/* ==========================================================================
   Base & General Styles
   ========================================================================== */
@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@300;400;500;600;700&family=Open+Sans:wght@300;400;600&display=swap');

:root {
    --bg-dark: #0A1128;       /* Deep Digital Blue */
    --bg-card: rgba(28, 37, 65, 0.7); /* Glassy Card Background */
    --accent: #00F0FF;        /* Electric Cyan */
    --accent-hover: #00BFFF;  /* Darker Cyan */
    --text-primary: #F0F4F8;  /* Off-white */
    --text-secondary: #BCCcdc; /* Muted Blue-Grey */
    --border-glass: rgba(255, 255, 255, 0.1);
    --shadow-glow: 0 0 15px rgba(0, 240, 255, 0.2);
}

html {
    scroll-behavior: smooth;
    background-color: var(--bg-dark);
}

section[id] {
    scroll-margin-top: 80px;
}

body {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    font-family: 'Open Sans', sans-serif;
    background-color: transparent; /* Transparent to reveal fixed background */
    color: var(--text-primary);
    padding-top: 56px;
    overflow-x: hidden;
}

/* Background Image with Overlay */
#page-background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('../assets/background-image.jpg') no-repeat center center fixed;
    background-size: cover;
    z-index: -2;
    opacity: 0.2; /* Subtle visibility */
    mix-blend-mode: luminosity; /* Blend with blue background */
}

/* Tactical Grid Overlay */
body::before {
    content: "";
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image:
        linear-gradient(rgba(0, 240, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 240, 255, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    pointer-events: none;
    z-index: -1;
}

/* ==========================================================================
   Typography
   ========================================================================== */

h1, h2, h3, h4, h5, h6 {
    font-family: 'Montserrat', sans-serif;
    color: var(--text-primary);
    font-weight: 600;
    letter-spacing: -0.5px;
}

h1.display-4 {
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
    text-shadow: 0 0 20px rgba(0, 240, 255, 0.3);
}

p.lead {
    color: var(--text-secondary);
    font-weight: 300;
}

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

/* Force dark text classes to be light in this dark theme */
.text-dark, .text-black, .text-body {
    color: var(--text-primary) !important;
}

/* ==========================================================================
   Navbar (Glassmorphism)
   ========================================================================== */

.navbar {
    background: rgba(10, 17, 40, 0.85) !important; /* Semi-transparent dark */
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-glass);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
}

.navbar-nav .nav-link {
    color: var(--text-secondary);
    font-weight: 500;
    transition: color 0.3s ease;
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active {
    color: var(--accent);
    text-shadow: 0 0 8px rgba(0, 240, 255, 0.6);
}

.navbar-toggler {
    border-color: var(--accent);
}

.navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(0, 240, 255, 1)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

/* ==========================================================================
   Hero Section
   ========================================================================== */

#hero {
    position: relative;
    z-index: 1;
    overflow: hidden;
}

/* Dynamic background circle for Hero */
#hero::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 60vw;
    height: 60vw;
    background: radial-gradient(circle, rgba(0, 240, 255, 0.1) 0%, transparent 70%);
    z-index: -1;
    pointer-events: none;
}

/* Signal Flicker Animation */
@keyframes signalFlicker {
    0% { opacity: 0; text-shadow: none; }
    5% { opacity: 1; text-shadow: 0 0 10px var(--accent); }
    10% { opacity: 0.2; text-shadow: none; }
    15% { opacity: 1; text-shadow: 0 0 10px var(--accent); }
    20% { opacity: 0; text-shadow: none; }
    25% { opacity: 1; text-shadow: 0 0 20px var(--accent); }
    30% { opacity: 0.5; }
    35% { opacity: 0.9; }
    40% { opacity: 0.1; }
    45% { opacity: 1; text-shadow: 0 0 15px var(--accent); }
    50% { opacity: 0.6; }
    55% { opacity: 1; }
    60% { opacity: 0.8; }
    65% { opacity: 1; text-shadow: 0 0 10px var(--accent); }
    70% { opacity: 0.9; }
    80% { opacity: 1; text-shadow: 0 0 5px var(--accent); }
    100% { opacity: 1; text-shadow: 0 0 20px rgba(0, 240, 255, 0.3); }
}

#hero h1 {
    animation: signalFlicker 0.8s cubic-bezier(0.1, 0.7, 1.0, 0.1) forwards;
}

/* ==========================================================================
   Cards (Glassmorphism & Glow)
   ========================================================================== */

.card {
    background: var(--bg-card);
    border: 1px solid var(--border-glass);
    border-radius: 12px;
    backdrop-filter: blur(5px);
    transition: all 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-glow);
    border-color: var(--accent);
}

.card-body {
    color: var(--text-primary);
}

/* ==========================================================================
   Buttons
   ========================================================================== */

.btn-primary {
    background-color: transparent;
    border: 2px solid var(--accent);
    color: var(--accent);
    font-family: 'Montserrat', sans-serif;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    padding: 0.75rem 2rem;
    transition: all 0.3s ease;
    box-shadow: 0 0 10px rgba(0, 240, 255, 0.1);
}

.btn-primary:hover,
.btn-primary:focus,
.btn-primary:active {
    background-color: var(--accent) !important;
    border-color: var(--accent) !important;
    color: var(--bg-dark) !important;
    box-shadow: 0 0 20px rgba(0, 240, 255, 0.6);
}

.btn-neon {
    background-color: transparent;
    border: 1px solid var(--accent);
    color: var(--accent);
    text-shadow: 0 0 5px rgba(0, 240, 255, 0.5);
    box-shadow: 0 0 5px rgba(0, 240, 255, 0.2), inset 0 0 5px rgba(0, 240, 255, 0.1);
    transition: all 0.3s ease;
}

.btn-neon:hover {
    background-color: var(--accent);
    color: var(--bg-dark);
    box-shadow: 0 0 20px rgba(0, 240, 255, 0.6), inset 0 0 10px rgba(0, 240, 255, 0.4);
    text-shadow: none;
}

/* ==========================================================================
   Forms
   ========================================================================== */

.form-control, .form-select {
    background-color: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-glass);
    color: var(--text-primary);
}

.form-control:focus, .form-select:focus {
    background-color: rgba(255, 255, 255, 0.1);
    border-color: var(--accent);
    color: var(--text-primary);
    box-shadow: 0 0 0 0.2rem rgba(0, 240, 255, 0.25);
}

.form-control::placeholder {
    color: var(--text-secondary);
    opacity: 0.7;
}

/* ==========================================================================
   Lists & Tables
   ========================================================================== */

.list-group-item {
    background-color: var(--bg-card);
    border-color: var(--border-glass);
    color: var(--text-primary);
}

.table {
    color: var(--text-primary);
    border-color: var(--border-glass);
}

.table thead th {
    border-bottom: 2px solid var(--accent);
    color: var(--accent);
}

/* ==========================================================================
   Footer
   ========================================================================== */

footer {
    border-top: 1px solid var(--border-glass);
    background-color: rgba(10, 17, 40, 0.95) !important; /* Force override */
    color: var(--text-secondary);
}

/* ==========================================================================
   Animations
   ========================================================================== */

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

section, .card, #hero p, #hero a {
    animation: fadeInUp 0.8s ease-out forwards;
}

/* Stagger animations slightly */
#hero p { animation-delay: 1.0s; opacity: 0; }
#hero a { animation-delay: 1.3s; opacity: 0; }

/* ==========================================================================
   Responsive Adjustments
   ========================================================================== */

@media (max-width: 768px) {
    .display-4 {
        font-size: 2.5rem;
    }
    body::before {
        background-size: 30px 30px; /* Smaller grid on mobile */
    }
}

/* Utility to ensure text readability on glass backgrounds */
.bg-light {
    background-color: transparent !important; /* Remove bootstrap light backgrounds */
}

.bg-white {
    background-color: var(--bg-card) !important;
}

/* ==========================================================================
   Modals (Global Override)
   ========================================================================== */

.modal-content {
    background-color: var(--bg-dark);
    border: 1px solid var(--border-glass);
    color: var(--text-primary);
    box-shadow: 0 0 30px rgba(0, 0, 0, 0.8);
}

.modal-header {
    border-bottom: 1px solid var(--border-glass);
}

.modal-footer {
    border-top: 1px solid var(--border-glass);
}

.btn-close {
    filter: invert(1);
}

/* ==========================================================================
   Dark Theme Overrides (Added by modernization script)
   ========================================================================== */

/* Buttons: Make dark outline visible on dark bg */
.btn-outline-dark {
    color: var(--text-primary);
    border-color: var(--text-secondary);
}

.btn-outline-dark:hover {
    background-color: var(--text-secondary);
    color: var(--bg-dark);
}

.btn-outline-secondary {
    color: var(--text-secondary);
    border-color: var(--text-secondary);
}

.btn-outline-secondary:hover {
    background-color: var(--text-secondary);
    color: var(--bg-dark);
}

/* Alerts: Make readable on dark bg */
.alert-primary {
    background-color: rgba(13, 110, 253, 0.2);
    border-color: rgba(13, 110, 253, 0.4);
    color: #6ea8fe;
}

.alert-light, .alert-secondary {
    background-color: rgba(255, 255, 255, 0.1);
    border-color: var(--border-glass);
    color: var(--text-primary);
}

.alert-warning {
    background-color: rgba(255, 193, 7, 0.2);
    border-color: rgba(255, 193, 7, 0.4);
    color: #ffca2c; /* Brighter yellow */
}

.alert-danger {
    background-color: rgba(220, 53, 69, 0.2);
    border-color: rgba(220, 53, 69, 0.4);
    color: #ff6b6b; /* Brighter red */
}

.alert-success {
    background-color: rgba(25, 135, 84, 0.2);
    border-color: rgba(25, 135, 84, 0.4);
    color: #2ecc71; /* Brighter green */
}

.alert-info {
    background-color: rgba(13, 202, 240, 0.2);
    border-color: rgba(13, 202, 240, 0.4);
    color: #0dcaf0; /* Cyan */
}

/* Tables: Make readable on dark bg */
.table-primary {
    --bs-table-bg: rgba(13, 110, 253, 0.2);
    --bs-table-color: var(--text-primary);
    border-color: rgba(13, 110, 253, 0.4);
}
.table-success {
    --bs-table-bg: rgba(25, 135, 84, 0.2);
    --bs-table-color: var(--text-primary);
    border-color: rgba(25, 135, 84, 0.4);
}
.table-danger {
    --bs-table-bg: rgba(220, 53, 69, 0.2);
    --bs-table-color: var(--text-primary);
    border-color: rgba(220, 53, 69, 0.4);
}
.table-warning {
    --bs-table-bg: rgba(255, 193, 7, 0.2);
    --bs-table-color: #ffca2c;
    border-color: rgba(255, 193, 7, 0.4);
}
.table-info {
    --bs-table-bg: rgba(13, 202, 240, 0.2);
    --bs-table-color: #0dcaf0;
    border-color: rgba(13, 202, 240, 0.4);
}
.table-light {
    --bs-table-bg: rgba(255, 255, 255, 0.1);
    --bs-table-color: var(--text-primary);
    border-color: var(--border-glass);
}
.table-dark {
    --bs-table-bg: rgba(33, 37, 41, 0.9);
    --bs-table-color: var(--text-primary);
    border-color: var(--border-glass);
}

/* Text Utilities: Ensure contrast */
.text-dark { color: var(--text-primary) !important; }
.text-black { color: var(--text-primary) !important; }
.text-secondary { color: var(--text-secondary) !important; }
.text-muted { color: var(--text-secondary) !important; }
.text-primary { color: var(--accent) !important; }

/* Brighter context colors for dark bg */
.text-danger { color: #ff6b6b !important; }
.text-warning { color: #ffca2c !important; }
.text-success { color: #2ecc71 !important; }
.text-info { color: #0dcaf0 !important; }

/* List Groups */
.list-group-item {
    background-color: rgba(255, 255, 255, 0.05);
    border-color: var(--border-glass);
    color: var(--text-primary);
}

/* Badges */
.badge.bg-light {
    background-color: rgba(255, 255, 255, 0.2) !important;
    color: var(--text-primary);
}

/* Ensure Links are visible */
a:not(.btn) {
    color: var(--accent);
    text-decoration: none;
}
a:not(.btn):hover {
    color: var(--accent-hover);
    text-decoration: underline;
}
/* Force Black Text for Light Backgrounds (e.g. bg-warning) */
.text-black-force, .text-black-force * {
    color: #000000 !important;
}

/* ==========================================================================
   Contrast Fixes (Post-Review)
   ========================================================================== */

/* Ensure all card content inherits light text color, not just .card-body */
.card, .card-header, .card-footer {
    color: var(--text-primary) !important;
}

/* Force paragraphs to be light (overriding user agent/bootstrap defaults) */
p {
    color: var(--text-primary);
}

/* Ensure bold text inherits color */
.fw-bold {
    color: inherit;
}

/* Fix specific dark text utility that might be used */
.text-dark {
    color: var(--text-primary) !important;
}