/* ==========================================
   ZYROX — Landing Page
   Premium Dark Theme
   ========================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=Outfit:wght@700;800;900&display=swap');

:root {
    --bg-primary: #050505;
    --bg-secondary: #0a0a0a;
    --bg-card: rgba(255, 255, 255, 0.03);
    --bg-card-hover: rgba(255, 255, 255, 0.06);
    --bg-glass: rgba(255, 255, 255, 0.04);
    --border-subtle: rgba(255, 255, 255, 0.06);
    --border-hover: rgba(255, 255, 255, 0.12);
    --text-primary: #f5f5f5;
    --text-secondary: #999999;
    --text-muted: #666666;
    --accent-glow: rgba(255, 255, 255, 0.06);
    --gradient-text: linear-gradient(135deg, #ffffff 0%, #999999 100%);
    --gradient-shine: linear-gradient(120deg, transparent 30%, rgba(255,255,255,0.05) 50%, transparent 70%);
}

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

html {
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
    line-height: 1.6;
}

/* === ANIMATED BACKGROUND === */
.bg-grid {
    position: fixed;
    inset: 0;
    z-index: 0;
    background-image:
        linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse 80% 60% at 50% 30%, black 30%, transparent 100%);
    -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 30%, black 30%, transparent 100%);
}

.bg-glow {
    position: fixed;
    z-index: 0;
    border-radius: 50%;
    filter: blur(120px);
    opacity: 0.4;
    pointer-events: none;
}

.bg-glow-1 {
    width: 600px;
    height: 600px;
    top: -200px;
    left: -100px;
    background: radial-gradient(circle, rgba(255,255,255,0.04), transparent 70%);
    animation: glowDrift1 20s ease-in-out infinite;
}

.bg-glow-2 {
    width: 500px;
    height: 500px;
    bottom: -150px;
    right: -100px;
    background: radial-gradient(circle, rgba(255,255,255,0.03), transparent 70%);
    animation: glowDrift2 25s ease-in-out infinite;
}

@keyframes glowDrift1 {
    0%, 100% { transform: translate(0, 0); }
    50% { transform: translate(80px, 60px); }
}

@keyframes glowDrift2 {
    0%, 100% { transform: translate(0, 0); }
    50% { transform: translate(-60px, -40px); }
}

/* === NAVIGATION === */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: 0 24px;
    transition: all 0.3s ease;
}

.nav.scrolled {
    background: rgba(5, 5, 5, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-subtle);
}

.nav-inner {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--text-primary);
}

.nav-logo-text {
    font-family: 'Outfit', sans-serif;
    font-size: 1.6rem;
    font-weight: 800;
    letter-spacing: -0.05em;
    background: linear-gradient(135deg, #ffffff 0%, #999999 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.88rem;
    font-weight: 500;
    transition: color 0.2s;
    position: relative;
}

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

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1.5px;
    background: var(--text-primary);
    transition: width 0.3s ease;
}

.nav-links a:hover::after {
    width: 100%;
}

.nav-cta {
    padding: 9px 22px !important;
    background: var(--text-primary) !important;
    color: var(--bg-primary) !important;
    border-radius: 8px;
    font-weight: 600 !important;
    transition: all 0.2s !important;
}

.nav-cta:hover {
    opacity: 0.9;
    transform: translateY(-1px);
}

.nav-cta::after {
    display: none !important;
}

/* Mobile nav toggle */
.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    color: var(--text-primary);
}

/* === HERO === */
.hero {
    position: relative;
    z-index: 1;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 120px 24px 80px;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px;
    background: var(--bg-glass);
    border: 1px solid var(--border-subtle);
    border-radius: 100px;
    font-size: 0.78rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 32px;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    opacity: 0;
    animation: fadeUp 0.8s ease forwards;
    animation-delay: 0.2s;
}

.hero-badge-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: #4ade80;
    animation: blink 2s ease-in-out infinite;
}

@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.3; }
}

.hero h1 {
    font-size: clamp(2.8rem, 7vw, 5rem);
    font-weight: 800;
    letter-spacing: -0.04em;
    line-height: 1.05;
    margin-bottom: 24px;
    opacity: 0;
    animation: fadeUp 0.8s ease forwards;
    animation-delay: 0.4s;
}

.hero h1 .gradient-text {
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: clamp(1rem, 2.5vw, 1.25rem);
    color: var(--text-secondary);
    max-width: 560px;
    margin: 0 auto 40px;
    line-height: 1.6;
    font-weight: 400;
    opacity: 0;
    animation: fadeUp 0.8s ease forwards;
    animation-delay: 0.6s;
}

.hero-actions {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
    opacity: 0;
    animation: fadeUp 0.8s ease forwards;
    animation-delay: 0.8s;
}

.btn-hero-primary {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 16px 36px;
    background: #fff;
    color: #000;
    border: 1px solid #fff;
    border-radius: 50px;
    font-family: inherit;
    font-size: 1.05rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    text-decoration: none;
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.btn-hero-primary:hover {
    background: transparent;
    color: #fff;
    transform: translateY(-3px);
    box-shadow: 0 10px 40px rgba(255, 255, 255, 0.15);
}

.btn-hero-primary:active {
    transform: translateY(0) scale(0.97);
}

/* Icon hover effect */
.btn-hero-primary svg {
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.btn-hero-primary:hover svg {
    transform: translateY(-2px) rotate(-5deg);
}

.btn-hero-secondary {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 32px;
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-hover);
    border-radius: 12px;
    font-family: inherit;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.25s ease;
    text-decoration: none;
}

.btn-hero-secondary:hover {
    background: var(--bg-card-hover);
    border-color: rgba(255,255,255,0.2);
    transform: translateY(-2px);
}

.hero-stats {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 48px;
    margin-top: 64px;
    opacity: 0;
    animation: fadeUp 0.8s ease forwards;
    animation-delay: 1s;
}

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

.hero-stat-value {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

.hero-stat-label {
    font-size: 0.78rem;
    color: var(--text-muted);
    margin-top: 4px;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-weight: 500;
}

/* === SECTIONS === */
.section {
    position: relative;
    z-index: 1;
    padding: 120px 24px;
}

.section-inner {
    max-width: 1100px;
    margin: 0 auto;
}

.section-header {
    text-align: center;
    max-width: 600px;
    margin: 0 auto 64px;
}

.section-label {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--text-muted);
    margin-bottom: 16px;
    display: block;
}

.section-title {
    font-size: clamp(1.8rem, 4vw, 2.6rem);
    font-weight: 700;
    letter-spacing: -0.03em;
    line-height: 1.15;
    margin-bottom: 16px;
}

.section-desc {
    font-size: 1.05rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Section divider */
.section-divider {
    width: 100%;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border-subtle), transparent);
    position: relative;
    z-index: 1;
}

/* === HOW IT WORKS === */
.steps-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    counter-reset: step;
}

.step-card {
    position: relative;
    padding: 36px 28px;
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: 20px;
    transition: all 0.35s ease;
    counter-increment: step;
    overflow: hidden;
}

.step-card::before {
    content: counter(step, decimal-leading-zero);
    position: absolute;
    top: 20px;
    right: 24px;
    font-size: 4rem;
    font-weight: 800;
    color: rgba(255, 255, 255, 0.03);
    line-height: 1;
    letter-spacing: -0.04em;
}

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

.step-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-subtle);
    border-radius: 14px;
    margin-bottom: 20px;
    color: var(--text-primary);
}

.step-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 10px;
    letter-spacing: -0.01em;
}

.step-desc {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* === FEATURES === */
.features-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.feature-card {
    padding: 32px 28px;
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: 18px;
    transition: all 0.35s ease;
    position: relative;
    overflow: hidden;
}

.feature-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
    opacity: 0;
    transition: opacity 0.35s ease;
}

.feature-card:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-hover);
    transform: translateY(-3px);
}

.feature-card:hover::after {
    opacity: 1;
}

.feature-icon {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-subtle);
    border-radius: 12px;
    margin-bottom: 18px;
    color: var(--text-primary);
}

.feature-title {
    font-size: 1.05rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.feature-desc {
    font-size: 0.88rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* === FEATURE HIGHLIGHT (large card) === */
.feature-highlight {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin-bottom: 20px;
}

.highlight-card {
    padding: 48px 40px;
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: 22px;
    transition: all 0.35s ease;
    position: relative;
    overflow: hidden;
}

.highlight-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-3px);
}

.highlight-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 5px 12px;
    border-radius: 100px;
    font-size: 0.72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-bottom: 20px;
}

.highlight-badge.relay {
    background: rgba(74, 222, 128, 0.08);
    color: #4ade80;
    border: 1px solid rgba(74, 222, 128, 0.15);
}

.highlight-badge.p2p {
    background: rgba(96, 165, 250, 0.08);
    color: #60a5fa;
    border: 1px solid rgba(96, 165, 250, 0.15);
}

.highlight-title {
    font-size: 1.4rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 12px;
}

.highlight-desc {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 24px;
}

.highlight-specs {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.highlight-specs li {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.88rem;
    color: var(--text-secondary);
}

.highlight-specs li svg {
    flex-shrink: 0;
    color: var(--text-muted);
}

/* === CTA SECTION === */
.cta-section {
    padding: 120px 24px;
    position: relative;
    z-index: 1;
}

.cta-card {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
    padding: 72px 48px;
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: 28px;
    position: relative;
    overflow: hidden;
}

.cta-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.15), transparent);
}

.cta-card::after {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at center top, rgba(255,255,255,0.03), transparent 60%);
    pointer-events: none;
}

.cta-title {
    font-size: clamp(1.6rem, 3.5vw, 2.4rem);
    font-weight: 700;
    letter-spacing: -0.03em;
    margin-bottom: 16px;
    position: relative;
    z-index: 1;
}

.cta-desc {
    font-size: 1.05rem;
    color: var(--text-secondary);
    max-width: 480px;
    margin: 0 auto 32px;
    position: relative;
    z-index: 1;
}

.cta-actions {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    flex-wrap: wrap;
    position: relative;
    z-index: 1;
}

/* === FOOTER === */
.footer {
    position: relative;
    z-index: 1;
    padding: 48px 24px 32px;
    border-top: 1px solid var(--border-subtle);
}

.footer-inner {
    max-width: 1100px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 16px;
}

.footer-left {
    display: flex;
    align-items: center;
    gap: 10px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    font-family: 'Outfit', sans-serif;
    font-size: 1.4rem;
    font-weight: 800;
    letter-spacing: -0.05em;
    background: linear-gradient(135deg, #ffffff 0%, #777777 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.footer-sep {
    color: var(--text-muted);
    font-size: 0.85rem;
}

.footer-copy {
    font-size: 0.82rem;
    color: var(--text-muted);
}

.footer-links {
    display: flex;
    gap: 24px;
    list-style: none;
}

.footer-links a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.82rem;
    transition: color 0.2s;
}

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

/* === ANIMATIONS === */
@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(24px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

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

/* Stagger children */
.reveal-stagger > * {
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-stagger.visible > *:nth-child(1) { transition-delay: 0s; opacity: 1; transform: translateY(0); }
.reveal-stagger.visible > *:nth-child(2) { transition-delay: 0.1s; opacity: 1; transform: translateY(0); }
.reveal-stagger.visible > *:nth-child(3) { transition-delay: 0.2s; opacity: 1; transform: translateY(0); }
.reveal-stagger.visible > *:nth-child(4) { transition-delay: 0.3s; opacity: 1; transform: translateY(0); }
.reveal-stagger.visible > *:nth-child(5) { transition-delay: 0.4s; opacity: 1; transform: translateY(0); }
.reveal-stagger.visible > *:nth-child(6) { transition-delay: 0.5s; opacity: 1; transform: translateY(0); }

/* === SCROLLBAR === */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.08); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,0.15); }

::selection {
    background: rgba(255, 255, 255, 0.15);
    color: #fff;
}

/* ═══════════════════════════════════
   RESPONSIVE
   ═══════════════════════════════════ */

/* Tablet */
@media (max-width: 900px) {
    .steps-grid {
        grid-template-columns: 1fr;
        max-width: 500px;
        margin: 0 auto;
    }

    .features-grid {
        grid-template-columns: 1fr;
        max-width: 500px;
        margin: 0 auto;
    }

    .feature-highlight {
        grid-template-columns: 1fr;
    }

    .hero-stats {
        gap: 32px;
    }

    .highlight-card {
        padding: 36px 28px;
    }
}

/* Mobile */
@media (max-width: 640px) {
    .nav-inner {
        height: 60px;
    }

    .nav-links {
        display: none;
        position: absolute;
        top: 60px;
        left: 0;
        right: 0;
        background: rgba(5, 5, 5, 0.95);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        border-bottom: 1px solid var(--border-subtle);
        flex-direction: column;
        padding: 16px 24px 24px;
        gap: 4px;
    }

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

    .nav-links a {
        padding: 10px 0;
        font-size: 0.95rem;
    }

    .nav-links a::after {
        display: none;
    }

    .nav-toggle {
        display: flex;
    }

    .hero {
        padding: 100px 20px 60px;
        min-height: auto;
    }

    .hero h1 {
        font-size: 2.4rem;
    }

    .hero-subtitle {
        font-size: 0.95rem;
    }

    .hero-actions {
        flex-direction: column;
        width: 100%;
    }

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

    .hero-stats {
        gap: 24px;
        flex-wrap: wrap;
    }

    .hero-stat-value {
        font-size: 1.3rem;
    }

    .section {
        padding: 80px 20px;
    }

    .section-header {
        margin-bottom: 40px;
    }

    .cta-card {
        padding: 48px 24px;
        border-radius: 20px;
    }

    .cta-actions {
        flex-direction: column;
        width: 100%;
    }

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

    .footer-inner {
        flex-direction: column;
        text-align: center;
        gap: 12px;
    }

    .footer-left {
        flex-direction: column;
        gap: 4px;
    }

    .footer-sep {
        display: none;
    }

    .footer-links {
        gap: 16px;
    }
}

@media (max-width: 380px) {
    .hero h1 {
        font-size: 2rem;
    }

    .highlight-card {
        padding: 28px 20px;
    }

    .step-card {
        padding: 28px 20px;
    }
}