/* ===== Design Tokens ===== */
:root {
    /* Colors */
    --color-bg: #000000;
    --color-bg-secondary: #0a0a0a;
    --color-bg-card: rgba(28, 28, 30, 0.72);
    --color-surface: #1c1c1e;
    --color-surface-hover: #2c2c2e;
    --color-text-primary: #f5f5f7;
    --color-text-secondary: #a1a1a6;
    --color-text-tertiary: #6e6e73;
    --color-accent: #C41E3A;
    --color-accent-hover: #A01830;
    --color-accent-glow: rgba(196, 30, 58, 0.2);
    --color-gradient-start: #C41E3A;
    --color-gradient-mid: #E8384F;
    --color-gradient-end: #FF6B6B;
    --color-border: rgba(255, 255, 255, 0.08);
    --color-border-hover: rgba(255, 255, 255, 0.15);
    --color-gold: #ffd60a;
    --color-green: #30d158;
    --color-orange: #ff9f0a;

    /* Typography */
    --font-display: 'SF Pro Display', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-body: 'SF Pro Text', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

    /* Spacing */
    --section-padding: 120px 0;
    --container-max: 1120px;
    --container-padding: 0 24px;

    /* Motion */
    --transition-fast: 0.2s cubic-bezier(0.25, 0.1, 0.25, 1);
    --transition-medium: 0.4s cubic-bezier(0.25, 0.1, 0.25, 1);
    --transition-slow: 0.6s cubic-bezier(0.25, 0.1, 0.25, 1);

    /* Glassmorphism */
    --glass-bg: rgba(28, 28, 30, 0.72);
    --glass-blur: blur(20px);
    --glass-border: 1px solid rgba(255, 255, 255, 0.08);
}

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

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-body);
    background: var(--color-bg);
    color: var(--color-text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
}

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

/* ===== Utility ===== */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: var(--container-padding);
}

.gradient-text {
    background: linear-gradient(135deg, var(--color-gradient-start), var(--color-gradient-mid), var(--color-gradient-end));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-label {
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-accent);
    margin-bottom: 12px;
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(36px, 5vw, 56px);
    font-weight: 700;
    line-height: 1.08;
    letter-spacing: -0.02em;
    margin-bottom: 20px;
}

.section-subtitle {
    font-size: clamp(18px, 2.5vw, 22px);
    color: var(--color-text-secondary);
    line-height: 1.5;
    max-width: 640px;
}

/* ===== Navigation ===== */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(0, 0, 0, 0.72);
    backdrop-filter: saturate(180%) blur(20px);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
    border-bottom: 1px solid var(--color-border);
    transition: background var(--transition-fast);
}

.nav-content {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 52px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-display);
    font-size: 18px;
    font-weight: 600;
    letter-spacing: -0.01em;
}

.nav-logo-icon {
    width: 28px;
    height: 28px;
    border-radius: 6px;
    background: linear-gradient(135deg, var(--color-gradient-start), var(--color-gradient-mid));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
    list-style: none;
}

.nav-links a {
    font-size: 14px;
    color: var(--color-text-secondary);
    transition: color var(--transition-fast);
}

.nav-links a:hover {
    color: var(--color-text-primary);
}

.nav-cta {
    padding: 8px 20px;
    border-radius: 980px;
    background: var(--color-accent);
    color: #fff !important;
    font-size: 14px;
    font-weight: 500;
    transition: all var(--transition-fast);
}

.nav-cta:hover {
    background: var(--color-accent-hover);
    transform: scale(1.02);
}

/* Mobile menu */
.nav-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--color-text-primary);
    font-size: 24px;
    cursor: pointer;
    padding: 4px;
}

/* ===== Hero Section ===== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 120px 24px 80px;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 800px;
    height: 800px;
    transform: translate(-50%, -50%);
    background: radial-gradient(circle, var(--color-accent-glow) 0%, transparent 70%);
    opacity: 0.4;
    animation: heroGlow 8s ease-in-out infinite alternate;
}

@keyframes heroGlow {
    0% {
        transform: translate(-50%, -50%) scale(1);
        opacity: 0.3;
    }

    100% {
        transform: translate(-50%, -50%) scale(1.3);
        opacity: 0.5;
    }
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 900px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px;
    border-radius: 980px;
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    border: var(--glass-border);
    font-size: 13px;
    color: var(--color-text-secondary);
    margin-bottom: 32px;
    animation: fadeInUp 0.8s ease-out;
}

.hero-badge-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--color-green);
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.4;
    }
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(48px, 8vw, 80px);
    font-weight: 700;
    line-height: 1.05;
    letter-spacing: -0.03em;
    margin-bottom: 24px;
    animation: fadeInUp 0.8s ease-out 0.1s both;
}

.hero-desc {
    font-size: clamp(18px, 2.5vw, 24px);
    color: var(--color-text-secondary);
    line-height: 1.5;
    max-width: 680px;
    margin: 0 auto 48px;
    animation: fadeInUp 0.8s ease-out 0.2s both;
}

.hero-actions {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
    animation: fadeInUp 0.8s ease-out 0.3s both;
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 16px 32px;
    border-radius: 980px;
    background: var(--color-accent);
    color: #fff;
    font-size: 17px;
    font-weight: 500;
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-primary:hover {
    background: var(--color-accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 8px 32px var(--color-accent-glow);
}

.btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 16px 32px;
    border-radius: 980px;
    background: transparent;
    color: var(--color-accent);
    font-size: 17px;
    font-weight: 500;
    border: 1.5px solid var(--color-accent);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-secondary:hover {
    background: rgba(41, 151, 255, 0.08);
    transform: translateY(-2px);
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 60px;
    margin-top: 80px;
    animation: fadeInUp 0.8s ease-out 0.5s both;
}

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

.hero-stat-value {
    font-family: var(--font-display);
    font-size: 42px;
    font-weight: 700;
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, var(--color-gradient-start), var(--color-gradient-mid));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-stat-label {
    font-size: 14px;
    color: var(--color-text-tertiary);
    margin-top: 4px;
}

/* ===== Scroll Indicator ===== */
.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    animation: fadeInUp 0.8s ease-out 0.6s both;
}

.scroll-indicator span {
    font-size: 12px;
    color: var(--color-text-tertiary);
    letter-spacing: 0.1em;
}

.scroll-line {
    width: 1px;
    height: 40px;
    background: linear-gradient(to bottom, var(--color-text-tertiary), transparent);
    animation: scrollBounce 2s ease-in-out infinite;
}

@keyframes scrollBounce {

    0%,
    100% {
        transform: scaleY(1);
        opacity: 1;
    }

    50% {
        transform: scaleY(0.4);
        opacity: 0.4;
    }
}

/* ===== About Section ===== */
.about {
    padding: var(--section-padding);
    position: relative;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.about-image-wrapper {
    position: relative;
    border-radius: 20px;
    overflow: hidden;
    aspect-ratio: 4 / 3;
    background: var(--color-surface);
}

.about-image-wrapper::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(41, 151, 255, 0.1), rgba(191, 90, 242, 0.1));
    pointer-events: none;
}

.about-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.about-text {
    max-width: 520px;
}

.about-text p {
    color: var(--color-text-secondary);
    font-size: 17px;
    line-height: 1.7;
    margin-bottom: 20px;
}

.about-highlights {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-top: 32px;
}

.highlight-item {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

.highlight-icon {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    border: var(--glass-border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    flex-shrink: 0;
}

.highlight-content h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 4px;
}

.highlight-content p {
    font-size: 14px !important;
    color: var(--color-text-tertiary) !important;
    margin-bottom: 0 !important;
}

/* ===== Services Section ===== */
.services {
    padding: var(--section-padding);
    background: var(--color-bg-secondary);
    position: relative;
}

.services::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--color-border), transparent);
}

.services-header {
    text-align: center;
    margin-bottom: 72px;
}

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

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.service-card {
    position: relative;
    padding: 40px 32px;
    border-radius: 20px;
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    border: var(--glass-border);
    transition: all var(--transition-medium);
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 20px;
    padding: 1px;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.1), transparent 50%);
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    pointer-events: none;
}

.service-card:hover {
    transform: translateY(-8px);
    border-color: var(--color-border-hover);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
}

.service-icon {
    width: 56px;
    height: 56px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    margin-bottom: 24px;
}

.service-icon.blue {
    background: rgba(196, 30, 58, 0.12);
}

.service-icon.purple {
    background: rgba(232, 56, 79, 0.12);
}

.service-icon.orange {
    background: rgba(255, 159, 10, 0.15);
}

.service-icon.green {
    background: rgba(48, 209, 88, 0.15);
}

.service-icon.pink {
    background: rgba(255, 55, 95, 0.15);
}

.service-icon.gold {
    background: rgba(255, 214, 10, 0.15);
}

.service-card h3 {
    font-family: var(--font-display);
    font-size: 22px;
    font-weight: 600;
    margin-bottom: 12px;
    letter-spacing: -0.01em;
}

.service-card p {
    font-size: 15px;
    color: var(--color-text-secondary);
    line-height: 1.6;
}

.service-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 20px;
}

.service-tag {
    font-size: 12px;
    padding: 4px 12px;
    border-radius: 980px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--color-border);
    color: var(--color-text-tertiary);
}

/* ===== Process / How It Works ===== */
.process {
    padding: var(--section-padding);
    position: relative;
}

.process-header {
    text-align: center;
    margin-bottom: 72px;
}

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

.process-steps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
    position: relative;
}

.process-steps::before {
    content: '';
    position: absolute;
    top: 40px;
    left: 10%;
    right: 10%;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--color-accent), var(--color-gradient-mid), var(--color-gradient-end), transparent);
    opacity: 0.3;
}

.process-step {
    text-align: center;
    position: relative;
}

.step-number {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    border: var(--glass-border);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
    position: relative;
    z-index: 1;
}

.step-number span {
    font-family: var(--font-display);
    font-size: 32px;
    font-weight: 700;
    background: linear-gradient(135deg, var(--color-gradient-start), var(--color-gradient-mid));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.process-step h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 8px;
}

.process-step p {
    font-size: 14px;
    color: var(--color-text-tertiary);
    line-height: 1.5;
}

/* ===== Advantages Section ===== */
.advantages {
    padding: var(--section-padding);
    background: var(--color-bg-secondary);
    position: relative;
}

.advantages::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--color-border), transparent);
}

.advantages-header {
    text-align: center;
    margin-bottom: 72px;
}

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

.advantages-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.advantage-card {
    padding: 40px;
    border-radius: 20px;
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    border: var(--glass-border);
    transition: all var(--transition-medium);
}

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

.advantage-card .metric {
    font-family: var(--font-display);
    font-size: 48px;
    font-weight: 700;
    letter-spacing: -0.03em;
    margin-bottom: 8px;
}

.advantage-card h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 12px;
}

.advantage-card p {
    font-size: 15px;
    color: var(--color-text-secondary);
    line-height: 1.6;
}

/* ===== CTA Section ===== */
.cta {
    padding: 160px 24px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 600px;
    height: 600px;
    transform: translate(-50%, -50%);
    background: radial-gradient(circle, rgba(191, 90, 242, 0.15) 0%, transparent 70%);
    animation: heroGlow 8s ease-in-out infinite alternate-reverse;
}

.cta-content {
    position: relative;
    z-index: 1;
}

.cta-title {
    font-family: var(--font-display);
    font-size: clamp(36px, 5vw, 56px);
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -0.02em;
    margin-bottom: 24px;
}

.cta-desc {
    font-size: 20px;
    color: var(--color-text-secondary);
    margin-bottom: 48px;
    max-width: 560px;
    margin-left: auto;
    margin-right: auto;
}

/* ===== Footer ===== */
.footer {
    background: var(--color-bg-secondary);
    border-top: 1px solid var(--color-border);
    padding: 60px 24px 40px;
}

.footer-content {
    max-width: var(--container-max);
    margin: 0 auto;
}

.footer-main {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 48px;
    padding-bottom: 48px;
    border-bottom: 1px solid var(--color-border);
}

.footer-brand h3 {
    font-family: var(--font-display);
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 12px;
}

.footer-brand p {
    font-size: 14px;
    color: var(--color-text-tertiary);
    line-height: 1.6;
    max-width: 320px;
}

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

.footer-col ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-col a {
    font-size: 14px;
    color: var(--color-text-tertiary);
    transition: color var(--transition-fast);
}

.footer-col a:hover {
    color: var(--color-text-primary);
}

.footer-bottom {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    padding-top: 32px;
    text-align: center;
}

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

.footer-icp a {
    color: var(--color-text-tertiary);
    transition: color var(--transition-fast);
}

.footer-icp a:hover {
    color: var(--color-text-secondary);
}

/* ===== Animations ===== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

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

.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: all 0.8s cubic-bezier(0.25, 0.1, 0.25, 1);
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

.reveal-delay-1 {
    transition-delay: 0.1s;
}

.reveal-delay-2 {
    transition-delay: 0.2s;
}

.reveal-delay-3 {
    transition-delay: 0.3s;
}

.reveal-delay-4 {
    transition-delay: 0.4s;
}

/* Counter animation */
.count-up {
    display: inline-block;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .process-steps {
        grid-template-columns: repeat(2, 1fr);
        gap: 48px;
    }

    .process-steps::before {
        display: none;
    }

    .footer-main {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
    }
}

@media (max-width: 768px) {
    :root {
        --section-padding: 80px 0;
    }

    .nav-links {
        display: none;
        position: fixed;
        top: 52px;
        left: 0;
        right: 0;
        bottom: 0;
        flex-direction: column;
        padding: 32px 24px;
        background: rgba(0, 0, 0, 0.95);
        backdrop-filter: saturate(180%) blur(20px);
        gap: 24px;
    }

    .nav-links.open {
        display: flex;
    }

    .nav-links a {
        font-size: 20px;
    }

    .nav-toggle {
        display: block;
    }

    .hero {
        padding-top: 100px;
        min-height: 90vh;
    }

    .hero-stats {
        gap: 32px;
        flex-wrap: wrap;
    }

    .hero-stat-value {
        font-size: 32px;
    }

    .about-grid {
        grid-template-columns: 1fr;
        gap: 48px;
    }

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

    .process-steps {
        grid-template-columns: 1fr;
        gap: 40px;
    }

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

    .footer-main {
        grid-template-columns: 1fr;
        gap: 32px;
    }

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

    .btn-primary,
    .btn-secondary {
        width: 100%;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 36px;
    }

    .section-title {
        font-size: 30px;
    }

    .advantage-card .metric {
        font-size: 36px;
    }
}