/* FlowVault — Main Stylesheet */
:root {
    --bg: #0f172a;
    --surface: #1e293b;
    --border: #334155;
    --text: #f1f5f9;
    --text-secondary: #94a3b8;
    --accent: #6366f1;
    --accent-hover: #4f46e5;
    --green: #22c55e;
    --red: #ef4444;
    --radius: 8px;
}

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

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
}

/* Navigation */
.navbar {
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    padding: 0 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 56px;
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-brand a {
    color: var(--text);
    text-decoration: none;
    font-weight: 700;
    font-size: 1.2rem;
}

.nav-links {
    display: flex;
    gap: 4px;
    align-items: center;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 0.9rem;
    transition: all 0.15s;
}

.nav-links a:hover, .nav-links a.active {
    color: var(--text);
    background: rgba(99,102,241,0.1);
}

.nav-user {
    color: var(--text-secondary);
    font-size: 0.85rem;
    margin: 0 8px;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 24px;
}

h2 {
    margin: 0 0 24px;
    font-size: 1.5rem;
}

h3 {
    margin: 0 0 12px;
    font-size: 1.1rem;
}

/* Buttons */
button, .btn-primary, .btn-outline, .btn-sm {
    font-family: inherit;
    cursor: pointer;
}

.btn-primary {
    background: var(--accent);
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: var(--radius);
    font-size: 0.9rem;
    font-weight: 500;
    transition: background 0.15s;
}

.btn-primary:hover { background: var(--accent-hover); }

.btn-outline {
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border);
    padding: 10px 20px;
    border-radius: var(--radius);
    font-size: 0.9rem;
    transition: all 0.15s;
}

.btn-outline:hover {
    color: var(--text);
    border-color: var(--text-secondary);
}

.btn-sm {
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 0.8rem;
    border: 1px solid var(--border);
    background: var(--surface);
    color: var(--text);
    cursor: pointer;
}

.btn-sm:hover {
    background: var(--border);
}

/* Cards */
.card {
    background: var(--surface);
    border-radius: 12px;
    padding: 24px;
    border: 1px solid var(--border);
}

/* Typography */
.positive { color: var(--green); }
.negative, .neg { color: var(--red); }
.pos { color: var(--green); }

/* Responsive */
@media (max-width: 768px) {
    .container { padding: 16px; }
    .navbar {
        padding: 0 12px;
        overflow-x: auto;
    }
    .nav-links { gap: 2px; }
    .nav-links a { padding: 4px 8px; font-size: 0.8rem; }
    .nav-user { display: none; }
}

@media (max-width: 480px) {
    h2 { font-size: 1.2rem; }
    .card { padding: 16px; }
}