/**
 * Reusable UI components — website + agent platform
 */

/* --- Header & nav --- */

.site-header {
    border-bottom: 1px solid var(--border);
    padding: 16px 0;
    position: relative;
    z-index: 100;
}

.header-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-family: var(--font-mono);
    font-weight: 600;
    font-size: 1.1rem;
}

.nav {
    display: flex;
    gap: 24px;
    align-items: center;
    font-family: var(--font-mono);
    font-size: 0.85rem;
}

.nav a {
    color: var(--text-muted);
    text-decoration: none;
}

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

.theme-icon-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    margin-left: 4px;
    padding: 0;
    background: var(--bg-card);
    border: 1px solid var(--border);
    color: var(--accent);
    cursor: pointer;
    transition: all 0.15s;
    position: relative;
    z-index: 101;
    flex-shrink: 0;
}

.theme-icon-btn:hover {
    border-color: var(--accent);
    box-shadow: 0 0 12px var(--accent-glow);
}

.theme-icon-btn svg { display: none; }

html[data-theme="amber"] .theme-icon-btn .icon-sun { display: block; }
html[data-theme="paper"] .theme-icon-btn .icon-moon { display: block; }

/* --- Buttons --- */

.btn {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    padding: 10px 18px;
    border: 1px solid var(--border);
    background: transparent;
    color: var(--text);
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
    transition: all 0.15s;
}

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

.btn-primary:hover {
    box-shadow: 0 0 20px var(--accent-glow);
}

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

/* --- Terminal surfaces --- */

.terminal-panel,
.hero-terminal,
.terminal-log,
.contact-terminal {
    font-family: var(--font-mono);
    background: var(--bg-card);
    border: 1px solid var(--border);
}

.hero-terminal {
    font-size: 0.82rem;
    padding: 16px 20px;
    overflow-x: auto;
}

.terminal-log {
    font-size: 0.75rem;
    padding: 12px 16px;
    min-height: 100px;
    max-height: 160px;
    overflow-y: auto;
}

.log-line { margin-bottom: 4px; }
.log-line.accent { color: var(--accent); }

.status-bar {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    color: var(--text-muted);
    padding: 8px 12px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    display: inline-block;
}

.status-bar .sep { margin: 0 10px; opacity: 0.4; }

/* --- Agent terminal cards --- */

.agent-card {
    font-family: var(--font-mono);
    text-align: left;
    background: var(--bg-card);
    border: 1px solid var(--border);
    padding: 12px 14px;
    cursor: pointer;
    position: relative;
    transition: all 0.15s;
    color: var(--text);
    width: 100%;
}

.agent-card::before {
    content: '● ● ●';
    display: block;
    font-size: 0.5rem;
    letter-spacing: 2px;
    color: var(--text-muted);
    margin-bottom: 8px;
    opacity: 0.5;
}

.agent-card:hover { border-color: var(--text-muted); }

.agent-card.active {
    border-color: var(--border-active);
    box-shadow: inset 0 0 0 1px var(--accent-dim);
}

.agent-card:not(.active) { opacity: 0.45; }
.agent-card:not(.active) .card-state { color: var(--text-muted); }

.card-title {
    display: block;
    font-size: 0.72rem;
    color: var(--accent);
    margin-bottom: 4px;
}

.card-desc {
    display: block;
    font-size: 0.68rem;
    color: var(--text-muted);
    font-family: var(--font-sans);
}

.card-state {
    position: absolute;
    top: 10px;
    right: 12px;
    font-size: 0.65rem;
    color: var(--success);
}

.domain-picker {
    display: block;
    margin-top: 8px;
    font-size: 0.68rem;
}

.domain-picker select {
    display: block;
    width: 100%;
    margin-top: 4px;
    font-family: var(--font-mono);
    font-size: 0.72rem;
    background: var(--bg);
    color: var(--accent);
    border: 1px solid var(--border);
    padding: 4px 6px;
    cursor: pointer;
}

/* --- Core & integration --- */

.semantic-core {
    background: var(--bg-card);
    border: 2px solid var(--border-active);
    padding: 16px;
    position: relative;
    display: flex;
    flex-direction: column;
}

.semantic-core.running {
    box-shadow: 0 0 30px var(--accent-glow);
}

.core-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 4px;
}

.core-title {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--accent);
}

.core-sub {
    font-size: 0.72rem;
    color: var(--text-muted);
    margin-bottom: 8px;
    font-family: var(--font-sans);
}

.core-graph { flex: 1; width: 100%; min-height: 120px; }
.core-graph .edge { stroke: var(--border); stroke-width: 1; }
.core-graph .dim-edge { opacity: 0.35; }
.core-graph .node { fill: var(--bg); stroke: var(--text-muted); stroke-width: 1; }
.core-graph .node-hub { fill: var(--accent-dim); stroke: var(--accent); stroke-width: 2; }

.integration-layer {
    background: var(--bg);
    border: 1px dashed var(--border-active);
    padding: 10px 14px;
    text-align: center;
    font-family: var(--font-mono);
}

.integration-layer.running {
    box-shadow: 0 0 16px var(--accent-glow);
    border-style: solid;
}

.integration-title {
    display: block;
    font-size: 0.68rem;
    color: var(--accent);
    margin-bottom: 4px;
}

.integration-sub {
    display: block;
    font-size: 0.62rem;
    color: var(--text-muted);
    font-family: var(--font-sans);
}

/* --- MCP chips --- */

.mcp-cmd {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    margin-bottom: 10px;
}

.mcp-connectors {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(9.5rem, 1fr));
    gap: 8px;
    width: 100%;
}

.mcp-chip {
    font-family: var(--font-mono);
    font-size: clamp(0.58rem, 1.1vw, 0.68rem);
    padding: 8px 10px;
    background: var(--bg);
    border: 1px solid var(--border);
    color: var(--text-muted);
    cursor: pointer;
    transition: all 0.15s;
    text-align: center;
    white-space: nowrap;
}

.mcp-chip:hover { border-color: var(--text-muted); }

.mcp-chip.active {
    border-color: var(--accent);
    color: var(--accent);
    background: var(--accent-dim);
    opacity: 1;
}

.mcp-chip[data-mcp]:not(.active) { opacity: 0.4; }

/* --- Forms --- */

.contact-terminal {
    border: 1px solid var(--border);
    padding: 24px;
    background: var(--bg-card);
}

.contact-form,
.dg-form {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.contact-form label,
.dg-form label {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.contact-form .label,
.dg-form .label {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-muted);
}

.contact-form input,
.contact-form textarea,
.dg-form input,
.dg-form textarea,
.dg-input {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    background: var(--bg);
    border: 1px solid var(--border);
    color: var(--text);
    padding: 8px 12px;
}

.contact-form input:focus,
.contact-form textarea:focus,
.dg-form input:focus,
.dg-form textarea:focus,
.dg-input:focus {
    outline: none;
    border-color: var(--accent);
}

.form-meta { font-size: 0.72rem; }

/* --- Content blocks --- */

.about-block,
.dg-panel {
    border: 1px solid var(--border);
    padding: 20px;
    background: var(--bg-card);
}

.about-block h3,
.dg-panel h3 {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--accent);
    margin-bottom: 8px;
}

.about-block p,
.dg-panel p {
    font-size: 0.9rem;
    color: var(--text-muted);
}

.site-footer {
    border-top: 1px solid var(--border);
    padding: 20px 0;
    font-family: var(--font-mono);
    font-size: 0.75rem;
}

/* Platform shell helpers (sidebar + main) */

.dg-shell {
    display: grid;
    grid-template-columns: 280px minmax(0, 1fr);
    min-height: 100vh;
}

.dg-sidebar {
    background: var(--bg-elevated);
    border-right: 1px solid var(--border);
    padding: 16px;
    font-family: var(--font-mono);
    font-size: 0.82rem;
}

.dg-main {
    padding: 16px 20px;
    min-width: 0;
}

.dg-chat-bubble {
    font-family: var(--font-mono);
    font-size: 0.82rem;
    padding: 10px 14px;
    border: 1px solid var(--border);
    background: var(--bg-card);
    margin-bottom: 8px;
    max-width: 85%;
}

.dg-chat-bubble.user {
    margin-left: auto;
    border-color: var(--border-active);
}

.dg-chat-bubble.assistant {
    margin-right: auto;
}

@media (max-width: 768px) {
    .dg-shell { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
    .mcp-connectors { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .mcp-chip { font-size: 0.55rem; }
}