/* File: /assets/css/marine-premium.css */
/* Premium Marine Design System */
:root {
    /* Primary Colors - Marine Theme */
    --marine-primary: #0057B8;
    --marine-primary-dark: #003153;
    --marine-primary-light: #4D8BFF;
    
    /* Secondary Colors - Ocean Theme */
    --ocean-teal: #008080;
    --ocean-teal-light: #00B3B3;
    --wave-cyan: #00CED1;
    
    /* Accent Colors */
    --gold-accent: #FFD700;
    --coral-accent: #FF7F50;
    --navy-accent: #000080;
    
    /* Neutral Colors */
    --anchor-gray: #2F4F4F;
    --sail-white: #F8F9FA;
    --deck-silver: #E8E9EA;
    --hull-black: #1A1A1A;
    
    /* Gradients */
    --gradient-marine: linear-gradient(135deg, var(--marine-primary) 0%, var(--marine-primary-dark) 100%);
    --gradient-ocean: linear-gradient(135deg, var(--ocean-teal) 0%, var(--wave-cyan) 100%);
    --gradient-sunset: linear-gradient(135deg, var(--coral-accent) 0%, var(--gold-accent) 100%);
    
    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 87, 184, 0.08);
    --shadow-md: 0 4px 16px rgba(0, 87, 184, 0.12);
    --shadow-lg: 0 8px 32px rgba(0, 87, 184, 0.16);
    --shadow-xl: 0 16px 48px rgba(0, 87, 184, 0.2);
    
    /* Borders */
    --border-radius-sm: 8px;
    --border-radius-md: 12px;
    --border-radius-lg: 16px;
    --border-radius-xl: 24px;
    
    /* Transitions */
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Premium Base Styles */
body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.7;
    color: var(--anchor-gray);
    background-color: var(--sail-white);
    overflow-x: hidden;
}

/* Premium Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.3;
    color: var(--marine-primary-dark);
    margin-bottom: 1rem;
}

.display-1, .display-2, .display-3, .display-4, .display-5 {
    font-weight: 800;
    letter-spacing: -0.02em;
}

.lead {
    font-size: 1.25rem;
    font-weight: 400;
    color: var(--anchor-gray);
    opacity: 0.9;
}

/* Premium Cards */
.premium-card {
    background: white;
    border: none;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
    overflow: hidden;
    position: relative;
}

.premium-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.premium-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-marine);
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.premium-card:hover::before {
    opacity: 1;
}

.premium-card .card-header {
    background: transparent;
    border-bottom: 1px solid var(--deck-silver);
    padding: 1.5rem 1.5rem 0;
    font-weight: 600;
}

.premium-card .card-body {
    padding: 1.5rem;
}

/* Premium Guide Cards */
.guide-card {
    border: none;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    transition: all var(--transition-normal);
    background: white;
    box-shadow: var(--shadow-md);
    position: relative;
    height: 100%;
}

.guide-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: var(--shadow-xl);
}

.guide-card .card-img-top {
    height: 220px;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.guide-card:hover .card-img-top {
    transform: scale(1.1);
}

.guide-card .card-body {
    padding: 1.5rem;
    position: relative;
    z-index: 2;
    background: white;
}

.guide-card .card-title {
    font-size: 1.125rem;
    font-weight: 700;
    line-height: 1.4;
    margin-bottom: 0.75rem;
    color: var(--marine-primary-dark);
    transition: color var(--transition-fast);
}

.guide-card:hover .card-title {
    color: var(--marine-primary);
}

.guide-card .card-text {
    font-size: 0.875rem;
    color: var(--anchor-gray);
    opacity: 0.8;
    line-height: 1.6;
    margin-bottom: 1rem;
}

.guide-card .card-footer {
    background: transparent;
    border-top: 1px solid var(--deck-silver);
    padding: 1rem 1.5rem;
}

/* Premium Badges */
.badge-premium {
    padding: 0.5rem 1rem;
    font-weight: 600;
    border-radius: 50px;
    font-size: 0.75rem;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.badge-salary {
    background: linear-gradient(135deg, var(--gold-accent), #FFB347);
    color: #000;
}

.badge-walkin {
    background: linear-gradient(135deg, #4CAF50, #8BC34A);
    color: white;
}

.badge-interview {
    background: linear-gradient(135deg, #2196F3, #03A9F4);
    color: white;
}

.badge-legal {
    background: linear-gradient(135deg, #9C27B0, #E91E63);
    color: white;
}

/* Premium Buttons */
.btn-premium {
    padding: 0.75rem 1.75rem;
    font-weight: 600;
    border-radius: var(--border-radius-sm);
    border: none;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
    letter-spacing: 0.5px;
}

.btn-premium::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 5px;
    height: 5px;
    background: rgba(255, 255, 255, 0.5);
    opacity: 0;
    border-radius: 100%;
    transform: scale(1, 1) translate(-50%);
    transform-origin: 50% 50%;
}

.btn-premium:focus:not(:active)::after {
    animation: ripple 1s ease-out;
}

.btn-premium-primary {
    background: var(--gradient-marine);
    color: white;
}

.btn-premium-primary:hover {
    background: linear-gradient(135deg, var(--marine-primary-dark), var(--marine-primary));
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(0, 87, 184, 0.3);
}

.btn-premium-outline {
    background: transparent;
    border: 2px solid var(--marine-primary);
    color: var(--marine-primary);
}

.btn-premium-outline:hover {
    background: var(--marine-primary);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0, 87, 184, 0.2);
}

@keyframes ripple {
    0% {
        transform: scale(0, 0);
        opacity: 0.5;
    }
    100% {
        transform: scale(50, 50);
        opacity: 0;
    }
}

/* Premium Hero Sections */
.premium-hero {
    position: relative;
    overflow: hidden;
    padding: 6rem 0;
    background: var(--gradient-marine);
}

.premium-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('/assets/images/wave-pattern.svg') repeat-x bottom center;
    opacity: 0.1;
    animation: wave-animation 20s linear infinite;
}

.premium-hero .hero-content {
    position: relative;
    z-index: 2;
}

.premium-hero h1 {
    color: white;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    font-weight: 800;
}

.premium-hero .lead {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.25rem;
}

@keyframes wave-animation {
    0% {
        background-position-x: 0;
    }
    100% {
        background-position-x: 1000px;
    }
}

/* Premium Search Box */
.premium-search {
    position: relative;
    max-width: 600px;
}

.premium-search .input-group {
    box-shadow: var(--shadow-lg);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
}

.premium-search .form-control {
    border: none;
    padding: 1.25rem 1.5rem;
    font-size: 1rem;
    background: white;
}

.premium-search .form-control:focus {
    box-shadow: none;
    outline: none;
}

.premium-search .btn {
    padding: 1.25rem 2rem;
    background: var(--gradient-ocean);
    border: none;
    color: white;
    font-weight: 600;
    transition: all var(--transition-normal);
}

.premium-search .btn:hover {
    background: linear-gradient(135deg, var(--ocean-teal-light), var(--ocean-teal));
    transform: translateX(2px);
}

/* Premium Stats Cards */
.stats-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--border-radius-md);
    padding: 1.5rem;
    text-align: center;
    transition: all var(--transition-normal);
}

.stats-card:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-5px);
    border-color: rgba(255, 255, 255, 0.3);
}

.stats-card .stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    color: white;
    line-height: 1;
    margin-bottom: 0.5rem;
}

.stats-card .stat-label {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.8);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Premium Navigation Tabs */
.premium-tabs {
    background: white;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    padding: 0.5rem;
}

.premium-tabs .nav-link {
    border: none;
    border-radius: var(--border-radius-md);
    padding: 1rem 1.5rem;
    color: var(--anchor-gray);
    font-weight: 600;
    transition: all var(--transition-normal);
    margin: 0 0.25rem;
}

.premium-tabs .nav-link:hover {
    background: rgba(0, 87, 184, 0.05);
    color: var(--marine-primary);
    transform: translateY(-2px);
}

.premium-tabs .nav-link.active {
    background: var(--gradient-marine);
    color: white;
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.premium-tabs .nav-link i {
    margin-right: 0.5rem;
}

/* Premium Author Box */
.premium-author {
    background: linear-gradient(135deg, rgba(0, 87, 184, 0.05), rgba(0, 49, 83, 0.05));
    border: 1px solid rgba(0, 87, 184, 0.1);
    border-radius: var(--border-radius-lg);
    padding: 2rem;
    position: relative;
    overflow: hidden;
}

.premium-author::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--gradient-marine);
}

.premium-author img {
    width: 80px;
    height: 80px;
    object-fit: cover;
    border: 4px solid white;
    box-shadow: var(--shadow-md);
}

.premium-author .author-name {
    color: var(--marine-primary-dark);
    font-weight: 700;
}

.premium-author .author-title {
    color: var(--ocean-teal);
    font-size: 0.875rem;
    font-weight: 600;
}

/* Premium FAQ Accordion */
.premium-accordion .accordion-item {
    border: none;
    border-radius: var(--border-radius-md) !important;
    margin-bottom: 0.75rem;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
}

.premium-accordion .accordion-item:hover {
    box-shadow: var(--shadow-md);
}

.premium-accordion .accordion-button {
    background: white;
    border: none;
    padding: 1.25rem 1.5rem;
    font-weight: 600;
    color: var(--marine-primary-dark);
    transition: all var(--transition-normal);
}

.premium-accordion .accordion-button:not(.collapsed) {
    background: linear-gradient(135deg, rgba(0, 87, 184, 0.05), rgba(0, 87, 184, 0.1));
    color: var(--marine-primary);
    box-shadow: none;
}

.premium-accordion .accordion-button:focus {
    box-shadow: none;
    border-color: transparent;
}

.premium-accordion .accordion-button::after {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%230057B8'%3e%3cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3e%3c/svg%3e");
    transition: transform var(--transition-normal);
}

.premium-accordion .accordion-button:not(.collapsed)::after {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%230057B8'%3e%3cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3e%3c/svg%3e");
    transform: rotate(-180deg);
}

.premium-accordion .accordion-body {
    padding: 1.5rem;
    background: white;
    border-top: 1px solid var(--deck-silver);
}

/* Premium Salary Comparison */
.salary-comparison {
    background: white;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    overflow: hidden;
}

.salary-item {
    padding: 1.5rem;
    border-bottom: 1px solid var(--deck-silver);
    transition: all var(--transition-normal);
    position: relative;
}

.salary-item:hover {
    background: rgba(0, 87, 184, 0.02);
    transform: translateX(5px);
}

.salary-item:last-child {
    border-bottom: none;
}

.salary-item .position {
    font-weight: 600;
    color: var(--marine-primary-dark);
    margin-bottom: 0.5rem;
}

.salary-item .company {
    font-size: 0.875rem;
    color: var(--anchor-gray);
    opacity: 0.8;
}

.salary-item .salary-amount {
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--ocean-teal);
}

.salary-item .experience {
    font-size: 0.875rem;
    color: var(--anchor-gray);
}

/* Premium Social Sharing */
.social-sharing {
    background: white;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    padding: 1.5rem;
}

.social-btn {
    width: 45px;
    height: 45px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--border-radius-md);
    color: white;
    font-size: 1.125rem;
    transition: all var(--transition-normal);
    text-decoration: none;
}

.social-btn:hover {
    transform: translateY(-3px) scale(1.1);
    color: white;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
}

.social-whatsapp { background: #25D366; }
.social-facebook { background: #1877F2; }
.social-linkedin { background: #0077B5; }
.social-twitter { background: #1DA1F2; }
.social-telegram { background: #0088CC; }
.social-pinterest { background: #E60023; }
.social-email { background: var(--coral-accent); }
.social-copy { background: var(--anchor-gray); }

/* Premium Mobile Optimizations */
@media (max-width: 768px) {
    /* Mobile Typography */
    .display-5 {
        font-size: 2rem;
    }
    
    .lead {
        font-size: 1.125rem;
    }
    
    /* Mobile Hero */
    .premium-hero {
        padding: 4rem 0;
    }
    
    /* Mobile Cards */
    .guide-card {
        margin-bottom: 1.5rem;
    }
    
    .guide-card:hover {
        transform: translateY(-4px);
    }
    
    /* Mobile Navigation */
    .premium-tabs .nav-link {
        padding: 0.75rem 1rem;
        font-size: 0.875rem;
        margin: 0.125rem;
    }
    
    /* Mobile Grid Adjustments */
    .row.g-4 {
        margin-left: -0.75rem;
        margin-right: -0.75rem;
    }
    
    .row.g-4 > [class*="col-"] {
        padding-left: 0.75rem;
        padding-right: 0.75rem;
    }
    
    /* Mobile Search */
    .premium-search .form-control {
        padding: 1rem;
        font-size: 0.9375rem;
    }
    
    .premium-search .btn {
        padding: 1rem 1.5rem;
    }
    
    /* Mobile Stats */
    .stats-card {
        padding: 1rem;
        margin-bottom: 1rem;
    }
    
    .stats-card .stat-number {
        font-size: 2rem;
    }
    
    /* Mobile Author Box */
    .premium-author {
        padding: 1.5rem;
    }
    
    /* Mobile Social Sharing */
    .social-sharing {
        padding: 1rem;
    }
    
    .social-btn {
        width: 40px;
        height: 40px;
        font-size: 1rem;
    }
}

/* Tablet Optimizations */
@media (min-width: 769px) and (max-width: 1024px) {
    .guide-card .card-img-top {
        height: 180px;
    }
    
    .premium-hero {
        padding: 5rem 0;
    }
    
    .stats-card {
        padding: 1.25rem;
    }
}

/* Premium Loading States */
.loading-skeleton {
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: loading 1.5s infinite;
    border-radius: var(--border-radius-md);
}

@keyframes loading {
    0% {
        background-position: 200% 0;
    }
    100% {
        background-position: -200% 0;
    }
}

/* Premium Scrollbar */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: var(--sail-white);
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, var(--marine-primary), var(--marine-primary-dark));
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(135deg, var(--marine-primary-dark), var(--ocean-teal));
}

/* Premium Focus States */
:focus {
    outline: 2px solid var(--marine-primary-light);
    outline-offset: 2px;
}

:focus:not(:focus-visible) {
    outline: none;
}

/* Premium Utility Classes */
.text-gradient {
    background: var(--gradient-marine);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.bg-gradient-marine {
    background: var(--gradient-marine);
}

.bg-gradient-ocean {
    background: var(--gradient-ocean);
}

.bg-gradient-sunset {
    background: var(--gradient-sunset);
}

.shadow-premium {
    box-shadow: var(--shadow-lg);
}

.hover-lift {
    transition: transform var(--transition-normal);
}

.hover-lift:hover {
    transform: translateY(-4px);
}

/* Premium Animation Classes */
.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Premium Section Spacing */
.section-py {
    padding-top: 6rem;
    padding-bottom: 6rem;
}

.section-pt {
    padding-top: 6rem;
}

.section-pb {
    padding-bottom: 6rem;
}

@media (max-width: 768px) {
    .section-py {
        padding-top: 4rem;
        padding-bottom: 4rem;
    }
    
    .section-pt {
        padding-top: 4rem;
    }
    
    .section-pb {
        padding-bottom: 4rem;
    }
}