/* Custom CSS Variables */
:root {
    --primary-color: #00D9A3;
    --primary-hover: #00B88A;
    --primary-dark: #009671;
    --secondary-dark: #1F2937;
    --dark-bg: #0F1419;
    --darker-bg: #0A0E13;
    --light-text: #F9FAFB;
    --muted-text: #9CA3AF;
    --border-color: #374151;
    --shadow-light: rgba(0, 217, 163, 0.1);
    --shadow-dark: rgba(0, 0, 0, 0.4);
    --teal-glow: rgba(0, 217, 163, 0.2);
    --error: #EF4444;
    
    /* Border Radius */
    --border-radius-sm: 0.375rem;
    --border-radius-md: 0.5rem;
    --border-radius-lg: 0.75rem;
    
    /* Transitions */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: all 0.15s ease-in-out;
}

/* Base Styles */
* {
    box-sizing: border-box;
}

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: var(--light-text);
    background: linear-gradient(135deg, var(--dark-bg) 0%, var(--darker-bg) 100%);
    overflow-x: hidden;
    min-height: 100vh;
}

/* Navigation Styles */
.navbar {
    transition: all 0.3s ease;
    background-color: transparent;
    backdrop-filter: blur(10px);
}

.navbar.shadow-lg {
    background-color: transparent;
    border-bottom: 1px solid var(--teal-glow);
}

.navbar.scrolled {
    background-color: rgba(15, 20, 25, 0.95) !important;
}

.navbar-brand {
    font-size: 1.8rem !important;
    font-weight: 700;
    color: var(--light-text) !important;
}

.logo-img {
    height: 32px;
    width: auto;
    filter: drop-shadow(0 0 8px var(--teal-glow));
}

.nav-link {
    position: relative;
    transition: all 0.3s ease;
    font-weight: 500;
    color: var(--light-text) !important;
}

.nav-item .nav-link:hover {
    color: var(--primary-color) !important;
    text-shadow: 0 0 8px var(--teal-glow);
}

.nav-item .nav-link.active {
    color: var(--primary-color) !important;
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-color), var(--primary-hover));
    border-radius: 1px;
    box-shadow: 0 0 8px var(--teal-glow);
}

/* Error Container */
.error-container {
    min-height: calc(100vh - 200px);
    padding: 2rem 0;
    position: relative;
}

/* 404 Animation */
.error-animation {
    position: relative;
    margin-bottom: 3rem;
}

.error-number {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1rem;
    margin-bottom: 2rem;
}

.digit {
    font-size: clamp(4rem, 15vw, 8rem);
    font-weight: 700;
    color: var(--primary-color);
    text-shadow: 0 4px 20px var(--teal-glow);
    animation: bounceIn 0.8s ease-out;
    display: inline-block;
}

.digit.middle {
    animation-delay: 0.2s;
    color: var(--error);
    transform: scale(1.2);
}

.digit:last-child {
    animation-delay: 0.4s;
}

/* Floating Elements */
.floating-elements {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
}

.floating-icon {
    position: absolute;
    color: var(--muted-text);
    font-size: 2rem;
    opacity: 0.6;
    animation: float 3s ease-in-out infinite;
}

.icon-1 {
    top: 20%;
    left: 10%;
    animation-delay: 0s;
}

.icon-2 {
    top: 30%;
    right: 15%;
    animation-delay: 1s;
}

.icon-3 {
    bottom: 20%;
    left: 20%;
    animation-delay: 2s;
}

/* Error Content */
.error-title {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 700;
    color: var(--light-text);
    margin-bottom: 1.5rem;
    animation: fadeInUp 0.8s ease-out 0.6s both;
}

.error-description {
    font-size: 1.25rem;
    color: var(--muted-text);
    max-width: 600px;
    margin: 0 auto 2rem;
    animation: fadeInUp 0.8s ease-out 0.8s both;
}

/* Offshore Notice Styles */
.offshore-notice .badge {
    background: var(--primary-color) !important;
    color: var(--dark-bg) !important;
    padding: 0.5rem 1rem;
    border-radius: 50px;
    line-height: 1.4 !important;
    box-shadow: 0 0 20px var(--teal-glow);
    font-weight: 600;
    transition: all 0.3s ease;
}

/* Location Icon Animation */
.fa-globe-europe {
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.1);
    }
    100% {
        transform: scale(1);
    }
}

/* Search Section */
.search-section {
    max-width: 500px;
    margin: 0 auto;
    animation: fadeInUp 0.8s ease-out 1s both;
}

.search-input {
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius-lg) 0 0 var(--border-radius-lg);
    padding: 1rem 1.5rem;
    font-size: 1.1rem;
    transition: var(--transition);
    background: var(--secondary-dark);
    color: var(--light-text);
}

.search-input:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.25rem var(--teal-glow);
    background: var(--secondary-dark);
    color: var(--light-text);
}

.search-input.is-invalid {
    border-color: var(--error);
}

.search-input::placeholder {
    color: var(--muted-text);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    border: none;
    border-radius: 0 var(--border-radius-lg) var(--border-radius-lg) 0;
    padding: 1rem 2rem;
    font-weight: 600;
    transition: var(--transition);
    box-shadow: 0 4px 15px var(--shadow-light);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-hover), var(--primary-color));
    transform: translateY(-2px);
    box-shadow: 0 8px 25px var(--teal-glow);
}

/* Action Buttons */
.action-buttons {
    animation: fadeInUp 0.8s ease-out 1.2s both;
}

.btn-lg {
    padding: 0.75rem 2rem;
    font-size: 1.1rem;
    border-radius: var(--border-radius-lg);
    font-weight: 600;
    transition: var(--transition);
}

.btn-outline-secondary {
    border-color: var(--primary-color);
    color: var(--primary-color);
    transition: all 0.3s ease;
}

.btn-outline-secondary:hover {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    color: var(--dark-bg);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px var(--teal-glow);
}

/* Quick Links */
.quick-links {
    animation: fadeInUp 0.8s ease-out 1.4s both;
}

.quick-link-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 1.5rem 1rem;
    background: var(--secondary-dark);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    text-decoration: none;
    color: var(--muted-text);
    transition: var(--transition);
    box-shadow: 0 4px 6px var(--shadow-dark);
}

.quick-link-card:hover {
    color: var(--primary-color);
    background: rgba(31, 41, 55, 0.6);
    border-color: var(--primary-color);
    transform: translateY(-10px);
    box-shadow: 0 20px 40px var(--shadow-dark);
    text-decoration: none;
}

.quick-link-card i {
    font-size: 2rem;
    margin-bottom: 0.5rem;
    transition: var(--transition);
}

.quick-link-card:hover i {
    transform: scale(1.1);
}

.quick-link-card span {
    font-weight: 500;
    font-size: 0.9rem;
}

/* Custom Background Colors */
.bg-secondary-dark {
    background-color: var(--secondary-dark) !important;
}

/* Footer */
.footer {
    background: var(--secondary-dark) !important;
    border-top: 1px solid var(--border-color);
    margin-top: auto;
}

.footer a {
    color: var(--muted-text);
    transition: var(--transition-fast);
}

.footer a:hover {
    color: var(--primary-color);
}

.hover-primary:hover {
    color: var(--primary-color) !important;
    transition: color 0.3s ease;
}

/* Text Color Overrides */
.text-primary {
    color: var(--primary-color) !important;
}

.text-muted {
    color: var(--muted-text) !important;
}

/* Loading Overlay */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(15, 20, 25, 0.95);
    backdrop-filter: blur(8px);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1050;
    animation: fadeIn 0.3s ease-out;
}

.loading-overlay.show {
    display: flex;
}

.loading-spinner {
    text-align: center;
    color: var(--muted-text);
}

.loading-spinner p {
    margin-top: 1rem;
    font-weight: 500;
}

.loading-spinner .spinner-border {
    color: var(--primary-color);
}

/* Animations */
@keyframes bounceIn {
    0% {
        transform: scale(0.3) translateY(-50px);
        opacity: 0;
    }
    50% {
        transform: scale(1.05) translateY(0);
        opacity: 1;
    }
    70% {
        transform: scale(0.9);
    }
    100% {
        transform: scale(1);
    }
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-20px);
    }
}

@keyframes fadeInUp {
    0% {
        opacity: 0;
        transform: translateY(30px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    0% {
        opacity: 0;
    }
    100% {
        opacity: 1;
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .error-number {
        gap: 0.5rem;
    }
    
    .digit {
        font-size: clamp(3rem, 12vw, 6rem);
    }
    
    .error-title {
        font-size: clamp(1.5rem, 4vw, 2.5rem);
    }
    
    .error-description {
        font-size: 1.1rem;
        padding: 0 1rem;
    }
    
    .action-buttons .btn {
        display: block;
        width: 100%;
        margin-bottom: 1rem;
    }
    
    .floating-icon {
        font-size: 1.5rem;
    }
    
    .search-section {
        padding: 0 1rem;
    }
    
    .input-group-lg .form-control,
    .input-group-lg .btn {
        padding: 0.75rem 1rem;
        font-size: 1rem;
    }
}

@media (max-width: 576px) {
    .error-container {
        padding: 1rem 0;
    }
    
    .quick-link-card {
        padding: 1rem 0.5rem;
    }
    
    .quick-link-card i {
        font-size: 1.5rem;
    }
    
    .quick-link-card span {
        font-size: 0.8rem;
    }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --primary-color: 210 100% 40%;
        --text-primary: 0 0% 0%;
        --text-secondary: 0 0% 20%;
        --background: 0 0% 100%;
    }
}

/* Feature Cards and Hover Effects */
.feature-card {
    transition: all 0.3s ease;
    border: 1px solid transparent;
    background: rgba(31, 41, 55, 0.3);
    border-radius: 12px;
}

.feature-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
    box-shadow: 0 10px 30px var(--shadow-dark);
    background: rgba(31, 41, 55, 0.6);
}

.hover-lift {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.hover-lift:hover {
    transform: translateY(-15px) !important;
    box-shadow: 0 15px 35px var(--shadow-dark);
}

/* Icon Glow Animation */
.feature-icon i {
    animation: glow 3s ease-in-out infinite;
}

@keyframes glow {
    0%, 100% {
        filter: drop-shadow(0 0 5px var(--teal-glow));
    }
    50% {
        filter: drop-shadow(0 0 20px var(--teal-glow));
    }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Print styles */
@media print {
    .navbar,
    .footer,
    .floating-elements,
    .search-section,
    .action-buttons {
        display: none !important;
    }
    
    .error-container {
        padding: 2rem 0;
    }
    
    body {
        background: white;
        color: black;
    }
}