/**
 * Glowstone - Sustainability Page Styles
 * Responsive, SEO-friendly, clean
 */

:root {
    --sus-gold: #c9a84c;
    --sus-green: #3aaa8c;
    --sus-cream: #f5f0ea;
    --sus-black: #0d0c0b;
}

/* Scroll offset */
.tech-hero,
#main-content,
.sus-stats-section {
    scroll-margin-top: clamp(70px, 10vw, 90px);
}

/* Hero — own imagery (Technical Specification uses tech-spec.css for its hero) */
.tech-hero-bg {
    background: #1a1a1a url('../files/files/sustainbility-poster.jpg') center / cover no-repeat;
}

.tech-hero-bg video {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Stats section - content-focused cards */
.sus-stats-section {
    background: var(--sus-black);
    padding: 80px 0;
    position: relative;
    overflow: hidden;
}

.sus-stats-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(58, 170, 140, 0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(58, 170, 140, 0.04) 1px, transparent 1px);
    background-size: 60px 60px;
    pointer-events: none;
}

.sus-stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.5rem;
}

.sus-stat-card {
    background: rgba(235, 228, 216, 0.03);
    border: 1px solid rgba(58, 170, 140, 0.1);
    padding: 2rem 1.75rem;
    text-align: center;
    position: relative;
    overflow: hidden;
    transition: border-color 0.4s, background 0.4s;
}

.sus-stat-card::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--sus-green), transparent);
    transform: scaleX(0);
    transition: transform 0.6s ease;
}

.sus-stat-card.in-view::before {
    transform: scaleX(1);
}

.sus-stat-card.in-view {
    border-color: rgba(58, 170, 140, 0.25);
    background: rgba(58, 170, 140, 0.03);
}

.sus-stat-icon {
    font-size: 1.8rem;
    margin-bottom: 1rem;
    display: block;
}

.sus-stat-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--sus-cream);
    margin-bottom: 0.35rem;
}

.sus-stat-card p {
    font-size: 0.8rem;
    font-weight: 400;
    color: rgba(245, 240, 234, 0.82);
    line-height: 1.7;
    margin: 0;
}

/* Section heading (shared with former commitments block) */
.sus-stats-section .sus-commitments-header {
    text-align: center;
    margin-bottom: 2.5rem;
    position: relative;
    z-index: 1;
}

.sus-sec-label {
    font-size: 0.72rem;
    letter-spacing: 0.28em;
    text-transform: uppercase;
    color: var(--sus-green);
    display: block;
    margin-bottom: 0.7rem;
}

.sus-sec-title {
    font-size: clamp(2.15rem, 3.75vw, 3.2rem);
    font-weight: 600;
    color: var(--sus-cream);
    margin: 0;
}

.sus-sec-title em {
    font-style: italic;
    color: var(--sus-gold);
}

/* Responsive */
@media (max-width: 991px) {
    .sus-stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .sus-stats-section {
        padding: 60px 0;
    }
}

@media (max-width: 767px) {
    .sus-stats-grid {
        grid-template-columns: 1fr;
    }
    .sus-stats-section {
        padding: 40px 0;
    }
}

@media (max-width: 480px) {
    .sus-stat-card {
        padding: 1.5rem 1.25rem;
    }
    .sus-stat-card h3 {
        font-size: 1.1rem;
    }
    .sus-stat-card p {
        font-size: 0.78rem;
    }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    .sus-stat-card {
        transition: none;
    }
}