@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Outfit:wght@400;500;600;700;800&display=swap');

*,
*::before,
*::after {
    box-sizing: border-box;
}

:root {
    --bg-color: #0b0f19;
    --bg-card: #131b2e;
    --bg-nav: rgba(14, 19, 34, 0.9);
    --text-color: #f3f4f6;
    --text-muted: #9ca3af;
    --accent-color: #00adb5;
    --accent-hover: #00eaee;
    --accent-gradient: linear-gradient(135deg, #00adb5 0%, #3b82f6 100%);
    --border-color: #223049;
    --font-header: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    background-color: var(--bg-color);
    color: var(--text-color);
    margin: 0;
    padding: 0;
    line-height: 1.6;
}

header {
    background: var(--bg-nav);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-container {
    width: 90%;
    max-width: 1800px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.8rem 1.5rem;
}

.logo-link {
    display: flex;
    align-items: center;
    text-decoration: none;
    transition: transform 0.3s ease;
}

.logo-link:hover {
    transform: scale(1.05);
}

.nav-logo {
    height: 38px;
    width: auto;
    border-radius: 6px;
    object-fit: contain;
}

nav ul {
    list-style: none;
    display: flex;
    justify-content: center;
    gap: 2.5rem;
    margin: 0;
    padding: 0;
    flex-wrap: wrap;
}

nav a {
    color: var(--text-muted);
    text-decoration: none;
    font-weight: 500;
    font-size: 1rem;
    transition: color 0.3s, transform 0.3s;
    font-family: var(--font-header);
    position: relative;
    padding-bottom: 4px;
}

nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-gradient);
    transition: width 0.3s;
}

nav a:hover,
nav a.active {
    color: var(--text-color);
}

nav a:hover::after,
nav a.active::after {
    width: 100%;
}

/* Typography */
h1,
h2,
h3,
h4 {
    font-family: var(--font-header);
    color: var(--text-color);
    margin-top: 0;
}

h1 {
    font-size: 2.5rem;
    font-weight: 800;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 1rem;
}

h2 {
    font-size: 2rem;
    font-weight: 700;
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 0.5rem;
    margin-bottom: 1.5rem;
}

h3 {
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--accent-color);
}

p {
    color: var(--text-muted);
    font-weight: 400;
}

a {
    color: var(--accent-color);
    transition: color 0.3s;
}

a:hover {
    color: var(--accent-hover);
}

/* Layout Grid and Container */
.layout-container {
    display: flex;
    align-items: flex-start;
    gap: 3rem;
    width: 90%;
    max-width: 1800px;
    margin: 2.5rem auto;
    padding: 0 1.5rem;
}

/* Left Sidebar (Table of Contents / Section list) */
.sidebar {
    flex: 0 0 260px;
    position: sticky;
    top: 100px;
    background: var(--bg-card);
    padding: 1.5rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    height: calc(100vh - 140px);
    display: flex;
    flex-direction: column;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.sidebar h3 {
    margin-top: 0;
    font-size: 1.1rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.5rem;
    margin-bottom: 1rem;
    color: var(--text-color);
}

.toc-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
    overflow-y: auto;
    flex-grow: 1;
}

.toc-list a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.95rem;
    transition: all 0.3s ease;
    padding-left: 0;
    border-left: 0px solid transparent;
    display: block;
}

.toc-list a.active,
.toc-list a:hover {
    color: var(--accent-color);
    padding-left: 10px;
    border-left: 3px solid var(--accent-color);
    font-weight: 600;
}

.main-content {
    flex: 1;
    min-width: 0;
}

/* General Page Section Styling */
section {
    width: 90%;
    max-width: 1800px;
    margin: 3rem auto;
    padding: 0 1.5rem;
}

/* About / Biography styling */
.about-hero {
    text-align: center;
    margin-bottom: 4rem;
}

.about-hero h1 {
    font-size: 3.5rem;
    margin-bottom: 0.5rem;
}

.about-subtitle {
    font-size: 1.3rem;
    color: var(--accent-color);
    font-family: var(--font-header);
    margin-bottom: 1.5rem;
}

.about-contact {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.about-contact a {
    color: var(--accent-color);
    text-decoration: none;
    transition: color 0.3s;
}

.about-contact a:hover {
    color: var(--accent-hover);
}

.about-bio {
    font-size: 1.15rem;
    max-width: 1000px;
    margin: 0 auto;
    line-height: 1.8;
}

/* Skills Badges Grid */
.skills-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
    margin-top: 1rem;
}

.skill-badge {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-color);
    transition: all 0.3s ease;
}

.skill-badge:hover {
    border-color: var(--accent-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 10px rgba(0, 173, 181, 0.15);
}

/* Timeline Experience styling */
.timeline {
    position: relative;
    max-width: 1000px;
    margin: 2rem auto;
    padding: 0;
    list-style: none;
}

.timeline::before {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    left: 20px;
    width: 2px;
    background: var(--border-color);
}

.timeline-item {
    position: relative;
    margin-bottom: 2.5rem;
    padding-left: 50px;
}

.timeline-dot {
    position: absolute;
    left: 11px;
    top: 5px;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--accent-gradient);
    border: 4px solid var(--bg-color);
}

.timeline-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.15);
    transition: border-color 0.3s, transform 0.3s;
}

.timeline-card:hover {
    border-color: var(--accent-color);
    transform: translateX(4px);
}

.timeline-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
}

.timeline-title h3 {
    margin: 0;
    font-size: 1.25rem;
    color: var(--text-color);
}

.timeline-company {
    color: var(--accent-color);
    font-weight: 500;
    font-size: 0.95rem;
}

.timeline-date {
    font-size: 0.85rem;
    color: var(--text-muted);
    background: rgba(34, 48, 73, 0.5);
    padding: 0.25rem 0.75rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

.timeline-details {
    margin-top: 0.5rem;
    font-size: 0.95rem;
    color: var(--text-muted);
}

.timeline-details p {
    margin: 0;
}

.timeline-media {
    margin-top: 1rem;
    display: flex;
    gap: 0.5rem;
}

/* Image/Media Link Cards inside Timeline */
.timeline-media-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 8px;
    text-decoration: none;
    font-size: 0.85rem;
    color: var(--text-color);
    border: 1px solid var(--border-color);
    transition: all 0.3s;
}

.timeline-media-link:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--accent-color);
}

/* Masonry Gallery styling */
.gallery {
    column-count: 3;
    column-gap: 1.2rem;
    margin-top: 2rem;
}

.gallery-item {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 0.8rem;
    border-radius: 12px;
    text-align: center;
    margin-bottom: 1.2rem;
    display: inline-block;
    width: 100%;
    box-sizing: border-box;
    transition: transform 0.3s, border-color 0.3s;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.15);
}

.gallery-item:hover {
    transform: scale(1.02);
    border-color: var(--accent-color);
}

.gallery-item img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 8px;
}

/* Code Blocks & Docs layouts */
.doc-section {
    margin-bottom: 4rem;
    scroll-margin-top: 100px;
}

.doc-section p {
    font-size: 1rem;
    margin-bottom: 1.2rem;
}

pre,
code {
    font-family: 'Consolas', 'Courier New', Courier, monospace;
}

pre {
    background: #060913;
    border: 1px solid var(--border-color);
    padding: 1.2rem;
    border-radius: 8px;
    overflow-x: auto;
    margin: 1rem 0 1.5rem 0;
}

code {
    background: rgba(255, 255, 255, 0.06);
    padding: 0.2rem 0.4rem;
    border-radius: 4px;
    font-size: 0.9rem;
    color: var(--accent-color);
}

pre code {
    background: transparent;
    padding: 0;
    border-radius: 0;
    color: #e2e8f0;
}

/* Callouts in Docs */
.callout {
    background: rgba(0, 173, 181, 0.08);
    border-left: 4px solid var(--accent-color);
    padding: 1rem 1.2rem;
    border-radius: 0 8px 8px 0;
    margin: 1.5rem 0;
}

.callout p {
    margin: 0;
    font-size: 0.95rem;
    color: var(--text-color);
}

.callout-warning {
    background: rgba(239, 68, 68, 0.08);
    border-left-color: #ef4444;
}

.callout-warning p {
    color: var(--text-color);
}

/* Footer styling */
footer {
    text-align: center;
    padding: 2.5rem;
    background: var(--bg-nav);
    border-top: 1px solid var(--border-color);
    margin-top: 5rem;
}

footer p {
    margin: 0;
    font-size: 0.9rem;
}

/* Responsive Media Queries */
@media (max-width: 900px) {
    .layout-container {
        flex-direction: column;
        gap: 2rem;
    }

    .sidebar {
        position: relative;
        top: 0;
        width: 100%;
        height: auto;
        box-shadow: none;
    }

    .toc-list {
        flex-direction: row;
        flex-wrap: wrap;
        gap: 1rem;
    }

    .gallery {
        column-count: 2;
    }

    .timeline::before {
        left: 15px;
    }

    .timeline-item {
        padding-left: 40px;
    }

    .timeline-dot {
        left: 6px;
    }
}

@media (max-width: 600px) {
    .gallery {
        column-count: 1;
    }

    nav ul {
        gap: 1rem;
    }

    h1 {
        font-size: 2rem;
    }

    h2 {
        font-size: 1.6rem;
    }
}

/* --- Lightbox Modal Overlay --- */
.lightbox-modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(11, 15, 25, 0.95);
    backdrop-filter: blur(15px);
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.lightbox-modal.show {
    display: flex;
    opacity: 1;
}

.lightbox-content {
    position: relative;
    max-width: 85%;
    max-height: 80%;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.lightbox-img {
    max-width: 100%;
    max-height: 70vh;
    object-fit: contain;
    border-radius: 8px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    border: 1px solid var(--border-color);
    transition: transform 0.3s ease;
}

/* Close & Nav Buttons */
.lightbox-close {
    position: absolute;
    top: -45px;
    right: 0;
    color: var(--text-color);
    font-size: 2.2rem;
    font-weight: bold;
    cursor: pointer;
    background: none;
    border: none;
    transition: color 0.3s;
}

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

.lightbox-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(19, 27, 46, 0.6);
    border: 1px solid var(--border-color);
    color: var(--text-color);
    font-size: 1.8rem;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s;
    user-select: none;
}

.lightbox-nav:hover {
    background: var(--accent-gradient);
    border-color: var(--accent-color);
    transform: translateY(-50%) scale(1.1);
}

.lightbox-prev {
    left: -70px;
}

.lightbox-next {
    right: -70px;
}

/* Captions */
.lightbox-caption {
    text-align: center;
    margin-top: 1.5rem;
    max-width: 600px;
}

.lightbox-title {
    font-family: var(--font-header);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-color);
    margin: 0 0 0.5rem 0;
}

.lightbox-desc {
    font-size: 0.95rem;
    color: var(--text-muted);
    margin: 0;
    line-height: 1.5;
}

/* Cursor pointer for clickable elements */
.gallery-item img {
    cursor: pointer;
}

@media (max-width: 900px) {

    .header-container,
    .layout-container,
    section {
        width: 100%;
    }

    .header-container {
        flex-direction: column;
        gap: 1rem;
        padding: 1.2rem 1.5rem;
    }

    .lightbox-prev {
        left: -15px;
        background: rgba(19, 27, 46, 0.8);
    }

    .lightbox-next {
        right: -15px;
        background: rgba(19, 27, 46, 0.8);
    }

    .lightbox-nav {
        width: 40px;
        height: 40px;
        font-size: 1.4rem;
    }

    .lightbox-close {
        right: 10px;
        top: -45px;
    }
}

/* ==========================================================================
   Custom Video Player Styles
   ========================================================================== */
.video-player-container {
    position: relative;
    width: 100%;
    max-width: 1000px;
    margin: 2rem auto;
    background: #060913;
    border-radius: 16px;
    border: 1px solid var(--border-color);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.4);
    overflow: hidden;
    aspect-ratio: 16/9;
    user-select: none;
    transition: border-color 0.3s, box-shadow 0.3s;
}

.video-player-container:hover {
    border-color: rgba(0, 173, 181, 0.4);
    box-shadow: 0 15px 40px rgba(0, 173, 181, 0.08);
}

.main-video-player {
    width: 100%;
    height: 100%;
    display: block;
    object-fit: contain;
    cursor: pointer;
}

/* Large Center Play Overlay */
.play-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(11, 15, 25, 0.4);
    cursor: pointer;
    transition: background-color 0.3s ease, opacity 0.3s ease;
    z-index: 2;
}

.play-overlay:hover {
    background: rgba(11, 15, 25, 0.2);
}

.play-icon-large {
    width: 76px;
    height: 76px;
    background: rgba(19, 27, 46, 0.8);
    border: 2px solid var(--accent-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), border-color 0.3s, box-shadow 0.3s;
    box-shadow: 0 0 25px rgba(0, 173, 181, 0.25);
}

.play-icon-large svg {
    width: 32px;
    height: 32px;
    fill: var(--text-color);
    margin-left: 4px;
    transition: fill 0.3s, transform 0.3s;
}

.play-overlay:hover .play-icon-large {
    transform: scale(1.1);
    border-color: var(--accent-hover);
    box-shadow: 0 0 35px rgba(0, 173, 181, 0.5);
}

.play-overlay:hover .play-icon-large svg {
    fill: var(--accent-hover);
}

/* Hide play overlay when video is playing */
.video-player-container.playing .play-overlay {
    opacity: 0;
    pointer-events: none;
}

/* Custom Controls Wrapper */
.video-controls-wrapper {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(6, 9, 19, 0.95) 0%, rgba(6, 9, 19, 0.7) 60%, rgba(6, 9, 19, 0) 100%);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-top: 1px solid rgba(34, 48, 73, 0.4);
    padding: 1.5rem 1.5rem 1rem 1.5rem;
    opacity: 0;
    transform: translateY(12px);
    transition: opacity 0.35s cubic-bezier(0.4, 0, 0.2, 1), transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 3;
}

.video-player-container:hover .video-controls-wrapper,
.video-player-container.show-controls .video-controls-wrapper {
    opacity: 1;
    transform: translateY(0);
}

/* Progress bar timeline */
.progress-bar-container {
    position: relative;
    width: 100%;
    height: 5px;
    background: rgba(255, 255, 255, 0.12);
    border-radius: 3px;
    cursor: pointer;
    margin-bottom: 1.2rem;
    transition: height 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.progress-bar-container:hover {
    height: 8px;
}

.progress-bar-buffered {
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 3px;
    width: 0;
    pointer-events: none;
}

.progress-bar-filled {
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    background: var(--accent-gradient);
    border-radius: 3px;
    width: 0;
    pointer-events: none;
}

.progress-scrubber {
    position: absolute;
    top: 50%;
    left: 0;
    width: 14px;
    height: 14px;
    background: var(--text-color);
    border: 2.5px solid var(--accent-color);
    border-radius: 50%;
    transform: translate(-50%, -50%) scale(0);
    transition: transform 0.2s ease, box-shadow 0.2s ease, background-color 0.2s;
    pointer-events: none;
    box-shadow: 0 0 10px rgba(0, 173, 181, 0.4);
}

.progress-bar-container:hover .progress-scrubber {
    transform: translate(-50%, -50%) scale(1);
}

/* Controls Buttons Layout */
.controls-buttons-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.controls-left,
.controls-right {
    display: flex;
    align-items: center;
    gap: 1.2rem;
}

.control-btn {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 6px;
    transition: color 0.2s, background-color 0.2s, transform 0.1s;
}

.control-btn:hover {
    color: var(--text-color);
    background-color: rgba(255, 255, 255, 0.05);
}

.control-btn:active {
    transform: scale(0.92);
}

.control-btn svg {
    width: 22px;
    height: 22px;
    fill: currentColor;
    transition: fill 0.2s;
}

/* Volume Slider Controls */
.volume-container {
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.volume-slider {
    -webkit-appearance: none;
    appearance: none;
    width: 0;
    height: 4px;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 2px;
    outline: none;
    transition: width 0.3s ease, background 0.3s;
    overflow: hidden;
    cursor: pointer;
}

.volume-container:hover .volume-slider,
.volume-slider:focus {
    width: 70px;
}

.volume-slider::-webkit-slider-runnable-track {
    width: 100%;
    height: 4px;
}

.volume-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--accent-color);
    box-shadow: -70px 0 0 70px var(--accent-color);
    transition: background-color 0.2s;
}

.volume-slider::-webkit-slider-thumb:hover {
    background: var(--accent-hover);
    box-shadow: -70px 0 0 70px var(--accent-hover);
}

/* Time counter */
.time-display {
    font-size: 0.85rem;
    color: var(--text-muted);
    font-family: var(--font-header);
    user-select: none;
    margin-left: 0.2rem;
}

/* Video Information Cards */
.video-info-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 14px;
    padding: 2rem;
    margin-top: 1.5rem;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
    border-left: 4px solid var(--accent-color);
}

.video-info-card h3 {
    margin: 0 0 0.6rem 0;
    font-size: 1.5rem;
    color: var(--text-color);
}

.video-meta-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
    margin-bottom: 1.2rem;
}

.video-meta-tag {
    background: rgba(0, 173, 181, 0.08);
    color: var(--accent-color);
    border: 1px solid rgba(0, 173, 181, 0.15);
    padding: 0.2rem 0.75rem;
    border-radius: 6px;
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.03em;
    text-transform: uppercase;
}

.video-description {
    color: var(--text-muted);
    line-height: 1.7;
    margin: 0;
    font-size: 0.98rem;
}

/* Future Video Placeholders styling */
.coming-soon-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
    margin-top: 2rem;
}

.coming-soon-card {
    background: rgba(19, 27, 46, 0.4);
    border: 1px dashed var(--border-color);
    border-radius: 14px;
    padding: 3rem 2rem;
    text-align: center;
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
}

.coming-soon-card:hover {
    border-color: rgba(0, 173, 181, 0.3);
    background: rgba(19, 27, 46, 0.6);
    transform: translateY(-2px);
}

.coming-soon-card .coming-soon-icon {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: var(--text-muted);
    transition: color 0.3s;
}

.coming-soon-card:hover .coming-soon-icon {
    color: var(--accent-color);
}

.coming-soon-card h3 {
    margin: 0 0 0.5rem 0;
    font-size: 1.25rem;
    color: var(--text-muted);
}

.coming-soon-card p {
    margin: 0;
    font-size: 0.9rem;
    color: rgba(156, 163, 175, 0.6);
}

/* Commercials grid layout */
.commercials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin: 2rem 0;
}

@media (max-width: 1000px) {
    .commercials-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 600px) {
    .commercials-grid {
        grid-template-columns: 1fr;
    }
}

/* YouTube Playlist Embed Container */
.youtube-player-container {
    position: relative;
    width: 100%;
    max-width: 1000px;
    margin: 2rem auto;
    background: #060913;
    border-radius: 16px;
    border: 1px solid var(--border-color);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.4);
    overflow: hidden;
    aspect-ratio: 16/9;
    transition: border-color 0.3s, box-shadow 0.3s;
}

.youtube-player-container:hover {
    border-color: rgba(0, 173, 181, 0.4);
    box-shadow: 0 15px 40px rgba(0, 173, 181, 0.08);
}

.youtube-player-container iframe {
    width: 100%;
    height: 100%;
    border: none;
    display: block;
}

/* Ko-fi Donate Button */
.donate-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--accent-gradient);
    color: var(--text-color) !important;
    text-decoration: none;
    padding: 0.5rem 1.2rem;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.9rem;
    font-family: var(--font-header);
    box-shadow: 0 4px 15px rgba(0, 173, 181, 0.2);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid rgba(0, 173, 181, 0.3);
}

.donate-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 173, 181, 0.4);
    border-color: var(--accent-hover);
}

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