/* ============================================================
   NBA Shot Optimization — design system
   Style reference: officialskills.sh
   Black background · Geist / Geist Mono / GeistPixel-Line
   Accent: #18d2a6
   ============================================================ */

@font-face {
    font-family: "Geist";
    src: url("fonts/Geist-Variable.woff2") format("woff2");
    font-weight: 100 900;
    font-display: swap;
}

@font-face {
    font-family: "Geist Mono";
    src: url("fonts/GeistMono-Variable.woff2") format("woff2");
    font-weight: 100 900;
    font-display: swap;
}

@font-face {
    font-family: "GeistPixel-Line";
    src: url("fonts/GeistPixel-Line.woff2") format("woff2");
    font-weight: 400;
    font-display: swap;
}

:root {
    --color-background: #000;
    --color-foreground: #ededed;
    --color-accent: #18d2a6;
    --color-border: #2e2e2e;
    --color-gray-100: #1a1a1a;
    --color-gray-300: #292929;
    --color-gray-500: #454545;
    --color-gray-600: #666;
    --color-gray-700: #878787;
    --color-gray-900: #a1a1a1;
    --color-gray-1000: #ededed;
    --color-muted: #a0a0a0;

    --font-sans: "Geist", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    --font-mono: "Geist Mono", "SFMono-Regular", Menlo, monospace;
    --font-display: "GeistPixel-Line", monospace;

    --radius-md: 6px;
    --radius-lg: 10px;

    --text-label-12: 12px;
    --text-label-13: 13px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    background: var(--color-background);
    color: var(--color-foreground);
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

::selection {
    background: var(--color-accent);
    color: #000;
}

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

/* ---------- Header ---------- */

.topbar {
    position: sticky;
    top: 0;
    z-index: 50;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border);
}

.topbar-inner {
    min-height: 52px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 0 1rem;
    max-width: 2000px;
    margin: 0 auto;
}

.brand {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 15px;
    font-weight: 600;
    letter-spacing: -0.01em;
}

.brand-accent {
    color: var(--color-accent);
    font-family: var(--font-mono);
    font-weight: 500;
}

.topbar-links {
    display: flex;
    align-items: center;
    gap: 1.25rem;
    font-size: 14px;
    color: var(--color-gray-900);
}

.topbar-links a:hover {
    color: var(--color-foreground);
}

.topbar-cta {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 0.4rem 0.875rem;
    font-family: var(--font-mono);
    font-size: 13px;
    color: var(--color-gray-1000);
    transition: background 0.15s;
    white-space: nowrap;
}

.topbar-cta:hover {
    background: var(--color-gray-100);
}

.lang-link {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 0.25rem 0.625rem;
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--color-gray-900);
    transition: background 0.15s, color 0.15s;
}

.lang-link:hover {
    background: var(--color-gray-100);
    color: var(--color-foreground);
}

@media (max-width: 640px) {
    .topbar-links span {
        display: none;
    }
}

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

.hero-grid {
    display: grid;
    grid-template-columns: 1fr;
    border-bottom: 1px solid var(--color-border);
}

@media (min-width: 1024px) {
    .hero-grid {
        grid-template-columns: 1.55fr 0.95fr 0.7fr;
    }
}

.hero-cell {
    padding: 2.5rem 1.25rem;
    border-bottom: 1px solid var(--color-border);
}

@media (min-width: 1024px) {
    .hero-cell {
        padding: 2.5rem 4rem;
        border-bottom: none;
        border-right: 1px solid var(--color-border);
    }
    .hero-cell:last-child {
        border-right: none;
    }
}

.hero-title {
    font-family: var(--font-display);
    font-weight: 400;
    font-size: 2.25rem;
    line-height: 1.05;
    margin-bottom: 1.5rem;
}

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

@media (min-width: 640px) {
    .hero-title { font-size: 3rem; }
}

@media (min-width: 1024px) {
    .hero-title { font-size: 3.75rem; }
}

.hero-sub {
    font-size: 14px;
    color: var(--color-muted);
    line-height: 1.6;
    margin-bottom: 2rem;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.625rem;
}

.btn-outline {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 0.625rem 1.25rem;
    font-size: 13px;
    color: var(--color-gray-1000);
    transition: background 0.15s;
}

.btn-outline:hover {
    background: var(--color-gray-100);
}

.btn-accent {
    border-color: var(--color-accent);
    color: var(--color-accent);
}

.btn-accent:hover {
    background: rgba(24, 210, 166, 0.1);
}

/* ---------- Quick stats panel ---------- */

.panel-label {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 11px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-muted);
    font-family: var(--font-mono);
}

.panel-label::before {
    content: "▸";
    color: var(--color-accent);
    font-size: 10px;
}

.stats-list {
    margin-top: 1.25rem;
}

.stat-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.625rem 0;
    font-size: 16px;
    border-top: 1px solid var(--color-border);
}

.stat-row span:first-child {
    color: var(--color-muted);
}

.stat-value {
    color: var(--color-accent);
    font-family: var(--font-mono);
}

/* ---------- Compatibility grid (NBA teams) ---------- */

.compat-grid {
    display: none;
}

@media (min-width: 1024px) {
    .compat-grid {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 0;
        margin-top: 1rem;
    }
}

.compat-tile {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    height: 6.5rem;
    border: 1px solid var(--color-border);
    color: var(--color-gray-1000);
    transition: background 0.15s;
}

.compat-tile:hover {
    background: var(--color-gray-100);
}



.compat-tile .tile-name {
    font-family: var(--font-mono);
    font-size: 13px;
    color: var(--color-gray-700);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* ---------- Marquee ---------- */

.marquee {
    border-bottom: 1px solid var(--color-border);
    overflow: hidden;
    padding: 1.25rem 0;
}

.marquee-label {
    text-align: center;
    font-size: 11px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-muted);
    font-family: var(--font-mono);
    margin-bottom: 1rem;
}

.marquee-track {
    display: flex;
    width: max-content;
    animation: marquee-scroll 32s linear infinite;
}

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

.marquee-item {
    display: flex;
    align-items: center;
    padding: 0 1.5rem;
    white-space: nowrap;
    color: var(--color-gray-900);
    font-family: var(--font-mono);
    font-size: 13px;
}



@keyframes marquee-scroll {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

/* ---------- Find Strategies ---------- */

.find-section {
    max-width: 2000px;
    margin: 0 auto;
    padding: 2.5rem 1rem;
}

.find-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.find-sub {
    font-size: 14px;
    color: var(--color-gray-700);
    margin-bottom: 1.5rem;
}

.find-layout {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}

@media (min-width: 1024px) {
    .find-layout {
        grid-template-columns: 16rem 1fr;
        gap: 3rem;
    }
}

/* Sidebar: publishers/sources */
.publishers {
    display: flex;
    flex-wrap: wrap;
    gap: 0.375rem;
    align-content: flex-start;
}

@media (min-width: 1024px) {
    .publishers {
        flex-direction: column;
        align-items: flex-start;
    }
}

.publisher {
    display: flex;
    align-items: center;
    padding: 0.4rem 0.75rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: 13px;
    color: var(--color-gray-900);
    transition: background 0.15s, color 0.15s;
    white-space: nowrap;
}

.publisher:hover {
    background: var(--color-gray-100);
    color: var(--color-foreground);
}



@media (min-width: 1024px) {
    .publisher {
        width: 100%;
        padding: 0.5rem 0.25rem;
        border: none;
        border-radius: 0;
        border-bottom: 1px solid var(--color-border);
    }
    .publisher:last-child {
        border-bottom: none;
    }
}

/* Filters + search */
.find-toolbar {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-bottom: 0.5rem;
}

@media (min-width: 640px) {
    .find-toolbar {
        flex-direction: row;
        align-items: center;
        justify-content: space-between;
        border-bottom: 1px solid var(--color-border);
    }
}

.chips {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem 1.25rem;
    padding: 0.25rem 0;
}

.chip {
    display: inline-flex;
    align-items: baseline;
    gap: 0.375rem;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.25rem 0;
    font-family: inherit;
    font-size: 14px;
    color: var(--color-gray-700);
    transition: color 0.15s;
}

.chip .chip-count {
    font-family: var(--font-mono);
    font-size: 12px;
}

.chip.active {
    color: var(--color-gray-1000);
}

.chip.active .chip-name {
    border-bottom: 1px solid var(--color-gray-1000);
    padding-bottom: 2px;
}

.chip.active .chip-count {
    color: var(--color-accent);
}

.search-box {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex: 1;
    min-width: 0;
    max-width: 22rem;
    color: var(--color-gray-600);
}

.search-box svg {
    flex-shrink: 0;
}

.search-box input {
    flex: 1;
    min-width: 0;
    background: transparent;
    border: none;
    outline: none;
    padding: 0.75rem 0;
    font-family: var(--font-mono);
    font-size: 13px;
    color: var(--color-gray-1000);
}

.search-box input::placeholder {
    color: var(--color-gray-700);
}

/* Strategy rows */
.strategy-list {
    max-height: 1088px;
    overflow-y: auto;
    padding-right: 0.5rem;
    margin-top: 0.5rem;
}

.strategy-row {
    display: flex;
    align-items: center;
    gap: 0.5rem 1rem;
    padding: 0.875rem 0.5rem 0.875rem 0;
    border-bottom: 1px solid var(--color-border);
    transition: background 0.1s;
    cursor: pointer;
}

.strategy-row:hover {
    background: var(--color-gray-100);
}

.strategy-num {
    width: 1.5rem;
    flex-shrink: 0;
    font-family: var(--font-mono);
    font-size: 13px;
    color: var(--color-gray-500);
    font-variant-numeric: tabular-nums;
    align-self: flex-start;
    padding-top: 0.125rem;
}

.strategy-main {
    flex: 1;
    min-width: 0;
}

.strategy-head {
    display: flex;
    align-items: baseline;
    gap: 0.625rem;
    min-width: 0;
    flex-wrap: wrap;
}

.strategy-name {
    font-family: var(--font-mono);
    font-size: 13px;
    font-weight: 600;
    color: var(--color-gray-1000);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

@media (min-width: 640px) {
    .strategy-name { font-size: 16px; }
}

.strategy-source {
    font-size: 13px;
    color: var(--color-gray-700);
    white-space: nowrap;
}

.strategy-desc {
    font-size: 13px;
    color: var(--color-gray-700);
    line-height: 1.5;
    margin-top: 0.25rem;
    max-width: 48rem;
}

.strategy-arrow {
    color: var(--color-gray-500);
    font-family: var(--font-mono);
    font-size: 14px;
    transition: transform 0.15s;
    flex-shrink: 0;
}

.strategy-row:hover .strategy-arrow {
    transform: translateX(4px);
    color: var(--color-accent);
}

.empty-state {
    padding: 3rem 1rem;
    text-align: center;
    color: var(--color-gray-700);
    font-size: 14px;
    font-family: var(--font-mono);
}

/* ---------- Paper sections ---------- */

.paper {
    max-width: 2000px;
    margin: 0 auto;
    padding: 2.5rem 1rem;
    border-top: 1px solid var(--color-border);
}

.paper h2 {
    font-family: var(--font-mono);
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-muted);
    margin-bottom: 1.5rem;
}

.paper h3 {
    font-size: 1.125rem;
    font-weight: 600;
    margin: 1.75rem 0 0.75rem;
}

.paper p,
.paper li {
    font-size: 15px;
    line-height: 1.7;
    color: var(--color-gray-900);
    margin-bottom: 0.75rem;
}

.paper ol,
.paper ul {
    padding-left: 1.25rem;
    margin-bottom: 1rem;
}

.abstract-box,
.highlight-box,
.result-box {
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    background: var(--color-gray-100);
    margin-bottom: 1.5rem;
}

.highlight-box h4,
.result-box h4,
.abstract-box h4 {
    font-family: var(--font-mono);
    font-size: 13px;
    color: var(--color-accent);
    margin-bottom: 0.75rem;
}

.formula-box,
.code-box {
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background: var(--color-gray-100);
    padding: 1rem 1.25rem;
    margin: 1rem 0;
    overflow-x: auto;
}

.formula-box code,
.code-box pre,
.code-box code {
    font-family: var(--font-mono);
    font-size: 13px;
    color: var(--color-foreground);
}

.insight {
    color: var(--color-accent) !important;
}

.factors-grid,
.analogy-grid,
.conclusions-box {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1rem;
    margin: 1rem 0 1.5rem;
}

@media (min-width: 768px) {
    .factors-grid,
    .analogy-grid {
        grid-template-columns: 1fr 1fr;
    }
    .conclusions-box {
        grid-template-columns: 1fr 1fr;
    }
}

.factor-card,
.analogy-card,
.conclusion-item {
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 1.25rem;
    background: var(--color-gray-100);
}

.factor-card h4,
.analogy-card h4,
.conclusion-item h4 {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.factor-card code {
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--color-accent);
}

.analogy-card li,
.conclusion-item p {
    font-size: 13px;
}

.table-wrapper {
    overflow-x: auto;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    margin: 1rem 0 1.5rem;
}

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}

th {
    font-family: var(--font-mono);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-gray-700);
    text-align: left;
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--color-border);
    font-weight: 500;
}

td {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--color-border);
    color: var(--color-gray-900);
    font-family: var(--font-mono);
    font-size: 13px;
}

tr.highlight-row td {
    color: var(--color-accent);
}

.references li {
    font-size: 13px;
    margin-bottom: 0.5rem;
}

.references a {
    color: var(--color-accent);
}

.references a:hover {
    text-decoration: underline;
}

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

.cta-box {
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 2.5rem 1.5rem;
    text-align: center;
    margin: 2.5rem auto;
    max-width: 48rem;
}

.cta-box h2 {
    font-family: var(--font-display);
    font-weight: 400;
    font-size: 1.5rem;
    margin-bottom: 0.75rem;
}

.cta-box p {
    color: var(--color-gray-700);
    font-size: 14px;
    margin-bottom: 1.5rem;
}

.cta-buttons {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.75rem;
}

.btn-large {
    padding: 0.75rem 1.75rem;
}

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

.site-footer {
    border-top: 1px solid var(--color-border);
    padding: 2.5rem 1rem;
    text-align: center;
}

.site-footer p {
    color: var(--color-gray-700);
    font-size: 13px;
    line-height: 1.7;
}

.footer-links {
    margin-top: 0.75rem;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.75rem;
}

.footer-links a {
    color: var(--color-gray-900);
    font-family: var(--font-mono);
    font-size: 12px;
}

.footer-links a:hover {
    color: var(--color-accent);
}

/* ---------- Docs pages (shared) ---------- */

.navbar {
    position: sticky;
    top: 0;
    z-index: 50;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border);
    padding: 0.875rem 0;
}

.navbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
}

.nav-brand h1 {
    font-size: 1.25rem;
    font-weight: 600;
}

.nav-brand .subtitle {
    font-size: 0.75rem;
    color: var(--color-gray-700);
    font-family: var(--font-mono);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 1.25rem;
    font-size: 14px;
    color: var(--color-gray-900);
    flex-wrap: wrap;
}

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

.btn-nav {
    padding: 0.4rem 0.875rem;
    font-family: var(--font-mono);
    font-size: 13px;
}

/* ---------- Animations ---------- */

@keyframes fade-up {
    from {
        opacity: 0;
        transform: translateY(12px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-up {
    animation: fade-up 0.5s ease-out both;
}

.delay-120 { animation-delay: 120ms; }
.delay-240 { animation-delay: 240ms; }
.delay-360 { animation-delay: 360ms; }

@media (prefers-reduced-motion: reduce) {
    .marquee-track {
        animation: none;
    }
    .fade-up {
        animation: none;
    }
    html {
        scroll-behavior: auto;
    }
}