/* ===== CSS VARIABLES - YOUTUBE-INSPIRED DARK THEME ===== */
:root {
    /* YouTube Colors */
    --yt-red: #FF0000;
    --yt-red-dark: #CC0000;
    --yt-red-light: #FF4444;
    --yt-dark: #0F0F0F;
    --yt-dark-elevated: #1A1A1A;
    --yt-dark-hover: #272727;
    --yt-white: #FFFFFF;

    /* Grays */
    --gray-100: #F1F1F1;
    --gray-200: #E5E5E5;
    --gray-300: #AAAAAA;
    --gray-400: #717171;
    --gray-500: #606060;
    --gray-600: #3F3F3F;

    /* Typography */
    --font-main: 'Roboto', -apple-system, BlinkMacSystemFont, sans-serif;

    /* Transitions */
    --transition: all 0.3s ease;
    --transition-slow: all 0.5s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-main);
    background: var(--yt-dark);
    color: var(--yt-white);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    display: block;
    object-fit: cover;
}

/* ===== TYPOGRAPHY ===== */
.highlight {
    color: var(--yt-red);
}

.section-tag {
    display: inline-block;
    font-size: 11px;
    font-weight: 500;
    letter-spacing: 2px;
    color: var(--yt-red);
    text-transform: uppercase;
    margin-bottom: 16px;
    padding: 6px 12px;
    background: rgba(255, 0, 0, 0.1);
    border-radius: 4px;
}

.section-title {
    font-size: clamp(32px, 5vw, 48px);
    font-weight: 700;
    letter-spacing: -0.02em;
    line-height: 1.1;
    margin-bottom: 20px;
}

.section-subtitle {
    font-size: 16px;
    color: var(--gray-300);
    max-width: 500px;
    line-height: 1.7;
}

/* ===== BUTTONS ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 12px 24px;
    border-radius: 24px;
    font-weight: 500;
    font-size: 14px;
    cursor: pointer;
    border: none;
    transition: var(--transition);
    font-family: var(--font-main);
}

.btn-primary {
    background: var(--yt-red);
    color: var(--yt-white);
}

.btn-primary:hover {
    background: var(--yt-red-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(255, 0, 0, 0.3);
}

.btn-outline {
    background: transparent;
    color: var(--yt-white);
    border: 1px solid var(--gray-600);
}

.btn-outline:hover {
    border-color: var(--yt-white);
    background: rgba(255, 255, 255, 0.05);
}

.btn-outline-white {
    background: transparent;
    color: var(--yt-white);
    border: 1px solid var(--gray-500);
    border-radius: 24px;
}

.btn-outline-white:hover {
    background: var(--yt-red);
    border-color: var(--yt-red);
}

.btn-full {
    width: 100%;
}

.play-icon {
    width: 32px;
    height: 32px;
    background: var(--yt-red);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
}

/* ===== NAVIGATION ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 16px 0;
    transition: var(--transition);
    background: rgba(15, 15, 15, 0.97);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--gray-600);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 40px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 8px;
}

.logo-icon {
    width: 36px;
    height: 26px;
    background: var(--yt-red);
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.logo-icon::after {
    content: '';
    width: 0;
    height: 0;
    border-left: 8px solid var(--yt-white);
    border-top: 5px solid transparent;
    border-bottom: 5px solid transparent;
    margin-left: 2px;
}

.logo-text {
    font-size: 18px;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.logo-accent {
    color: var(--yt-red);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-links a {
    color: var(--gray-300);
    font-size: 14px;
    font-weight: 500;
}

.nav-links a:hover {
    color: var(--yt-white);
}

.nav-cta {
    background: var(--yt-red);
    color: var(--yt-white);
    padding: 10px 20px;
    border-radius: 20px;
    font-weight: 500;
    font-size: 14px;
}

.nav-cta:hover {
    background: var(--yt-red-dark);
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
}

.mobile-menu-btn span {
    width: 24px;
    height: 2px;
    background: var(--yt-white);
    transition: var(--transition);
}

/* ===== HERO SECTION ===== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 140px 40px 80px;
    background: var(--yt-dark);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 80%;
    height: 150%;
    background: radial-gradient(ellipse at center, rgba(255, 0, 0, 0.08) 0%, transparent 60%);
    pointer-events: none;
}

.hero-container {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.hero-title {
    font-size: clamp(42px, 6vw, 68px);
    font-weight: 700;
    line-height: 1.05;
    letter-spacing: -0.02em;
    margin-bottom: 24px;
}

.hero-subtitle {
    font-size: 17px;
    color: var(--gray-300);
    line-height: 1.7;
    margin-bottom: 40px;
    max-width: 480px;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.hero-media {
    position: relative;
    z-index: 1;
}

.media-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}

.media-item {
    border-radius: 12px;
    overflow: hidden;
    position: relative;
    background: var(--yt-dark-elevated);
}

.media-item img {
    width: 100%;
    height: 180px;
    object-fit: cover;
    transition: var(--transition-slow);
}

.media-item:hover img {
    transform: scale(1.05);
}

.media-item.large {
    grid-column: span 2;
}

.media-item.large img {
    height: 220px;
}

.media-item.wide {
    grid-column: span 2;
}

.media-item.wide img {
    height: 140px;
}

/* YouTube Play Button Overlay */
.media-item::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 50px;
    height: 50px;
    background: rgba(0, 0, 0, 0.7);
    border-radius: 50%;
    opacity: 0;
    transition: var(--transition);
}

.media-item::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-45%, -50%);
    border-left: 14px solid var(--yt-white);
    border-top: 8px solid transparent;
    border-bottom: 8px solid transparent;
    z-index: 1;
    opacity: 0;
    transition: var(--transition);
}

.media-item:hover::after,
.media-item:hover::before {
    opacity: 1;
}

/* ===== TRUSTED SECTION ===== */
.trusted-section {
    padding: 60px 40px;
    border-top: 1px solid var(--gray-600);
    border-bottom: 1px solid var(--gray-600);
    background: var(--yt-dark-elevated);
}

.trusted-label {
    text-align: center;
    font-size: 12px;
    font-weight: 500;
    letter-spacing: 1.5px;
    color: var(--gray-400);
    margin-bottom: 32px;
}

.logo-grid {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 48px;
}

.brand-logo {
    font-size: 16px;
    font-weight: 600;
    color: var(--gray-500);
    letter-spacing: 0.5px;
    transition: var(--transition);
    padding: 8px 16px;
    border-radius: 8px;
}

.brand-logo:hover {
    color: var(--yt-white);
    background: var(--yt-dark-hover);
}

/* ===== SERVICES SECTION ===== */
.services-section {
    padding: 100px 40px;
}

.service-block {
    max-width: 1400px;
    margin: 0 auto 100px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.service-block:last-child {
    margin-bottom: 0;
}

.service-block.reverse {
    direction: rtl;
}

.service-block.reverse>* {
    direction: ltr;
}

.service-media {
    position: relative;
    border-radius: 16px;
    overflow: hidden;
    background: var(--yt-dark-elevated);
}

.service-media img {
    width: 100%;
    height: 420px;
    object-fit: cover;
}

.service-badge {
    position: absolute;
    top: 16px;
    left: 16px;
    background: var(--yt-red);
    color: var(--yt-white);
    padding: 6px 14px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 500;
    letter-spacing: 0.5px;
}

.service-title {
    font-size: clamp(28px, 4vw, 40px);
    font-weight: 700;
    letter-spacing: -0.01em;
    line-height: 1.1;
    margin-bottom: 24px;
}

.service-desc {
    font-size: 15px;
    color: var(--gray-300);
    line-height: 1.8;
    margin-bottom: 32px;
}

/* ===== STATS SECTION ===== */
.stats-section {
    padding: 80px 40px;
    background: linear-gradient(180deg, var(--yt-dark) 0%, var(--yt-dark-elevated) 100%);
    border-top: 1px solid var(--gray-600);
    border-bottom: 1px solid var(--gray-600);
    position: relative;
}

.stats-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 200px;
    height: 3px;
    background: var(--yt-red);
    border-radius: 2px;
}

.stats-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 60px;
    flex-wrap: wrap;
}

.stat-item {
    text-align: center;
    padding: 20px;
}

.stat-number {
    display: block;
    font-size: 52px;
    font-weight: 700;
    color: var(--yt-white);
    letter-spacing: -0.03em;
}

.stat-label {
    display: block;
    font-size: 14px;
    color: var(--gray-400);
    margin-top: 8px;
    font-weight: 500;
}

.stat-divider {
    width: 1px;
    height: 60px;
    background: var(--gray-600);
}

/* ===== HOW IT WORKS ===== */
.how-section {
    padding: 120px 40px;
    background: var(--yt-dark);
}

.how-container {
    max-width: 1200px;
    margin: 0 auto;
}

.how-header {
    text-align: center;
    margin-bottom: 80px;
}

.how-header .section-subtitle {
    margin: 0 auto;
}

.process-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.process-card {
    background: var(--yt-dark-elevated);
    border: 1px solid var(--gray-600);
    border-radius: 16px;
    padding: 40px 32px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.process-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, var(--yt-red) 0%, transparent 100%);
    transform: scaleX(0);
    transform-origin: left;
    transition: var(--transition);
}

.process-card:hover {
    border-color: var(--yt-red);
    transform: translateY(-4px);
}

.process-card:hover::before {
    transform: scaleX(1);
}

.process-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background: rgba(255, 0, 0, 0.1);
    color: var(--yt-red);
    border-radius: 12px;
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 24px;
}

.process-card h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 16px;
}

.process-card p {
    font-size: 14px;
    color: var(--gray-400);
    line-height: 1.7;
}

/* ===== AUDIENCE SECTIONS ===== */
.audience-section {
    padding: 120px 40px;
}

.audience-section.creators {
    background: var(--yt-dark-elevated);
}

.audience-container {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 100px;
    align-items: center;
}

.audience-container.reverse {
    direction: rtl;
}

.audience-container.reverse>* {
    direction: ltr;
}

.audience-title {
    font-size: clamp(32px, 4.5vw, 48px);
    font-weight: 700;
    letter-spacing: -0.02em;
    line-height: 1.1;
    margin-bottom: 40px;
}

.feature-list {
    margin-bottom: 40px;
}

.feature-list li {
    display: flex;
    gap: 16px;
    margin-bottom: 28px;
}

.check-icon {
    width: 24px;
    height: 24px;
    background: rgba(255, 0, 0, 0.15);
    color: var(--yt-red);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    flex-shrink: 0;
    margin-top: 2px;
}

.feature-list strong {
    display: block;
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 6px;
}

.feature-list p {
    font-size: 14px;
    color: var(--gray-400);
    line-height: 1.6;
}

.visual-mockup {
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 25px 60px -15px rgba(0, 0, 0, 0.6);
    border: 1px solid var(--gray-600);
}

.visual-mockup img {
    width: 100%;
    height: 400px;
    object-fit: cover;
}

/* ===== CTA SECTION ===== */
.cta-section {
    padding: 120px 40px;
    background: var(--yt-dark);
    position: relative;
}

.cta-section::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 50%;
    background: linear-gradient(180deg, transparent 0%, rgba(255, 0, 0, 0.03) 100%);
    pointer-events: none;
}

.cta-container {
    max-width: 600px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

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

.cta-title {
    font-size: clamp(36px, 5vw, 52px);
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 16px;
}

.cta-subtitle {
    font-size: 16px;
    color: var(--gray-400);
    margin-bottom: 40px;
    line-height: 1.7;
}

.cta-tabs {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-bottom: 32px;
    background: var(--yt-dark-elevated);
    padding: 6px;
    border-radius: 30px;
    width: fit-content;
    margin-left: auto;
    margin-right: auto;
}

.tab-btn {
    padding: 10px 24px;
    border-radius: 24px;
    border: none;
    background: transparent;
    color: var(--gray-400);
    cursor: pointer;
    transition: var(--transition);
    font-family: var(--font-main);
    font-size: 14px;
    font-weight: 500;
}

.tab-btn.active {
    background: var(--yt-red);
    color: var(--yt-white);
}

.tab-btn:hover:not(.active) {
    color: var(--yt-white);
}

.contact-form {
    background: var(--yt-dark-elevated);
    border: 1px solid var(--gray-600);
    border-radius: 16px;
    padding: 40px;
    text-align: left;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 13px;
    color: var(--gray-400);
    margin-bottom: 8px;
    font-weight: 500;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 14px 16px;
    border-radius: 8px;
    border: 1px solid var(--gray-600);
    background: var(--yt-dark);
    color: var(--yt-white);
    font-family: var(--font-main);
    font-size: 14px;
    transition: var(--transition);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--gray-500);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--yt-red);
}

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

/* ===== FOOTER ===== */
.footer {
    background: var(--yt-dark-elevated);
    border-top: 1px solid var(--gray-600);
    padding: 80px 40px 40px;
}

.footer-container {
    max-width: 1400px;
    margin: 0 auto;
}

.footer-main {
    display: grid;
    grid-template-columns: 1.5fr 2fr;
    gap: 80px;
    margin-bottom: 60px;
}

.footer-brand .logo {
    margin-bottom: 16px;
}

.footer-brand p {
    color: var(--gray-500);
    font-size: 14px;
    max-width: 300px;
    line-height: 1.7;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.footer-col h4 {
    font-size: 14px;
    font-weight: 600;
    color: var(--yt-white);
    margin-bottom: 20px;
}

.footer-col a {
    display: block;
    font-size: 14px;
    color: var(--gray-500);
    margin-bottom: 12px;
}

.footer-col a:hover {
    color: var(--yt-red);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 40px;
    border-top: 1px solid var(--gray-600);
}

.footer-bottom p {
    font-size: 13px;
    color: var(--gray-500);
}

.footer-legal {
    display: flex;
    gap: 24px;
}

.footer-legal a {
    font-size: 13px;
    color: var(--gray-500);
}

.footer-legal a:hover {
    color: var(--yt-white);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {

    .hero-container,
    .service-block,
    .audience-container {
        grid-template-columns: 1fr;
        gap: 60px;
    }

    .service-block.reverse,
    .audience-container.reverse {
        direction: ltr;
    }

    .hero-media {
        order: -1;
    }

    .process-grid {
        grid-template-columns: 1fr;
    }

    .footer-main {
        grid-template-columns: 1fr;
        gap: 60px;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .nav-cta {
        display: none;
    }

    .mobile-menu-btn {
        display: flex;
    }

    .hero {
        padding: 120px 24px 60px;
    }

    .hero-title {
        font-size: 36px;
    }

    .hero-buttons {
        flex-direction: column;
    }

    .hero-buttons .btn {
        width: 100%;
    }

    .media-grid {
        grid-template-columns: 1fr;
    }

    .media-item.large,
    .media-item.wide {
        grid-column: span 1;
    }

    .media-item img,
    .media-item.large img,
    .media-item.wide img {
        height: 180px;
    }

    .trusted-section,
    .services-section,
    .how-section,
    .audience-section,
    .cta-section {
        padding: 60px 24px;
    }

    .logo-grid {
        gap: 24px;
    }

    .brand-logo {
        font-size: 14px;
    }

    .service-media img {
        height: 280px;
    }

    .stats-container {
        flex-direction: column;
        gap: 40px;
    }

    .stat-divider {
        display: none;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .footer-links {
        grid-template-columns: 1fr 1fr;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }
}