/* Auction CMS — product marketing site (amber / navy) */
:root {
    --aus-navy: #0a1628;
    --aus-navy-dark: #050d18;
    --aus-navy-mid: #1a2d4a;
    --aus-navy-light: #2d4a6f;
    --aus-amber: #f59e0b;
    --aus-amber-hover: #d97706;
    --aus-amber-soft: #fbbf24;
    --aus-green: #10b981;
    --aus-gray-50: #f8fafc;
    --aus-gray-100: #f1f5f9;
    --aus-gray-200: #e2e8f0;
    --aus-gray-500: #64748b;
    --aus-gray-700: #334155;
    --aus-gray-900: #0f172a;
    --aus-white: #fff;
    --aus-radius: 8px;
    --aus-radius-lg: 16px;
    --aus-shadow: 0 4px 24px rgba(10, 22, 40, .1);
    --aus-shadow-lg: 0 20px 60px rgba(10, 22, 40, .2);
    --aus-font: 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
    --aus-max: 1180px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    font-family: var(--aus-font);
    font-size: 15px;
    color: var(--aus-gray-700);
    background: var(--aus-white);
    line-height: 1.6;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--aus-navy-light); text-decoration: none; }
a:hover { text-decoration: underline; }

.aus-container {
    max-width: var(--aus-max);
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
.aus-header {
    position: sticky;
    top: 0;
    z-index: 200;
    background: rgba(255,255,255,.94);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--aus-gray-200);
}
.aus-header-inner {
    max-width: var(--aus-max);
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    align-items: center;
    gap: 16px;
    min-height: 64px;
}
.aus-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--aus-navy);
    font-weight: 800;
    font-size: 18px;
    text-decoration: none;
    flex-shrink: 0;
}
.aus-logo:hover { text-decoration: none; }
.aus-logo-icon {
    width: 36px;
    height: 36px;
    background: var(--aus-navy);
    color: var(--aus-amber);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    font-weight: 900;
}
.aus-logo-text em {
    font-style: normal;
    color: var(--aus-gray-500);
    font-weight: 600;
    font-size: 14px;
}
.aus-nav {
    display: flex;
    gap: 24px;
    margin-left: 24px;
}
.aus-nav a {
    color: var(--aus-gray-700);
    font-size: 14px;
    font-weight: 500;
    text-decoration: none;
}
.aus-nav a:hover { color: var(--aus-navy); }
.aus-header-actions {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-left: auto;
    flex-shrink: 0;
}
.aus-header-tools {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
}
.aus-lang-dropdown { position: relative; }
.aus-lang-dropdown-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 12px;
    border: 1px solid var(--aus-gray-200);
    border-radius: var(--aus-radius);
    background: var(--aus-white);
    color: var(--aus-gray-700);
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    white-space: nowrap;
}
.aus-lang-dropdown-btn:hover { border-color: var(--aus-amber); color: var(--aus-navy); }
.aus-lang-dropdown-btn i { font-size: 10px; transition: transform .2s; }
.aus-lang-dropdown.is-open .aus-lang-dropdown-btn i { transform: rotate(180deg); }
.aus-lang-dropdown-menu {
    position: absolute;
    top: calc(100% + 6px);
    right: 0;
    min-width: 168px;
    list-style: none;
    margin: 0;
    padding: 6px;
    background: var(--aus-white);
    border-radius: 8px;
    box-shadow: var(--aus-shadow-lg);
    border: 1px solid var(--aus-gray-200);
    z-index: 300;
}
.aus-lang-dropdown-menu[hidden] { display: none !important; }
.aus-lang-dropdown-menu a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    color: var(--aus-gray-700);
    border-radius: 6px;
    text-decoration: none;
    font-size: 14px;
}
.aus-lang-dropdown-menu a:hover { background: var(--aus-gray-100); }
.aus-lang-dropdown-menu a.active {
    background: rgba(245, 158, 11, .12);
    color: var(--aus-navy);
    font-weight: 600;
}
.aus-overlay {
    position: fixed;
    inset: 0;
    background: rgba(10, 22, 40, .45);
    z-index: 150;
    opacity: 0;
    pointer-events: none;
    transition: opacity .25s;
}
.aus-overlay[hidden] { display: none !important; }
.aus-overlay.is-open { opacity: 1; pointer-events: auto; }
body.aus-nav-open { overflow: hidden; }
.aus-mobile-panel[hidden] { display: none !important; }
.aus-mobile-panel {
    background: var(--aus-white);
    border-top: 1px solid var(--aus-gray-200);
    box-shadow: var(--aus-shadow);
    padding: 16px 20px 20px;
}
.aus-nav-mobile {
    display: flex;
    flex-direction: column;
    gap: 4px;
    margin-bottom: 16px;
}
.aus-nav-mobile a {
    padding: 12px 0;
    color: var(--aus-gray-700);
    font-weight: 600;
    text-decoration: none;
    border-bottom: 1px solid var(--aus-gray-100);
}
.aus-mobile-actions {
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.aus-mobile-actions .aus-btn-primary,
.aus-mobile-actions .aus-btn-outline,
.aus-mobile-actions .aus-btn-ghost {
    justify-content: center;
    width: 100%;
}
.aus-btn-primary, .aus-btn-outline, .aus-btn-ghost {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 18px;
    border-radius: var(--aus-radius);
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: transform .15s, box-shadow .15s;
}
.aus-btn-primary {
    background: var(--aus-amber);
    color: var(--aus-navy-dark);
}
.aus-btn-primary:hover {
    background: var(--aus-amber-hover);
    text-decoration: none;
    transform: translateY(-1px);
    box-shadow: var(--aus-shadow);
}
.aus-btn-outline {
    background: var(--aus-white);
    color: var(--aus-navy);
    border: 2px solid var(--aus-navy);
}
.aus-btn-outline:hover {
    background: var(--aus-gray-50);
    text-decoration: none;
}
.aus-btn-ghost {
    background: transparent;
    color: var(--aus-gray-700);
    border: 1px solid var(--aus-gray-200);
}
.aus-btn-ghost:hover { background: var(--aus-gray-100); text-decoration: none; }
.aus-btn-lg { padding: 14px 24px; font-size: 15px; }
.aus-menu-toggle {
    display: none;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--aus-gray-100);
    border: 1px solid var(--aus-gray-200);
    border-radius: var(--aus-radius);
    font-size: 18px;
    color: var(--aus-navy);
    cursor: pointer;
    padding: 0;
}
.aus-menu-icon-close { display: none; }
.aus-header.nav-open .aus-menu-icon-open { display: none; }
.aus-header.nav-open .aus-menu-icon-close { display: block; }

/* Hero */
.aus-hero {
    position: relative;
    overflow: hidden;
    padding: 48px 0 64px;
    background: linear-gradient(135deg, var(--aus-navy-dark) 0%, var(--aus-navy) 45%, var(--aus-navy-mid) 100%);
    color: var(--aus-white);
}
.aus-hero-bg {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 15% 85%, rgba(245,158,11,.18) 0%, transparent 45%),
        radial-gradient(circle at 85% 15%, rgba(45,74,111,.4) 0%, transparent 40%);
    pointer-events: none;
}
.aus-hero-inner {
    position: relative;
    display: grid;
    grid-template-columns: 1fr 1.05fr;
    gap: 40px;
    align-items: center;
}
.aus-badge {
    display: inline-block;
    background: rgba(245,158,11,.15);
    color: var(--aus-amber-soft);
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: .3px;
    margin-bottom: 16px;
    border: 1px solid rgba(245,158,11,.35);
}
.aus-hero h1 {
    font-size: clamp(36px, 5vw, 56px);
    font-weight: 800;
    line-height: 1.1;
    margin: 0 0 16px;
    letter-spacing: -.02em;
}
.aus-hero-sub {
    font-size: 17px;
    opacity: .9;
    margin: 0 0 28px;
    max-width: 520px;
    line-height: 1.55;
}
.aus-hero-cta {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}
.aus-hero-cta .aus-btn-outline {
    border-color: rgba(255,255,255,.45);
    color: var(--aus-white);
    background: rgba(255,255,255,.08);
}
.aus-hero-cta .aus-btn-outline:hover { background: rgba(255,255,255,.16); }
.aus-hero-cta .aus-btn-ghost {
    border-color: rgba(255,255,255,.3);
    color: rgba(255,255,255,.9);
}
.aus-hero-cta .aus-btn-ghost:hover { background: rgba(255,255,255,.1); }
.aus-hero-preview {
    border-radius: var(--aus-radius-lg);
    overflow: hidden;
    box-shadow: var(--aus-shadow-lg);
    border: 2px solid rgba(245,158,11,.25);
}

/* Hero mockup */
.aus-mockup {
    background: rgba(255,255,255,.06);
    backdrop-filter: blur(8px);
}
.aus-mockup-header {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 14px 18px;
    border-bottom: 1px solid rgba(255,255,255,.1);
    background: rgba(0,0,0,.2);
}
.aus-mockup-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: rgba(255,255,255,.25);
}
.aus-mockup-dot:first-child { background: #ef4444; }
.aus-mockup-dot:nth-child(2) { background: var(--aus-amber); }
.aus-mockup-dot:nth-child(3) { background: var(--aus-green); }
.aus-mockup-title {
    margin-left: auto;
    font-size: 12px;
    font-weight: 600;
    color: rgba(255,255,255,.6);
    text-transform: uppercase;
    letter-spacing: .5px;
}
.aus-mockup-body { padding: 16px; display: flex; flex-direction: column; gap: 12px; }
.aus-mockup-lot {
    display: flex;
    gap: 14px;
    padding: 14px;
    border-radius: 10px;
    background: rgba(255,255,255,.05);
    border: 1px solid rgba(255,255,255,.08);
    transition: border-color .2s, background .2s;
}
.aus-mockup-lot.active {
    border-color: rgba(245,158,11,.5);
    background: rgba(245,158,11,.08);
}
.aus-mockup-thumb {
    width: 48px;
    height: 48px;
    border-radius: 10px;
    background: var(--aus-navy-mid);
    color: var(--aus-amber);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    flex-shrink: 0;
}
.aus-mockup-info {
    display: flex;
    flex-direction: column;
    gap: 4px;
    min-width: 0;
}
.aus-mockup-info strong {
    font-size: 14px;
    color: var(--aus-white);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.aus-mockup-bid {
    font-size: 15px;
    font-weight: 700;
    color: var(--aus-amber-soft);
}
.aus-mockup-time {
    font-size: 12px;
    color: rgba(255,255,255,.55);
}
.aus-mockup-time i { margin-right: 4px; }

/* Sections */
.aus-section { padding: 72px 0; }
.aus-section:nth-child(even) { background: var(--aus-gray-50); }
.aus-section-title {
    font-size: 32px;
    font-weight: 800;
    color: var(--aus-gray-900);
    margin: 0 0 12px;
    letter-spacing: -.02em;
}
.aus-intro h2 {
    font-size: 28px;
    font-weight: 700;
    color: var(--aus-gray-900);
    margin: 0 0 16px;
}
.aus-lead {
    font-size: 18px;
    color: var(--aus-gray-500);
    max-width: 820px;
    margin: 0;
    line-height: 1.7;
}
.aus-use-label {
    margin: 20px 0 12px;
    font-size: 13px;
    font-weight: 700;
    color: var(--aus-navy);
    text-transform: uppercase;
    letter-spacing: .4px;
}
.aus-usecases {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
    max-width: 960px;
}
.aus-usecase {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 14px;
    border-radius: 999px;
    background: var(--aus-gray-100);
    border: 1px solid var(--aus-gray-200);
    color: var(--aus-gray-700);
    font-size: 14px;
    font-weight: 600;
    min-height: 44px;
    text-align: center;
}
.aus-usecase-link {
    text-decoration: none;
    transition: border-color .2s, background .2s, color .2s, transform .2s;
}
.aus-usecase-link i { color: var(--aus-gold); font-size: 12px; flex-shrink: 0; }
.aus-usecase-link:hover {
    border-color: var(--aus-gold);
    background: rgba(245, 158, 11, .1);
    color: var(--aus-navy);
    transform: translateY(-1px);
}
.aus-use-more { margin-top: 14px; font-size: 14px; font-weight: 600; }
.aus-use-more a { color: var(--aus-gold); text-decoration: none; }
.aus-use-more a:hover { text-decoration: underline; }
@media (min-width: 768px) {
    .aus-usecases { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}
@media (max-width: 480px) {
    .aus-usecases { grid-template-columns: 1fr; }
}

/* Features */
.aus-features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 40px;
}
.aus-feature-card {
    background: var(--aus-white);
    border: 1px solid var(--aus-gray-200);
    border-radius: var(--aus-radius-lg);
    padding: 28px;
    transition: box-shadow .2s, transform .2s;
}
.aus-section:nth-child(even) .aus-feature-card { background: var(--aus-white); }
.aus-feature-card:hover {
    box-shadow: var(--aus-shadow);
    transform: translateY(-2px);
}
.aus-feature-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--aus-navy), var(--aus-navy-light));
    color: var(--aus-amber);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    margin-bottom: 16px;
}
.aus-feature-card h3 {
    font-size: 17px;
    font-weight: 700;
    color: var(--aus-gray-900);
    margin: 0 0 8px;
}
.aus-feature-card p {
    font-size: 14px;
    color: var(--aus-gray-500);
    margin: 0;
    line-height: 1.55;
}

/* Tech */
.aus-tech-layout {
    display: grid;
    grid-template-columns: 1fr 1.1fr;
    gap: 48px;
    align-items: center;
}
.aus-tech-list {
    list-style: none;
    padding: 0;
    margin: 32px 0 0;
}
.aus-tech-list li {
    display: flex;
    gap: 12px;
    align-items: flex-start;
    padding: 12px 0;
    border-bottom: 1px solid var(--aus-gray-200);
    font-size: 15px;
}
.aus-tech-list li:last-child { border-bottom: none; }
.aus-tech-list i {
    color: var(--aus-green);
    margin-top: 3px;
    flex-shrink: 0;
}
.aus-tech-panel {
    background: var(--aus-navy);
    color: var(--aus-white);
    border-radius: var(--aus-radius-lg);
    overflow: hidden;
    box-shadow: var(--aus-shadow-lg);
    border: 1px solid rgba(245,158,11,.2);
}
.aus-tech-panel-head {
    padding: 16px 20px;
    background: var(--aus-navy-dark);
    font-family: 'Consolas', monospace;
    font-size: 14px;
    color: var(--aus-amber);
    border-bottom: 1px solid rgba(255,255,255,.08);
}
.aus-tech-panel-head i { margin-right: 8px; opacity: .7; }
.aus-tech-panel-list {
    list-style: none;
    margin: 0;
    padding: 12px 0;
}
.aus-tech-panel-list li {
    display: flex;
    justify-content: space-between;
    padding: 12px 20px;
    font-family: 'Consolas', monospace;
    font-size: 13px;
    border-bottom: 1px solid rgba(255,255,255,.06);
}
.aus-tech-panel-list li:last-child { border-bottom: none; }
.aus-tech-panel-list em {
    font-style: normal;
    color: rgba(245,158,11,.85);
    font-size: 12px;
}

/* Demo */
.aus-demo-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 28px;
    margin-top: 40px;
}
.aus-demo-card {
    background: var(--aus-white);
    border: 1px solid var(--aus-gray-200);
    border-radius: var(--aus-radius-lg);
    padding: 32px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.aus-demo-icon {
    width: 56px;
    height: 56px;
    background: var(--aus-navy);
    color: var(--aus-amber);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
}
.aus-demo-icon.admin { background: var(--aus-navy-dark); }
.aus-demo-card h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--aus-gray-900);
    margin: 0;
}
.aus-demo-card p {
    color: var(--aus-gray-500);
    margin: 0;
    flex: 1;
}
.aus-creds {
    display: inline-block;
    background: var(--aus-gray-100);
    padding: 8px 14px;
    border-radius: 6px;
    font-size: 13px;
    color: var(--aus-gray-700);
    font-family: 'Consolas', monospace;
}
.aus-demo-card .aus-btn-primary,
.aus-demo-card .aus-btn-outline {
    align-self: flex-start;
    margin-top: 8px;
}

/* CTA band */
.aus-cta-band {
    background: linear-gradient(135deg, var(--aus-navy) 0%, var(--aus-navy-mid) 100%);
    color: var(--aus-white);
    padding: 72px 0;
    text-align: center;
}
.aus-cta-band h2 {
    font-size: 28px;
    font-weight: 800;
    margin: 0 0 12px;
}
.aus-cta-band p {
    font-size: 16px;
    opacity: .9;
    max-width: 640px;
    margin: 0 auto 28px;
}
.aus-cta-band .aus-btn-primary {
    background: var(--aus-amber);
    color: var(--aus-navy-dark);
}
.aus-cta-band .aus-btn-primary:hover { background: var(--aus-amber-hover); }

/* Footer */
.aus-footer {
    background: var(--aus-navy-dark);
    color: rgba(255,255,255,.75);
    padding: 56px 0 24px;
}
.aus-footer-inner {
    max-width: var(--aus-max);
    margin: 0 auto;
    padding: 0 20px;
}
.aus-footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 32px;
    margin-bottom: 40px;
}
.aus-footer-brand .aus-logo { color: var(--aus-white); margin-bottom: 16px; }
.aus-footer-brand p {
    font-size: 13px;
    line-height: 1.6;
    margin: 0;
    opacity: .7;
}
.aus-footer h4 {
    color: var(--aus-white);
    font-size: 14px;
    font-weight: 700;
    margin: 0 0 16px;
    text-transform: uppercase;
    letter-spacing: .5px;
}
.aus-footer ul {
    list-style: none;
    padding: 0;
    margin: 0;
}
.aus-footer li { margin-bottom: 8px; }
.aus-footer a {
    color: rgba(255,255,255,.7);
    font-size: 13px;
    text-decoration: none;
}
.aus-footer a:hover { color: var(--aus-amber); }
.aus-footer-bottom {
    border-top: 1px solid rgba(255,255,255,.1);
    padding-top: 24px;
    font-size: 13px;
    opacity: .6;
    text-align: center;
}

/* Responsive */
@media (max-width: 1024px) {
    .aus-hero-inner { grid-template-columns: 1fr; }
    .aus-hero-preview { order: -1; max-width: 560px; }
    .aus-features-grid { grid-template-columns: repeat(2, 1fr); }
    .aus-tech-layout { grid-template-columns: 1fr; }
    .aus-footer-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
    .aus-nav { display: none; }
    .aus-header-actions { display: none; }
    .aus-header-tools { margin-left: auto; }
    .aus-menu-toggle { display: inline-flex; }
    .aus-header-inner { flex-wrap: nowrap; }
    .aus-logo { margin-right: auto; }
    .aus-features-grid,
    .aus-demo-grid { grid-template-columns: 1fr; }
    .aus-hero-cta { flex-direction: column; }
    .aus-hero-cta a { width: 100%; justify-content: center; }
    .aus-footer-grid { grid-template-columns: 1fr; }
    .aus-section { padding: 48px 0; }
}