/* ============================================================
   OnchainProps — "Slate Calm" theme
   Muted modern-fintech restyle. Cool slate surfaces, a soft
   desaturated teal accent, gentle radii, one quiet shadow,
   generous breathing room. Variable-driven so the shadow-DOM
   components (FAQ accordion, feedback box) inherit the theme.
   ============================================================ */

:root {
    /* Surfaces */
    --bg-primary: #14161b;
    --bg-elev: #191c22;
    --bg-elev-2: #1e222a;
    --bg-card: #191c22;          /* consumed by shadow-DOM components */
    --bg-card-hover: #1e222a;

    /* Lines */
    --border-color: rgba(255, 255, 255, 0.07);
    --border-strong: rgba(255, 255, 255, 0.12);

    /* Accent — soft desaturated teal */
    --accent: #67d2b4;
    --accent-ink: #08110e;       /* text on accent fills */
    --accent-soft: rgba(103, 210, 180, 0.12);
    --accent-line: rgba(103, 210, 180, 0.30);

    /* Text */
    --text-primary: #e9ebef;
    --text-secondary: #9aa1ad;
    --text-faint: #6b7280;

    /* Radii */
    --radius-sm: 10px;
    --radius-md: 14px;
    --radius-lg: 18px;
    --radius-pill: 9999px;

    /* Misc */
    --shadow-soft: 0 12px 40px rgba(0, 0, 0, 0.28);
    --transition: all 0.22s cubic-bezier(0.4, 0, 0.2, 1);
    --nav-height: 73px;
    --maxw: 1120px;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: calc(var(--nav-height) + 16px);
}

body {
    font-family: 'Inter', sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    overflow-x: clip;
}

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

.container {
    width: 100%;
    max-width: var(--maxw);
    margin: 0 auto;
    padding: 0 clamp(1.1rem, 4vw, 1.75rem);
}

/* Typography */
h1, h2, h3, h4 {
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 600;
    line-height: 1.1;
    letter-spacing: -0.025em;
}

.accent-text {
    color: var(--accent);
}

/* Section header — left aligned, quiet */
.section-header {
    text-align: left;
    margin-bottom: 2.75rem;
    max-width: 720px;
}

.section-header h2 {
    font-size: clamp(1.7rem, 4vw, 2.4rem);
    margin-bottom: 0.9rem;
}

.section-header > p {
    color: var(--text-secondary);
    font-size: 1.08rem;
    max-width: 600px;
}

/* Update badge — quiet pill with a live dot */
.update-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-size: 0.8rem;
    font-weight: 500;
    letter-spacing: 0.01em;
    padding: 0.4rem 0.85rem;
    border-radius: var(--radius-pill);
    margin-bottom: 1.1rem;
}

.update-badge::before {
    content: '';
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--accent);
}

/* Quick answer — quiet inset block, not a loud green bar */
.quick-answer {
    background: var(--bg-elev);
    border: 1px solid var(--border-color);
    border-left: 2px solid var(--accent-line);
    padding: 1.15rem 1.35rem;
    border-radius: var(--radius-md);
    margin: 1.5rem 0;
    max-width: 680px;
    font-size: 0.96rem;
    line-height: 1.62;
    color: var(--text-secondary);
}

.quick-answer strong {
    color: var(--text-primary);
    font-weight: 600;
}

/* Layout */
.pillar-section {
    padding: clamp(3rem, 6vw, 5.5rem) 0;
    border-top: 1px solid var(--border-color);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.7rem 1.4rem;
    font-weight: 600;
    font-size: 0.95rem;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition);
    border: 1px solid transparent;
}

.btn-primary {
    background-color: var(--accent);
    color: var(--accent-ink);
}

.btn-primary:hover {
    background-color: #7adcc1;
    transform: translateY(-1px);
}

.btn-secondary {
    background: var(--bg-elev-2);
    border-color: var(--border-color);
    color: var(--text-primary);
}

.btn-secondary:hover {
    border-color: var(--border-strong);
    transform: translateY(-1px);
}

.btn-large {
    padding: 0.9rem 1.9rem;
    font-size: 1.05rem;
}

/* Navigation — floating rounded card on a solid slate bar */
.navbar {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--bg-primary);
    padding: 0.85rem 0 0.5rem;
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--bg-elev);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 0.7rem 0.8rem 0.7rem 1.25rem;
}

.logo {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.2rem;
    font-weight: 600;
    letter-spacing: -0.03em;
    display: inline-flex;
    align-items: center;
}

.logo::before {
    content: '';
    width: 9px;
    height: 9px;
    border-radius: 50%;
    background: var(--accent);
    margin-right: 0.6rem;
}

.nav-links {
    display: flex;
    gap: 1.85rem;
    list-style: none;
}

.nav-links a {
    color: var(--text-secondary);
    font-size: 0.92rem;
    font-weight: 500;
}

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

.btn-nav {
    padding: 0.6rem 1.15rem;
    font-size: 0.9rem;
}

.hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    min-width: 44px;
    min-height: 44px;
    align-items: center;
}

.hamburger span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: var(--transition);
}

.hamburger[aria-expanded="true"] span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}
.hamburger[aria-expanded="true"] span:nth-child(2) {
    opacity: 0;
}
.hamburger[aria-expanded="true"] span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

.mobile-nav {
    display: none;
    position: sticky;
    top: var(--nav-height);
    z-index: 99;
    background: rgba(20, 22, 27, 0.97);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 1.5rem 1.4rem;
}

.mobile-nav ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0;
}

.mobile-nav li a {
    display: block;
    color: var(--text-secondary);
    font-size: 1.02rem;
    font-weight: 500;
    padding: 0.85rem 0;
    border-bottom: 1px solid var(--border-color);
    transition: var(--transition);
}

.mobile-nav li:last-child a {
    border-bottom: none;
}

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

.mobile-nav .mobile-nav-cta {
    display: block;
    margin-top: 1.1rem;
    text-align: center;
    padding: 0.85rem 1.5rem;
    background-color: var(--accent);
    color: var(--accent-ink);
    font-weight: 600;
    font-size: 0.95rem;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.mobile-nav .mobile-nav-cta:hover {
    background-color: #7adcc1;
}

@media (max-width: 820px) {
    .nav-links, .btn-nav {
        display: none;
    }
    .hamburger {
        display: flex;
    }
    .mobile-nav.is-open {
        display: block;
    }
}

/* Hero — left aligned, calm */
.hero {
    padding: clamp(3.5rem, 8vw, 6.5rem) 0 clamp(3rem, 6vw, 5rem);
    text-align: left;
    position: relative;
}

.hero-content {
    max-width: 760px;
    margin: 0;
}

.pill-badge {
    display: inline-block;
    padding: 0.4rem 0.9rem;
    background: var(--accent-soft);
    border: 1px solid var(--accent-line);
    border-radius: var(--radius-pill);
    font-size: 0.82rem;
    font-weight: 600;
    letter-spacing: 0.01em;
    color: var(--accent);
    margin-bottom: 1.6rem;
}

.hero h1 {
    font-size: clamp(2.3rem, 6vw, 4rem);
    line-height: 1.05;
    margin-bottom: 1.3rem;
}

.hero .subtitle {
    font-size: clamp(1.02rem, 2vw, 1.2rem);
    color: var(--text-secondary);
    margin-bottom: 2.2rem;
    font-weight: 400;
    max-width: 580px;
}

.hero-actions {
    display: flex;
    gap: 0.85rem;
    justify-content: flex-start;
}

/* Comparison table */
.table-container {
    background: var(--bg-elev);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    overflow: hidden;
    overflow-x: auto;
    margin-bottom: 1rem;
    box-shadow: var(--shadow-soft);
}

.prop-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
}

.prop-table th {
    padding: 1.15rem 1.6rem;
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-faint);
    border-bottom: 1px solid var(--border-color);
    font-weight: 600;
}

.prop-table td {
    padding: 1.25rem 1.6rem;
    border-bottom: 1px solid var(--border-color);
    vertical-align: middle;
}

.prop-table tr:last-child td {
    border-bottom: none;
}

.prop-table tbody tr {
    transition: var(--transition);
}

.prop-table tbody tr:hover {
    background: var(--bg-card-hover);
}

.firm-name {
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 600;
    font-size: 1.1rem;
    letter-spacing: -0.01em;
}

.val-highlight {
    color: var(--text-primary);
    font-weight: 600;
    font-size: 1.02rem;
    font-variant-numeric: tabular-nums;
}

/* Article cards grid */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(320px, 100%), 1fr));
    gap: 1.1rem;
}

.cards-grid.two-cols {
    grid-template-columns: repeat(auto-fit, minmax(min(400px, 100%), 1fr));
}

.article-card {
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    background: var(--bg-elev);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1.85rem;
    color: var(--text-primary);
    transition: var(--transition);
}

.article-card:hover {
    border-color: var(--border-strong);
    transform: translateY(-3px);
    box-shadow: var(--shadow-soft);
}

.card-tag {
    display: inline-block;
    padding: 0.3rem 0.7rem;
    background: var(--accent-soft);
    border-radius: var(--radius-pill);
    font-size: 0.68rem;
    font-weight: 700;
    color: var(--accent);
    margin-bottom: 1.15rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    align-self: flex-start;
}

.article-card h3 {
    font-size: 1.22rem;
    margin-bottom: 0.7rem;
    line-height: 1.25;
}

.article-card p {
    color: var(--text-secondary);
    font-size: 0.93rem;
}

/* FAQ */
.faq-container {
    max-width: 760px;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
}

/* Footer */
footer {
    background: var(--bg-primary);
    border-top: 1px solid var(--border-color);
    padding: 4rem 0 2rem;
    margin-top: 4rem;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 3rem;
    flex-wrap: wrap;
    gap: 2.5rem;
}

.footer-brand {
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 600;
    font-size: 1.15rem;
    letter-spacing: -0.03em;
}

.footer-brand p {
    font-family: 'Inter', sans-serif;
    font-weight: 400;
    color: var(--text-secondary);
    margin-top: 0.6rem;
    max-width: 320px;
    font-size: 0.93rem;
}

.footer-links, .footer-socials {
    display: flex;
    gap: 1.5rem;
}

.footer-links a, .footer-socials a {
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.92rem;
}

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

.footer-bottom {
    border-top: 1px solid var(--border-color);
    padding-top: 2rem;
    text-align: center;
    color: var(--text-faint);
    font-size: 0.83rem;
}

.footer-disclaimer {
    margin-top: 0.75rem;
    max-width: 640px;
    margin-left: auto;
    margin-right: auto;
    font-size: 0.78rem;
    line-height: 1.5;
    color: var(--text-faint);
    opacity: 0.85;
}

/* Responsive */
@media (max-width: 768px) {
    .section-header {
        margin-bottom: 2rem;
    }
    .article-card {
        padding: 1.5rem;
    }
    .cards-grid {
        grid-template-columns: 1fr;
        gap: 0.9rem;
    }
    .cards-grid.two-cols {
        grid-template-columns: 1fr;
    }
}

/* Mobile: table → cards */
@media (max-width: 640px) {
    .hero-actions {
        flex-direction: column;
        align-items: stretch;
        gap: 0.75rem;
    }
    .hero-actions .btn {
        justify-content: center;
    }

    .table-container {
        background: transparent;
        border: none;
        box-shadow: none;
        overflow: visible;
        border-radius: 0;
        margin-bottom: 1rem;
    }
    .prop-table, .prop-table tbody {
        display: block;
    }
    .prop-table thead {
        display: none;
    }
    .prop-table tbody {
        display: flex;
        flex-direction: column;
        gap: 0.8rem;
    }
    .prop-table tbody tr {
        display: block;
        background: var(--bg-elev);
        border: 1px solid var(--border-color);
        border-radius: var(--radius-md);
        padding: 1.15rem 1.2rem 0.6rem;
    }
    .prop-table td {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 0.5rem 0;
        border-bottom: 1px solid var(--border-color);
    }
    .prop-table td:first-child {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.2rem;
        padding-bottom: 0.85rem;
        border-bottom: 1px solid var(--border-color);
    }
    .prop-table td:last-child {
        border-bottom: none;
        padding-top: 0.7rem;
    }
    .prop-table td[data-label]::before {
        content: attr(data-label);
        color: var(--text-faint);
        font-size: 0.68rem;
        font-weight: 600;
        text-transform: uppercase;
        letter-spacing: 0.07em;
        flex-shrink: 0;
        margin-right: 0.5rem;
    }
    .firm-name {
        font-size: 1.05rem;
    }
    .footer-content {
        flex-direction: column;
        gap: 1.75rem;
    }
    .footer-links {
        flex-wrap: wrap;
        gap: 1rem 1.4rem;
    }
    footer {
        padding: 3rem 0 1.5rem;
        margin-top: 2.5rem;
    }
}

@media (max-width: 380px) {
    .hero h1 {
        font-size: 2.05rem;
    }
    .article-card {
        padding: 1.2rem;
    }
}