/* ========================================
   UTILS.CSS - SHARED STYLES
   ======================================== */

/* Page Header */
.page-header {
    padding: var(--space-3xl) 0 var(--space-xl);
    margin-top: 60px;
    color: var(--concrete);
    position: relative;
    overflow: hidden;
}

.page-header--charcoal {
    background: linear-gradient(135deg, var(--charcoal) 0%, var(--charcoal-light) 100%);
}

.page-header--centered {
    text-align: center;
}

.page-title {
    font-size: clamp(3rem, 6vw, 5rem);
    text-transform: uppercase;
    letter-spacing: -0.03em;
    margin-bottom: var(--space-sm);
    position: relative;
    z-index: 1;
}

.page-subtitle {
    font-size: 1.25rem;
    font-weight: 300;
    opacity: 0.9;
    position: relative;
    z-index: 1;
    max-width: 600px;
    margin: 0 auto;
}

/* Card */
.card {
    background: var(--concrete);
    border: 2px solid var(--charcoal);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--steel-blue);
}

.card__link {
    display: block;
    padding: var(--space-lg);
    color: inherit;
    text-decoration: none;
    height: 100%;
}

.card__header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--space-md);
}

.card__title {
    font-size: 1.75rem;
    text-transform: uppercase;
    letter-spacing: -0.02em;
    color: var(--charcoal);
}

.card__description {
    font-size: 1rem;
    line-height: 1.5;
    color: var(--charcoal-light);
    margin-bottom: var(--space-md);
}

/* Tag */
.tag {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.tag--charcoal {
    background: var(--charcoal);
    color: var(--concrete);
}

.tag--steel-blue {
    background: var(--steel-blue);
    color: var(--concrete);
}

/* Timeline */
.timeline {
    position: relative;
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 var(--space-md);
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--warm-gray);
    transform: translateX(-50%);
}

.timeline__item {
    position: relative;
    margin-bottom: var(--space-3xl);
}

.timeline__item::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 50%;
    width: 20px;
    height: 20px;
    background: var(--steel-blue);
    border: 4px solid var(--concrete);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    z-index: 1;
    transition: all var(--transition-fast);
}

.timeline__item:hover::before {
    transform: translate(-50%, -50%) scale(1.3);
    background: var(--accent-orange);
}

/* Responsive */
@media (max-width: 768px) {
    .grid--stacked-mobile {
        grid-template-columns: 1fr;
    }

    .timeline--stacked-mobile::before {
        left: 30px;
    }

    .timeline__item--stacked-mobile {
        grid-template-columns: 100px 1fr;
        gap: var(--space-md);
    }

    .timeline__item--stacked-mobile::before {
        left: 30px;
    }
}