/* ═══════════════════════════════════════════════════════
   Components — Premium primitives
   ═══════════════════════════════════════════════════════ */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: 0 18px;
    font-family: var(--font-family);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-bold);
    line-height: 1;
    border-radius: var(--radius-full);
    border: 1px solid transparent;
    cursor: pointer;
    transition: all var(--transition-base);
    white-space: nowrap;
    height: 40px;
    -webkit-user-select: none;
    user-select: none;
}

.btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.btn svg,
.btn i {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent), var(--accent-strong));
    color: var(--text-inverse);
    border-color: var(--accent);
    box-shadow: 0 14px 28px color-mix(in srgb, var(--accent) 24%, transparent);
}

.btn-primary:hover:not(:disabled) {
    background: linear-gradient(135deg, var(--accent-hover), var(--accent));
    border-color: var(--accent-hover);
    transform: translateY(-1px);
}

.btn-secondary {
    background-color: var(--bg-elevated);
    color: var(--text-primary);
    border-color: var(--border-light);
}

.btn-secondary:hover:not(:disabled) {
    background-color: var(--bg-hover);
}

.btn-ghost {
    background-color: transparent;
    color: var(--text-secondary);
    border-color: transparent;
}

.btn-ghost:hover:not(:disabled) {
    background-color: var(--bg-hover);
    color: var(--text-primary);
}

.btn-danger {
    background-color: var(--bg-elevated);
    color: var(--error);
    border-color: var(--border-light);
}

.btn-danger:hover:not(:disabled) {
    background-color: var(--error-light);
    border-color: var(--error);
}

.btn-icon {
    width: 40px;
    height: 40px;
    padding: 0;
    border-radius: var(--radius-lg);
    background: var(--bg-elevated);
    color: var(--text-secondary);
    border: 1px solid var(--border-light);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: background-color var(--transition-fast), color var(--transition-fast);
}

.btn-icon:hover {
    background-color: var(--bg-hover);
    color: var(--text-primary);
}

.btn-icon svg {
    width: 20px;
    height: 20px;
}

.input-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.input-group label {
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-bold);
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.input {
    width: 100%;
    height: 46px;
    padding: 0 var(--space-4);
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    color: var(--text-primary);
    background-color: var(--bg-input);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-field);
    transition: border-color var(--transition-fast), background-color var(--transition-fast), box-shadow var(--transition-fast);
    box-shadow: inset 0 1px 0 rgba(255,255,255,0.08);
}

.input:focus {
    outline: none;
    border-color: var(--border-focus);
    box-shadow: var(--shadow-glow);
}

.input::placeholder {
    color: var(--text-tertiary);
}

textarea.input {
    height: auto;
    min-height: 46px;
    padding: var(--space-3) var(--space-4);
    resize: vertical;
    line-height: var(--line-height);
}

.card {
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-2xl);
    padding: 22px;
    transition: border-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
}

.card:hover {
    border-color: var(--border);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-3);
}

.card-header h3,
.card-header h4 {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-bold);
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.kpi-card {
    background: linear-gradient(180deg, color-mix(in srgb, var(--bg-card) 90%, white 10%), var(--bg-card));
    border: 1px solid var(--border-light);
    border-radius: var(--radius-2xl);
    padding: 22px;
    transition: border-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
    min-width: 0;
    box-shadow: var(--shadow-sm);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.kpi-card:hover {
    border-color: var(--border);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.kpi-label {
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-bold);
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-2);
}

.kpi-value {
    font-size: 2rem;
    font-weight: var(--font-weight-extrabold);
    color: var(--text-primary);
    line-height: 1;
    letter-spacing: -0.05em;
}

.kpi-sub {
    font-size: var(--font-size-xs);
    color: var(--text-tertiary);
    margin-top: var(--space-2);
}

.badge {
    display: inline-flex;
    align-items: center;
    padding: 2px 8px;
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-bold);
    border-radius: var(--radius-full);
    background-color: var(--bg-tertiary);
    color: var(--text-secondary);
    letter-spacing: 0.03em;
}

.badge-accent {
    background-color: var(--accent-light);
    color: var(--accent-text);
}

.badge-success {
    background-color: var(--success-light);
    color: var(--success);
}

.badge-warning {
    background-color: var(--warning-light);
    color: var(--warning);
}

.select {
    appearance: none;
    height: 40px;
    padding: 0 40px 0 14px;
    font-family: var(--font-family);
    font-size: var(--font-size-sm);
    color: var(--text-primary);
    background-color: var(--bg-input);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-card);
    cursor: pointer;
    background-image: url("data:image/svg+xml,%3Csvg width='12' height='12' viewBox='0 0 24 24' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='m6 9 6 6 6-6' stroke='%2386868B' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 14px center;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
    box-shadow: inset 0 1px 0 rgba(255,255,255,0.08);
}

.select:focus {
    outline: none;
    border-color: var(--border-focus);
    box-shadow: var(--shadow-glow);
}

.divider {
    height: 1px;
    background-color: var(--border-light);
    border: none;
    margin: var(--space-4) 0;
}

.toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    z-index: 9999;
}

.toast {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 18px;
    background: var(--glass);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    font-family: var(--font-family);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    opacity: 0;
    transform: translateY(-8px) scale(0.96);
    transition: all 400ms cubic-bezier(0.16, 1, 0.3, 1);
    color: var(--text-primary);
    min-width: 220px;
}

.toast.show {
    opacity: 1;
    transform: translateY(0) scale(1);
}

.toast-error svg {
    color: var(--error);
}

.toast-success svg {
    color: var(--success);
}

.toast-warning svg {
    color: var(--warning);
}

.toast-info svg {
    color: var(--accent);
}

.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--space-16) var(--space-8);
    text-align: center;
    color: var(--text-tertiary);
}

.empty-state svg {
    width: 48px;
    height: 48px;
    margin-bottom: var(--space-4);
    opacity: 0.4;
}