@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&family=Outfit:wght@600;700;800&display=swap');

:root {
    /* Industrial Color Palette - Hvac Jackson */
    --primary-dark: #0f172a;
    --secondary-dark: #1e293b;
    --accent: #f59e0b;
    /* Safety Amber */
    --accent-hover: #d97706;
    --accent-glow: rgba(245, 158, 11, 0.3);
    --text-white: #f8fafc;
    --text-muted: #94a3b8;
    --glass-bg: rgba(30, 41, 59, 0.7);
    --glass-border: rgba(255, 255, 255, 0.1);

    /* Typography */
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;

    /* Layout */
    --container-max-width: 1200px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background-color: var(--primary-dark);
    color: var(--text-white);
    font-family: var(--font-body);
    line-height: 1.6;
    overflow-x: hidden;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-heading);
    line-height: 1.1;
    margin-bottom: 1.5rem;
    font-weight: 700;
}

a {
    color: inherit;
    text-decoration: none;
    transition: all 0.3s ease;
}

/* Glassmorphism */
.glass-panel {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
}

/* 3D Hover Cards */
.hover-card {
    transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275), box-shadow 0.3s ease;
}

.hover-card:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.5);
    border-color: var(--accent);
}

/* Core Components */
.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 24px;
}

.btn {
    display: inline-block;
    padding: 16px 36px;
    border-radius: 8px;
    font-weight: 800;
    text-align: center;
    cursor: pointer;
    border: none;
    font-size: 1rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent) 0%, #fbbf24 100%);
    color: #0f172a;
    box-shadow: 0 4px 15px var(--accent-glow);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px var(--accent-glow);
    filter: brightness(1.1);
}

/* Header */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 2px solid var(--accent);
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 24px;
}

.nav-menu {
    display: none;
    gap: 30px;
}

@media (min-width: 1024px) {
    .nav-menu {
        display: flex;
    }
}

.nav-menu a {
    font-weight: 600;
    font-size: 0.9rem;
    letter-spacing: 0.5px;
}

.nav-menu a:hover {
    color: var(--accent);
}

/* Mobile Sticky Call Banner */
.mobile-call-banner {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background: var(--accent);
    color: #0f172a;
    text-align: center;
    padding: 18px;
    z-index: 2000;
    font-weight: 900;
    font-size: 1.1rem;
    box-shadow: 0 -5px 25px rgba(0, 0, 0, 0.5);
}

@media (max-width: 768px) {
    .mobile-call-banner {
        display: block;
    }
}

/* Grid Systems */
.hero-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 60px;
    align-items: center;
}

@media (min-width: 1024px) {
    .hero-grid {
        grid-template-columns: 1.2fr 0.8fr;
    }
}

.responsive-grid-2 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

/* Authority Content */
.authority-content h1 {
    font-size: clamp(2.5rem, 6vw, 4rem);
    margin-bottom: 1.5rem;
    background: linear-gradient(to right, #fff, #94a3b8);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.authority-content h2 {
    font-size: clamp(1.8rem, 4vw, 2.5rem);
    color: var(--accent);
    margin-top: 3rem;
}

.authority-content p {
    font-size: 1.15rem;
    margin-bottom: 2rem;
    color: var(--text-muted);
}

/* Utility */
.text-accent {
    color: var(--accent);
}

.bg-secondary {
    background: var(--secondary-dark);
}

.img-frame {
    position: relative;
    padding: 15px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.5);
}

.img-frame img {
    display: block;
    width: 100%;
    height: auto;
    border-radius: 12px;
}

.badge-float {
    position: absolute;
    bottom: -20px;
    right: -20px;
    background: var(--accent);
    color: var(--primary-dark);
    padding: 15px 25px;
    border-radius: 12px;
    font-weight: 900;
    font-size: 0.8rem;
    box-shadow: 0 10px 30px var(--accent-glow);
    z-index: 2;
}