/* =========================================
   GLOBAL RESET + WATER THEME BASE
========================================= */
:root {
    --water-primary: #0077b6;    /* Дълбоко синьо */
    --water-light: #00b4d8;      /* Светло синьо/циан */
    --water-accent: #90e0ef;     /* Акцент */
    --water-dark: #03045e;       /* Тъмно синьо (почти черно) */
    
    --bg-dark-1: #050510;
    --bg-dark-2: #0a0a1a;
    --text-light: #f5f5f5;
    --text-muted: #b0b0b0;
}

body {
    font-family: 'Segoe UI', Roboto, sans-serif;
    background: linear-gradient(180deg, var(--bg-dark-1) 0%, var(--bg-dark-2) 100%);
    color: var(--text-light);
    letter-spacing: 0.3px;
    overflow-x: hidden;
}

section {
    padding: 80px 0;
}

html {
    scroll-behavior: smooth;
}

/* =========================================
   TOP BAR
========================================= */
.top-bar {
    background: rgba(3, 4, 94, 0.9); /* Dark Blue */
    border-bottom: 1px solid rgba(0, 119, 182, 0.3);
    color: var(--text-light);
    padding: 10px 0;
    font-size: 14px;
}

.top-bar a {
    color: var(--water-light);
    font-weight: 600;
    text-decoration: none;
    transition: color 0.3s;
}

.top-bar a:hover {
    color: #fff;
}

/* =========================================
   NAVIGATION
========================================= */
.main-navbar {
    background: rgba(5, 5, 16, 0.95) !important;
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    padding: 18px 0;
    transition: 0.3s ease;
}

.navbar-brand {
    font-weight: 800;
    letter-spacing: 2px;
    font-size: 22px;
    color: #fff !important;
    text-transform: uppercase;
}

.navbar-nav .nav-link {
    color: #d0d0d0 !important;
    font-weight: 500;
    margin-left: 20px;
    position: relative;
    transition: 0.3s;
}

.navbar-nav .nav-link:hover {
    color: var(--water-light) !important;
}

.navbar-nav .nav-link::after {
    content: "";
    position: absolute;
    width: 0%;
    height: 2px;
    background: var(--water-light);
    bottom: -5px;
    left: 0;
    transition: 0.3s;
}

.navbar-nav .nav-link:hover::after {
    width: 100%;
}

/* =========================================
   WATER BUTTON (PREMIUM STYLE)
========================================= */
.btn-water {
    background: linear-gradient(135deg, var(--water-primary), var(--water-light));
    color: #fff !important;
    font-weight: 700;
    padding: 14px 34px;
    border-radius: 50px; /* Rounder for modern look */
    border: none;
    box-shadow: 0 8px 25px rgba(0, 119, 182, 0.4);
    transition: all 0.3s ease;
}

.btn-water:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 35px rgba(0, 180, 216, 0.5);
    background: linear-gradient(135deg, var(--water-light), var(--water-primary));
}

/* =========================================
   HERO SECTION (WATER THEME)
========================================= */
.water-hero {
    position: relative;
    min-height: 90vh;
    /* Falls back to gradient if image missing */
    background: linear-gradient(135deg, #03045e 0%, #023e8a 100%);
    background: url('/assets/images/drilling-rig.jpg') center/cover no-repeat; 
    display: flex;
    align-items: center;
    text-align: center;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        120deg,
        rgba(3, 4, 94, 0.9) 0%,
        rgba(0, 119, 182, 0.6) 50%,
        rgba(3, 4, 94, 0.9) 100%
    );
    z-index: 1;
}

.water-title {
    font-size: 54px;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 1px;
    text-shadow: 0 4px 20px rgba(0,0,0,0.5);
}

.water-subtitle {
    margin-top: 25px;
    font-size: 20px;
    letter-spacing: 3px;
    color: var(--water-accent);
    text-transform: uppercase;
    font-weight: 600;
}

/* =========================================
   INTRO TEXT
========================================= */
.intro-text {
    background: #0a0a1a;
    border-top: 1px solid rgba(0, 119, 182, 0.2);
    border-bottom: 1px solid rgba(0, 119, 182, 0.2);
}

/* =========================================
   CARDS (Services)
========================================= */
.lux-card {
    background: linear-gradient(145deg, #0f1525, #0a0f1a);
    border-radius: 14px;
    overflow: hidden;
    border: 1px solid rgba(0, 119, 182, 0.15);
    transition: 0.4s ease;
    height: 100%;
}

.lux-card:hover {
    transform: translateY(-10px);
    border-color: var(--water-light);
    box-shadow: 0 20px 40px rgba(0, 180, 216, 0.15);
}

.lux-card h4 {
    color: var(--water-accent);
}

.lux-link {
    color: var(--water-light);
    font-weight: 600;
    text-decoration: none;
}

/* =========================================
   CTA SECTION
========================================= */
.water-cta {
    background: linear-gradient(135deg, #03045e 0%, #0077b6 100%);
    padding: 100px 0;
    position: relative;
    overflow: hidden;
}

/* Water wave effect decoration */
.water-cta::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml;utf8,<svg viewBox="0 0 1440 320" xmlns="http://www.w3.org/2000/svg"><path fill="%23ffffff" fill-opacity="0.05" d="M0,192L48,197.3C96,203,192,213,288,229.3C384,245,480,267,576,250.7C672,235,768,181,864,181.3C960,181,1056,235,1152,234.7C1248,235,1344,181,1392,154.7L1440,128L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z"></path></svg>');
    background-repeat: no-repeat;
    background-size: cover;
    background-position: bottom;
    opacity: 0.3;
}

.water-cta h2 {
    font-size: 42px;
    font-weight: 700;
    color: #fff;
}

.water-cta p {
    color: rgba(255,255,255,0.9);
    font-size: 18px;
}

/* =========================================
   FOOTER
========================================= */
.water-footer {
    background: #020511;
    padding: 70px 0 40px;
    border-top: 1px solid rgba(0, 119, 182, 0.2);
    color: var(--text-muted);
}

.water-footer h5 {
    color: var(--water-light);
    font-weight: 700;
    margin-bottom: 20px;
}

.water-footer hr {
    border-color: rgba(0, 119, 182, 0.2);
}

.locations-list {
    font-size: 12px;
    line-height: 1.8;
    color: #555;
}

/* =========================================
   MOBILE BUTTON
========================================= */
.mobile-call {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background: linear-gradient(135deg, var(--water-primary), var(--water-light));
    color: #fff;
    padding: 14px 20px;
    border-radius: 50px;
    font-weight: 600;
    box-shadow: 0 8px 30px rgba(0, 180, 216, 0.5);
    z-index: 999;
    display: none;
    text-decoration: none;
}

@media (max-width: 768px) {
    .mobile-call {
        display: flex;
        align-items: center;
        gap: 10px;
    }
}

/* =========================================
   RESPONSIVE FIXES
========================================= */
@media (max-width: 992px) {
    .water-title {
        font-size: 36px;
    }

    .water-subtitle {
        font-size: 16px;
    }

    .navbar-collapse {
        background: rgba(5, 5, 16, 0.98);
        padding: 20px;
        border-radius: 0 0 10px 10px;
    }
    
    .navbar-nav .nav-link {
        padding: 15px 0;
        border-bottom: 1px solid rgba(255,255,255,0.05);
    }
}