/* ══════════════════════════════════════════════════
   Sparkrate — Design System
   ══════════════════════════════════════════════════ */

:root {
    --spark-bg: #0b0f1a;
    --spark-surface: #111827;
    --spark-surface-2: #1a2236;
    --spark-border: #1f2a3f;
    --spark-border-light: #2a3650;
    --spark-text: #f1f5f9;
    --spark-text-muted: #8b97b0;
    --spark-text-dim: #5a6580;
    --spark-accent: #22d3ee;
    --spark-accent-glow: rgba(34, 211, 238, 0.15);
    --spark-green: #34d399;
    --spark-green-glow: rgba(52, 211, 153, 0.15);
    --spark-yellow: #fbbf24;
    --spark-red: #f87171;
    --spark-purple: #a78bfa;
    --spark-gradient: linear-gradient(135deg, #22d3ee, #34d399);
    --spark-radius: 12px;
    --spark-radius-sm: 8px;
    --spark-max-width: 1200px;
    --spark-font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --spark-mono: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', monospace;
}

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

html {
    font-family: var(--spark-font);
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    scroll-behavior: smooth;
}

body {
    background: var(--spark-bg);
    color: var(--spark-text);
    line-height: 1.6;
}

h1, h2, h3, h4, h5, h6 { line-height: 1.2; font-weight: 700; }

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

/* ── Buttons ── */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: var(--spark-radius-sm);
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all 0.2s;
    border: none;
    text-decoration: none;
}
.btn:hover { text-decoration: none; }

.btn-primary {
    background: var(--spark-gradient);
    color: #0b0f1a;
}
.btn-primary:hover {
    box-shadow: 0 0 24px var(--spark-accent-glow), 0 4px 16px rgba(0,0,0,0.3);
    transform: translateY(-1px);
}

.btn-outline {
    background: transparent;
    color: var(--spark-text);
    border: 1px solid var(--spark-border-light);
}
.btn-outline:hover {
    border-color: var(--spark-accent);
    color: var(--spark-accent);
    background: var(--spark-accent-glow);
}

.btn-ghost {
    background: transparent;
    color: var(--spark-text-muted);
}
.btn-ghost:hover { color: var(--spark-text); }

.btn-lg { padding: 14px 28px; font-size: 1.05rem; border-radius: var(--spark-radius); }
.btn-sm { padding: 6px 14px; font-size: 0.85rem; }

/* ── Code blocks ── */
.code-block {
    background: #0d1117;
    border: 1px solid var(--spark-border);
    border-radius: var(--spark-radius);
    padding: 20px 24px;
    overflow-x: auto;
    font-family: var(--spark-mono);
    font-size: 0.875rem;
    line-height: 1.7;
    color: var(--spark-text-muted);
}

.code-block .code-keyword { color: var(--spark-purple); }
.code-block .code-string { color: var(--spark-green); }
.code-block .code-number { color: var(--spark-yellow); }
.code-block .code-comment { color: var(--spark-text-dim); font-style: italic; }
.code-block .code-key { color: var(--spark-accent); }
.code-block .code-url { color: var(--spark-accent); }
.code-block .code-method { color: var(--spark-yellow); font-weight: 600; }
.code-block .code-negative { color: var(--spark-red); }

/* ── Badge ── */
.badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.3px;
}
.badge-accent {
    background: var(--spark-accent-glow);
    color: var(--spark-accent);
    border: 1px solid rgba(34, 211, 238, 0.2);
}
.badge-green {
    background: var(--spark-green-glow);
    color: var(--spark-green);
    border: 1px solid rgba(52, 211, 153, 0.2);
}
.badge-free {
    background: rgba(251, 191, 36, 0.1);
    color: var(--spark-yellow);
    border: 1px solid rgba(251, 191, 36, 0.2);
}

/* ── Cards ── */
.card {
    background: var(--spark-surface);
    border: 1px solid var(--spark-border);
    border-radius: var(--spark-radius);
    padding: 28px 24px;
    transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
}
.card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 32px rgba(0,0,0,0.3);
    border-color: var(--spark-border-light);
}

/* ── Section helpers ── */
.section { padding: 80px 0; }
.section-alt { background: var(--spark-surface); border-top: 1px solid var(--spark-border); border-bottom: 1px solid var(--spark-border); }
.container { max-width: var(--spark-max-width); margin: 0 auto; padding: 0 24px; }
.section-title { font-size: 2rem; text-align: center; margin-bottom: 12px; }
.section-subtitle { text-align: center; color: var(--spark-text-muted); font-size: 1.1rem; margin-bottom: 48px; max-width: 600px; margin-left: auto; margin-right: auto; }

/* ── Animations ── */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}
@keyframes glow {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 1; }
}

/* ── Blazor overrides ── */
h1:focus { outline: none; }
.valid.modified:not([type=checkbox]) { outline: 1px solid var(--spark-green); }
.invalid { outline: 1px solid var(--spark-red); }
.validation-message { color: var(--spark-red); }

.blazor-error-boundary {
    background: var(--spark-red);
    padding: 1rem 1rem 1rem 3.7rem;
    color: white;
    border-radius: var(--spark-radius-sm);
}
.blazor-error-boundary::after { content: "An error has occurred."; }

/* ── Reconnect Toast (replaces default Blazor modal) ── */
.spark-reconnect {
    display: none;
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 10000;
}

/* Show only when Blazor sets the state attributes */
.spark-reconnect[components-reconnect-show="true"],
.spark-reconnect[components-reconnect-rejected],
.spark-reconnect[components-reconnect-failed] {
    display: block;
}

.spark-reconnect-toast {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 18px;
    background: var(--spark-surface);
    border: 1px solid var(--spark-border);
    border-radius: var(--spark-radius);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
    font-size: 0.85rem;
    color: var(--spark-text-muted);
    backdrop-filter: blur(12px);
    animation: slideIn 0.3s ease;
}

.spark-reconnect[components-reconnect-rejected] .spark-reconnect-toast,
.spark-reconnect[components-reconnect-failed] .spark-reconnect-toast {
    border-color: rgba(248, 113, 113, 0.3);
}

/* Spinner */
.spark-reconnect-spinner {
    width: 16px;
    height: 16px;
    border: 2px solid var(--spark-border);
    border-top-color: var(--spark-accent);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    flex-shrink: 0;
}

.spark-reconnect[components-reconnect-rejected] .spark-reconnect-spinner,
.spark-reconnect[components-reconnect-failed] .spark-reconnect-spinner {
    display: none;
}

/* Text changes based on state */
.spark-reconnect[components-reconnect-rejected] .spark-reconnect-text::after { content: "Connection lost. "; }
.spark-reconnect[components-reconnect-failed] .spark-reconnect-text::after { content: "Reconnect failed. "; }

/* Retry button — hidden during reconnecting, visible on failure */
.spark-reconnect-retry {
    display: none;
    padding: 4px 12px;
    background: var(--spark-accent);
    color: var(--spark-bg);
    border: none;
    border-radius: var(--spark-radius-sm);
    font-size: 0.8rem;
    font-weight: 600;
    cursor: pointer;
    flex-shrink: 0;
}
.spark-reconnect-retry:hover { opacity: 0.85; }

.spark-reconnect[components-reconnect-rejected] .spark-reconnect-retry,
.spark-reconnect[components-reconnect-failed] .spark-reconnect-retry {
    display: inline-block;
}

@keyframes slideIn { from { transform: translateY(20px); opacity: 0; } to { transform: translateY(0); opacity: 1; } }
@keyframes spin { to { transform: rotate(360deg); } }