;
}

.drama-tags {
    display: flex;
    gap: 8px;
    margin-bottom: 16px;
    flex-wrap: wrap;
}

.tag, .tag-tag {
    padding: 5px 14px;
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 500;
}

.tag {
    background: rgba(255, 107, 53, 0.15);
    color: var(--primary-light);
    border: 1px solid rgba(255, 107, 53, 0.3);
}

.tag-tag {
    background: rgba(78, 205, 196, 0.12);
    color: var(--accent);
    border: 1px solid rgba(78, 205, 196, 0.3);
}

.drama-title {
    font-size: 2.4rem;
    font-weight: 900;
    color: var(--white);
    line-height: 1.2;
    margin-bottom: 16px;
    letter-spacing: -0.5px;
}

.drama-meta {
    display: flex;
    gap: 20px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.meta-item {
    display: flex;
    align-items: center;
    gap: 6px;
    color: var(--gray-light);
    font-size: 0.95rem;
}

.meta-item svg {
    color: var(--primary-light);
}

.drama-desc {
    color: rgba(255, 255, 255, 0.7);
    font-size: 1rem;
    line-height: 1.8;
    max-width: 700px;
    display: -webkit-box;
    -webkit-line-clamp: 4;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* ============================================
   Middle: Player + Episode Selection
   ============================================ */
.player-section {
    flex: 1;
    background: var(--dark);
    padding: 32px 0;
}

.player-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: grid;
    grid-template-columns: 1fr 340px;
    gap: 24px;
    align-items: start;
}

/* ===== Video Player ===== */
.video-player-wrap {
    position: relative;
}

.video-player {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 9;
    background: #000;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    border: 1px solid rgba(255, 255, 255, 0.06);
    touch-action: pan-x;
    user-select: none;
    -webkit-user-select: none;
}

.video-player video {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
    touch-action: pan-x;
    transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.3s ease;
}

.video-player video.swiping {
    transition: none;
}

/* Player Loading State */
.player-loading {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 16px;
    background: rgba(0, 0, 0, 0.7);
    z-index: 10;
    color: var(--white);
    font-size: 0.95rem;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition);
}

.player-loading.active {
    opacity: 1;
    pointer-events: auto;
}

.loading-spinner {
    width: 44px;
    height: 44px;
    border: 3px solid rgba(255, 255, 255, 0.15);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* Now Playing Episode Badge */
.now-playing {
    position: absolute;
    top: 16px;
    left: 16px;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 14px;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(10px);
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--white);
    z-index: 5;
    pointer-events: none;
}

.np-dot {
    width: 8px;
    height: 8px;
    background: var(--primary);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.4); opacity: 0.5; }
}

/* Auto-play Next Episode Overlay */
.auto-next-overlay {
    position: absolute;
    inset: 0;
    z-index: 20;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.82);
    backdrop-filter: blur(8px);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.35s ease;
}

.auto-next-overlay.show {
    opacity: 1;
    pointer-events: auto;
}

.auto-next-content {
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

.auto-next-title {
    font-size: 1rem;
    color: var(--gray-light);
    font-weight: 500;
}

.auto-next-ep {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--white);
}

.auto-next-ring {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    border: 3px solid rgba(255, 255, 255, 0.15);
    border-top-color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    font-weight: 800;
    color: var(--white);
    margin-top: 4px;
    animation: spin 1s linear infinite;
}

.auto-next-cancel {
    margin-top: 8px;
    padding: 8px 24px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 50px;
    color: var(--white);
    font-size: 0.85rem;
    font-weight: 500;
    transition: all var(--transition);
}

.auto-next-cancel:hover {
    background: rgba(255, 107, 53, 0.2);
    border-color: rgba(255, 107, 53, 0.4);
}

/* Swipe Episode Hint (first display) */
.swipe-hint {
    position: absolute;
    bottom: 60px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 20px;
    background: rgba(0, 0, 0, 0.55);
    backdrop-filter: blur(10px);
    border-radius: 50px;
    color: rgba(255, 255, 255, 0.85);
    font-size: 0.85rem;
    font-weight: 500;
    z-index: 8;
    pointer-events: none;
    transition: opacity 0.6s ease, transform 0.6s ease;
    animation: hintBounce 2s ease infinite;
}

.swipe-hint.hide {
    opacity: 0;
    transform: translateX(-50%) translateY(10px);
}

.swipe-hint-arrow-up {
    color: var(--primary-light);
    animation: arrowUp 1.5s ease infinite;
}

.swipe-hint-arrow-down {
    color: var(--accent);
    animation: arrowDown 1.5s ease infinite;
}

@keyframes hintBounce {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(-4px); }
}

@keyframes arrowUp {
    0%, 100% { transform: translateY(0); opacity: 0.6; }
    50% { transform: translateY(-4px); opacity: 1; }
}

@keyframes arrowDown {
    0%, 100% { transform: translateY(0); opacity: 0.6; }
    50% { transform: translateY(4px); opacity: 1; }
}

/* Swipe Direction Preview */
.swipe-preview {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 24px;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(12px);
    border-radius: var(--radius);
    z-index: 7;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease;
}

.swipe-preview:not(.show) {
    display: none;
}

.swipe-preview.next {
    bottom: 24px;
}

.swipe-preview.prev {
    top: 24px;
}

.swipe-preview-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--gradient-primary);
    color: var(--white);
    flex-shrink: 0;
}

.swipe-preview.prev .swipe-preview-icon {
    background: linear-gradient(135deg, var(--accent), #3DBDB4);
}

.swipe-preview-info {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.swipe-preview-label {
    font-size: 0.75rem;
    color: var(--gray-light);
    font-weight: 500;
}

.swipe-preview-ep {
    font-size: 1rem;
    font-weight: 700;
    color: var(--white);
}

/* Boundary Hint */
.swipe-edge-hint {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.8);
    padding: 12px 28px;
    background: rgba(0, 0, 0, 0.75);
    backdrop-filter: blur(10px);
    border-radius: 50px;
    color: var(--white);
    font-size: 0.95rem;
    font-weight: 600;
    z-index: 7;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.25s ease, transform 0.25s ease;
}

.swipe-edge-hint.show {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
}

/* Fullscreen Info Overlays */
.fs-ep-badge,
.fs-drama-name {
    position: absolute;
    z-index: 15;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.35s ease;
}

.video-player.fs-active .fs-ep-badge,
.video-player.fs-active .fs-drama-name {
    opacity: 1;
}

/* Top center: current episode */
.fs-ep-badge {
    top: 24px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 22px;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 700;
    color: var(--white);
    border: 1px solid rgba(255, 255, 255, 0.12);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.fs-ep-dot {
    width: 8px;
    height: 8px;
    background: var(--primary);
    border-radius: 50%;
    box-shadow: 0 0 8px var(--primary);
    flex-shrink: 0;
}

/* Bottom right: drama name */
.fs-drama-name {
    bottom: 64px;
    right: 20px;
    padding: 7px 16px;
    background: rgba(0, 0, 0, 0.55);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: 8px;
    font-size: 0.85rem;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.85);
    border: 1px solid rgba(255, 255, 255, 0.08);
}

/* ===== Episode Selection Section ===== */
.episode-section {
    background: var(--bg-card);
    border-radius: var(--radius);
    padding: 24px 20px;
    border: 1px solid rgba(255, 255, 255, 0.06);
}

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

.episode-title {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--white);
}

.episode-title svg {
    color: var(--primary);
}

.episode-count {
    font-size: 0.85rem;
    color: var(--gray);
}

.episode-count strong {
    color: var(--primary-light);
}

/* Episode Button Grid */
.episode-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(46px, 1fr));
    gap: 10px;
    max-height: 360px;
    overflow-y: auto;
    overflow-x: hidden;
    padding-right: 4px;
}

/* Scrollbar Style */
.episode-grid::-webkit-scrollbar {
    width: 5px;
}

.episode-grid::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.03);
    border-radius: 3px;
}

.episode-grid::-webkit-scrollbar-thumb {
    background: rgba(255, 107, 53, 0.35);
    border-radius: 3px;
}

.episode-grid::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 107, 53, 0.55);
}

.ep-btn {
    position: relative;
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 10px;
    color: var(--gray-light);
    font-size: 1.05rem;
    font-weight: 600;
    transition: all var(--transition);
    overflow: hidden;
}

.ep-btn::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--gradient-primary);
    opacity: 0;
    transition: opacity var(--transition);
}

.ep-btn .ep-num {
    position: relative;
    z-index: 1;
}

/* Episode Button Progress Bar */
.ep-progress {
    position: absolute;
    bottom: 0;
    left: 0;
    height: 3px;
    background: var(--primary);
    border-radius: 0 3px 0 0;
    z-index: 2;
    transition: width 0.3s ease;
}

/* Watched Checkmark */
.ep-check {
    position: absolute;
    top: 4px;
    right: 4px;
    width: 16px;
    height: 16px;
    background: var(--accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.6rem;
    color: var(--dark);
    font-weight: 900;
    z-index: 3;
}

.ep-btn.watched:not(.active) {
    color: var(--accent);
    border-color: rgba(78, 205, 196, 0.25);
}

.ep-btn:hover {
    color: var(--white);
    border-color: rgba(255, 107, 53, 0.4);
    transform: translateY(-2px);
}

.ep-btn.active {
    color: var(--white);
    border-color: transparent;
    box-shadow: 0 4px 16px rgba(255, 107, 53, 0.35);
}

.ep-btn.active::before {
    opacity: 1;
}

/* Previous / Next Episode */
.episode-nav {
    display: flex;
    gap: 10px;
    margin-top: 20px;
}

.ep-nav-btn {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 12px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 10px;
    color: var(--gray-light);
    font-size: 0.9rem;
    font-weight: 500;
    transition: all var(--transition);
}

.ep-nav-btn:hover:not(:disabled) {
    background: rgba(255, 107, 53, 0.1);
    color: var(--white);
    border-color: rgba(255, 107, 53, 0.3);
}

.ep-nav-btn:disabled {
    opacity: 0.35;
    cursor: not-allowed;
}

/* ============================================
   Footer: Copyright
   ============================================ */
.footer {
    background: var(--dark-2);
    padding: 24px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    text-align: center;
}

.copyright {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.85rem;
    letter-spacing: 0.5px;
}

/* ============================================
   Responsive: Tablet (max-width: 1024px)
   ============================================ */
@media (max-width: 1024px) {
    .player-container {
        grid-template-columns: 1fr;
    }

    .episode-grid {
        max-height: 320px;
        grid-template-columns: repeat(auto-fill, minmax(42px, 1fr));
    }

    .header-container {
        grid-template-columns: 220px 1fr;
        gap: 30px;
    }

    .cover-image {
        width: 220px;
        height: 300px;
    }

    .drama-title {
        font-size: 2rem;
    }
}

/* ============================================
   Responsive: Mobile (max-width: 768px)
   ============================================ */
@media (max-width: 768px) {
    .drama-header {
        padding: 24px 0;
    }

    .header-container {
        grid-template-columns: 1fr;
        gap: 20px;
        text-align: center;
    }

    .cover-wrap {
        margin: 0 auto;
    }

    .cover-image {
        width: 180px;
        height: 250px;
        margin: 0 auto;
    }

    .drama-info {
        padding-top: 0;
    }

    .drama-tags {
        justify-content: center;
    }

    .drama-meta {
        justify-content: center;
    }

    .drama-title {
        font-size: 1.6rem;
    }

    .drama-desc {
        text-align: left;
        -webkit-line-clamp: 3;
        margin: 0 auto;
    }

    .player-section {
        padding: 12px 0 20px;
    }

    .player-container {
        padding: 0 12px;
        gap: 14px;
    }

    .video-player {
        border-radius: 10px;
    }

    .swipe-hint {
        bottom: 56px;
        font-size: 0.78rem;
        padding: 6px 16px;
    }

    .swipe-preview {
        padding: 10px 18px;
        gap: 10px;
    }

    .swipe-preview-icon {
        width: 34px;
        height: 34px;
    }

    .swipe-preview-ep {
        font-size: 0.9rem;
    }

    .swipe-edge-hint {
        font-size: 0.85rem;
        padding: 10px 22px;
    }

    .fs-ep-badge {
        top: 16px;
        padding: 6px 18px;
        font-size: 0.88rem;
    }

    .fs-drama-name {
        bottom: 56px;
        right: 14px;
        font-size: 0.78rem;
        padding: 5px 12px;
    }

    .episode-section {
        padding: 20px 16px;
    }

    .episode-grid {
        gap: 8px;
        max-height: 280px;
        grid-template-columns: repeat(auto-fill, minmax(40px, 1fr));
    }

    .ep-btn {
        font-size: 0.9rem;
        border-radius: 8px;
    }
}

/* ============================================
   Responsive: Small Phone (max-width: 480px)
   ============================================ */
@media (max-width: 480px) {
    .header-container {
        padding: 0 16px;
    }

    .cover-image {
        width: 150px;
        height: 210px;
    }

    .drama-title {
        font-size: 1.35rem;
    }

    .drama-desc {
        font-size: 0.9rem;
    }

    .meta-item {
        font-size: 0.85rem;
    }

    .episode-grid {
        gap: 6px;
    }

    .ep-btn {
        font-size: 0.85rem;
        border-radius: 7px;
    }

    .episode-title {
        font-size: 1rem;
    }

    .ep-nav-btn {
        font-size: 0.82rem;
        padding: 10px;
    }

    .now-playing {
        top: 10px;
        left: 10px;
        font-size: 0.75rem;
        padding: 5px 10px;
    }

    .copyright {
        font-size: 0.75rem;
    }
}

/* ============================================
   Responsive: Extra Small (max-width: 360px)
   ============================================ */
@media (max-width: 360px) {
    .episode-grid {
        gap: 4px;
        grid-template-columns: repeat(auto-fill, minmax(36px, 1fr));
    }

    .ep-btn {
        font-size: 0.78rem;
        border-radius: 6px;
    }

    .drama-title {
        font-size: 1.2rem;
    }
}