/* 
   Aqua-Logic Engineering - Custom Styles
   Theme: Fluid Digital Aesthetics
*/

:root {
    --color-primary: #0D47A1;    /* Deep Navy Blue */
    --color-accent: #FF7043;     /* Glowing Coral Orange */
    --color-oxygen: #B3E5FC;     /* Pure Dissolved Oxygen Blue */
    --color-eco: #66BB6A;        /* Biochemical Balance Green */
    --color-dark: #051937;
    --color-light: #f8f9fa;
    --font-main: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
}

body {
    font-family: var(--font-main);
    background-color: var(--color-dark);
    color: var(--color-light);
    overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    letter-spacing: -0.02em;
}

.font-mono {
    font-family: var(--font-mono);
}

/* Fluid Digital Aesthetics */
.glass-panel {
    background: rgba(13, 71, 161, 0.15);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(179, 229, 252, 0.2);
    border-radius: 12px;
}

.text-glow {
    text-shadow: 0 0 10px rgba(179, 229, 252, 0.5);
}

.text-coral {
    color: var(--color-accent);
}

/* Hero Section */
.hero-section {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: radial-gradient(circle at center, #0d47a1 0%, #051937 100%);
    overflow: hidden;
}

.sonar-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0.3;
    pointer-events: none;
}

/* Navbar */
.navbar {
    background: rgba(5, 25, 55, 0.8) !important;
    backdrop-filter: blur(15px);
    border-bottom: 1px solid rgba(179, 229, 252, 0.1);
}

.navbar-brand {
    font-weight: 800;
    color: var(--color-oxygen) !important;
    letter-spacing: 1px;
}

.nav-link {
    color: rgba(255, 255, 255, 0.8) !important;
    font-weight: 500;
    transition: all 0.3s ease;
}

.nav-link:hover, .nav-link.active {
    color: var(--color-accent) !important;
}

/* Buttons */
.btn-coral {
    background-color: var(--color-accent);
    color: white;
    border: none;
    padding: 10px 25px;
    border-radius: 50px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.btn-coral:hover {
    background-color: #ff8a65;
    box-shadow: 0 0 20px rgba(255, 112, 67, 0.4);
    transform: translateY(-2px);
}

.btn-outline-oxygen {
    border: 2px solid var(--color-oxygen);
    color: var(--color-oxygen);
    border-radius: 50px;
    padding: 10px 25px;
    font-weight: 600;
}

.btn-outline-oxygen:hover {
    background-color: var(--color-oxygen);
    color: var(--color-dark);
}

/* Dashboard Components */
.stat-card {
    padding: 20px;
    border-left: 4px solid var(--color-oxygen);
}

.stat-value {
    font-family: var(--font-mono);
    font-size: 1.5rem;
    color: var(--color-oxygen);
}

/* Animations */
@keyframes pulse-sonar {
    0% { transform: scale(0.8); opacity: 0.5; }
    100% { transform: scale(1.5); opacity: 0; }
}

.sonar-circle {
    position: absolute;
    border: 2px solid var(--color-oxygen);
    border-radius: 50%;
    animation: pulse-sonar 4s infinite;
}

/* Footer */
footer {
    background-color: #030c1b;
    padding: 60px 0 30px;
    border-top: 1px solid rgba(179, 229, 252, 0.1);
}