/* ═══════════════════════════════════════════════════════
   BubbleStone Design System — Tech Noir Theme
   linkedin.bubblestone.ai
   ═══════════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Syne:wght@700;800&family=Outfit:wght@300;400;600&family=JetBrains+Mono:wght@400&display=swap');

:root {
    /* Core palette */
    --bs-bg-deep: #0f0f1a;
    --bs-bg-surface: #1a1a2e;
    --bs-bg-elevated: #252542;
    --bs-bg-hover: #2f2f52;

    /* Text */
    --bs-text-primary: #e2e8f0;
    --bs-text-muted: #94a3b8;
    --bs-text-accent: #f8fafc;

    /* Accent — Indigo/Cyan dual accent */
    --bs-accent-primary: #6366f1;
    --bs-accent-secondary: #22d3ee;
    --bs-accent-warm: #f59e0b;
    --bs-accent-danger: #ef4444;
    --bs-accent-success: #10b981;

    /* Effects */
    --bs-glow: 0 0 20px rgba(99, 102, 241, 0.25);
    --bs-glow-cyan: 0 0 15px rgba(34, 211, 238, 0.2);
    --bs-glow-success: 0 0 15px rgba(16, 185, 129, 0.2);
    --bs-border-subtle: 1px solid rgba(99, 102, 241, 0.15);
    --bs-gradient-hero: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #22d3ee 100%);

    /* Typography */
    --bs-font-heading: 'Syne', sans-serif;
    --bs-font-body: 'Outfit', sans-serif;
    --bs-font-mono: 'JetBrains Mono', monospace;

    /* Spacing & shape */
    --bs-space: 8px;
    --bs-radius: 12px;
    --bs-radius-sm: 6px;
    --bs-radius-pill: 999px;

    /* Motion */
    --bs-ease: cubic-bezier(0.16, 1, 0.3, 1);
    --bs-duration: 250ms;
}

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

body {
    font-family: var(--bs-font-body);
    font-weight: 400;
    background: var(--bs-bg-deep);
    color: var(--bs-text-primary);
    line-height: 1.6;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
}

a { color: var(--bs-accent-secondary); text-decoration: none; transition: color var(--bs-duration) var(--bs-ease); }
a:hover { color: #67e8f9; }

::selection { background: rgba(99, 102, 241, 0.3); color: var(--bs-text-accent); }

/* ── Topbar ── */
.topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 calc(var(--bs-space) * 4);
    height: 60px;
    background: rgba(15, 15, 26, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: var(--bs-border-subtle);
    position: sticky;
    top: 0;
    z-index: 100;
}
.logo {
    font-family: var(--bs-font-heading);
    font-weight: 800;
    font-size: 1.15rem;
    color: var(--bs-text-accent);
    letter-spacing: 0.02em;
}
.logo:hover { color: var(--bs-accent-secondary); }
.topbar-right { display: flex; align-items: center; gap: calc(var(--bs-space) * 2); }
.user {
    color: var(--bs-text-muted);
    font-size: 0.85rem;
    font-weight: 300;
}

/* ── Container ── */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: calc(var(--bs-space) * 4) calc(var(--bs-space) * 3);
}

/* ── Buttons ── */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 20px;
    border: none;
    border-radius: var(--bs-radius-sm);
    font-family: var(--bs-font-body);
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--bs-duration) var(--bs-ease);
    color: var(--bs-text-primary);
    background: var(--bs-bg-elevated);
    letter-spacing: 0.01em;
}
.btn:hover { background: var(--bs-bg-hover); transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn-sm { padding: 7px 14px; font-size: 0.8rem; }
.btn-full { width: 100%; justify-content: center; margin-bottom: calc(var(--bs-space) * 1); }

.btn-primary { background: var(--bs-accent-primary); color: white; }
.btn-primary:hover { box-shadow: var(--bs-glow); transform: translateY(-1px); }

.btn-validate { background: rgba(16, 185, 129, 0.12); color: var(--bs-accent-success); border: 1px solid rgba(16, 185, 129, 0.2); }
.btn-validate:hover { background: rgba(16, 185, 129, 0.22); box-shadow: var(--bs-glow-success); }

.btn-reject { background: rgba(239, 68, 68, 0.1); color: var(--bs-accent-danger); border: 1px solid rgba(239, 68, 68, 0.15); }
.btn-reject:hover { background: rgba(239, 68, 68, 0.2); }

.btn-publish { background: rgba(34, 211, 238, 0.1); color: var(--bs-accent-secondary); border: 1px solid rgba(34, 211, 238, 0.15); }
.btn-publish:hover { background: rgba(34, 211, 238, 0.2); box-shadow: var(--bs-glow-cyan); }

.btn-ghost { background: transparent; border: var(--bs-border-subtle); }
.btn-ghost:hover { background: var(--bs-bg-elevated); border-color: var(--bs-accent-primary); }

/* ── Login ── */
.login-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: calc(var(--bs-space) * 2);
    background: 
        radial-gradient(ellipse at 30% 20%, rgba(99, 102, 241, 0.08) 0%, transparent 50%),
        radial-gradient(ellipse at 70% 80%, rgba(34, 211, 238, 0.06) 0%, transparent 50%),
        var(--bs-bg-deep);
}
.login-card {
    background: var(--bs-bg-surface);
    border: var(--bs-border-subtle);
    border-radius: var(--bs-radius);
    padding: calc(var(--bs-space) * 5);
    width: 100%;
    max-width: 400px;
    text-align: center;
    animation: fadeUp 0.5s var(--bs-ease);
}
.login-card h1 {
    font-family: var(--bs-font-heading);
    font-weight: 800;
    font-size: 1.6rem;
    color: var(--bs-text-accent);
    margin-bottom: 4px;
    letter-spacing: 0.02em;
}
.subtitle {
    color: var(--bs-text-muted);
    font-weight: 300;
    font-size: 0.9rem;
    margin-bottom: calc(var(--bs-space) * 4);
}
.form-group { margin-bottom: calc(var(--bs-space) * 2); text-align: left; }
.form-group label {
    display: block;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--bs-text-muted);
    margin-bottom: 6px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}
.form-group input {
    width: 100%;
    padding: 12px 14px;
    background: var(--bs-bg-elevated);
    border: var(--bs-border-subtle);
    border-radius: var(--bs-radius-sm);
    color: var(--bs-text-primary);
    font-family: var(--bs-font-body);
    font-size: 0.95rem;
    transition: all var(--bs-duration) var(--bs-ease);
}
.form-group input:focus {
    outline: none;
    border-color: var(--bs-accent-primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}
.form-group input::placeholder { color: var(--bs-text-muted); font-style: italic; }

/* ── Flash ── */
.flash-messages { margin-bottom: calc(var(--bs-space) * 2); }
.flash {
    padding: 12px 16px;
    border-radius: var(--bs-radius-sm);
    margin-bottom: calc(var(--bs-space) * 1);
    font-size: 0.9rem;
    animation: fadeUp 0.3s var(--bs-ease);
}
.flash-error { background: rgba(239, 68, 68, 0.1); color: var(--bs-accent-danger); border: 1px solid rgba(239, 68, 68, 0.2); }
.flash-success { background: rgba(16, 185, 129, 0.1); color: var(--bs-accent-success); border: 1px solid rgba(16, 185, 129, 0.2); }

/* ── Dashboard ── */
.dashboard-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: calc(var(--bs-space) * 4);
    flex-wrap: wrap;
    gap: calc(var(--bs-space) * 2);
}
.dashboard-header h1 {
    font-family: var(--bs-font-heading);
    font-weight: 800;
    font-size: 2rem;
    color: var(--bs-text-accent);
    letter-spacing: -0.01em;
}

/* Stats */
.stats { display: flex; gap: calc(var(--bs-space) * 1.5); flex-wrap: wrap; }
.stat {
    padding: 8px 16px;
    background: var(--bs-bg-surface);
    border-radius: var(--bs-radius-pill);
    font-family: var(--bs-font-mono);
    font-size: 0.8rem;
    border: var(--bs-border-subtle);
    color: var(--bs-text-muted);
    transition: all var(--bs-duration) var(--bs-ease);
}
.stat:hover { border-color: var(--bs-accent-primary); color: var(--bs-text-primary); }

/* Filters */
.filters {
    display: flex;
    gap: calc(var(--bs-space) * 1);
    margin-bottom: calc(var(--bs-space) * 4);
    flex-wrap: wrap;
}
.filter-btn {
    padding: 8px 18px;
    border-radius: var(--bs-radius-pill);
    font-family: var(--bs-font-body);
    font-size: 0.85rem;
    font-weight: 400;
    color: var(--bs-text-muted);
    background: transparent;
    border: var(--bs-border-subtle);
    cursor: pointer;
    transition: all var(--bs-duration) var(--bs-ease);
    text-decoration: none;
}
.filter-btn:hover { color: var(--bs-text-primary); border-color: var(--bs-accent-primary); background: rgba(99, 102, 241, 0.06); }
.filter-btn.active {
    background: var(--bs-accent-primary);
    color: white;
    border-color: var(--bs-accent-primary);
    font-weight: 600;
    box-shadow: var(--bs-glow);
}

/* ── Posts Grid ── */
.posts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(380px, 1fr));
    gap: calc(var(--bs-space) * 2.5);
}
.post-card {
    background: var(--bs-bg-surface);
    border: var(--bs-border-subtle);
    border-radius: var(--bs-radius);
    padding: calc(var(--bs-space) * 3);
    transition: all var(--bs-duration) var(--bs-ease);
    animation: fadeUp 0.4s var(--bs-ease) both;
}
.post-card:nth-child(1) { animation-delay: 0ms; }
.post-card:nth-child(2) { animation-delay: 50ms; }
.post-card:nth-child(3) { animation-delay: 100ms; }
.post-card:nth-child(4) { animation-delay: 150ms; }
.post-card:nth-child(5) { animation-delay: 200ms; }
.post-card:nth-child(6) { animation-delay: 250ms; }

.post-card:hover {
    border-color: var(--bs-accent-primary);
    box-shadow: var(--bs-glow);
    transform: translateY(-3px);
}

.post-meta {
    display: flex;
    align-items: center;
    gap: calc(var(--bs-space) * 1);
    margin-bottom: calc(var(--bs-space) * 1.5);
    font-size: 0.8rem;
}
.post-date { color: var(--bs-text-muted); font-family: var(--bs-font-mono); font-size: 0.75rem; }
.post-score {
    color: var(--bs-accent-warm);
    font-family: var(--bs-font-mono);
    font-weight: 400;
}

/* Badges */
[class^="badge-"] {
    padding: 3px 10px;
    border-radius: var(--bs-radius-pill);
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    font-family: var(--bs-font-body);
}
.badge-proposed { background: rgba(245, 158, 11, 0.12); color: var(--bs-accent-warm); }
.badge-validated { background: rgba(16, 185, 129, 0.12); color: var(--bs-accent-success); }
.badge-published { background: rgba(34, 211, 238, 0.12); color: var(--bs-accent-secondary); }
.badge-rejected { background: rgba(239, 68, 68, 0.12); color: var(--bs-accent-danger); }

.post-title {
    font-family: var(--bs-font-heading);
    font-weight: 700;
    font-size: 1.05rem;
    margin-bottom: calc(var(--bs-space) * 1);
    line-height: 1.35;
    letter-spacing: -0.01em;
}
.post-title a { color: var(--bs-text-accent); }
.post-title a:hover { color: var(--bs-accent-secondary); }

.post-preview {
    font-size: 0.85rem;
    font-weight: 300;
    color: var(--bs-text-muted);
    margin-bottom: calc(var(--bs-space) * 1.5);
    line-height: 1.6;
    white-space: pre-line;
}
.post-thumbnail { margin-bottom: calc(var(--bs-space) * 1.5); overflow: hidden; border-radius: var(--bs-radius-sm); }
.post-thumbnail img {
    width: 100%;
    max-height: 200px;
    object-fit: cover;
    transition: transform 0.4s var(--bs-ease);
}
.post-card:hover .post-thumbnail img { transform: scale(1.03); }
.post-actions { display: flex; gap: calc(var(--bs-space) * 1); flex-wrap: wrap; }

/* ── Detail ── */
.detail-header {
    display: flex;
    align-items: center;
    gap: calc(var(--bs-space) * 2);
    margin-bottom: calc(var(--bs-space) * 3);
}
.back-link {
    color: var(--bs-text-muted);
    font-size: 0.9rem;
    font-weight: 400;
    transition: color var(--bs-duration) var(--bs-ease);
}
.back-link:hover { color: var(--bs-accent-secondary); }

.detail-layout {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: calc(var(--bs-space) * 3);
    align-items: start;
}
.detail-main h1 {
    font-family: var(--bs-font-heading);
    font-weight: 800;
    font-size: 1.75rem;
    color: var(--bs-text-accent);
    margin-bottom: calc(var(--bs-space) * 1.5);
    line-height: 1.25;
    letter-spacing: -0.02em;
}
.detail-meta {
    display: flex;
    gap: calc(var(--bs-space) * 2);
    color: var(--bs-text-muted);
    font-size: 0.85rem;
    margin-bottom: calc(var(--bs-space) * 3);
    flex-wrap: wrap;
    font-weight: 300;
}

/* ── Editor sections ── */
.post-editor, .image-section, .article-section, .sources-section {
    background: var(--bs-bg-surface);
    border: var(--bs-border-subtle);
    border-radius: var(--bs-radius);
    padding: calc(var(--bs-space) * 3);
    margin-bottom: calc(var(--bs-space) * 2);
    transition: border-color var(--bs-duration) var(--bs-ease);
}
.post-editor:hover, .image-section:hover { border-color: rgba(99, 102, 241, 0.3); }

.editor-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: calc(var(--bs-space) * 1.5);
}
.editor-header h2 {
    font-family: var(--bs-font-heading);
    font-weight: 700;
    font-size: 1rem;
    color: var(--bs-text-accent);
    letter-spacing: 0.01em;
}
.char-count {
    font-family: var(--bs-font-mono);
    font-size: 0.75rem;
    color: var(--bs-text-muted);
}

.post-textarea, .prompt-textarea {
    width: 100%;
    min-height: 250px;
    padding: calc(var(--bs-space) * 2);
    background: var(--bs-bg-elevated);
    border: var(--bs-border-subtle);
    border-radius: var(--bs-radius-sm);
    color: var(--bs-text-primary);
    font-family: var(--bs-font-body);
    font-weight: 400;
    font-size: 0.9rem;
    line-height: 1.7;
    resize: vertical;
    white-space: pre-wrap;
    transition: all var(--bs-duration) var(--bs-ease);
}
.prompt-textarea { min-height: 80px; font-size: 0.85rem; }
.post-textarea:focus, .prompt-textarea:focus {
    outline: none;
    border-color: var(--bs-accent-primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.12);
}
.post-textarea[readonly] { opacity: 0.6; cursor: default; }

.editor-actions {
    display: flex;
    gap: calc(var(--bs-space) * 1);
    margin-top: calc(var(--bs-space) * 1.5);
}

/* ── Image ── */
.image-preview { text-align: center; }
.image-preview img {
    max-width: 100%;
    border-radius: var(--bs-radius-sm);
    margin-bottom: calc(var(--bs-space) * 1.5);
}
.image-actions { display: flex; gap: calc(var(--bs-space) * 1); justify-content: center; }
.no-image {
    text-align: center;
    padding: calc(var(--bs-space) * 4);
    color: var(--bs-text-muted);
    font-weight: 300;
}
.image-prompt-section { margin-top: calc(var(--bs-space) * 2); }
.image-prompt-section label {
    display: block;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--bs-text-muted);
    margin-bottom: 6px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* ── Article ── */
.article-content {
    background: var(--bs-bg-elevated);
    padding: calc(var(--bs-space) * 2);
    border-radius: var(--bs-radius-sm);
    font-family: var(--bs-font-body);
    font-size: 0.85rem;
    font-weight: 300;
    overflow-x: auto;
    white-space: pre-wrap;
    line-height: 1.7;
    color: var(--bs-text-primary);
}

/* ── Sources ── */
.sources-section h2 {
    font-family: var(--bs-font-heading);
    font-weight: 700;
    font-size: 1rem;
    margin-bottom: calc(var(--bs-space) * 1.5);
}
.sources-list { display: flex; flex-direction: column; gap: 6px; }
.source-link {
    font-size: 0.85rem;
    word-break: break-all;
    font-family: var(--bs-font-mono);
    font-size: 0.8rem;
    color: var(--bs-accent-secondary);
    opacity: 0.8;
    transition: opacity var(--bs-duration) var(--bs-ease);
}
.source-link:hover { opacity: 1; }

/* ── Sidebar ── */
.action-panel, .info-panel {
    background: var(--bs-bg-surface);
    border: var(--bs-border-subtle);
    border-radius: var(--bs-radius);
    padding: calc(var(--bs-space) * 3);
    margin-bottom: calc(var(--bs-space) * 2);
}
.action-panel h3, .info-panel h3 {
    font-family: var(--bs-font-heading);
    font-weight: 700;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--bs-text-muted);
    margin-bottom: calc(var(--bs-space) * 2);
}
.info-panel dl { font-size: 0.85rem; }
.info-panel dt {
    color: var(--bs-text-muted);
    font-weight: 300;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    margin-top: calc(var(--bs-space) * 1.5);
}
.info-panel dd {
    font-weight: 600;
    color: var(--bs-text-accent);
    font-family: var(--bs-font-mono);
    font-size: 0.85rem;
}
.published-info { color: var(--bs-accent-success); font-size: 0.9rem; font-weight: 600; }

/* ── Empty state ── */
.empty-state {
    text-align: center;
    padding: calc(var(--bs-space) * 8) calc(var(--bs-space) * 2);
    color: var(--bs-text-muted);
    font-weight: 300;
}
.empty-state p:first-child { font-size: 1.1rem; margin-bottom: calc(var(--bs-space) * 1); }
.text-muted { color: var(--bs-text-muted); font-weight: 300; }

/* ── Loading ── */
.loading { opacity: 0.5; pointer-events: none; }

/* ── Toast ── */
.toast {
    position: fixed;
    bottom: calc(var(--bs-space) * 3);
    right: calc(var(--bs-space) * 3);
    padding: 12px 20px;
    border-radius: var(--bs-radius-sm);
    font-family: var(--bs-font-body);
    font-size: 0.9rem;
    font-weight: 600;
    z-index: 1000;
    animation: slideInRight 0.35s var(--bs-ease);
    backdrop-filter: blur(8px);
}
.toast-success { background: rgba(16, 185, 129, 0.9); color: white; box-shadow: var(--bs-glow-success); }
.toast-error { background: rgba(239, 68, 68, 0.9); color: white; }

/* ── Animations ── */
@keyframes fadeUp {
    from { opacity: 0; transform: translateY(12px); }
    to { opacity: 1; transform: translateY(0); }
}
@keyframes slideInRight {
    from { opacity: 0; transform: translateX(20px); }
    to { opacity: 1; transform: translateX(0); }
}

/* ── Reduced motion ── */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }
}

/* ── Responsive ── */
@media (max-width: 768px) {
    .container { padding: calc(var(--bs-space) * 2); }
    .posts-grid { grid-template-columns: 1fr; }
    .detail-layout { grid-template-columns: 1fr; }
    .detail-sidebar { order: -1; }
    .dashboard-header { flex-direction: column; align-items: flex-start; }
    .dashboard-header h1 { font-size: 1.5rem; }
    .topbar { padding: 0 calc(var(--bs-space) * 2); }
    .login-card { padding: calc(var(--bs-space) * 3); }
}

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: var(--bs-bg-deep); }
::-webkit-scrollbar-thumb { background: var(--bs-bg-elevated); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--bs-bg-hover); }