/* --- GC Ads Components --- */

/* === CONTAINER === */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-pad);
}

/* === TYPOGRAPHY === */
.h1, h1 { font-size: var(--fs-h1); font-weight: var(--fw-bold); text-transform: uppercase; letter-spacing: var(--ls-heading); }
.h2, h2 { font-size: var(--fs-h2); font-weight: var(--fw-bold); text-transform: uppercase; letter-spacing: var(--ls-heading); }
.h3, h3 { font-size: var(--fs-h3); font-weight: var(--fw-semibold); }
.h4, h4 { font-size: var(--fs-h4); font-weight: var(--fw-semibold); }
.h5, h5 { font-size: var(--fs-h5); font-weight: var(--fw-medium); }
.h6, h6 { font-size: var(--fs-h6); font-weight: var(--fw-medium); }
.text-sm { font-size: var(--fs-small); }
.text-caption { font-size: var(--fs-caption); }
.text-secondary { color: var(--c-text-secondary); }
.text-mono { font-family: var(--font-mono); }
.text-center { text-align: center; }

/* === BUTTONS === */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--sp-sm);
    padding: 12px 32px;
    border-radius: var(--radius-md);
    font-weight: var(--fw-semibold);
    font-size: var(--fs-body);
    transition: var(--transition-base);
    white-space: nowrap;
    min-height: 44px;
}
.btn-primary {
    background: var(--g-primary);
    color: var(--c-text-on-dark);
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}
.btn-primary:active { transform: translateY(0) scale(0.98); }

.btn-secondary {
    background: transparent;
    border: 2px solid var(--c-navy);
    color: var(--c-navy);
    padding: 10px 30px;
}
.btn-secondary:hover {
    background: var(--c-navy);
    color: var(--c-text-on-dark);
}

.btn-ghost {
    background: transparent;
    color: var(--c-steel);
    padding: 12px 24px;
    text-decoration: underline;
    text-underline-offset: 3px;
}
.btn-ghost:hover { color: var(--c-navy); }

.btn-sm { padding: 8px 20px; font-size: var(--fs-small); min-height: 36px; }
.btn-lg { padding: 16px 40px; font-size: var(--fs-h6); }
.btn:disabled, .btn.disabled { opacity: 0.4; cursor: not-allowed; pointer-events: none; }
.btn.loading { opacity: 0.6; cursor: wait; pointer-events: none; }

/* === CARDS === */
.card {
    background: var(--c-bg-white);
    border-radius: var(--radius-lg);
    padding: var(--sp-lg);
    box-shadow: var(--shadow-md);
    transition: var(--transition-base);
}
.card-hover:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

/* Metric card (dashboard) */
.metric-card {
    background: var(--c-bg-white);
    border-radius: var(--radius-lg);
    padding: var(--sp-lg);
    box-shadow: var(--shadow-md);
}
.metric-card .metric-label {
    font-size: var(--fs-small);
    color: var(--c-text-secondary);
    margin-bottom: var(--sp-xs);
}
.metric-card .metric-value {
    font-family: var(--font-mono);
    font-size: 2rem;
    font-weight: var(--fw-bold);
    color: var(--c-text-primary);
}
.metric-card .metric-change {
    font-size: var(--fs-small);
    font-family: var(--font-mono);
    margin-top: var(--sp-xs);
}
.metric-change.positive { color: var(--c-success); }
.metric-change.negative { color: var(--c-error); }
.metric-change.neutral { color: var(--c-text-secondary); }

/* === FORMS === */
.input, .textarea, .select {
    width: 100%;
    border: 1px solid var(--c-border);
    border-radius: var(--radius-md);
    padding: 12px 16px;
    font-size: var(--fs-body);
    color: var(--c-text-primary);
    background: var(--c-bg-white);
    transition: border-color var(--duration-fast) ease;
}
.input:focus, .textarea:focus, .select:focus {
    outline: none;
    border-color: var(--c-navy);
    box-shadow: 0 0 0 3px rgba(31,44,67,0.1);
}
.input.error, .textarea.error { border-color: var(--c-error); }
.input::placeholder, .textarea::placeholder { color: var(--c-text-disabled); }
.textarea { min-height: 100px; resize: vertical; }
.form-group { margin-bottom: var(--sp-md); }
.form-label {
    display: block;
    font-size: var(--fs-small);
    font-weight: var(--fw-medium);
    color: var(--c-text-secondary);
    margin-bottom: var(--sp-xs);
}
.form-error {
    font-size: var(--fs-caption);
    color: var(--c-error);
    margin-top: var(--sp-xs);
}

/* === BADGES === */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 12px;
    border-radius: var(--radius-full);
    font-size: var(--fs-caption);
    font-weight: var(--fw-semibold);
}
.badge-success { background: #E8F5E9; color: #2E7D32; }
.badge-error { background: #FFEBEE; color: #C62828; }
.badge-warning { background: #FFF3E0; color: #EF6C00; }
.badge-info { background: #E3F2FD; color: #1565C0; }
.badge-neutral { background: #F5F5F5; color: #616161; }

/* === TABLES === */
.table-wrap { overflow-x: auto; }
.table { width: 100%; border-collapse: collapse; }
.table th {
    background: #F5F5F5;
    font-weight: var(--fw-semibold);
    font-size: var(--fs-small);
    text-align: left;
    padding: 12px 16px;
    border-bottom: 2px solid var(--c-border);
}
.table td {
    padding: 12px 16px;
    border-bottom: 1px solid var(--c-border-light);
    font-size: var(--fs-small);
}
.table tbody tr:hover { background: var(--c-surface-hover); }

/* === MODAL === */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    backdrop-filter: blur(4px);
    z-index: var(--z-overlay);
    display: none;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--duration-normal) var(--ease-out);
}
.modal-overlay.active { display: flex; opacity: 1; }
.modal {
    background: var(--c-bg-white);
    border-radius: var(--radius-xl);
    padding: var(--sp-xl);
    max-width: 500px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-xl);
    transform: translateY(20px);
    transition: transform var(--duration-normal) var(--ease-out);
}
.modal-overlay.active .modal { transform: translateY(0); }
.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--sp-lg);
}
.modal-close {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    color: var(--c-text-secondary);
    transition: var(--transition-base);
}
.modal-close:hover { background: #F5F5F5; color: var(--c-text-primary); }

/* === FEEDBACK MESSAGES === */
.feedback {
    padding: var(--sp-md) var(--sp-lg);
    border-radius: var(--radius-md);
    display: flex;
    align-items: flex-start;
    gap: var(--sp-sm);
}
.feedback-success { background: #E8F5E9; color: #2E7D32; }
.feedback-error { background: #FFEBEE; color: #C62828; }
.feedback-warning { background: #FFF3E0; color: #EF6C00; }
.feedback-info { background: #E3F2FD; color: #1565C0; }

/* === SKELETON LOADING === */
.skeleton {
    background: linear-gradient(90deg, #F0F0F0 25%, #E0E0E0 50%, #F0F0F0 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: var(--radius-sm);
}
@keyframes shimmer {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* === SECTION UTILITIES === */
.section { padding: var(--section-pad-y) 0; }
.section-alt { background: var(--c-bg-main); }

/* === GRID UTILITIES === */
.grid { display: grid; gap: var(--grid-gap); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 1023px) {
    .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
}
@media (min-width: 1024px) and (max-width: 1439px) {
    .grid-4 { grid-template-columns: repeat(2, 1fr); }
}

/* === FLEX UTILITIES === */
.flex { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.flex-col { flex-direction: column; }
.gap-sm { gap: var(--sp-sm); }
.gap-md { gap: var(--sp-md); }
.gap-lg { gap: var(--sp-lg); }
.gap-xl { gap: var(--sp-xl); }