/* xgrokmax — Soft dark theme, easy on the eyes */

:root {
    --bg: #111318;
    --bg-raised: #181b22;
    --bg-card: #1c1f28;
    --bg-card-hover: #22262f;
    --bg-inset: #161920;
    --border: #2a2e3a;
    --border-hover: #3d8bfd55;
    --text: #cdd1da;
    --text-bright: #e8eaf0;
    --text-dim: #787e90;
    --text-label: #5c6272;
    --accent: #3d8bfd;
    --accent-soft: rgba(61, 139, 253, 0.10);
    --accent-border: rgba(61, 139, 253, 0.25);
    --score-high: #34d399;
    --score-high-bg: rgba(52, 211, 153, 0.08);
    --score-mid: #fbbf24;
    --score-mid-bg: rgba(251, 191, 36, 0.08);
    --score-low: #f87171;
    --score-low-bg: rgba(248, 113, 113, 0.08);
    --link: #60a5fa;
    --radius: 10px;
    --radius-sm: 6px;
    --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', 'Consolas', monospace;
}

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

body {
    font-family: var(--font);
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    line-height: 1.65;
    font-size: 14px;
    -webkit-font-smoothing: antialiased;
}

/* ─── LOGIN ──────────────────────────────────────── */

.login-body {
    display: flex;
    align-items: center;
    justify-content: center;
    background:
        radial-gradient(ellipse at 50% 30%, rgba(61,139,253,0.04) 0%, transparent 70%),
        var(--bg);
}

.login-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 2.5rem 2rem;
    width: 100%;
    max-width: 360px;
    text-align: center;
}

.login-logo {
    font-size: 1.6rem;
    font-weight: 700;
    letter-spacing: 3px;
    color: var(--text-dim);
    margin-bottom: 0.15rem;
}

.login-logo span {
    color: var(--accent);
    font-weight: 800;
}

.login-sub {
    color: var(--text-label);
    font-size: 0.8rem;
    letter-spacing: 1px;
    text-transform: uppercase;
    margin-bottom: 2rem;
}

.form-group {
    margin-bottom: 0.85rem;
}

.form-group input {
    width: 100%;
    padding: 0.7rem 0.9rem;
    background: var(--bg-inset);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text);
    font-family: var(--font);
    font-size: 0.9rem;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.form-group input:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 2px var(--accent-soft);
}

.form-group input::placeholder {
    color: var(--text-label);
}

.btn-login {
    width: 100%;
    padding: 0.7rem;
    background: var(--accent);
    border: none;
    border-radius: var(--radius-sm);
    color: #fff;
    font-family: var(--font);
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: opacity 0.2s;
    margin-top: 0.5rem;
}

.btn-login:hover {
    opacity: 0.85;
}

.alert {
    background: rgba(248, 113, 113, 0.08);
    border: 1px solid rgba(248, 113, 113, 0.2);
    color: var(--score-low);
    padding: 0.55rem 0.9rem;
    border-radius: var(--radius-sm);
    font-size: 0.82rem;
    margin-bottom: 1rem;
}

/* ─── TOPBAR ─────────────────────────────────────── */

.topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.6rem 1.25rem;
    background: var(--bg-raised);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
    gap: 1rem;
}

.topbar-left, .topbar-right {
    flex-shrink: 0;
}

.topbar-center {
    flex: 1;
    display: flex;
    justify-content: center;
}

.logo {
    font-size: 1rem;
    font-weight: 700;
    letter-spacing: 2px;
    color: var(--text-dim);
}

.logo span {
    color: var(--accent);
    font-weight: 800;
}

.file-select {
    background: var(--bg-inset);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text);
    font-family: var(--font);
    padding: 0.45rem 0.8rem;
    font-size: 0.82rem;
    min-width: 260px;
    max-width: 480px;
    width: 100%;
    cursor: pointer;
}

.file-select:focus {
    outline: none;
    border-color: var(--accent);
}

.btn-logout {
    color: var(--text-label);
    text-decoration: none;
    font-size: 0.75rem;
    padding: 0.35rem 0.7rem;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    transition: all 0.2s;
}

.btn-logout:hover {
    color: var(--score-low);
    border-color: rgba(248, 113, 113, 0.3);
}

/* ─── META BAR ───────────────────────────────────── */

.meta-bar {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 0 0.5rem;
    font-size: 0.8rem;
    color: var(--text-dim);
    flex-wrap: wrap;
}

.meta-bar .meta-topic {
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--text-bright);
}

.meta-bar .meta-badge {
    background: var(--accent-soft);
    color: var(--accent);
    border: 1px solid var(--accent-border);
    padding: 0.15rem 0.6rem;
    border-radius: 20px;
    font-size: 0.72rem;
    font-weight: 600;
}

/* ─── CARDS GRID ─────────────────────────────────── */

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0.75rem 1.25rem 3rem;
}

.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(480px, 1fr));
    gap: 1rem;
}

/* ─── CARD ───────────────────────────────────────── */

.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.1rem 1.25rem;
    transition: border-color 0.25s, box-shadow 0.25s;
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
}

.card:hover {
    border-color: var(--border-hover);
    box-shadow: 0 2px 16px rgba(61, 139, 253, 0.06);
}

/* Card section labels */
.card-label {
    font-size: 0.62rem;
    font-weight: 700;
    letter-spacing: 1.2px;
    text-transform: uppercase;
    color: var(--text-label);
    margin-bottom: 0.15rem;
}

/* Header: author + score */
.card-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 0.75rem;
}

.card-author {
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--text-bright);
}

.card-bio {
    font-size: 0.72rem;
    color: var(--text-label);
    margin-top: 0.2rem;
    line-height: 1.4;
}

.card-score {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.95rem;
    border: 2px solid;
}

.score-high {
    color: var(--score-high);
    border-color: var(--score-high);
    background: var(--score-high-bg);
}

.score-mid {
    color: var(--score-mid);
    border-color: var(--score-mid);
    background: var(--score-mid-bg);
}

.score-low {
    color: var(--score-low);
    border-color: var(--score-low);
    background: var(--score-low-bg);
}

/* Tweet text */
.card-text {
    font-size: 0.82rem;
    color: var(--text);
    line-height: 1.7;
    background: var(--bg-inset);
    padding: 0.7rem 0.9rem;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
    word-break: break-word;
    max-height: 130px;
    overflow-y: auto;
}

.card-text::-webkit-scrollbar {
    width: 4px;
}

.card-text::-webkit-scrollbar-track {
    background: transparent;
}

.card-text::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 4px;
}

/* Summary */
.card-summary {
    font-size: 0.78rem;
    color: var(--text-dim);
    font-style: italic;
    line-height: 1.55;
}

/* Why interesting */
.card-why {
    font-size: 0.78rem;
    color: var(--accent);
    padding: 0.5rem 0.75rem;
    background: var(--accent-soft);
    border-left: 2px solid var(--accent-border);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    line-height: 1.55;
}

/* Footer: engagement + link */
.card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: auto;
    padding-top: 0.5rem;
    border-top: 1px solid var(--border);
    font-size: 0.75rem;
    color: var(--text-dim);
}

.card-engagement {
    display: flex;
    gap: 1rem;
}

.card-engagement span {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    font-weight: 500;
}

.eng-likes { color: #f87171; }
.eng-rt { color: #34d399; }
.eng-replies { color: #60a5fa; }

.eng-icon {
    font-size: 0.75rem;
}

.card-link a {
    color: var(--link);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.75rem;
    transition: opacity 0.2s;
}

.card-link a:hover {
    opacity: 0.7;
    text-decoration: underline;
}

.card-lang {
    display: inline-block;
    font-size: 0.65rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 0.1rem 0.4rem;
    border-radius: 3px;
    background: var(--bg-inset);
    border: 1px solid var(--border);
    color: var(--text-label);
}

/* ─── EMPTY STATE ────────────────────────────────── */

.empty-state {
    text-align: center;
    padding: 4rem 1rem;
    color: var(--text-label);
}

.empty-hint {
    font-size: 0.82rem;
    margin-top: 0.4rem;
    color: var(--text-label);
}

/* ─── RESPONSIVE ─────────────────────────────────── */

@media (max-width: 768px) {
    .topbar {
        flex-direction: column;
        gap: 0.5rem;
        padding: 0.6rem 0.75rem;
    }

    .topbar-center {
        width: 100%;
    }

    .file-select {
        min-width: 0;
        width: 100%;
    }

    .cards-grid {
        grid-template-columns: 1fr;
    }

    .container {
        padding: 0.75rem;
    }

    .meta-bar {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.4rem;
    }
}

@media (max-width: 400px) {
    .login-card {
        margin: 1rem;
        padding: 2rem 1.5rem;
    }
}