/* =========================================================
   FanChain Design System
   ========================================================= */
:root {
    --navy:         #001F33;
    --navy-mid:     #002B45;
    --navy-light:   #003859;
    --orange:       #D6A400;
    --orange-light: #F6C433;
    --gold:         #F6C433;
    --electric:     #29AEDD;
    --white:        #FFFFFF;
    --off-white:    #F8F6F1;
    --gray-100:     #F0F2F5;
    --gray-200:     #E2E6EA;
    --gray-400:     #9BA3AF;
    --gray-600:     #4B5563;
    --gray-800:     #1D1D1F;
    --text:         #1D1D1F;

    --font-head: 'Montserrat', system-ui, sans-serif;
    --font-body: 'Inter', system-ui, sans-serif;

    --radius-sm: 6px;
    --radius:    12px;
    --radius-lg: 20px;

    --shadow:    0 4px 16px rgba(0,0,0,.12);
    --shadow-lg: 0 12px 40px rgba(0,0,0,.18);

    --transition: 220ms ease;
    --container:  1140px;
    --header-h:   72px;
}

/* ---- Reset ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--text);
    background: var(--white);
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font: inherit; }

/* ---- Skip link ---- */
.skip-link {
    position: absolute;
    top: -100px;
    left: 1rem;
    background: var(--orange);
    color: #fff;
    padding: .5rem 1rem;
    border-radius: var(--radius-sm);
    font-weight: 600;
    z-index: 9999;
    transition: top var(--transition);
}
.skip-link:focus { top: 1rem; }

/* ---- Container ---- */
.container {
    width: 100%;
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* =========================================================
   Header / Nav
   ========================================================= */
.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: var(--navy);
    height: var(--header-h);
    display: flex;
    align-items: center;
    transition: box-shadow var(--transition);
}
.site-header.scrolled { box-shadow: 0 2px 20px rgba(0,0,0,.35); }

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

.nav-brand {
    line-height: 1;
    display: flex;
    align-items: center;
}
.nav-logo {
    height: 44px;
    width: auto;
    display: block;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 2rem;
}
.nav-link {
    font-family: var(--font-head);
    font-size: .95rem;
    font-weight: 600;
    color: rgba(255,255,255,.80);
    letter-spacing: .02em;
    text-transform: uppercase;
    transition: color var(--transition);
    position: relative;
}
.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px; left: 0; right: 0;
    height: 2px;
    background: var(--orange);
    transform: scaleX(0);
    transition: transform var(--transition);
}
.nav-link:hover, .nav-link.active { color: var(--white); }
.nav-link:hover::after, .nav-link.active::after { transform: scaleX(1); }

.nav-link.nav-cta {
    background: var(--orange);
    color: #fff;
    padding: .5rem 1.25rem;
    border-radius: var(--radius-sm);
    transition: background var(--transition), transform var(--transition);
}
.nav-link.nav-cta::after { display: none; }
.nav-link.nav-cta:hover { background: var(--orange-light); transform: translateY(-1px); }

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 6px;
}
.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--white);
    border-radius: 2px;
    transition: transform var(--transition), opacity var(--transition);
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 860px) {
    .nav-toggle { display: flex; }
    .nav-menu {
        position: fixed;
        inset: var(--header-h) 0 0 0;
        background: var(--navy);
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        transform: translateX(100%);
        transition: transform var(--transition);
        z-index: 999;
    }
    .nav-menu.open { transform: translateX(0); }
    .nav-links { flex-direction: column; gap: 2rem; text-align: center; }
    .nav-link { font-size: 1.3rem; }
    .nav-link.nav-cta { padding: .75rem 2rem; font-size: 1.1rem; }
}

/* =========================================================
   Hero
   ========================================================= */
.hero {
    background: var(--navy);
    color: var(--white);
    padding: 3rem 0 5rem;
    position: relative;
    overflow: hidden;
}
.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse 60% 60% at 80% 50%, rgba(232,92,26,.18) 0%, transparent 70%),
        radial-gradient(ellipse 40% 40% at 10% 80%, rgba(245,165,35,.10) 0%, transparent 60%);
    pointer-events: none;
}
.hero .container { position: relative; }

.hero-eyebrow {
    display: inline-block;
    font-family: var(--font-head);
    font-size: .8rem;
    font-weight: 700;
    letter-spacing: .12em;
    text-transform: uppercase;
    color: var(--orange);
    border: 1px solid rgba(232,92,26,.4);
    padding: .35rem .9rem;
    border-radius: 100px;
    margin-bottom: 1.5rem;
}
.hero h1 {
    font-family: var(--font-head);
    font-size: clamp(2.8rem, 6vw, 5rem);
    font-weight: 900;
    line-height: 1.05;
    letter-spacing: -.02em;
    max-width: 780px;
    margin-bottom: 1.25rem;
}
.hero h1 .accent { color: var(--orange); }
.hero-sub {
    font-size: 1.15rem;
    color: rgba(255,255,255,.75);
    max-width: 580px;
    margin-bottom: 2.5rem;
    line-height: 1.7;
}
.hero-actions { display: flex; gap: 1rem; flex-wrap: wrap; }

/* =========================================================
   Buttons
   ========================================================= */
.btn {
    display: inline-flex;
    align-items: center;
    gap: .5rem;
    font-family: var(--font-head);
    font-size: .95rem;
    font-weight: 700;
    letter-spacing: .03em;
    text-transform: uppercase;
    padding: .85rem 2rem;
    border-radius: var(--radius-sm);
    transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
    cursor: pointer;
}
.btn:hover { transform: translateY(-2px); }

.btn-primary {
    background: var(--orange);
    color: #fff;
    box-shadow: 0 4px 18px rgba(232,92,26,.35);
}
.btn-primary:hover { background: var(--orange-light); box-shadow: 0 6px 24px rgba(232,92,26,.45); }

.btn-outline {
    background: transparent;
    color: var(--white);
    border: 2px solid rgba(255,255,255,.4);
}
.btn-outline:hover { border-color: var(--white); background: rgba(255,255,255,.08); }

.btn-outline-dark {
    background: transparent;
    color: var(--navy);
    border: 2px solid var(--navy);
}
.btn-outline-dark:hover { background: var(--navy); color: #fff; }

.btn-gold {
    background: var(--gold);
    color: var(--navy);
    box-shadow: 0 4px 18px rgba(245,165,35,.35);
}
.btn-gold:hover { filter: brightness(1.06); }

/* =========================================================
   Stat Bar
   ========================================================= */
.stat-bar {
    background: var(--orange);
    padding: 1.5rem 0;
}
.stat-bar .container {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
    text-align: center;
}
.stat-value {
    font-family: var(--font-head);
    font-size: 1.9rem;
    font-weight: 900;
    color: var(--white);
    line-height: 1;
}
.stat-label {
    font-size: .8rem;
    font-weight: 600;
    color: rgba(255,255,255,.85);
    text-transform: uppercase;
    letter-spacing: .06em;
    margin-top: .25rem;
}
@media (max-width: 680px) {
    .stat-bar .container { grid-template-columns: repeat(2, 1fr); }
}

/* =========================================================
   Sections
   ========================================================= */
.section      { padding: 5rem 0; }
.section-dark { background: var(--navy); color: var(--white); }
.section-gray { background: var(--off-white); }
.section-mid  { background: var(--navy-mid); color: var(--white); }

.section-label {
    font-family: var(--font-head);
    font-size: .78rem;
    font-weight: 700;
    letter-spacing: .12em;
    text-transform: uppercase;
    color: var(--orange);
    margin-bottom: .75rem;
}
.section-dark .section-label,
.section-mid  .section-label { color: var(--gold); }

.section-title {
    font-family: var(--font-head);
    font-size: clamp(1.9rem, 4vw, 2.8rem);
    font-weight: 900;
    line-height: 1.1;
    letter-spacing: -.02em;
    margin-bottom: 1rem;
}
.section-sub {
    font-size: 1.05rem;
    color: var(--gray-600);
    max-width: 600px;
    line-height: 1.7;
    margin-bottom: 2.5rem;
}
.section-dark .section-sub,
.section-mid  .section-sub { color: rgba(255,255,255,.7); }

.text-center { text-align: center; }
.text-center .section-sub { margin-left: auto; margin-right: auto; }

/* =========================================================
   Cards
   ========================================================= */
.card-grid   { display: grid; gap: 1.5rem; }
.card-grid-2 { grid-template-columns: repeat(2, 1fr); }
.card-grid-3 { grid-template-columns: repeat(3, 1fr); }
.card-grid-4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 960px) {
    .card-grid-3, .card-grid-4 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
    .card-grid-2, .card-grid-3, .card-grid-4 { grid-template-columns: 1fr; }
}

.card {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius);
    padding: 2rem;
    transition: transform var(--transition), box-shadow var(--transition);
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }

.card-dark {
    background: var(--navy-mid);
    border-color: rgba(255,255,255,.08);
    color: var(--white);
}
.card-icon {
    width: 52px;
    height: 52px;
    background: rgba(232,92,26,.12);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.25rem;
    font-size: 1.5rem;
}
.card-dark .card-icon { background: rgba(232,92,26,.20); }

.card h3 {
    font-family: var(--font-head);
    font-size: 1.15rem;
    font-weight: 800;
    margin-bottom: .6rem;
    letter-spacing: -.01em;
}
.card p { font-size: .95rem; color: var(--gray-600); line-height: 1.65; }
.card-dark p { color: rgba(255,255,255,.65); }

/* =========================================================
   Steps
   ========================================================= */
.steps { display: flex; flex-direction: column; }
.step {
    display: grid;
    grid-template-columns: 64px 1fr;
    gap: 1.5rem;
    padding: 2rem 0;
    border-bottom: 1px solid var(--gray-200);
}
.step:last-child { border-bottom: none; }
.step-num {
    font-family: var(--font-head);
    font-size: 2.5rem;
    font-weight: 900;
    color: var(--orange);
    line-height: 1;
    padding-top: .2rem;
}
.step h3 {
    font-family: var(--font-head);
    font-size: 1.2rem;
    font-weight: 800;
    margin-bottom: .4rem;
}
.step p { font-size: .95rem; color: var(--gray-600); }

/* =========================================================
   Feature Split
   ========================================================= */
.feature-split {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}
.feature-split.reverse { direction: rtl; }
.feature-split.reverse > * { direction: ltr; }

@media (max-width: 760px) {
    .feature-split, .feature-split.reverse { grid-template-columns: 1fr; direction: ltr; }
}

.feature-visual {
    background: linear-gradient(135deg, var(--navy-mid) 0%, var(--navy-light) 100%);
    border-radius: var(--radius-lg);
    padding: 3rem 2rem;
    text-align: center;
    min-height: 280px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 1rem;
}
.feature-visual .big-icon { font-size: 4rem; line-height: 1; }
.feature-visual p { color: rgba(255,255,255,.7); font-size: .9rem; max-width: 240px; }

/* =========================================================
   Token Cards
   ========================================================= */
.token-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.25rem;
}
@media (max-width: 600px) { .token-grid { grid-template-columns: 1fr; } }

.token-card {
    border-radius: var(--radius);
    padding: 1.75rem;
    border-left: 4px solid;
}
.token-card.orange { background: rgba(232,92,26,.08); border-color: var(--orange); }
.token-card.gold   { background: rgba(245,165,35,.08); border-color: var(--gold); }
.token-card.blue   { background: rgba(30,90,160,.08);  border-color: #1E5AA0; }
.token-card.green  { background: rgba(16,160,90,.08);  border-color: #10A05A; }

.token-card h4 {
    font-family: var(--font-head);
    font-size: 1rem;
    font-weight: 800;
    margin-bottom: .5rem;
    text-transform: uppercase;
    letter-spacing: .03em;
}
.token-card p { font-size: .88rem; color: var(--gray-600); line-height: 1.6; }

/* =========================================================
   CTA Band
   ========================================================= */
.cta-band {
    background: linear-gradient(135deg, var(--navy) 0%, var(--navy-light) 100%);
    color: var(--white);
    padding: 5rem 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}
.cta-band::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse 60% 80% at 50% 100%, rgba(232,92,26,.25) 0%, transparent 70%);
    pointer-events: none;
}
.cta-band .container { position: relative; }
.cta-band h2 {
    font-family: var(--font-head);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 900;
    margin-bottom: 1rem;
}
.cta-band p {
    color: rgba(255,255,255,.72);
    font-size: 1.05rem;
    max-width: 520px;
    margin: 0 auto 2rem;
    line-height: 1.7;
}
.cta-band .btn-group { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }

/* =========================================================
   Contact Tabs
   ========================================================= */
.tab-bar {
    display: flex;
    gap: .5rem;
    border-bottom: 2px solid var(--gray-200);
    margin-bottom: 2rem;
    flex-wrap: wrap;
}
.tab-btn {
    font-family: var(--font-head);
    font-size: .9rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .05em;
    padding: .75rem 1.5rem;
    color: var(--gray-600);
    border-bottom: 3px solid transparent;
    margin-bottom: -2px;
    transition: color var(--transition), border-color var(--transition);
}
.tab-btn.active, .tab-btn:hover { color: var(--orange); }
.tab-btn.active { border-bottom-color: var(--orange); }
.tab-panel { display: none; }
.tab-panel.active { display: block; }

/* =========================================================
   Form
   ========================================================= */
.form-group { margin-bottom: 1.25rem; }
.form-group label {
    display: block;
    font-size: .85rem;
    font-weight: 600;
    color: var(--gray-800);
    margin-bottom: .4rem;
    text-transform: uppercase;
    letter-spacing: .04em;
}
.form-control {
    display: block;
    width: 100%;
    padding: .75rem 1rem;
    font-family: var(--font-body);
    font-size: .95rem;
    color: var(--text);
    background: var(--white);
    border: 1.5px solid var(--gray-200);
    border-radius: var(--radius-sm);
    transition: border-color var(--transition), box-shadow var(--transition);
    outline: none;
}
.form-control:focus {
    border-color: var(--orange);
    box-shadow: 0 0 0 3px rgba(232,92,26,.12);
}
textarea.form-control { min-height: 130px; resize: vertical; }
select.form-control { appearance: none; }

/* =========================================================
   Page Hero (sub-pages)
   ========================================================= */
.page-hero {
    background: var(--navy);
    color: var(--white);
    padding: 4.5rem 0 3.5rem;
}
.page-hero h1 {
    font-family: var(--font-head);
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 1rem;
}
.page-hero p {
    font-size: 1.1rem;
    color: rgba(255,255,255,.72);
    max-width: 580px;
    line-height: 1.7;
}

/* =========================================================
   Investor Cards
   ========================================================= */
.invest-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-bottom: 3rem;
}
@media (max-width: 760px) { .invest-grid { grid-template-columns: 1fr; } }

.invest-card {
    background: var(--navy-mid);
    border-radius: var(--radius);
    padding: 2rem;
    color: var(--white);
    border-top: 4px solid var(--orange);
}
.invest-card h3 {
    font-family: var(--font-head);
    font-size: 1.1rem;
    font-weight: 800;
    margin-bottom: .75rem;
    text-transform: uppercase;
    letter-spacing: .03em;
}
.invest-card ul { display: flex; flex-direction: column; gap: .5rem; }
.invest-card li {
    font-size: .9rem;
    color: rgba(255,255,255,.72);
    padding-left: 1.25rem;
    position: relative;
}
.invest-card li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--orange);
}

/* =========================================================
   Checklist
   ========================================================= */
.checklist { display: flex; flex-direction: column; gap: .75rem; margin: 1.5rem 0; }
.checklist li {
    display: flex;
    gap: .75rem;
    font-size: .95rem;
    align-items: flex-start;
    line-height: 1.5;
}
.checklist li > div { flex: 1; min-width: 0; }
.checklist li::before {
    content: '✓';
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 22px;
    height: 22px;
    min-width: 22px;
    background: var(--orange);
    color: #fff;
    font-size: .75rem;
    font-weight: 800;
    border-radius: 50%;
    margin-top: 1px;
}

/* =========================================================
   Revenue Table
   ========================================================= */
.revenue-table { width: 100%; border-collapse: collapse; }
.revenue-table th, .revenue-table td {
    text-align: left;
    padding: .9rem 1rem;
    border-bottom: 1px solid rgba(255,255,255,.08);
    font-size: .9rem;
}
.revenue-table th {
    font-family: var(--font-head);
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: .05em;
    color: var(--gold);
    font-size: .78rem;
}
.revenue-table td { color: rgba(255,255,255,.78); }
.revenue-table tr:last-child td { border-bottom: none; }

/* =========================================================
   Fade-in animation
   ========================================================= */
.fade-in {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity .55s ease, transform .55s ease;
}
.fade-in.visible { opacity: 1; transform: none; }

/* =========================================================
   Footer
   ========================================================= */
.site-footer {
    background: var(--navy);
    color: rgba(255,255,255,.65);
    padding: 4rem 0 2rem;
}
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}
@media (max-width: 860px) { .footer-grid { grid-template-columns: 1fr 1fr; gap: 2rem; } }
@media (max-width: 480px) { .footer-grid { grid-template-columns: 1fr; } }

.footer-logo {
    margin-bottom: 1rem;
}
.footer-logo-img {
    height: 40px;
    width: auto;
    display: block;
    opacity: .85;
}
.footer-brand p {
    font-size: .9rem;
    line-height: 1.7;
    max-width: 300px;
    margin-bottom: .75rem;
}
.footer-contact a {
    color: rgba(255,255,255,.6);
    font-size: .9rem;
    transition: color var(--transition);
    line-height: 1.8;
    display: block;
}
.footer-contact a:hover { color: var(--orange); }

.footer-links h4 {
    font-family: var(--font-head);
    font-size: .78rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: .1em;
    color: var(--white);
    margin-bottom: 1rem;
}
.footer-links ul { display: flex; flex-direction: column; gap: .6rem; }
.footer-links a { font-size: .9rem; color: rgba(255,255,255,.55); transition: color var(--transition); }
.footer-links a:hover { color: var(--orange); }

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,.08);
    padding-top: 1.5rem;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: .5rem;
    font-size: .85rem;
}

/* =========================================================
   Utilities
   ========================================================= */
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }
.alert {
    padding: 1rem 1.25rem;
    border-radius: var(--radius-sm);
    font-size: .95rem;
    margin-bottom: 1.25rem;
}
.alert-success { background: rgba(16,160,90,.1); color: #0c7a45; border: 1px solid rgba(16,160,90,.25); }
.alert-error   { background: rgba(220,38,38,.1);  color: #b91c1c; border: 1px solid rgba(220,38,38,.25); }