/*
 * BALANTIUM COMPONENTS - Spectral Coherence UI
 * Dark, sophisticated components with living system energy
 * Mathematical precision: Golden ratio proportions, Fibonacci spacing
 */

/* === BUTTONS === */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-5);
    font-size: var(--text-base);
    font-weight: var(--weight-semibold);
    border-radius: var(--radius-md);
    transition: all var(--transition-slow);
    cursor: pointer;
    text-decoration: none;
    border: 2px solid transparent;
    white-space: nowrap;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

.btn-primary {
    background: var(--gradient-primary);
    background-size: 200% 200%;
    color: var(--text-primary);
    box-shadow: var(--shadow-md), var(--glow-subtle);
    animation: gradient-shift 8s ease infinite;
}

.btn-primary:hover {
    box-shadow: var(--shadow-lg), var(--glow-violet);
    transform: translateY(-2px);
}

.btn-secondary {
    background: var(--surface-glass);
    color: var(--text-primary);
    border-color: var(--border);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    border-color: var(--primary);
    box-shadow: var(--glow-subtle);
    background: var(--surface-elevated);
}

.btn-accent {
    background: linear-gradient(135deg, var(--accent) 0%, var(--primary) 100%);
    color: var(--midnight-graphite);
    font-weight: var(--weight-bold);
    box-shadow: var(--shadow-md), var(--glow-aqua);
}

.btn-accent:hover {
    box-shadow: var(--shadow-lg), var(--glow-aqua);
    transform: translateY(-2px) scale(1.02);
}

.btn-large {
    padding: var(--space-3) var(--space-8);
    font-size: var(--text-lg);
}

.btn-small {
    padding: var(--space-1) var(--space-3);
    font-size: var(--text-sm);
}

/* === CARDS === */
.card {
    background: var(--surface-glass);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    padding: var(--space-phi-2);
    transition: all var(--transition-slow);
    backdrop-filter: blur(20px);
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--gradient-primary);
    opacity: 0;
    transition: opacity var(--transition-slow);
}

.card:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-lg), var(--glow-subtle);
    transform: translateY(-4px);
    background: var(--surface-elevated);
}

.card:hover::before {
    opacity: 1;
}

/* === METRIC CARDS === */
.metric-card {
    text-align: center;
    padding: 2.5rem;
    background: rgba(26, 28, 36, 0.95);
    border-radius: 16px;
    border: 2px solid #7A3BE4;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(20px);
    box-shadow: 0 0 20px rgba(122, 59, 228, 0.3);
}

.metric-card:hover {
    border-color: #9A5BFF;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.6), 0 0 40px rgba(122, 59, 228, 0.6);
    transform: translateY(-4px);
}

.metric-value {
    font-size: 2.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 1rem;
    line-height: 1;
    position: relative;
    z-index: 1;
}

.metric-label {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-primary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--space-1);
}

.metric-description {
    font-size: var(--text-xs);
    color: var(--text-secondary);
}

/* === FEATURE CARDS === */
.feature-card {
    background: rgba(26, 28, 36, 0.95);
    padding: 2.5rem;
    border-radius: 16px;
    border: 2px solid #7A3BE4;
    transition: all 0.3s ease;
    backdrop-filter: blur(20px);
    position: relative;
    text-align: center;
    overflow: visible;
    box-shadow: 0 0 20px rgba(122, 59, 228, 0.3);
}

.feature-card:hover {
    border-color: #9A5BFF;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.6), 0 0 40px rgba(122, 59, 228, 0.6);
    transform: translateY(-4px);
}

.feature-icon {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    display: block;
    filter: drop-shadow(0 0 10px rgba(122, 59, 228, 0.5));
    line-height: 1;
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
    font-weight: 700;
    text-align: center;
}

.feature-metric {
    font-size: 1rem;
    font-weight: 600;
    color: var(--accent);
    margin-bottom: 1rem;
    text-align: center;
}

.feature-card p {
    color: var(--text-secondary);
    line-height: 1.7;
    text-align: center;
}

/* === FORMS === */
.form-group {
    margin-bottom: var(--space-5);
}

.form-group label {
    display: block;
    font-size: var(--text-sm);
    font-weight: var(--weight-medium);
    color: var(--text-primary);
    margin-bottom: var(--space-2);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: var(--space-3) var(--space-3);
    font-size: var(--text-base);
    color: var(--text-primary);
    background: var(--surface-glass);
    border: 2px solid var(--border);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    backdrop-filter: blur(10px);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: var(--glow-subtle);
    background: var(--surface-elevated);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.form-status {
    margin-top: var(--space-5);
    padding: var(--space-3);
    border-radius: var(--radius-md);
    font-size: var(--text-sm);
    font-weight: var(--weight-medium);
    display: none;
    border: 1px solid;
}

.form-status.success {
    display: block;
    background: rgba(49, 227, 224, 0.1);
    color: var(--accent);
    border-color: var(--accent);
}

.form-status.error {
    display: block;
    background: rgba(255, 107, 157, 0.1);
    color: var(--error);
    border-color: var(--error);
}

/* === BADGES === */
.badge {
    display: inline-block;
    padding: var(--space-1) var(--space-3);
    font-size: var(--text-xs);
    font-weight: var(--weight-semibold);
    border-radius: var(--radius-full);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.badge-primary {
    background: rgba(122, 59, 228, 0.2);
    color: var(--primary);
    border: 1px solid var(--primary);
}

.badge-accent {
    background: rgba(49, 227, 224, 0.2);
    color: var(--accent);
    border: 1px solid var(--accent);
}

/* === TABS === */
.tabs-nav {
    display: flex;
    gap: var(--space-1);
    border-bottom: 2px solid var(--border);
    margin-bottom: var(--space-8);
    overflow-x: auto;
}

.tab-btn {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-5);
    font-size: var(--text-base);
    font-weight: var(--weight-medium);
    color: var(--text-secondary);
    background: transparent;
    border: none;
    border-bottom: 3px solid transparent;
    cursor: pointer;
    transition: all var(--transition-base);
    white-space: nowrap;
    position: relative;
}

.tab-btn::before {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 3px;
    background: var(--gradient-primary);
    transition: width var(--transition-slow);
}

.tab-btn:hover {
    color: var(--text-primary);
    background: var(--surface-glass);
}

.tab-btn.active {
    color: var(--primary);
}

.tab-btn.active::before {
    width: 100%;
}

.tab-icon {
    font-size: var(--text-xl);
    filter: drop-shadow(0 0 8px rgba(122, 59, 228, 0.3));
}

.tab-panel {
    display: none;
}

.tab-panel.active {
    display: block;
    animation: fadeIn 0.5s ease;
}

/* === ANIMATIONS === */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity var(--transition-slower), transform var(--transition-slower);
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
        transform: scale(1);
    }
    50% {
        opacity: 0.8;
        transform: scale(0.98);
    }
}

.pulse {
    animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

@keyframes spin {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

.spin {
    animation: spin 1s linear infinite;
}

/* === GLASSMORPHISM EFFECTS === */
.glass {
    background: var(--surface-glass);
    backdrop-filter: blur(20px) saturate(180%);
    border: 1px solid var(--border);
}

.glass-strong {
    background: rgba(30, 36, 86, 0.4);
    backdrop-filter: blur(40px) saturate(200%);
    border: 1px solid var(--border-glow);
}