/* ---------------------------------------------------------------------------
 * BJJ.onl landing page — global styles.
 * Design language: near-black ink sections alternating with a light paper
 * background, crimson accent, Archivo for display type, Inter for body,
 * Space Mono for small uppercase mono labels.
 * ------------------------------------------------------------------------- */

:root {
    --ink: #0E0E10;
    --ink-soft: #17151A;
    --paper: #FBF7F1;
    --paper-soft: #F2ECE1;
    --card: #FFFFFF;
    --blush: #FDF2F2;
    --crimson: #B6133A;
    --crimson-bright: #F24E74;
    --ink-text: #EDEAE4;
    --ink-text-dim: #A9A3B0;
    --paper-text: #1B1720;
    --paper-text-dim: #5C5566;
    --border-on-ink: rgba(237, 234, 228, 0.12);
    --border-on-paper: rgba(27, 23, 32, 0.10);

    --font-display: 'Archivo', 'Inter', sans-serif;
    --font-body: 'Inter', sans-serif;
    --font-mono: 'Space Mono', monospace;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: var(--font-body);
    background: var(--paper);
    color: var(--paper-text);
    -webkit-font-smoothing: antialiased;
}

img, svg {
    display: block;
    max-width: 100%;
}

a {
    color: inherit;
}

button {
    font-family: inherit;
}

.wrap {
    max-width: 1160px;
    margin: 0 auto;
    padding: 0 28px;
}

.eyebrow {
    font-family: var(--font-mono);
    font-size: 12.5px;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    font-weight: 700;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.eyebrow::before {
    content: '';
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--crimson);
    display: inline-block;
}

section.on-ink {
    background: var(--ink);
    color: var(--ink-text);
}

section.on-paper {
    background: var(--paper);
    color: var(--paper-text);
}

.btn {
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 15px;
    border-radius: 10px;
    padding: 13px 24px;
    border: 1px solid transparent;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: transform 0.15s ease, background 0.15s ease, border-color 0.15s ease, opacity 0.15s ease;
    text-decoration: none;
    line-height: 1;
}

.btn:active {
    transform: translateY(1px);
}

.btn-primary {
    background: var(--crimson);
    color: #fff;
}

.btn-primary:hover {
    background: var(--crimson-bright);
}

.btn-ghost-on-ink {
    background: transparent;
    border-color: var(--border-on-ink);
    color: var(--ink-text);
}

.btn-ghost-on-ink:hover {
    border-color: rgba(237, 234, 228, 0.32);
}

.btn-ghost-on-paper {
    background: transparent;
    border-color: var(--border-on-paper);
    color: var(--paper-text);
}

.btn-ghost-on-paper:hover {
    border-color: rgba(27, 23, 32, 0.24);
}

/* Reveal-on-scroll (IntersectionObserver toggles .is-visible) */
.reveal {
    opacity: 0;
    transform: translateY(18px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.is-visible {
    opacity: 1;
    transform: none;
}

@media (prefers-reduced-motion: reduce) {
    .reveal {
        opacity: 1;
        transform: none;
        transition: none;
    }
}

/* -----------------------------------------------------------------------
 * Brand mark
 * --------------------------------------------------------------------- */

.brand-mark {
    display: inline-flex;
    align-items: center;
    gap: 9px;
}

.brand-badge {
    display: inline-block;
    width: 28px;
    height: 28px;
    border-radius: 7px;
    object-fit: cover;
    flex-shrink: 0;
}

.brand-word {
    font-family: var(--font-display);
    font-weight: 800;
    font-size: 19px;
    letter-spacing: -0.01em;
}

.brand-accent {
    color: var(--crimson);
}

.brand-mark.small .brand-badge {
    width: 22px;
    height: 22px;
    border-radius: 6px;
}

.brand-mark.small .brand-word {
    font-size: 16.5px;
}

/* -----------------------------------------------------------------------
 * Sticky nav
 * --------------------------------------------------------------------- */

.nav {
    position: sticky;
    top: 0;
    z-index: 40;
    background: rgba(14, 14, 16, 0.86);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-on-ink);
}

.nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    height: 68px;
}

.nav-brand {
    display: inline-flex;
    color: var(--ink-text);
    text-decoration: none;
}

.nav-cta {
    padding: 10px 18px;
    font-size: 14px;
    flex-shrink: 0;
}

/* -----------------------------------------------------------------------
 * Hero
 * --------------------------------------------------------------------- */

.hero {
    padding: 88px 0 110px;
    overflow: hidden;
    position: relative;
}

.hero::before {
    content: '';
    position: absolute;
    top: -120px;
    right: -160px;
    width: 480px;
    height: 480px;
    background: radial-gradient(circle, rgba(242, 78, 116, 0.22), transparent 70%);
    pointer-events: none;
}

.hero-inner {
    display: grid;
    grid-template-columns: 1.05fr 0.95fr;
    gap: 56px;
    align-items: center;
    position: relative;
}

.hero-eyebrow {
    color: var(--crimson);
    margin: 0 0 20px;
}

.hero-title {
    font-family: var(--font-display);
    font-weight: 800;
    font-size: clamp(38px, 4.6vw, 58px);
    line-height: 1.06;
    letter-spacing: -0.015em;
    margin: 0 0 22px;
}

.hero-title .accent {
    color: var(--crimson);
}

.hero-sub {
    font-size: 17px;
    line-height: 1.65;
    color: var(--ink-text-dim);
    max-width: 480px;
    margin: 0 0 32px;
}

.hero-actions {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
}

.hero-note {
    margin: 20px 0 0;
    font-size: 13.5px;
    color: var(--ink-text-dim);
}

.hero-panel-wrap {
    position: relative;
}

.hero-panel {
    background: #fff;
    color: var(--paper-text);
    border-radius: 20px;
    padding: 26px;
    box-shadow: 0 40px 80px -30px rgba(0, 0, 0, 0.6), 0 0 0 1px rgba(255, 255, 255, 0.04);
    transform: rotate(-1.1deg);
}

.panel-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 10px;
    padding-bottom: 18px;
    margin-bottom: 18px;
    border-bottom: 1px solid var(--border-on-paper);
}

.panel-athlete {
    display: flex;
    align-items: center;
    gap: 14px;
}

.panel-avatar {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--crimson);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 15px;
    flex-shrink: 0;
}

.panel-name {
    margin: 0 0 3px;
    font-weight: 700;
    font-size: 15.5px;
}

.panel-tag {
    font-family: var(--font-mono);
    font-size: 10.5px;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--crimson);
    background: var(--blush);
    border: 1px solid rgba(242, 78, 116, 0.25);
    border-radius: 999px;
    padding: 5px 10px;
    flex-shrink: 0;
}

.panel-section {
    margin-bottom: 20px;
}

.panel-section-label {
    color: var(--paper-text-dim);
    margin: 0 0 12px;
}

.panel-sessions {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.panel-session-row {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 10px;
    font-size: 13.5px;
    padding: 10px 12px;
    background: var(--card);
    border: 1px solid var(--border-on-paper);
    border-radius: 9px;
}

.panel-session-left {
    display: flex;
    flex-direction: column;
    gap: 3px;
    min-width: 0;
}

.panel-session-date {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--paper-text-dim);
}

.panel-session-meta {
    font-family: var(--font-mono);
    color: var(--crimson);
    font-weight: 700;
    font-size: 10.5px;
    letter-spacing: 0.03em;
}

.panel-session-notes {
    color: var(--paper-text);
}

.panel-session-count {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--paper-text-dim);
    white-space: nowrap;
    flex-shrink: 0;
    padding-top: 1px;
}

.panel-ai {
    background: var(--blush);
    border: 1px solid rgba(242, 78, 116, 0.25);
    border-radius: 12px;
    padding: 16px 18px;
}

.panel-ai-label {
    color: var(--crimson);
    margin: 0 0 8px;
}

.panel-ai-text {
    margin: 0;
    font-size: 13.5px;
    line-height: 1.55;
    color: var(--paper-text);
}

@media (max-width: 900px) {
    .hero-inner {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 980px) {
    .hero-panel {
        transform: none;
    }

    .hero-panel-wrap {
        max-width: 460px;
    }
}

@media (max-width: 520px) {
    .panel-session-row {
        flex-direction: column;
        gap: 6px;
    }

    .panel-session-count {
        padding-top: 0;
    }
}

/* -----------------------------------------------------------------------
 * Belt promotion history strip
 * --------------------------------------------------------------------- */

.belt-bar {
    display: inline-flex;
    align-items: center;
    width: 32px;
    height: 11px;
    border-radius: 3px;
    flex-shrink: 0;
    box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.18);
    overflow: hidden;
}

.belt-bar-tip {
    margin-left: auto;
    height: 100%;
    width: 12px;
    background: #161616;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1.5px;
}

.belt-bar-stripe {
    width: 1.5px;
    height: 100%;
    background: #fff;
}

.belt-journey {
    padding: 64px 0;
    border-top: 1px solid var(--border-on-ink);
    border-bottom: 1px solid var(--border-on-ink);
}

.belt-journey-inner {
    display: flex;
    flex-direction: column;
    gap: 28px;
}

.belt-journey-eyebrow {
    color: var(--crimson);
    margin: 0 0 14px;
}

.belt-journey-sub {
    color: var(--ink-text-dim);
    font-size: 15px;
    line-height: 1.6;
    margin: 0;
    max-width: 640px;
}

.belt-strip {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.belt-step {
    display: flex;
    align-items: center;
    gap: 9px;
    background: var(--ink-soft);
    border: 1px solid var(--border-on-ink);
    border-radius: 999px;
    padding: 10px 16px 10px 12px;
    font-size: 13.5px;
}

.belt-step.is-current {
    border-color: rgba(242, 78, 116, 0.4);
}

.belt-step-label {
    font-weight: 600;
}

.belt-step-current {
    font-family: var(--font-mono);
    font-size: 10.5px;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--crimson);
}

/* -----------------------------------------------------------------------
 * Features bento grid
 * --------------------------------------------------------------------- */

.features {
    padding: 96px 0;
}

.features-head {
    max-width: 620px;
    margin-bottom: 44px;
}

.features-eyebrow {
    color: var(--crimson);
    margin: 0 0 14px;
}

.features-title {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: clamp(28px, 3.2vw, 38px);
    line-height: 1.15;
    margin: 0 0 14px;
}

.features-sub {
    font-size: 15.5px;
    line-height: 1.65;
    color: var(--paper-text-dim);
    margin: 0;
}

.bento {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 18px;
}

.bento-card {
    background: #fff;
    border: 1px solid var(--border-on-paper);
    border-radius: 16px;
    padding: 26px;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.bento-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 18px 40px rgba(27, 23, 32, 0.08);
}

.bento-card--span-3 {
    grid-column: span 3;
}

.bento-card--span-2 {
    grid-column: span 2;
}

.bento-card--dark {
    background: var(--ink);
    border-color: var(--border-on-ink);
    color: var(--ink-text);
}

.bento-card--dark .bento-desc {
    color: var(--ink-text-dim);
}

.bento-card--dark .bento-kicker {
    color: var(--crimson);
}

.bento-kicker {
    color: var(--crimson);
    margin: 0 0 12px;
}

.bento-title {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 18.5px;
    margin: 0 0 10px;
}

.bento-desc {
    font-size: 14.5px;
    line-height: 1.6;
    color: var(--paper-text-dim);
    margin: 0;
}

.chip-list {
    list-style: none;
    margin: 18px 0 0;
    padding: 0;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.chip {
    font-family: var(--font-mono);
    font-size: 11.5px;
    letter-spacing: 0.02em;
    background: var(--paper-soft);
    border: 1px solid var(--border-on-paper);
    border-radius: 999px;
    padding: 6px 12px;
    color: var(--paper-text);
}

@media (max-width: 860px) {
    .bento {
        grid-template-columns: repeat(2, 1fr);
    }
    .bento-card--span-3,
    .bento-card--span-2 {
        grid-column: span 2;
    }
}

@media (max-width: 560px) {
    .bento {
        grid-template-columns: 1fr;
    }
    .bento-card--span-3,
    .bento-card--span-2 {
        grid-column: span 1;
    }
}

/* -----------------------------------------------------------------------
 * AI coaching showcase
 * --------------------------------------------------------------------- */

.ai-coaching {
    padding: 96px 0;
}

.ai-head {
    max-width: 620px;
    margin-bottom: 44px;
}

.ai-eyebrow {
    color: var(--crimson);
    margin: 0 0 14px;
}

.ai-title {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: clamp(28px, 3.2vw, 38px);
    line-height: 1.15;
    margin: 0 0 16px;
}

.ai-sub {
    color: var(--ink-text-dim);
    font-size: 15.5px;
    line-height: 1.65;
    margin: 0;
}

.ai-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
}

.ai-card {
    background: var(--ink-soft);
    border: 1px solid var(--border-on-ink);
    border-radius: 16px;
    padding: 24px;
    transition: transform 0.2s ease, border-color 0.2s ease;
}

.ai-card:hover {
    transform: translateY(-3px);
    border-color: rgba(242, 78, 116, 0.4);
}

.ai-card-title {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 16.5px;
    line-height: 1.3;
    margin: 0 0 10px;
}

.ai-card-text {
    font-size: 14px;
    line-height: 1.6;
    color: var(--ink-text-dim);
    margin: 0 0 16px;
}

.ai-card-tag {
    font-family: var(--font-mono);
    font-size: 10.5px;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--crimson);
    margin: 0;
    padding-top: 14px;
    border-top: 1px solid var(--border-on-ink);
}

@media (max-width: 860px) {
    .ai-cards {
        grid-template-columns: 1fr;
    }
}

/* -----------------------------------------------------------------------
 * For coaches section
 * --------------------------------------------------------------------- */

.coach {
    padding: 96px 0;
}

.coach-inner {
    display: grid;
    grid-template-columns: 0.85fr 1.15fr;
    gap: 56px;
    align-items: start;
}

.coach-eyebrow {
    color: var(--crimson);
    margin: 0 0 16px;
}

.coach-title {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: clamp(26px, 3vw, 34px);
    line-height: 1.2;
    margin: 0 0 16px;
}

.coach-sub {
    font-size: 15px;
    line-height: 1.6;
    color: var(--paper-text-dim);
    margin: 0 0 26px;
}

.coach-bullets {
    margin: 0;
    padding: 0;
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.coach-bullets li {
    position: relative;
    padding-left: 22px;
    font-size: 15px;
    line-height: 1.6;
    color: var(--paper-text-dim);
}

.coach-bullets li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 8px;
    width: 8px;
    height: 8px;
    border-radius: 2px;
    background: var(--crimson);
}

.roster-panel {
    background: #fff;
    border: 1px solid var(--border-on-paper);
    border-radius: 16px;
    padding: 22px;
    box-shadow: 0 18px 44px rgba(27, 23, 32, 0.07);
}

.roster-head {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    padding-bottom: 14px;
    margin-bottom: 8px;
    border-bottom: 1px solid var(--border-on-paper);
}

.roster-title {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 15.5px;
    margin: 0;
}

.roster-count {
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--paper-text-dim);
}

.roster-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.roster-row {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 13px 4px;
    border-bottom: 1px solid var(--border-on-paper);
}

.roster-row:last-child {
    border-bottom: none;
}

.roster-avatar {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 13px;
    flex-shrink: 0;
    box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.12);
}

.roster-info {
    flex: 1;
    min-width: 0;
}

.roster-name {
    margin: 0 0 3px;
    font-weight: 600;
    font-size: 14.5px;
}

.roster-meta {
    margin: 0;
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.02em;
    color: var(--paper-text-dim);
}

.roster-view {
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 12.5px;
    color: var(--paper-text);
    background: var(--paper-soft);
    border: 1px solid var(--border-on-paper);
    border-radius: 999px;
    padding: 7px 16px;
    cursor: default;
    flex-shrink: 0;
    transition: border-color 0.15s ease;
}

.roster-view:hover {
    border-color: rgba(27, 23, 32, 0.24);
}

@media (max-width: 860px) {
    .coach-inner {
        grid-template-columns: 1fr;
    }
}

/* -----------------------------------------------------------------------
 * Final CTA
 * --------------------------------------------------------------------- */

.final-cta {
    padding: 110px 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.final-cta::before {
    content: '';
    position: absolute;
    bottom: -140px;
    left: 50%;
    transform: translateX(-50%);
    width: 640px;
    height: 320px;
    background: radial-gradient(circle, rgba(182, 19, 58, 0.28), transparent 70%);
    pointer-events: none;
}

.final-cta-inner {
    position: relative;
    max-width: 620px;
    margin: 0 auto;
}

.final-cta-title {
    font-family: var(--font-display);
    font-weight: 800;
    font-size: clamp(30px, 4vw, 44px);
    line-height: 1.15;
    margin: 0 0 16px;
}

.final-cta-title .accent {
    color: var(--crimson);
}

.final-cta-sub {
    color: var(--ink-text-dim);
    font-size: 15.5px;
    line-height: 1.6;
    margin: 0 0 32px;
}

.final-cta-actions {
    display: flex;
    gap: 14px;
    justify-content: center;
    flex-wrap: wrap;
}

/* -----------------------------------------------------------------------
 * Footer
 * --------------------------------------------------------------------- */

.footer {
    padding: 40px 0;
    background: var(--ink);
    color: var(--ink-text);
    border-top: 1px solid var(--border-on-ink);
}

.footer-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    flex-wrap: wrap;
}

.footer-brand {
    display: inline-flex;
    text-decoration: none;
    color: var(--ink-text-dim);
}

/* The footer's background is dark ink, matching the rest of the page, so the
   wordmark itself is forced to the muted ink text color rather than the
   crimson accent used elsewhere. */
.footer-brand .brand-word {
    color: var(--ink-text);
}

.footer-meta {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 4px;
}

.footer-copy {
    font-family: var(--font-mono);
    font-size: 11.5px;
    color: var(--ink-text-dim);
    margin: 0;
}

.footer-attribution {
    font-family: var(--font-mono);
    font-size: 11.5px;
    color: var(--ink-text-dim);
    margin: 0;
}

.footer-attribution a {
    color: var(--ink-text);
    text-decoration: none;
}

.footer-attribution a:hover {
    color: var(--crimson);
}

@media (max-width: 640px) {
    .footer-inner {
        flex-direction: column;
        text-align: center;
    }

    .footer-meta {
        align-items: center;
    }
}