/* ==============================================================
   speedytypest — Global stylesheet
   - CSS variables (colors, spacing, type)
   - Layout, header, footer, buttons, forms, modals
   - Mobile-first; breakpoints sm 480 / md 768 / lg 1024 / xl 1280
   ============================================================== */

:root {
    /* Colors */
    --color-primary:    #E2B714;
    --color-bg:         #323437;
    --color-surface:    #2C2E31;
    --color-surface-2:  #26282B;
    --color-text:       #D1D0C5;
    --color-text-muted: #646669;
    --color-correct:    #D1D0C5;
    --color-incorrect:  #CA4754;
    --color-caret:      #E2B714;
    --color-accent:     #E2B714;
    --color-admin:      #5865F2;
    --color-success:    #4ade80;
    --color-border:     #3a3c40;

    /* Spacing scale (base 8) */
    --sp-1: 8px;
    --sp-2: 16px;
    --sp-3: 24px;
    --sp-4: 32px;
    --sp-5: 48px;
    --sp-6: 64px;

    /* Typography */
    --font-ui:   'Inter', system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
    --font-mono: 'JetBrains Mono', Menlo, Consolas, monospace;

    /* Radii / shadows */
    --radius-sm: 6px;
    --radius:    10px;
    --radius-lg: 16px;
    --shadow:    0 4px 18px rgba(0,0,0,.35);
    --shadow-lg: 0 16px 40px rgba(0,0,0,.5);

    /* Transitions */
    --t-fast: 150ms ease;
    --t-med:  250ms ease;
}

/* ============== Reset / base ============== */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
    margin: 0;
    font-family: var(--font-ui);
    color: var(--color-text);
    background: var(--color-bg);
    line-height: 1.55;
    -webkit-font-smoothing: antialiased;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}
main { flex: 1 0 auto; }

img, svg { max-width: 100%; display: block; }
a { color: var(--color-primary); text-decoration: none; transition: color var(--t-fast); }
a:hover { color: #f5cf3e; }
button { font: inherit; cursor: pointer; }
input, select, textarea { font: inherit; }

h1,h2,h3,h4 { font-family: var(--font-ui); font-weight: 700; line-height: 1.2; margin: 0 0 var(--sp-2); color: var(--color-text); }
h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2.25rem); }
h3 { font-size: 1.25rem; }
p  { margin: 0 0 var(--sp-2); }

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--sp-2);
}
@media (min-width: 768px) {
    .container { padding: 0 var(--sp-3); }
}

/* Visually hidden helper */
.visually-hidden {
    position: absolute !important;
    clip: rect(1px, 1px, 1px, 1px);
    width: 1px; height: 1px; overflow: hidden;
}

/* ============== Header ============== */
.site-header {
    position: sticky; top: 0; z-index: 50;
    background: rgba(50,52,55,0.92);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border);
}
.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}
.logo {
    display: flex;
    align-items: center;
    gap: var(--sp-1);
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--color-text);
}
.logo:hover { color: var(--color-text); }
.logo-icon { color: var(--color-primary); font-size: 1.4rem; }
.logo-text { letter-spacing: -0.5px; }

.site-nav {
    display: flex;
    align-items: center;
    gap: var(--sp-2);
}
.nav-link {
    color: var(--color-text-muted);
    font-weight: 500;
    font-size: 0.95rem;
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    transition: color var(--t-fast), background var(--t-fast);
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
.nav-link:hover { color: var(--color-text); background: var(--color-surface); }
.nav-link i { font-size: 0.9rem; }

.user-chip {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--color-surface);
    padding: 6px 12px 6px 6px;
    border-radius: 999px;
}
.avatar {
    width: 28px; height: 28px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: #1a1b1d;
    font-weight: 700;
    font-size: 0.85rem;
}
.user-name { color: var(--color-text); font-weight: 500; font-size: 0.9rem; }

.nav-toggle {
    display: none;
    background: transparent;
    border: 0;
    color: var(--color-text);
    font-size: 1.4rem;
    padding: 8px;
}

@media (max-width: 767px) {
    .nav-toggle { display: inline-flex; }
    .site-nav {
        position: absolute;
        top: 64px; left: 0; right: 0;
        background: var(--color-surface);
        border-bottom: 1px solid var(--color-border);
        flex-direction: column;
        align-items: stretch;
        padding: var(--sp-2);
        gap: var(--sp-1);
        transform: translateY(-110%);
        transition: transform var(--t-med);
    }
    .site-nav.open { transform: translateY(0); }
    .nav-link { padding: 14px 12px; min-height: 44px; }
    .user-chip { justify-content: flex-start; }
}

/* ============== Buttons ============== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 22px;
    border: 0;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.95rem;
    text-decoration: none;
    transition: background var(--t-fast), transform var(--t-fast), color var(--t-fast);
    min-height: 44px;
    line-height: 1;
}
.btn-primary {
    background: var(--color-primary);
    color: #1a1b1d;
}
.btn-primary:hover { background: #f0c727; color: #1a1b1d; }
.btn-ghost {
    background: transparent;
    color: var(--color-text);
    border: 1px solid var(--color-border);
}
.btn-ghost:hover { background: var(--color-surface); color: var(--color-text); }
.btn-block { width: 100%; }
.btn-lg { padding: 16px 28px; font-size: 1.05rem; }

/* ============== Forms ============== */
.auth-form { display: flex; flex-direction: column; gap: var(--sp-2); }
.auth-form label {
    display: flex;
    flex-direction: column;
    gap: 6px;
    font-size: 0.85rem;
    color: var(--color-text-muted);
    font-weight: 500;
}
.auth-form input[type="text"],
.auth-form input[type="email"],
.auth-form input[type="password"] {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    color: var(--color-text);
    padding: 12px 14px;
    border-radius: var(--radius-sm);
    font-size: 16px; /* prevents iOS zoom */
    transition: border-color var(--t-fast);
}
.auth-form input:focus {
    outline: none;
    border-color: var(--color-primary);
}
.form-row-between {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.85rem;
    color: var(--color-text-muted);
}
.checkbox { display: inline-flex; align-items: center; gap: 6px; }
.form-error {
    background: rgba(202,71,84,0.12);
    color: var(--color-incorrect);
    border: 1px solid rgba(202,71,84,0.3);
    padding: 10px 12px;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    margin: 0;
}
.form-switch {
    text-align: center;
    color: var(--color-text-muted);
    font-size: 0.85rem;
    margin: 0;
}

/* ============== Modals ============== */
.modal {
    position: fixed;
    inset: 0;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--sp-2);
}
.modal[hidden] { display: none; }
.modal-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,.6);
    backdrop-filter: blur(4px);
    animation: fadeIn .2s ease;
}
.modal-card {
    position: relative;
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    padding: var(--sp-4);
    width: 100%;
    max-width: 420px;
    box-shadow: var(--shadow-lg);
    animation: slideDown .25s ease;
    border: 1px solid var(--color-border);
}
.modal-close {
    position: absolute;
    top: 12px; right: 12px;
    background: transparent;
    border: 0;
    color: var(--color-text-muted);
    font-size: 1.6rem;
    width: 36px; height: 36px;
    border-radius: 50%;
    transition: background var(--t-fast), color var(--t-fast);
}
.modal-close:hover { background: var(--color-bg); color: var(--color-text); }
.modal-card h2 { margin-bottom: 6px; }
.modal-sub { color: var(--color-text-muted); margin-bottom: var(--sp-3); font-size: 0.9rem; }

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

/* ============== Footer ============== */
.site-footer {
    background: var(--color-surface);
    border-top: 1px solid var(--color-border);
    margin-top: var(--sp-6);
    padding-top: var(--sp-5);
}
.footer-inner {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--sp-4);
    padding-bottom: var(--sp-4);
}
@media (min-width: 768px) {
    .footer-inner { grid-template-columns: 2fr 1fr 1fr 1fr; }
}
.footer-tagline { color: var(--color-text-muted); font-size: 0.9rem; max-width: 320px; margin-top: var(--sp-1); }
.footer-nav { display: flex; flex-direction: column; gap: 8px; }
.footer-nav h4 { font-size: 0.85rem; text-transform: uppercase; letter-spacing: 1px; color: var(--color-text-muted); margin-bottom: 6px; }
.footer-nav a { color: var(--color-text); font-size: 0.9rem; }
.footer-nav a:hover { color: var(--color-primary); }
.footer-social h4 { font-size: 0.85rem; text-transform: uppercase; letter-spacing: 1px; color: var(--color-text-muted); margin-bottom: 6px; }
.social-icons { display: flex; gap: var(--sp-1); }
.social-icons a {
    width: 40px; height: 40px;
    border-radius: 50%;
    background: var(--color-bg);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-muted);
    transition: all var(--t-fast);
}
.social-icons a:hover { background: var(--color-primary); color: #1a1b1d; }
.footer-bottom {
    border-top: 1px solid var(--color-border);
    padding: var(--sp-2) 0;
    text-align: center;
    color: var(--color-text-muted);
    font-size: 0.85rem;
}

/* ============== Toasts ============== */
.toast-container {
    position: fixed;
    bottom: var(--sp-3);
    right: var(--sp-3);
    z-index: 200;
    display: flex;
    flex-direction: column;
    gap: var(--sp-1);
    pointer-events: none;
}
.toast {
    background: var(--color-surface);
    border-left: 4px solid var(--color-primary);
    padding: 14px 18px;
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-lg);
    color: var(--color-text);
    font-size: 0.92rem;
    pointer-events: auto;
    animation: toastIn .35s cubic-bezier(.2,.7,.2,1.3);
    max-width: 320px;
}
.toast-success { border-left-color: var(--color-success); }
.toast-error   { border-left-color: var(--color-incorrect); }
.toast-badge   { border-left-color: var(--color-primary); }
.toast strong { display: block; margin-bottom: 2px; }
@keyframes toastIn {
    from { opacity: 0; transform: translateY(20px) }
    to   { opacity: 1; transform: translateY(0) }
}

/* ============== Landing — Hero ============== */
.hero {
    padding: var(--sp-6) 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}
.hero h1 { letter-spacing: -1px; }
.hero h1 .accent { color: var(--color-primary); }
.hero-sub {
    color: var(--color-text-muted);
    font-size: 1.15rem;
    max-width: 620px;
    margin: 0 auto var(--sp-3);
}
.hero-cta {
    display: flex;
    gap: var(--sp-2);
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: var(--sp-4);
}
.hero-demo {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    padding: var(--sp-4);
    max-width: 720px;
    margin: 0 auto;
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow);
}
.hero-demo .demo-text {
    font-family: var(--font-mono);
    font-size: 1.5rem;
    line-height: 1.6;
    color: var(--color-text-muted);
    min-height: 5rem;
    text-align: left;
}
.hero-demo .demo-text .typed { color: var(--color-text); }
.hero-demo .demo-text .caret {
    display: inline-block;
    width: 2px;
    height: 1.5rem;
    background: var(--color-primary);
    vertical-align: text-bottom;
    animation: blink 1s step-end infinite;
    margin-left: 1px;
}
@keyframes blink { 50% { opacity: 0 } }

/* ============== Landing — Features ============== */
.section { padding: var(--sp-5) 0; }
.section-title { text-align: center; margin-bottom: var(--sp-4); }
.features-grid {
    display: grid;
    gap: var(--sp-3);
    grid-template-columns: 1fr;
}
@media (min-width: 768px) { .features-grid { grid-template-columns: repeat(3, 1fr); } }
.feature-card {
    background: var(--color-surface);
    padding: var(--sp-3);
    border-radius: var(--radius);
    border: 1px solid var(--color-border);
    text-align: center;
    transition: transform var(--t-med), border-color var(--t-med);
}
.feature-card:hover { transform: translateY(-4px); border-color: var(--color-primary); }
.feature-icon {
    width: 64px; height: 64px;
    border-radius: 50%;
    background: rgba(226,183,20,0.12);
    color: var(--color-primary);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.6rem;
    margin-bottom: var(--sp-2);
}
.feature-card h3 { margin-bottom: 8px; }
.feature-card p { color: var(--color-text-muted); margin: 0; }

/* ============== Landing — Live ticker ============== */
.live-ticker {
    background: var(--color-surface);
    padding: var(--sp-3);
    border-radius: var(--radius);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--sp-3);
    border: 1px solid var(--color-border);
    text-align: center;
    margin-top: var(--sp-4);
}
.ticker-stat .num {
    font-size: 2.4rem;
    font-weight: 700;
    color: var(--color-primary);
    font-family: var(--font-mono);
}
.ticker-stat .lbl { color: var(--color-text-muted); font-size: 0.85rem; text-transform: uppercase; letter-spacing: 1px; }

/* ============== Landing — Mini Leaderboard ============== */
.mini-leaderboard {
    background: var(--color-surface);
    border-radius: var(--radius);
    border: 1px solid var(--color-border);
    overflow: hidden;
}
.mini-leaderboard table { width: 100%; border-collapse: collapse; }
.mini-leaderboard th,
.mini-leaderboard td {
    padding: 14px var(--sp-2);
    text-align: left;
    border-bottom: 1px solid var(--color-border);
}
.mini-leaderboard th { color: var(--color-text-muted); font-size: 0.8rem; text-transform: uppercase; letter-spacing: 1px; font-weight: 500; }
.mini-leaderboard tr:last-child td { border-bottom: 0; }
.mini-leaderboard .rank-cell { width: 60px; font-weight: 700; color: var(--color-primary); font-family: var(--font-mono); }
.mini-leaderboard .wpm-cell  { font-family: var(--font-mono); font-weight: 600; color: var(--color-text); }

/* ============== Generic table ============== */
.data-table { width: 100%; border-collapse: collapse; background: var(--color-surface); border-radius: var(--radius); overflow: hidden; }
.data-table th, .data-table td { padding: 12px 16px; text-align: left; border-bottom: 1px solid var(--color-border); }
.data-table th { color: var(--color-text-muted); font-weight: 500; font-size: 0.8rem; text-transform: uppercase; letter-spacing: 1px; }
.data-table tr:hover td { background: rgba(255,255,255,0.02); }
.data-table tr:last-child td { border-bottom: 0; }
.table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; border-radius: var(--radius); }

/* Highlighted row (current user on leaderboard) */
.data-table tr.is-self td { background: rgba(226,183,20,0.08); }

/* ============== Scroll fade-in animations ============== */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity .6s ease, transform .6s ease;
}
.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.001ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.001ms !important;
        scroll-behavior: auto !important;
    }
    .fade-in { opacity: 1; transform: none; }
}

/* ============== 404 page ============== */
.page-404 {
    text-align: center;
    padding: var(--sp-6) var(--sp-2);
}
.page-404 h1 {
    font-size: clamp(5rem, 18vw, 9rem);
    color: var(--color-primary);
    margin-bottom: 0;
    font-family: var(--font-mono);
}
.page-404 p { color: var(--color-text-muted); margin-bottom: var(--sp-3); }