/* ================================================================
   style.css — LLMR website
   Dark theme by default. Light theme: [data-theme="light"]
   ================================================================ */

/* --- VARIABLES (dark default) --- */
:root {
    --bg:      #0a0a0b;
    --surface: #141416;
    --surface2:#1a1a1e;
    --border:  #2a2a2e;
    --text:    #e4e4e7;
    --muted:   #71717a;
    --accent:  #22d3ee;
    --accent2: #a78bfa;
    --red:     #f87171;
    --green:   #4ade80;
    --mono:    'JetBrains Mono', monospace;
    --sans:    'DM Sans', system-ui, sans-serif;
}

/* --- LIGHT THEME --- */
[data-theme="light"] {
    --bg:      #ffffff;
    --surface: #f4f4f5;
    --surface2:#e4e4e7;
    --border:  #d4d4d8;
    --text:    #09090b;
    --muted:   #52525b;
    --accent:  #0891b2;
    --accent2: #7c3aed;
    --red:     #dc2626;
    --green:   #16a34a;
}

/* --- RESET --- */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    font-family: var(--sans);
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

/* --- NAV --- */
nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 2rem;
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--bg);
}

.nav-logo {
    font-family: var(--mono);
    font-weight: 800;
    font-size: 16px;
    color: var(--text);
    text-decoration: none;
    letter-spacing: -0.5px;
}

.nav-logo span { color: var(--accent); }

.nav-links {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.nav-links a {
    font-size: 13px;
    color: var(--muted);
    font-family: var(--mono);
    text-decoration: none;
    transition: color .15s;
}

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

/* --- THEME TOGGLE BUTTON --- */
.theme-toggle {
    background: none;
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--muted);
    cursor: pointer;
    font-size: 15px;
    padding: 4px 9px;
    line-height: 1;
    transition: all .2s;
}

.theme-toggle:hover {
    border-color: var(--accent);
    color: var(--accent);
}

/* --- HERO --- */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 2rem;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%; left: -50%;
    width: 200%; height: 200%;
    background:
        radial-gradient(ellipse at 30% 20%, rgba(34,211,238,0.06) 0%, transparent 50%),
        radial-gradient(ellipse at 70% 80%, rgba(167,139,250,0.04) 0%, transparent 50%);
    pointer-events: none;
}

[data-theme="light"] .hero::before {
    background:
        radial-gradient(ellipse at 30% 20%, rgba(8,145,178,0.08) 0%, transparent 50%),
        radial-gradient(ellipse at 70% 80%, rgba(124,58,237,0.06) 0%, transparent 50%);
}

.hero--compact {
    min-height: auto;
    padding-top: 3rem;
    padding-bottom: 1rem;
}

.badge {
    display: inline-block;
    font-family: var(--mono);
    font-size: 0.75rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--accent);
    border: 1px solid rgba(34,211,238,0.3);
    padding: 0.4rem 1rem;
    border-radius: 99px;
    margin-bottom: 2rem;
    animation: fadeIn 0.6s ease-out;
}

[data-theme="light"] .badge { border-color: rgba(8,145,178,0.4); }

h1 {
    font-family: var(--mono);
    font-size: clamp(2.5rem, 6vw, 5rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    animation: fadeIn 0.6s ease-out 0.1s both;
}

h1 .accent { color: var(--accent); }

.subtitle {
    font-size: clamp(1.1rem, 2vw, 1.4rem);
    color: var(--muted);
    max-width: 600px;
    margin-bottom: 3rem;
    animation: fadeIn 0.6s ease-out 0.2s both;
}

/* --- TOKEN COUNTER --- */
.counter-wrap {
    display: flex;
    align-items: center;
    gap: 2rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
    justify-content: center;
    animation: fadeIn 0.8s ease-out 0.4s both;
}

.counter { text-align: center; }

.counter-num {
    font-family: var(--mono);
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    line-height: 1;
}

.counter-label { font-size: 0.85rem; color: var(--muted); margin-top: 0.25rem; }

.counter-old .counter-num {
    color: var(--red);
    text-decoration: line-through;
    text-decoration-thickness: 3px;
    opacity: 0.6;
}

.counter-new .counter-num { color: var(--green); }

.counter-arrow { font-size: 2rem; color: var(--accent); }

.counter-pct {
    font-family: var(--mono);
    font-size: clamp(3rem, 6vw, 5rem);
    font-weight: 800;
    color: var(--accent);
    line-height: 1;
}

.counter-pct-label { font-size: 0.85rem; color: var(--muted); }

/* --- BUTTONS & CTA --- */
.cta-row {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    justify-content: center;
    animation: fadeIn 0.6s ease-out 0.5s both;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.8rem 1.6rem;
    border-radius: 8px;
    font-family: var(--mono);
    font-size: 0.9rem;
    font-weight: 700;
    text-decoration: none;
    transition: all 0.2s;
    cursor: pointer;
    border: none;
}

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

.btn-primary:hover {
    background: #67e8f9;
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(34,211,238,0.2);
}

[data-theme="light"] .btn-primary:hover { background: #06b6d4; }

.btn-ghost {
    background: transparent;
    color: var(--text);
    border: 1px solid var(--border);
}

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

/* "Try it" button — accent2 (purple) */
.btn-try {
    background: transparent;
    color: var(--accent2);
    border: 1px solid var(--accent2);
}

.btn-try:hover {
    background: rgba(167,139,250,0.1);
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(167,139,250,0.15);
}

[data-theme="light"] .btn-try:hover { background: rgba(124,58,237,0.08); }

/* --- SECTIONS --- */
section {
    max-width: 900px;
    margin: 0 auto;
    padding: 5rem 2rem;
}

h2 {
    font-family: var(--mono);
    font-size: clamp(1.5rem, 3vw, 2.2rem);
    font-weight: 800;
    margin-bottom: 0.5rem;
}

h2 .num { color: var(--accent); font-size: 0.8em; }

.section-sub {
    color: var(--muted);
    margin-bottom: 2.5rem;
    font-size: 1.05rem;
}

/* --- CODE BLOCK --- */
.code-block {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 10px;
    overflow: hidden;
    margin: 1.5rem 0;
}

.code-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.6rem 1rem;
    border-bottom: 1px solid var(--border);
    font-family: var(--mono);
    font-size: 0.75rem;
    color: var(--muted);
}

.code-body {
    padding: 1.2rem 1.5rem;
    font-family: var(--mono);
    font-size: 0.85rem;
    line-height: 1.7;
    overflow-x: auto;
}

.code-body .key { color: var(--accent); }
.code-body .str { color: var(--green); }
.code-body .num { color: var(--accent2); }
.code-body .dim { color: var(--muted); }

/* --- INSTALL TABS --- */
.tabs {
    display: flex;
    border-bottom: 1px solid var(--border);
}

.tab {
    padding: 0.6rem 1.2rem;
    font-family: var(--mono);
    font-size: 0.8rem;
    color: var(--muted);
    cursor: pointer;
    border: none;
    background: none;
    border-bottom: 2px solid transparent;
    transition: all 0.2s;
}

.tab:hover { color: var(--text); }
.tab.active { color: var(--accent); border-bottom-color: var(--accent); }

.tab-content { display: none; }
.tab-content.active { display: block; }

.install-cmd {
    padding: 1.2rem 1.5rem;
    font-family: var(--mono);
    font-size: 0.9rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-top: none;
    border-radius: 0 0 10px 10px;
    color: var(--green);
    cursor: pointer;
    position: relative;
}

.install-cmd:hover::after {
    content: 'click to copy';
    position: absolute;
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
    font-size: 0.7rem;
    color: var(--muted);
}

/* --- COMPARISON TABLE --- */
.compare-table {
    width: 100%;
    border-collapse: collapse;
    font-family: var(--mono);
    font-size: 0.85rem;
    margin: 1.5rem 0;
}

.compare-table th,
.compare-table td {
    padding: 0.8rem 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

.compare-table th {
    color: var(--muted);
    font-weight: 400;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.compare-table .win  { color: var(--green); font-weight: 700; }
.compare-table .lose { color: var(--muted); }

/* --- BENCHMARK --- */
.benchmark {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 2rem;
    margin: 1.5rem 0;
}

.benchmark-title {
    font-family: var(--mono);
    font-size: 0.75rem;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: 0.15em;
    margin-bottom: 1rem;
}

.benchmark-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.5rem 0;
    border-bottom: 1px solid rgba(255,255,255,0.05);
}

[data-theme="light"] .benchmark-row { border-bottom-color: rgba(0,0,0,0.06); }

.benchmark-label { color: var(--muted); font-size: 0.9rem; }
.benchmark-val   { font-family: var(--mono); font-weight: 700; }
.benchmark-val.green { color: var(--green); }

/* --- FOOTER --- */
footer {
    text-align: center;
    padding: 3rem 2rem;
    color: var(--muted);
    font-size: 0.85rem;
    border-top: 1px solid var(--border);
}

footer a { color: var(--accent); text-decoration: none; }
footer a:hover { text-decoration: underline; }

/* --- ANIMATIONS --- */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* --- UTILITY --- */
.visually-hidden {
    position: absolute;
    width: 1px; height: 1px;
    padding: 0; margin: -1px;
    overflow: hidden; clip: rect(0,0,0,0);
    white-space: nowrap; border: 0;
}

.text-center { text-align: center; }

/* --- IN-TEXT LINK COLOURS --- */
.section-sub a   { color: var(--accent); }
.section-note a  { color: var(--accent); }
.compare-table a { color: var(--accent); text-decoration: none; }
.compare-table a:hover { text-decoration: underline; }

/* --- PROSE (about page) --- */
.prose {
    font-size: 1.05rem;
    line-height: 1.8;
    max-width: 600px;
    color: var(--text);
}

.prose-muted {
    font-size: 1rem;
    line-height: 1.8;
    max-width: 600px;
    color: var(--muted);
    margin-top: 1.25rem;
}

.prose-sm {
    font-size: 0.95rem;
    line-height: 1.8;
    max-width: 600px;
    color: var(--muted);
}

.prose a,
.prose-muted a,
.prose-sm a { color: var(--accent); }

/* --- ABOUT CTA --- */
.about-cta { margin-top: 1.5rem; }
.about-cta a { color: var(--accent); font-size: 0.95rem; }

/* --- INLINE CODE --- */
.code-inline {
    color: var(--accent);
    font-family: var(--mono);
    font-size: 0.85rem;
}

/* --- NOTES --- */
.section-note  { color: var(--muted); font-size: 0.85rem; margin-top: 1rem; }
.install-note  { margin-top: 1.5rem; color: var(--muted); font-size: 0.9rem; }
.footer-note   { margin-top: 0.5rem; color: var(--muted); }

/* --- RESPONSIVE --- */
@media (max-width: 640px) {
    nav             { padding: 0.75rem 1rem; }
    .nav-links      { gap: 1rem; }
    .counter-wrap   { gap: 1rem; }
    .counter-arrow  { display: none; }
    section         { padding: 3rem 1.5rem; }
    .cta-row        { gap: 0.75rem; }
}