/* ==========================================================================
   High-end design system
   ========================================================================== */
@import url('../../../assets/fonts/fonts.css');

:root {
    /* Dark color palette */
    --bg-base: #050505;
    --bg-surface: #0a0a0a;
    --bg-panel: #111111;
    
    /* Accent: low-saturation dark gold */
    --gold: #b39b75;
    --gold-hover: #cbb48f;
    --gold-dim: rgba(179, 155, 117, 0.15);
    
    /* Text system */
    --text-100: #ffffff;
    --text-200: #e0e0e0;
    --text-300: #999999;
    --text-400: #555555;
    
    /* Thin grid lines */
    --line: rgba(255, 255, 255, 0.06);
    --line-strong: rgba(255, 255, 255, 0.12);

    /* Typography */
    --font-display: 'Oswald', 'Noto Sans SC', sans-serif;
    --font-body: 'Noto Sans SC', -apple-system, sans-serif;
    --nav-h: 90px;
}

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

html {
    scroll-behavior: smooth;
    overflow-x: hidden; /* required for position:fixed to work on iOS Safari */
}

body {
    font-family: var(--font-body);
    background-color: var(--bg-base);
    color: var(--text-200);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    background-image: 
        linear-gradient(90deg, var(--line) 1px, transparent 1px);
    background-size: 25vw 100%;
}

a { text-decoration: none; color: inherit; transition: all 0.3s ease; }
ul { list-style: none; }

/* ==========================================================================
   Typography & common components
   ========================================================================== */
.container {
    max-width: 1600px;
    margin: 0 auto;
    padding: 0 clamp(32px, 7vw, 140px);
    position: relative;
}

/* Minimal button */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 16px 40px;
    font-size: 0.85rem;
    font-family: var(--font-display);
    letter-spacing: 3px;
    text-transform: uppercase;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    border: none;
    background: transparent;
    z-index: 1;
}

.btn-gold {
    background-color: var(--gold);
    color: var(--bg-base);
    font-weight: 500;
}

.btn-gold::before {
    content: '';
    position: absolute;
    top: 0; left: 0; width: 0; height: 100%;
    background: #ffffff;
    transition: width 0.4s cubic-bezier(0.19, 1, 0.22, 1);
    z-index: -1;
}

.btn-gold:hover::before { width: 100%; }
.btn-gold:hover { color: var(--bg-base); }

.btn-outline {
    border: 1px solid var(--line-strong);
    color: var(--text-200);
}

.btn-outline:hover {
    border-color: var(--gold);
    color: var(--gold);
}

/* Decorative placeholder image container */
.img-placeholder {
    background: var(--bg-panel);
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-400);
    font-family: monospace;
    border: 1px solid var(--line);
    position: relative;
    overflow: hidden;
    text-align: center;
    padding: 2rem;
}

.placeholder-img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    filter: saturate(0.4) brightness(0.55);
    transition: filter 0.4s ease;
}

.img-placeholder:hover .placeholder-img {
    filter: saturate(0.55) brightness(0.65);
}

.img-placeholder::after {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: linear-gradient(
        to bottom,
        rgba(5,5,5,0.25) 0%,
        rgba(5,5,5,0.1) 50%,
        rgba(5,5,5,0.55) 100%
    );
    pointer-events: none;
    z-index: 1;
}
}

/* Small decorative label */
.eyebrow {
    font-family: var(--font-display);
    font-size: 0.75rem;
    color: var(--gold);
    letter-spacing: 4px;
    text-transform: uppercase;
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 1.5rem;
}

.eyebrow::before {
    content: '';
    width: 30px;
    height: 1px;
    background-color: var(--gold);
}

/* Large display heading */
.title-huge {
    font-family: var(--font-display);
    font-size: clamp(3rem, 6vw, 6.5rem);
    font-weight: 300;
    line-height: 1.1;
    color: var(--text-100);
    text-transform: uppercase;
    margin-bottom: 2rem;
}

.title-huge span {
    color: var(--gold);
    font-style: italic;
}

/* ==========================================================================
   Header navigation
   ========================================================================== */
.navbar {
    position: fixed;
    top: 0; left: 0; width: 100%;
    height: var(--nav-h);
    display: flex;
    align-items: center;
    z-index: 100;
    border-bottom: 1px solid var(--line);
    background: rgba(5, 5, 5, 0.8);
    backdrop-filter: blur(10px);
}

/* Raise above float-widget (z-index: 200) when mobile drawer is open */
.navbar.nav-open { z-index: 300; }

.nav-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

.logo {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: 2px;
    color: var(--text-100);
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo svg { width: 24px; height: 24px; fill: var(--gold); }

.nav-links {
    display: flex;
    gap: 3vw;
}

.nav-links a {
    font-family: var(--font-display);
    font-size: 0.85rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--text-300);
    position: relative;
    padding: 10px 0;
}

.nav-links a:hover, .nav-links a.active { color: var(--text-100); }

.nav-tools {
    display: flex;
    align-items: center;
    gap: 2rem;
    border-left: 1px solid var(--line);
    padding-left: 2rem;
    height: var(--nav-h);
}

.lang-switcher {
    position: relative;
}

.lang-switch {
    font-family: var(--font-display);
    font-size: 0.8rem;
    letter-spacing: 1px;
    color: var(--text-300);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 5px 10px;
    border-radius: 4px;
    transition: color 0.2s;
    user-select: none;
}

.lang-switch:hover { color: var(--text-100); }

.lang-caret {
    transition: transform 0.2s;
}

.lang-switcher.open .lang-caret {
    transform: rotate(180deg);
}

.lang-dropdown {
    display: none;
    position: absolute;
    top: calc(100% + 6px);
    right: 0;
    min-width: 140px;
    background: rgba(8, 8, 8, 0.96);
    border: 1px solid var(--line);
    border-radius: 6px;
    padding: 4px 0;
    backdrop-filter: blur(16px);
    z-index: 200;
    box-shadow: 0 8px 28px rgba(0, 0, 0, 0.55);
}

.lang-switcher.open .lang-dropdown {
    display: block;
}

.lang-option {
    display: block;
    padding: 8px 16px;
    font-family: var(--font-display);
    font-size: 0.78rem;
    letter-spacing: 0.5px;
    color: var(--text-300);
    text-decoration: none;
    transition: color 0.15s, background 0.15s;
    white-space: nowrap;
}

.lang-option:hover {
    color: var(--text-100);
    background: rgba(255, 255, 255, 0.06);
}

.lang-option.active {
    color: var(--gold);
}

/* ==========================================================================
   Hero section — asymmetric layout
   ========================================================================== */
.hero {
    padding-top: var(--nav-h);
    min-height: 100vh;
    display: grid;
    grid-template-columns: 55% 45%;
    border-bottom: 1px solid var(--line);
}

.hero-content {
    padding: 8vw 4vw 6vw clamp(32px, 8vw, 160px);
    display: flex;
    flex-direction: column;
    justify-content: center;
    position: relative;
}

.hero-desc {
    font-size: 1.1rem;
    color: var(--text-300);
    max-width: 480px;
    margin-bottom: 4rem;
    font-weight: 300;
}

.hero-actions {
    display: flex;
    gap: 1.5rem;
}

/* Large background watermark text */
.watermark {
    position: absolute;
    bottom: -5%;
    left: 2vw;
    font-family: var(--font-display);
    font-size: 18vw;
    font-weight: 700;
    color: rgba(255, 255, 255, 0.02);
    line-height: 1;
    pointer-events: none;
    z-index: -1;
}

.hero-visual {
    border-left: 1px solid var(--line);
    position: relative;
    padding: 3vw clamp(32px, 7vw, 140px) 3vw 2.5vw;
    display: flex;
    flex-direction: column;
}

.hero-image-wrap {
    flex: 1;
    position: relative;
}

.decorative-box {
    position: absolute;
    bottom: -30px;
    left: -50px;
    background: var(--bg-surface);
    border: 1px solid var(--line-strong);
    padding: 2rem;
    z-index: 2;
    width: 250px;
}

.decorative-box p {
    font-family: var(--font-display);
    font-size: 2rem;
    color: var(--gold);
    line-height: 1.2;
    margin-bottom: 5px;
}

.decorative-box span {
    font-size: 0.75rem;
    color: var(--text-400);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* ==========================================================================
   Hero Panel — live proxy rules visualization
   ========================================================================== */
.hero-panel {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    background: var(--bg-panel);
    overflow: hidden;
}

/* CRT scanline texture */
.hp-scanline {
    position: absolute;
    inset: 0;
    background: repeating-linear-gradient(
        0deg,
        transparent,
        transparent 3px,
        rgba(255,255,255,0.013) 3px,
        rgba(255,255,255,0.013) 4px
    );
    pointer-events: none;
    z-index: 1;
}

.hp-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.85rem 1.5rem;
    border-bottom: 1px solid var(--line-strong);
    background: var(--bg-surface);
    flex-shrink: 0;
    position: relative;
    z-index: 2;
}

.hp-dots {
    display: flex;
    gap: 6px;
    align-items: center;
}

.hp-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    display: block;
}

.hp-title {
    flex: 1;
    text-align: center;
    font-family: var(--font-display);
    font-size: 0.62rem;
    letter-spacing: 3px;
    color: var(--text-400);
    text-transform: uppercase;
}

.hp-live {
    display: flex;
    align-items: center;
    gap: 5px;
    font-family: var(--font-display);
    font-size: 0.6rem;
    letter-spacing: 2px;
    color: #28c840;
}

.hp-live-dot {
    display: block;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: #28c840;
    box-shadow: 0 0 6px #28c840;
    animation: hp-pulse 2s ease-in-out infinite;
}

@keyframes hp-pulse {
    0%, 100% { opacity: 1; box-shadow: 0 0 6px #28c840; }
    50%       { opacity: 0.4; box-shadow: 0 0 14px #28c840; }
}

.hp-rules {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    position: relative;
    z-index: 2;
}

.hp-rule-head {
    display: grid;
    grid-template-columns: 36px 150px 1fr 70px;
    padding: 0.5rem 1.5rem;
    font-size: 0.58rem;
    letter-spacing: 2px;
    color: var(--text-400);
    text-transform: uppercase;
    border-bottom: 1px solid var(--line-strong);
    background: rgba(255,255,255,0.02);
}

.hp-rule {
    display: grid;
    grid-template-columns: 36px 150px 1fr 70px;
    padding: 0.65rem 1.5rem;
    font-family: 'Courier New', 'Menlo', monospace;
    font-size: 0.8rem;
    align-items: center;
    border-bottom: 1px solid var(--line);
}

/* Prevent grid cells from overflowing into adjacent columns */
.hp-rule > *,
.hp-rule-head > * {
    min-width: 0;
    overflow: hidden;
    white-space: nowrap;
}

@keyframes hp-rowflash {
    0%   { background: transparent; }
    8%   { background: rgba(179, 155, 117, 0.09); }
    16%  { background: transparent; }
    100% { background: transparent; }
}

.hp-r1 { animation: hp-rowflash 8s ease 0.0s infinite; }
.hp-r2 { animation: hp-rowflash 8s ease 1.1s infinite; }
.hp-r3 { animation: hp-rowflash 8s ease 2.2s infinite; }
.hp-r4 { animation: hp-rowflash 8s ease 3.3s infinite; }
.hp-r5 { animation: hp-rowflash 8s ease 4.4s infinite; }
.hp-r6 { animation: hp-rowflash 8s ease 5.5s infinite; }
.hp-r7 { animation: hp-rowflash 8s ease 6.6s infinite; }

.hp-ln {
    color: var(--text-400);
    font-size: 0.65rem;
}

.hp-rtype {
    color: var(--text-400);
    font-size: 0.72rem;
    letter-spacing: 0.3px;
}

.hp-rval {
    color: var(--text-200);
    padding-right: 1rem;
    font-size: 0.8rem;
}

.hp-ract {
    font-size: 0.65rem;
    letter-spacing: 1.5px;
    font-weight: 700;
    text-align: right;
    font-family: var(--font-display);
}

.hp-ract-proxy  { color: var(--gold); }
.hp-ract-direct { color: var(--text-400); }

.hp-metrics {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    border-top: 1px solid var(--line-strong);
    background: var(--bg-surface);
    flex-shrink: 0;
    position: relative;
    z-index: 2;
}

.hp-metric {
    padding: 1rem 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 6px;
    border-right: 1px solid var(--line);
}

.hp-metric:last-child { border-right: none; }

.hp-mlabel {
    font-size: 0.6rem;
    color: var(--text-400);
    text-transform: uppercase;
    letter-spacing: 1.5px;
}

.hp-mval {
    font-family: var(--font-display);
    font-size: 1.4rem;
    color: var(--text-100);
    letter-spacing: 1px;
    line-height: 1;
}

.hp-mval small {
    font-size: 0.62rem;
    color: var(--text-400);
    letter-spacing: 1px;
    margin-left: 3px;
}

.hp-mval-gold { color: var(--gold); }

/* ==========================================================================
   Stats bar
   ========================================================================== */
.stats-bar {
    border-bottom: 1px solid var(--line);
    background: var(--bg-surface);
}

.stats-inner {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
}

.stat-block {
    padding: 4rem 2rem;
    text-align: center;
    border-right: 1px solid var(--line);
}
.stat-block:last-child { border-right: none; }

.stat-num {
    font-family: var(--font-display);
    font-size: 3.5rem;
    font-weight: 300;
    color: var(--text-100);
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 0.8rem;
    color: var(--gold);
    text-transform: uppercase;
    letter-spacing: 2px;
}

/* ==========================================================================
   Features section — advanced asymmetric layout
   ========================================================================== */
.features-section {
    padding: 8vw 0;
    border-bottom: 1px solid var(--line);
}

.features-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4vw;
}

.feature-large {
    position: relative;
}

.feature-large .img-placeholder {
    height: 600px;
    margin-bottom: 3rem;
}

.feature-card {
    padding-bottom: 3rem;
    margin-bottom: 3rem;
    border-bottom: 1px solid var(--line);
    display: grid;
    grid-template-columns: 60px 1fr;
    gap: 2rem;
}

.feature-card:last-child {
    border-bottom: none;
}

.f-icon {
    font-family: var(--font-display);
    font-size: 1.5rem;
    color: var(--gold);
    font-weight: 300;
    border: 1px solid var(--gold-dim);
    width: 60px; height: 60px;
    display: flex; align-items: center; justify-content: center;
}

.f-title {
    font-size: 1.5rem;
    font-weight: 400;
    color: var(--text-100);
    margin-bottom: 1rem;
}

.f-desc {
    color: var(--text-300);
    font-weight: 300;
}

/* ==========================================================================
   Use Cases section — SEO extension
   ========================================================================== */
.use-cases-section {
    padding: 8vw 0;
    border-bottom: 1px solid var(--line);
}

.uc-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2vw;
    margin-top: 4rem;
}

.uc-card {
    background: var(--bg-panel);
    border: 1px solid var(--line);
    padding: 3rem;
    position: relative;
    transition: all 0.4s ease;
}

.uc-card:hover {
    border-color: var(--gold);
    background: rgba(179, 155, 117, 0.03);
    transform: translateY(-5px);
}

.uc-num {
    font-family: var(--font-display);
    font-size: 1.25rem;
    color: var(--text-400);
    margin-bottom: 2rem;
    display: block;
}

.uc-title {
    font-size: 1.5rem;
    color: var(--text-100);
    margin-bottom: 1rem;
    font-weight: 400;
}

.uc-desc {
    color: var(--text-300);
    font-size: 0.95rem;
    line-height: 1.8;
}

/* ==========================================================================
   Architecture section — SEO extension
   ========================================================================== */
.architecture-section {
    padding: 8vw 0;
    border-bottom: 1px solid var(--line);
    background-color: var(--bg-surface);
}

.arch-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6vw;
    align-items: center;
}

.arch-code-window {
    background: #000;
    border: 1px solid var(--line-strong);
    border-radius: 4px;
    overflow: hidden;
    font-family: monospace;
    font-size: 0.85rem;
    line-height: 1.5;
    color: #a0a0a0;
}

.arch-code-header {
    background: var(--bg-panel);
    padding: 10px 1rem;
    border-bottom: 1px solid var(--line-strong);
    display: flex;
    gap: 6px;
}

.arch-code-header span {
    width: 10px; height: 10px; border-radius: 50%;
    background: var(--line-strong);
}

.arch-code-body {
    padding: 2rem;
    white-space: pre;
    overflow-x: auto;
}

.code-key { color: var(--gold); }
.code-string { color: #8bb174; }

/* ==========================================================================
   Download section
   ========================================================================== */
.download-section {
    padding: 8vw 0;
    position: relative;
    border-bottom: 1px solid var(--line);
}

.dl-layout {
    display: grid;
    grid-template-columns: 4fr 5fr;
    gap: 6vw;
    align-items: center;
}

.platform-list {
    border-top: 1px solid var(--line);
}

.platform-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 2rem 0;
    border-bottom: 1px solid var(--line);
    group: hover;
}

.platform-item:hover {
    border-bottom-color: var(--gold);
}

.p-left {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.p-num {
    font-family: var(--font-display);
    font-size: 0.9rem;
    color: var(--text-400);
}

.p-name {
    font-size: 1.25rem;
    color: var(--text-200);
    transition: color 0.3s;
}

.platform-item:hover .p-name { color: var(--gold); }

.p-tag {
    font-family: var(--font-display);
    font-size: 0.75rem;
    letter-spacing: 1px;
    padding: 4px 12px;
    border: 1px solid var(--line-strong);
    color: var(--text-300);
}

/* ==========================================================================
   FAQ section — long-tail SEO
   ========================================================================== */
.faq-section {
    padding: 8vw 0;
    border-bottom: 1px solid var(--line);
}

.faq-container {
    max-width: 1000px;
    margin: 0 auto;
}

.faq-item {
    border-bottom: 1px solid var(--line);
    padding: 2.5rem 0;
}

.faq-item:first-of-type {
    border-top: 1px solid var(--line);
}

.faq-q {
    font-size: 1.3rem;
    color: var(--text-100);
    margin-bottom: 1rem;
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
}

.faq-q::before {
    content: 'Q.';
    font-family: var(--font-display);
    font-size: 1.5rem;
    color: var(--gold);
    line-height: 1;
}

.faq-a {
    color: var(--text-300);
    padding-left: 2.8rem;
    font-size: 0.95rem;
    line-height: 1.8;
}

/* ==========================================================================
   GitHub CTA
   ========================================================================== */
.cta-section {
    padding: 6vw 4vw;
    background: var(--bg-surface);
    border-bottom: 1px solid var(--line);
    text-align: center;
}

.cta-inner {
    max-width: 800px;
    margin: 0 auto;
}

.cta-icon {
    width: 48px; height: 48px;
    fill: var(--gold);
    margin-bottom: 2rem;
}

/* ==========================================================================
   Footer
   ========================================================================== */
footer {
    padding: 6vw 4vw 2vw;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 4vw;
    margin-bottom: 6vw;
}

.f-links li { margin-bottom: 1rem; }
.f-links a { color: var(--text-300); font-size: 0.9rem; }
.f-links a:hover { color: var(--gold); }

.footer-bottom {
    padding-top: 2rem;
    border-top: 1px solid var(--line);
    display: flex;
    justify-content: space-between;
    font-family: var(--font-display);
    font-size: 0.75rem;
    letter-spacing: 1px;
    color: var(--text-400);
    text-transform: uppercase;
}

/* ==========================================================================
   Responsive — base breakpoints
   ========================================================================== */
@media (max-width: 1024px) {
    .hero { grid-template-columns: 1fr; min-height: auto; }
    .hero-visual { border-left: none; border-top: 1px solid var(--line); padding: 4vw; height: 50vh; }
    .watermark { font-size: 25vw; bottom: 10%; }
    .stats-inner { grid-template-columns: 1fr 1fr; }
    .stat-block { border-bottom: 1px solid var(--line); }
    .stat-block:nth-child(even) { border-right: none; }
    .features-grid, .dl-layout, .arch-layout { grid-template-columns: 1fr; gap: 4vw;}
    .uc-grid { grid-template-columns: 1fr; }
    .feature-large .img-placeholder { height: 400px; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    /* Hide decorative box to avoid left:-50px overflow on mobile */
    .decorative-box { display: none; }
}

/* ==========================================================================
   Mobile navigation — hamburger + drawer
   ========================================================================== */

/* Hamburger button — hidden on desktop */
.nav-hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 40px;
    height: 40px;
    padding: 8px;
    background: none;
    border: none;
    cursor: pointer;
    flex-shrink: 0;
}

.nav-hamburger span {
    display: block;
    width: 22px;
    height: 1.5px;
    background: var(--text-200);
    transition: transform 0.25s ease, opacity 0.25s ease;
    transform-origin: center;
}

/* Animated X state when menu is open */
.nav-open .nav-hamburger span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-open .nav-hamburger span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav-open .nav-hamburger span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* Mobile drawer — hidden by default */
.nav-mobile {
    display: none;
    position: fixed;
    top: var(--nav-h);
    left: 0;
    width: 100%;
    height: calc(100vh - var(--nav-h));
    background: rgba(5, 5, 5, 0.97);
    backdrop-filter: blur(16px);
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    padding: 2rem clamp(32px, 7vw, 64px) 3rem;
    border-top: 1px solid var(--line);
    opacity: 0;
    transform: translateY(-8px);
    transition: opacity 0.25s ease, transform 0.25s ease;
    pointer-events: none;
    z-index: 99;
}

.nav-open .nav-mobile {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

.nav-mobile-links {
    display: flex;
    flex-direction: column;
    gap: 0;
    border-bottom: 1px solid var(--line);
    margin-bottom: 2rem;
    padding-bottom: 2rem;
}

.nav-mobile-links a {
    font-family: var(--font-display);
    font-size: 1.5rem;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--text-300);
    padding: 1rem 0;
    border-bottom: 1px solid var(--line);
    transition: color 0.2s ease;
}

.nav-mobile-links a:last-child { border-bottom: none; }
.nav-mobile-links a:hover,
.nav-mobile-links a.active { color: var(--gold); }

.nav-mobile-lang {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.nav-mobile-lang-item {
    font-family: var(--font-display);
    font-size: 0.72rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--text-400);
    padding: 0.5rem 1rem;
    border: 1px solid var(--line);
    transition: all 0.2s ease;
}

.nav-mobile-lang-item:hover,
.nav-mobile-lang-item.active {
    color: var(--gold);
    border-color: rgba(179,155,117,0.4);
    background: var(--gold-dim);
}

@media (max-width: 768px) {
    .nav-links, .nav-tools { display: none; }
    .nav-hamburger { display: flex; }
    .nav-mobile { display: block; }
    .navbar { height: var(--nav-h); }

    .title-huge { font-size: 3rem; }
    .stats-inner { grid-template-columns: 1fr; }
    .stat-block { border-right: none; padding: 3rem 1rem; }
    .footer-grid { grid-template-columns: 1fr; gap: 3rem; }
    .footer-bottom { flex-direction: column; gap: 1rem; text-align: center; }
    .platform-item { flex-direction: column; align-items: flex-start; gap: 1rem; }
    .faq-q { flex-direction: column; gap: 0.5rem; }
    .faq-a { padding-left: 0; margin-top: 1rem;}

    /* Hero actions — wrap buttons on small screens */
    .hero-actions { flex-wrap: wrap; gap: 1rem; }
    .hero-actions .btn { flex: 1; min-width: 140px; justify-content: center; }

    /* Hero panel — reduce column widths and padding to prevent overflow */
    .hp-rule-head,
    .hp-rule {
        grid-template-columns: 28px 110px 1fr 60px;
        padding-left: 1rem;
        padding-right: 1rem;
    }
    .hp-header { padding: 0.75rem 1rem; }
    .hp-metric { padding: 0.75rem 1rem; }
}

@media (max-width: 480px) {
    .title-huge { font-size: 2.4rem; }
    .nav-mobile-links a { font-size: 1.2rem; }

    /* Hero panel — further compact on very small screens */
    .hp-rule-head,
    .hp-rule {
        grid-template-columns: 22px 84px 1fr 50px;
        padding-left: 0.75rem;
        padding-right: 0.75rem;
        font-size: 0.7rem;
    }
    .hp-rtype { font-size: 0.62rem; letter-spacing: 0; }
    .hp-header { padding: 0.6rem 0.75rem; }
    .hp-metric { padding: 0.6rem 0.75rem; }
    .hp-mval { font-size: 1.2rem; }
}

/* ==========================================================================
   Protocol keyword ticker
   ========================================================================== */
.ticker-bar {
    overflow: hidden;
    background: var(--bg-panel);
    border-bottom: 1px solid var(--line);
    padding: 1rem 0;
    cursor: default;
}

.ticker-track {
    display: flex;
    animation: ticker-scroll 50s linear infinite;
    width: max-content;
}

.ticker-bar:hover .ticker-track { animation-play-state: paused; }

.ticker-item {
    font-family: var(--font-display);
    font-size: 0.75rem;
    letter-spacing: 3px;
    color: var(--text-400);
    padding: 0 2.5rem;
    text-transform: uppercase;
    white-space: nowrap;
    user-select: none;
}

.ticker-item b { color: var(--gold); font-weight: 400; }

.ticker-sep {
    font-family: var(--font-display);
    color: var(--line-strong);
    padding: 0 1rem;
    white-space: nowrap;
}

@keyframes ticker-scroll {
    from { transform: translateX(0); }
    to { transform: translateX(-50%); }
}

/* ==========================================================================
   How to get started — 3 steps
   ========================================================================== */
.howto-section {
    padding: 8vw 0;
    border-bottom: 1px solid var(--line);
}

.howto-steps {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    margin-top: 5rem;
    position: relative;
}

.howto-steps::after {
    content: '';
    position: absolute;
    top: 3rem;
    left: calc(100% / 6);
    right: calc(100% / 6);
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--gold-dim) 20%, var(--gold) 50%, var(--gold-dim) 80%, transparent);
    pointer-events: none;
}

.step-item {
    padding: 0 5vw;
    text-align: center;
    position: relative;
}

.step-dot-wrap {
    display: flex;
    justify-content: center;
    margin-bottom: 3rem;
    position: relative;
    z-index: 1;
}

.step-dot {
    width: 14px;
    height: 14px;
    background: var(--gold);
    border-radius: 50%;
    position: relative;
}

.step-dot::after {
    content: '';
    position: absolute;
    inset: -7px;
    border: 1px solid var(--gold-dim);
    border-radius: 50%;
}

.step-num {
    font-family: var(--font-display);
    font-size: clamp(4rem, 6vw, 7rem);
    font-weight: 300;
    color: transparent;
    -webkit-text-stroke: 1px rgba(179, 155, 117, 0.18);
    line-height: 1;
    margin-bottom: 1.5rem;
}

.step-title {
    font-size: 1.4rem;
    color: var(--text-100);
    margin-bottom: 1rem;
    font-weight: 400;
}

.step-desc {
    color: var(--text-300);
    font-size: 0.92rem;
    line-height: 1.8;
    max-width: 300px;
    margin: 0 auto;
}

/* ==========================================================================
   Feature comparison table
   ========================================================================== */
.comparison-section {
    padding: 8vw 0;
    border-bottom: 1px solid var(--line);
    background: var(--bg-surface);
}

.comparison-wrap {
    margin-top: 4rem;
    overflow-x: auto;
}

.comparison-table {
    width: 100%;
    border-collapse: collapse;
    min-width: 640px;
}

.comparison-table thead th {
    padding: 1.5rem 2rem;
    font-family: var(--font-display);
    font-size: 0.82rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    border-bottom: 2px solid var(--line);
    text-align: center;
    color: var(--text-300);
}

.comparison-table thead th:first-child {
    text-align: left;
    color: var(--text-400);
    font-size: 0.72rem;
    width: 32%;
}

.comparison-table thead th.col-highlight {
    color: var(--gold);
    border-bottom-color: var(--gold);
    background: rgba(179, 155, 117, 0.04);
}

.comparison-table tbody td {
    padding: 1.4rem 2rem;
    border-bottom: 1px solid var(--line);
    text-align: center;
    font-size: 0.88rem;
    color: var(--text-300);
}

.comparison-table tbody td:first-child {
    text-align: left;
    color: var(--text-200);
}

.comparison-table tbody td.col-highlight {
    background: rgba(179, 155, 117, 0.04);
}

.cmp-yes { color: var(--gold); font-size: 1rem; }
.cmp-partial { color: var(--text-400); font-size: 0.78rem; letter-spacing: 1px; }
.cmp-no { color: var(--text-400); opacity: 0.2; font-size: 1rem; }

/* ==========================================================================
   Ecosystem section
   ========================================================================== */
.ecosystem-section {
    padding: 8vw 0;
    border-bottom: 1px solid var(--line);
}

.eco-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2vw;
    margin-top: 4rem;
}

.eco-block {
    padding: 3rem;
    border: 1px solid var(--line);
    background: var(--bg-panel);
    transition: border-color 0.4s;
}

.eco-block:hover { border-color: var(--line-strong); }

.eco-block-title {
    font-family: var(--font-display);
    font-size: 0.72rem;
    letter-spacing: 3px;
    color: var(--gold);
    text-transform: uppercase;
    margin-bottom: 2rem;
    display: flex;
    align-items: center;
    gap: 12px;
}

.eco-block-title::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--line-strong);
}

.eco-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.eco-tag {
    padding: 0.5rem 1.2rem;
    border: 1px solid var(--line-strong);
    font-family: var(--font-display);
    font-size: 0.7rem;
    letter-spacing: 1.5px;
    color: var(--text-300);
    text-transform: uppercase;
    transition: all 0.3s;
}

.eco-tag:hover {
    border-color: var(--gold);
    color: var(--gold);
    background: var(--gold-dim);
}

/* ==========================================================================
   Testimonials section
   ========================================================================== */
.testimonials-section {
    padding: 8vw 0;
    border-bottom: 1px solid var(--line);
    background: var(--bg-surface);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2vw;
    margin-top: 4rem;
}

.testimonial-card {
    background: var(--bg-base);
    border: 1px solid var(--line);
    padding: 3.5rem 3rem;
    position: relative;
    transition: border-color 0.4s, transform 0.4s;
}

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

.t-quote-mark {
    font-family: var(--font-display);
    font-size: 5rem;
    color: var(--gold-dim);
    line-height: 0.7;
    margin-bottom: 2rem;
    display: block;
}

.t-text {
    color: var(--text-300);
    font-size: 0.95rem;
    line-height: 1.85;
    margin-bottom: 2.5rem;
}

.t-author {
    display: flex;
    align-items: center;
    gap: 1.2rem;
    border-top: 1px solid var(--line);
    padding-top: 1.5rem;
}

.t-avatar {
    width: 44px;
    height: 44px;
    background: var(--bg-panel);
    border: 1px solid var(--line-strong);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-display);
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--gold);
    flex-shrink: 0;
}

.t-name {
    font-size: 0.9rem;
    color: var(--text-200);
    margin-bottom: 4px;
}

.t-role {
    font-size: 0.72rem;
    color: var(--text-400);
    letter-spacing: 1px;
}

/* ==========================================================================
   Responsive — additional sections
   ========================================================================== */
@media (max-width: 1024px) {
    .howto-steps { grid-template-columns: 1fr; gap: 3rem; }
    .howto-steps::after { display: none; }
    .step-item { padding: 0 2rem; text-align: left; }
    .step-dot-wrap { justify-content: flex-start; }
    .step-desc { margin: 0; max-width: 100%; }
    .eco-grid { grid-template-columns: 1fr; gap: 2vw; }
    .testimonials-grid { grid-template-columns: 1fr; gap: 3vw; }
}

@media (max-width: 768px) {
    .comparison-table { font-size: 0.8rem; }
    .comparison-table thead th,
    .comparison-table tbody td { padding: 1rem; }
    .eco-grid { gap: 3vw; }
}