/* 
   OOOTURONGAZ | Corporate Style 
   Theme: Petroleum Noir
*/

:root {
    --primary: #050b14;    /* Deep Blue-Black */
    --secondary: #0a192f;  /* Dark Navy */
    --gold: #c5a059;       /* Corporate Gold */
    --gold-hover: #b08d4b;
    --text: #ffffff;
    --text-dim: rgba(255, 255, 255, 0.7);
    --border: rgba(255, 255, 255, 0.1);
    --bg-light: #ffffff;
    --text-dark: #050b14;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--primary);
    color: var(--text);
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3, h4 {
    font-family: 'Playfair Display', serif;
    font-weight: 900;
    line-height: 1.2;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    display: block;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.py-100 { padding: 100px 0; }
.mt-30 { margin-top: 30px; }
.mt-50 { margin-top: 50px; }
.mb-20 { margin-bottom: 20px; }

/* Grid Layouts */
.grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 50px;
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.grid-4 {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.text-center { text-align: center; }
.align-center { align-items: center; }
.bg-dark { background-color: var(--secondary); }
.bg-gold { background-color: var(--gold); }
.text-dark { color: var(--text-dark); }
.opacity-80 { opacity: 0.8; }
.opacity-60 { opacity: 0.6; }
.opacity-40 { opacity: 0.4; }
.text-sm { font-size: 14px; }
.text-xs { font-size: 12px; }
.rounded { border-radius: 8px; }
.shadow { box-shadow: 0 20px 40px rgba(0,0,0,0.3); }

/* Buttons */
.btn-primary {
    background-color: var(--gold);
    color: var(--primary);
    padding: 12px 24px;
    border-radius: 4px;
    font-weight: 700;
    text-transform: uppercase;
    font-size: 13px;
    letter-spacing: 1px;
}

.btn-primary:hover {
    background-color: white;
}

.btn-gold {
    background-color: var(--gold);
    color: var(--primary);
    padding: 16px 32px;
    border-radius: 4px;
    font-weight: 700;
    display: inline-block;
}

.btn-outline {
    border: 1px solid white;
    padding: 16px 32px;
    border-radius: 4px;
    font-weight: 700;
    display: inline-block;
}

.btn-outline:hover {
    background-color: white;
    color: var(--primary);
}

.btn-primary-dark {
    background-color: var(--primary);
    color: white;
    padding: 16px 40px;
    border-radius: 4px;
    font-weight: 700;
    display: inline-block;
}

/* Header */
.main-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background-color: rgba(5, 11, 20, 0.95);
    border-bottom: 1px solid var(--border);
    backdrop-filter: blur(10px);
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 900;
    font-size: 20px;
    letter-spacing: 2px;
}

.logo-icon {
    width: 28px;
    height: 38px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.logo-icon svg {
    width: 100%;
    height: 100%;
}

.nav-menu ul {
    display: flex;
    align-items: center;
    gap: 30px;
}

.nav-menu a {
    font-size: 13px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-dim);
}

.nav-menu a:hover, .nav-menu a.active {
    color: var(--gold);
}

/* Hero Slider */
.hero {
    height: 100vh;
    overflow: hidden;
    position: relative;
}

.slider {
    height: 100%;
    width: 100%;
}

.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 1s ease-in-out;
}

.slide.active {
    opacity: 1;
    visibility: visible;
}

.slide-content {
    max-width: 800px;
}

.slide-content h1 {
    font-size: 72px;
    margin-bottom: 20px;
}

.slide-content p {
    font-size: 20px;
    color: var(--text-dim);
    margin-bottom: 40px;
}

.hero-btns {
    display: flex;
    gap: 20px;
}

.slider-dots {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 12px;
    z-index: 10;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 10%;
    border: 1px solid var(--gold);
    cursor: pointer;
    transition: var(--transition);
}

.dot.active {
    background-color: var(--gold);
    width: 30px;
}

/* Section Decor */
.eyebrow {
    color: var(--gold);
    text-transform: uppercase;
    letter-spacing: 3px;
    font-weight: 700;
    font-size: 12px;
    display: block;
    margin-bottom: 15px;
}

/* Service Cards */
.service-card {
    background-color: rgba(255,255,255,0.03);
    padding: 40px;
    border: 1px solid var(--border);
    border-radius: 4px;
    transition: var(--transition);
}

.service-card:hover {
    background-color: rgba(255,255,255,0.06);
    transform: translateY(-5px);
    border-color: var(--gold);
}

.card-icon {
    font-size: 40px;
    margin-bottom: 20px;
}

.service-card h3 {
    font-size: 24px;
    margin-bottom: 15px;
}

.service-card p {
    color: var(--text-dim);
    font-size: 15px;
}

/* Check List */
.check-list li {
    margin-top: 15px;
    position: relative;
    padding-left: 30px;
}

.check-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--gold);
    font-weight: 900;
}

/* Stats */
.stat-grid {
    display: flex;
    gap: 40px;
}

.stat-num {
    display: block;
    font-size: 40px;
    font-weight: 900;
    font-family: 'Playfair Display', serif;
    color: var(--gold);
}

.stat-label {
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 1px;
    opacity: 0.5;
}

/* Footer */
.main-footer {
    background-color: #03080f;
    border-top: 1px solid var(--border);
    padding-top: 80px;
    padding-bottom: 40px;
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.footer-links, .footer-contact {
    display: flex;
    flex-direction: column;
}

.footer-links h4, .footer-contact h4 {
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 2.5px;
    margin-bottom: 30px;
    color: var(--gold);
    font-family: 'Inter', sans-serif;
    font-weight: 700;
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.footer-links a {
    font-size: 14px;
    color: var(--text-dim);
    display: inline-block;
}

.footer-contact-info {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.footer-contact-info p {
    font-size: 14px;
    color: var(--text-dim);
    line-height: 1.8;
}

.footer-bottom {
    margin-top: 60px;
    padding-top: 30px;
    border-top: 1px solid var(--border);
    text-align: center;
}

.footer-bottom p {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.3);
    letter-spacing: 1px;
    text-transform: uppercase;
}

/* Mobile Nav Toggle */
.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    background: none;
    border: none;
    cursor: pointer;
}

.menu-toggle span {
    width: 25px;
    height: 2px;
    background-color: white;
    transition: var(--transition);
}

/* Reveal Animation */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* Responsive */
@media (max-width: 992px) {
    .grid-2, .grid-3, .grid-4 {
        grid-template-columns: 1fr;
    }
    
    .slide-content h1 {
        font-size: 48px;
    }

    .nav-menu {
        display: none;
        position: absolute;
        top: 80px;
        left: 0;
        width: 100%;
        background-color: var(--primary);
        padding: 40px 20px;
        border-bottom: 1px solid var(--border);
    }

    .nav-menu.active {
        display: block;
    }

    .nav-menu ul {
        flex-direction: column;
        align-items: flex-start;
    }

    .menu-toggle {
        display: flex;
    }
}