/**
 * Cruos - Theme Styling Sheet
 * High-end dark theme design using CSS custom properties, glassmorphic filters, and hover micro-animations.
 */

:root {
    --bg-dark: #11131F;
    --bg-darker: #08090F;
    --bg-card: rgba(25, 28, 47, 0.4);
    --text-primary: #F8FAFC;
    --text-secondary: #94A3B8;
    --accent-cyan: #04E2FF;
    --accent-cyan-hover: #86F4FF;
    --accent-blue: #2E89FF;
    --accent-blue-hover: #77B2FF;
    
    --glass-bg: rgba(11, 13, 25, 0.8);
    --glass-border: rgba(255, 255, 255, 0.06);
    --glow-cyan: 0 0 15px rgba(4, 226, 255, 0.35);
    
    --font-outfit: 'Outfit', sans-serif;
    --font-inter: 'Inter', sans-serif;
}

html.light-theme {
    --bg-dark: #F8FAFC;
    --bg-darker: #F1F5F9;
    --bg-card: rgba(255, 255, 255, 0.7);
    --text-primary: #0F172A;
    --text-secondary: #475569;
    --accent-cyan: #0284C7;
    --accent-cyan-hover: #0369A1;
    --accent-blue: #2563EB;
    --accent-blue-hover: #1D4ED8;
    
    --glass-bg: rgba(255, 255, 255, 0.8);
    --glass-border: rgba(15, 23, 42, 0.08);
    --glow-cyan: 0 0 15px rgba(14, 165, 233, 0.15);
}

/* Global Styles */
body.bg-dark-theme {
    background-color: var(--bg-dark);
    color: var(--text-primary);
    font-family: var(--font-inter);
    -webkit-font-smoothing: antialiased;
    letter-spacing: -0.011em;
}

/* Scrollbar customisation */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}
::-webkit-scrollbar-track {
    background: var(--bg-darker);
}
::-webkit-scrollbar-thumb {
    background: #1E293B;
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--accent-cyan);
}

/* Typography settings */
h1, h2, h3, h4, h5, h6, .outfit-font {
    font-family: var(--font-outfit);
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--text-primary);
}

p, .font-inter {
    color: var(--text-secondary);
    line-height: 1.65;
}

/* Link elements */
a.text-cyan:hover {
    color: var(--accent-cyan-hover) !important;
    text-shadow: var(--glow-cyan);
}

/* Glassmorphic Top Navbar */
.navbar-custom {
    background-color: var(--glass-bg);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--glass-border);
    transition: all 0.3s ease;
}

.navbar-custom.scrolled {
    padding-top: 10px !important;
    padding-bottom: 10px !important;
    background-color: var(--bg-darker) !important;
    box-shadow: 0 4px 8px rgba(0,0,0,0.4);
}

.navbar-custom .navbar-brand .logo-brand {
    transition: transform 0.3s ease;
}
.navbar-custom .navbar-brand:hover .logo-brand {
    transform: scale(1.05);
}

.navbar-custom .nav-link {
    font-family: var(--font-outfit);
    font-weight: 500;
    color: var(--text-secondary);
    font-size: 15px;
    padding: 8px 16px !important;
    transition: color 0.25s ease;
}
.navbar-custom .nav-link:hover,
.navbar-custom .nav-link.active {
    color: var(--accent-cyan) !important;
}

/* Dropdown menu customization */
.dropdown-custom {
    background-color: var(--bg-darker);
    border: 1px solid var(--glass-border) !important;
    backdrop-filter: blur(8px);
}
.dropdown-custom .dropdown-item {
    font-family: var(--font-outfit);
    font-size: 14px;
    color: var(--text-secondary);
    padding: 10px 20px;
    transition: all 0.2s ease;
}
.dropdown-custom .dropdown-item:hover,
.dropdown-custom .dropdown-item.active {
    background-color: rgba(4, 226, 255, 0.08) !important;
    color: var(--accent-cyan) !important;
    padding-left: 25px;
}

/* Premium Buttons */
.btn-cyan {
    background-color: var(--accent-cyan);
    color: #000;
    font-family: var(--font-outfit);
    font-weight: 600;
    border: none;
    box-shadow: 0 2px 6px rgba(4, 226, 255, 0.25);
}
.btn-cyan:hover, .btn-cyan:focus {
    background-color: var(--accent-cyan-hover);
    color: #000;
    transform: translateY(-2px);
    box-shadow: 0 4px 10px rgba(4, 226, 255, 0.4);
}

.btn-outline-cyan {
    border: 1px solid var(--text-secondary);
    color: var(--accent-cyan);
    font-family: var(--font-outfit);
    font-weight: 600;
    background: transparent;
}
.btn-outline-cyan:hover, .btn-outline-cyan:focus {
    background-color: var(--accent-cyan);
    color: #000;
    transform: translateY(-2px);
    box-shadow: 0 3px 8px rgba(4, 226, 255, 0.3);
}

/* Dark Mode Button Text Color */
body.bg-dark-theme .btn-cyan {
    color: var(--accent-white);
}
body.bg-dark-theme .btn-cyan:hover,
body.bg-dark-theme .btn-cyan:focus {
    color: var(--accent-cyan);
}
body.bg-dark-theme .btn-outline-cyan {
    color: var(--accent-cyan);
}
body.bg-dark-theme .btn-outline-cyan:hover,
body.bg-dark-theme .btn-outline-cyan:focus {
    color: var(--accent-cyan);
}

/* Glassmorphism Cards */
.glass-card {
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    transition: all 0.35s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.glass-card:hover {
    transform: translateY(-8px);
    border-color: rgba(4, 226, 255, 0.25);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.3), var(--glow-cyan);
}

/* Hero Section */
.hero-section {
    position: relative;
    padding: 140px 0 100px;
    background: radial-gradient(circle at 80% 20%, rgba(4, 226, 255, 0.08) 0%, rgba(17, 19, 31, 0) 50%);
    overflow: hidden;
}

.hero-tagline {
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--accent-cyan);
    text-shadow: var(--glow-cyan);
}

.hero-heading {
    font-size: 3.5rem;
    line-height: 1.15;
    background: linear-gradient(135deg, #FFFFFF 40%, #A0AEC0 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

@media (max-width: 991.98px) {
    .hero-heading {
        font-size: 2.8rem;
    }
}

/* Features Grid */
.text-cyan {
    color: var(--accent-cyan) !important;
}

.icon-box {
    width: 64px;
    height: 64px;
    border-radius: 12px;
    background: rgba(4, 226, 255, 0.06);
    border: 1px solid rgba(4, 226, 255, 0.15);
    color: var(--accent-cyan);
    font-size: 24px;
    transition: all 0.3s ease;
}

.glass-card:hover .icon-box {
    background: var(--accent-cyan);
    color: #000;
    transform: scale(1.05);
    box-shadow: var(--glow-cyan);
}

/* Portfolio Filters and Gallery */
.filter-btn {
    font-family: var(--font-outfit);
    font-weight: 500;
    color: var(--text-secondary);
    background: transparent;
    border: 1px solid var(--glass-border);
    border-radius: 30px;
    padding: 8px 24px;
    transition: all 0.25s ease;
}
.filter-btn:hover,
.filter-btn.active {
    background-color: var(--accent-cyan);
    border-color: var(--accent-cyan);
    color: #000;
    box-shadow: var(--glow-cyan);
}

.portfolio-card {
    cursor: pointer;
    overflow: hidden;
    border-radius: 16px;
    border: 1px solid var(--glass-border);
    position: relative;
}

.portfolio-card img {
    transition: transform 0.5s ease;
    object-fit: cover;
}

.portfolio-card:hover img {
    transform: scale(1.08);
}

.portfolio-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(0deg, rgba(8, 9, 15, 0.95) 0%, rgba(8, 9, 15, 0.4) 60%, rgba(8, 9, 15, 0) 100%);
    opacity: 0.85;
    transition: opacity 0.3s ease;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 24px;
}

.portfolio-card:hover .portfolio-overlay {
    opacity: 1;
}

/* Forms CSS */
.form-control-custom {
    background: rgba(15, 17, 28, 0.6);
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    color: var(--text-primary);
    padding: 12px 16px;
    transition: all 0.3s ease;
}

.form-control-custom:focus {
    background: rgba(15, 17, 28, 0.9);
    border-color: var(--accent-cyan);
    box-shadow: 0 0 10px rgba(4, 226, 255, 0.15);
    color: var(--text-primary);
    outline: none;
}

.form-control-custom::placeholder {
    color: #4B5563;
}

/* Modals styling */
.modal-custom .modal-content {
    background-color: var(--bg-darker);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
}
.modal-custom .btn-close {
    filter: invert(1);
    opacity: 0.8;
}

/* Helpers */
.bg-darker {
    background-color: var(--bg-darker) !important;
}

.tracking-wider {
    letter-spacing: 0.1em;
}

.uppercase {
    text-transform: uppercase;
}

.max-width-300 {
    max-width: 300px;
}

.transition {
    transition: all 0.25s ease;
}

/* Light Theme Overrides and Global Rules */
html {
    transition: background-color 0.3s ease, color 0.3s ease;
}

body {
    background-color: var(--bg-dark);
    color: var(--text-primary);
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* Transition background color for sections and cards */
section, .glass-card, .navbar-custom, .form-control-custom, .dropdown-custom {
    transition: background-color 0.3s ease, border-color 0.3s ease, color 0.3s ease, transform 0.35s cubic-bezier(0.25, 0.8, 0.25, 1), box-shadow 0.35s ease;
}

/* Theme Toggle Button specific styling */
#themeToggleBtn {
    border: 1px solid rgba(255, 255, 255, 0.45) !important;
    color: #FFFFFF !important;
}
#themeToggleBtn:hover {
    color: var(--accent-cyan) !important;
    border-color: var(--accent-cyan) !important;
    box-shadow: var(--glow-cyan);
}

html.light-theme body {
    background-color: var(--bg-dark);
    color: var(--text-primary);
}

/* Light Theme Toggle Button Styling */
html.light-theme #themeToggleBtn {
    color: var(--text-primary) !important;
    border: 1px solid rgba(15, 23, 42, 0.25) !important;
}
html.light-theme #themeToggleBtn:hover {
    color: var(--accent-cyan) !important;
    border-color: var(--accent-cyan) !important;
}

/* Override utility backgrounds */
html.light-theme .bg-darker {
    background-color: var(--bg-darker) !important;
}

html.light-theme .bg-dark {
    background-color: #FFFFFF !important;
}

html.light-theme .bg-dark.bg-opacity-50 {
    background-color: rgba(255, 255, 255, 0.6) !important;
}

html.light-theme .bg-dark.bg-opacity-25 {
    background-color: rgba(255, 255, 255, 0.4) !important;
}

/* Text color overrides */
.text-portfolio {
    color: rgb(255, 255, 255) !important;
}
html.light-theme .text-white {
    color: var(--text-primary) !important;
}

html.light-theme .text-light {
    color: var(--text-primary) !important;
}

html.light-theme .text-secondary {
    color: var(--text-secondary) !important;
}

html.light-theme .hero-heading {
    background: linear-gradient(135deg, #0F172A 40%, #475569 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

html.light-theme .lead {
    color: var(--text-secondary) !important;
}

/* Border overrides */
html.light-theme .border-dark {
    border-color: rgba(15, 23, 42, 0.08) !important;
}

html.light-theme .border-secondary-subtle {
    border-color: rgba(15, 23, 42, 0.12) !important;
}

html.light-theme .border-secondary {
    border-color: rgba(15, 23, 42, 0.1) !important;
}

/* Navbar light styling overrides */
html.light-theme .navbar-custom {
    background-color: var(--glass-bg);
    border-bottom: 1px solid var(--glass-border);
}

html.light-theme .navbar-custom .nav-link {
    color: var(--text-secondary);
}

html.light-theme .navbar-custom .nav-link:hover,
html.light-theme .navbar-custom .nav-link.active {
    color: var(--accent-cyan) !important;
}

/* Dropdown override */
html.light-theme .dropdown-custom {
    background-color: #FFFFFF;
    border: 1px solid var(--glass-border) !important;
    box-shadow: 0 4px 12px rgba(15, 23, 42, 0.08) !important;
}

html.light-theme .dropdown-custom .dropdown-item {
    color: var(--text-secondary);
}

html.light-theme .dropdown-custom .dropdown-item:hover,
html.light-theme .dropdown-custom .dropdown-item.active {
    background-color: rgba(2, 132, 199, 0.08) !important;
    color: var(--accent-cyan) !important;
}

/* Form inputs override */
html.light-theme .form-control-custom {
    background-color: #FFFFFF;
    border: 1px solid rgba(15, 23, 42, 0.15);
    color: #0F172A;
}

html.light-theme .form-control-custom:focus {
    background-color: #FFFFFF;
    border-color: var(--accent-cyan);
    color: #0F172A;
    box-shadow: 0 0 10px rgba(2, 132, 199, 0.15);
}

html.light-theme .form-control-custom::placeholder {
    color: #94A3B8;
}

/* Badges override */
html.light-theme .badge.bg-dark {
    background-color: #FFFFFF !important;
    color: var(--accent-cyan) !important;
    border-color: var(--accent-cyan) !important;
}

/* Custom cards content hover borders */
html.light-theme .glass-card:hover {
    border-color: rgba(2, 132, 199, 0.25);
    box-shadow: 0 8px 12px rgba(15, 23, 42, 0.08), var(--glow-cyan);
}

/* CTA and Hero background details */
html.light-theme .hero-section {
    background: radial-gradient(circle at 80% 20%, rgba(2, 132, 199, 0.06) 0%, rgba(248, 250, 252, 0) 50%);
}

html.light-theme .section-cta {
    background-color: var(--bg-darker) !important;
}

/* Close buttons on modals */
html.light-theme .modal-custom .btn-close {
    filter: none;
    opacity: 0.7;
}

html.light-theme .modal-custom .modal-content {
    background-color: #FFFFFF;
    box-shadow: 0 8px 16px rgba(15, 23, 42, 0.12);
}

/* Client Logos Container & Adaptive Filters */
.client-logo-container {
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 16px;
    border-radius: 12px;
    background-color: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--glass-border);
    margin-bottom: 24px;
    overflow: hidden;
    transition: all 0.3s ease;
}

.client-logo-container img {
    max-height: 100%;
    max-width: 100%;
    object-fit: contain;
    transition: transform 0.3s ease, filter 0.3s ease;
}

.glass-card:hover .client-logo-container img {
    transform: scale(1.05);
}

/* Dark mode adjustments */
html:not(.light-theme) .client-logo-container {
    background-color: #FFFFFF !important;
}



/* Light mode adjustments */
html.light-theme .client-logo-container {
    background-color: #FFFFFF;
    border-color: rgba(15, 23, 42, 0.08);
    box-shadow: 0 4px 12px rgba(15, 23, 42, 0.03);
}