/* ============================================================
   PHE Industrial — Global Theme CSS
   Supplements Tailwind with custom utilities and component styles
   ============================================================ */

/* ── LOGO ── */
/* Logo has white bg — invert it on dark nav for clean display */
nav .logo-img {
    filter: brightness(0) invert(1);
}
/* Keep original colors in footer (dark bg works fine with invert too) */
footer .logo-img {
    filter: brightness(0) invert(1);
}

/* ── HERO VIDEO ── */
.hero-video-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}
.hero-video-bg video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.45;
}

/* ── MATERIAL SYMBOLS ── */
.material-symbols-outlined {
    font-variation-settings: 'FILL' 0, 'wght' 400, 'GRAD' 0, 'opsz' 24;
}
.material-symbols-filled {
    font-variation-settings: 'FILL' 1, 'wght' 400, 'GRAD' 0, 'opsz' 24;
}

/* ── MACHINED EDGE: subtle inset highlight ── */
.machined-edge {
    box-shadow: inset 0 1px 0 0 rgba(255, 255, 255, 0.12);
}

/* ── GLASS PANEL ── */
.glass-panel {
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}

/* ── GLASS CARD (alias) ── */
.glass-card {
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}

/* ── GRADIENTS ── */
.hero-gradient {
    background: linear-gradient(135deg, #003131 0%, #114948 100%);
}
.machined-gradient {
    background: linear-gradient(135deg, #003131 0%, #114948 100%);
}
.industrial-gradient {
    background: linear-gradient(135deg, #003131 0%, #114948 100%);
}

/* ── NAVIGATION ── */
.nav-link {
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 700;
    letter-spacing: -0.025em;
    transition: color 0.2s ease;
}
.nav-link-active {
    color: #f59e0b; /* amber-500 */
    border-bottom: 2px solid #f59e0b;
    padding-bottom: 4px;
}
.nav-link-default {
    color: #134e4a; /* teal-800 */
}
.nav-link-default:hover {
    color: #d97706; /* amber-600 */
}
/* On dark nav (homepage) */
.nav-dark .nav-link-default {
    color: rgba(240, 253, 250, 0.8); /* teal-50/80 */
}
.nav-dark .nav-link-default:hover {
    color: #ffffff;
}

/* ── FOOTER ── */
.footer-link {
    color: rgba(167, 243, 208, 0.7); /* teal-200/70 */
    font-size: 0.875rem;
    letter-spacing: 0.025em;
    transition: color 0.2s ease, transform 0.3s ease;
    display: inline-block;
}
.footer-link:hover {
    color: #f59e0b; /* amber-400 */
    transform: translateX(4px);
}

/* ── BUSY HOURS BARS (contact page) ── */
.busy-bar {
    flex: 1;
    border-radius: 2px 2px 0 0;
    background-color: rgba(17, 73, 72, 0.2); /* primary-container/20 */
    transition: background-color 0.3s ease;
}
.busy-bar.active {
    background-color: #ffc30a; /* secondary-container */
}
.busy-bar:hover {
    background-color: rgba(17, 73, 72, 0.4);
}
.busy-bar.active:hover {
    background-color: #f9be00;
}

/* ── TIMELINE (history page) ── */
.timeline-node {
    width: 1rem;
    height: 1rem;
    background-color: #ffc30a;
    border-radius: 50%;
    box-shadow: 0 0 0 8px rgba(255, 195, 10, 0.2);
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    z-index: 10;
}
.timeline-card {
    background-color: #ffffff;
    padding: 2rem;
    box-shadow: 0 1px 3px rgba(0,0,0,0.08);
    transition: box-shadow 0.3s ease;
}
.timeline-card:hover {
    box-shadow: 0 20px 40px rgba(0,0,0,0.12);
}

/* ── PROCESS STEPS (infra page) ── */
.process-step-circle {
    width: 3rem;
    height: 3rem;
    background-color: #003131;
    color: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    position: relative;
    z-index: 10;
    transition: background-color 0.2s ease;
}
.process-step-circle:hover,
.process-step:hover .process-step-circle {
    background-color: #785a00;
}

/* ── PRODUCT GRID CARDS (catalog page) ── */
.product-card-hover {
    transition: transform 0.2s ease;
}
.product-card-hover:hover {
    transform: translateY(-4px);
}

/* ── SPEC BAR (catalog deep dive) ── */
.spec-bar {
    height: 4px;
    width: 100%;
    background-color: #e2e2e2;
    overflow: hidden;
    margin-top: 0.75rem;
}
.spec-bar-fill {
    height: 100%;
    background-color: #ffc30a;
    transition: width 1s ease;
}

/* ── STAT COUNTER ── */
.stat-number {
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 900;
    color: #ffc30a;
}

/* ── CTA BUTTON PRIMARY ── */
.btn-primary {
    background-color: #003131;
    color: #ffffff;
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 700;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    transition: background-color 0.2s ease, transform 0.1s ease;
}
.btn-primary:hover {
    background-color: #114948;
}
.btn-primary:active {
    transform: scale(0.99);
}

/* ── CTA BUTTON SECONDARY (amber) ── */
.btn-secondary {
    background-color: #ffc30a;
    color: #6d5200;
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 700;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    transition: filter 0.2s ease, transform 0.1s ease;
}
.btn-secondary:hover {
    filter: brightness(1.08);
}
.btn-secondary:active {
    transform: scale(0.98);
}

/* ── SECTION DIVIDER ACCENT ── */
.accent-line {
    height: 4px;
    width: 5rem;
    background-color: #ffc30a;
}

/* ── SCROLL BEHAVIOUR ── */
html {
    scroll-behavior: smooth;
}

/* ── SELECTION ── */
::selection {
    background-color: #ffdf9b;
    color: #251a00;
}

/* ── MOBILE NAV OVERLAY ── */
#mobile-nav {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 49, 49, 0.97);
    z-index: 200;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2rem;
}
#mobile-nav.open {
    display: flex;
}
#mobile-nav a {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 2rem;
    font-weight: 700;
    color: rgba(240, 253, 250, 0.8);
    letter-spacing: -0.025em;
    transition: color 0.2s ease;
}
#mobile-nav a:hover,
#mobile-nav a.active {
    color: #ffc30a;
}
#mobile-nav-close {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    color: rgba(240, 253, 250, 0.6);
    cursor: pointer;
    font-size: 2rem;
    background: none;
    border: none;
}

/* ── ANIMATE ON SCROLL ── */
.anim-fade-up {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}
.anim-fade-up.visible {
    opacity: 1;
    transform: translateY(0);
}
.anim-fade-up.delay-1 { transition-delay: 0.1s; }
.anim-fade-up.delay-2 { transition-delay: 0.2s; }
.anim-fade-up.delay-3 { transition-delay: 0.3s; }
.anim-fade-up.delay-4 { transition-delay: 0.4s; }
.anim-fade-up.delay-5 { transition-delay: 0.5s; }

/* ── BUSY WIDGET LAYOUT ── */
.busy-widget-bars {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    height: 6rem;
    gap: 3px;
}