/* ===== CSS RESET & BASE STYLES ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Color Palette - Dark Tactical Theme */
    --primary-black: #0a0a0a;
    --charcoal: #1a1a1a;
    --gunmetal: #2a2a2a;
    --steel: #3a3a3a;
    --silver: #8a8a8a;
    --white: #ffffff;
    
    /* Accent Colors - Ocean Theme */
    --accent-ocean: #00b4d8;
    --accent-deep: #0077b6;
    --accent-glow: rgba(0, 180, 216, 0.3);
    --accent-glow-deep: rgba(0, 119, 182, 0.4);
    
    /* Typography */
    --font-primary: 'Orbitron', monospace;
    --font-secondary: 'Roboto Mono', monospace;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-medium: 0.3s ease;
    --transition-slow: 0.5s ease;
}

body {
    font-family: var(--font-secondary);
    background-color: var(--primary-black);
    color: var(--white);
    line-height: 1.6;
    overflow-x: hidden;
    padding-top: 80px;
}

/* ===== TYPOGRAPHY ===== */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-primary);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--white);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
}

/* ===== HEADER & NAVIGATION ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--gunmetal);
    z-index: 1000;
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) var(--spacing-md);
    max-width: 1200px;
    margin: 0 auto;
}

.logo {
    display: flex;
    align-items: center;
}

.logo-text {
    font-family: var(--font-primary);
    font-size: 1.5rem;
    font-weight: 900;
    color: var(--accent-ocean);
    letter-spacing: 0.2em;
}


.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-md);
}

.nav-menu a {
    color: var(--white);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.9rem;
    letter-spacing: 0.1em;
    padding: var(--spacing-xs) var(--spacing-sm);
    border: 1px solid transparent;
    transition: all var(--transition-medium);
    position: relative;
}

.nav-menu a:hover {
    color: var(--accent-ocean);
    border-color: var(--accent-ocean);
    box-shadow: 0 0 10px var(--accent-glow);
}

/* ===== HERO SECTION ===== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: 
        linear-gradient(rgba(0, 0, 0, 0.8), rgba(0, 0, 0, 0.9)),
        url('1000_F_827188967_tl8JVlF1LgCDckKTbgHymGMpdEQNMBNb.jpg');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    backdrop-filter: blur(4px);
    background: 
        radial-gradient(circle at 20% 50%, var(--accent-glow) 0%, transparent 60%),
        radial-gradient(circle at 80% 20%, var(--accent-glow-deep) 0%, transparent 50%),
        linear-gradient(180deg, transparent 0%, rgba(0, 180, 216, 0.1) 50%, rgba(0, 119, 182, 0.2) 100%);
    opacity: 0.6;
}

.hero-content {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
    text-align: left;
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-xl) var(--spacing-md);
    position: relative;
    z-index: 2;
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: var(--spacing-md);
}

.title-line {
    display: block;
    position: relative;
}

.title-line.accent {
    color: var(--accent-ocean);
    text-shadow: 0 0 20px var(--accent-glow);
}

.hero-subtitle {
    font-size: 1.2rem;
    color: var(--silver);
    margin-bottom: var(--spacing-lg);
    font-weight: 300;
}

.hero-actions {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

/* ===== UNDERWATER DRONE ANIMATION ===== */
.underwater-scene {
    position: relative;
    width: 100%;
    max-width: 400px;
    height: 300px;
    background: 
        radial-gradient(ellipse at center top, rgba(0, 180, 216, 0.1) 0%, transparent 50%),
        linear-gradient(180deg, rgba(0, 119, 182, 0.05) 0%, rgba(0, 180, 216, 0.15) 100%);
    border: 2px solid var(--accent-ocean);
    border-radius: 10px;
    overflow: hidden;
    margin: 0 auto;
}

.water-layer {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        repeating-linear-gradient(
            90deg,
            transparent 0px,
            rgba(0, 180, 216, 0.03) 20px,
            transparent 40px
        );
    animation: water-flow 8s linear infinite;
}

.drone-container {
    position: absolute;
    width: 100%;
    height: 100%;
    animation: drone-patrol 3s linear infinite;
}

.drone {
    position: absolute;
    width: 20px;
    height: 8px;
    background: var(--accent-ocean);
    border-radius: 50% 10px 50% 10px;
    top: 50%;
    left: 20%;
    transform: translateY(-50%);
    box-shadow: 
        0 0 10px var(--accent-glow),
        inset 0 0 5px var(--accent-deep);
    animation: drone-maneuver 1.5s linear infinite;
}

.drone::before {
    content: '';
    position: absolute;
    top: 50%;
    left: -8px;
    width: 8px;
    height: 2px;
    background: var(--accent-deep);
    border-radius: 1px;
    transform: translateY(-50%);
    animation: propeller-spin 0.1s linear infinite;
}

.drone::after {
    content: '';
    position: absolute;
    top: 50%;
    right: -8px;
    width: 8px;
    height: 2px;
    background: var(--accent-deep);
    border-radius: 1px;
    transform: translateY(-50%);
    animation: propeller-spin 0.1s linear infinite reverse;
}


.sonar-pulse {
    position: absolute;
    width: 60px;
    height: 60px;
    border: 2px solid rgba(0, 180, 216, 0.4);
    border-radius: 50%;
    top: 50%;
    left: 20%;
    transform: translate(-50%, -50%);
    animation: sonar-expand 4s ease-out infinite;
}

.maneuver-path {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 30% 40%, rgba(0, 180, 216, 0.2) 2px, transparent 2px),
        radial-gradient(circle at 60% 70%, rgba(0, 180, 216, 0.2) 2px, transparent 2px),
        radial-gradient(circle at 80% 30%, rgba(0, 180, 216, 0.2) 2px, transparent 2px);
    animation: path-trace 8s ease-in-out infinite;
}

.depth-indicator {
    position: absolute;
    right: 10px;
    top: 20px;
    bottom: 20px;
    width: 3px;
    background: rgba(0, 180, 216, 0.2);
}

.depth-line {
    position: absolute;
    right: 0;
    width: 15px;
    height: 1px;
    background: var(--accent-ocean);
}

.depth-line:nth-child(1) {
    top: 20%;
    animation: depth-blink 3s infinite;
}

.depth-line:nth-child(2) {
    top: 50%;
    animation: depth-blink 3s infinite 1s;
}

.depth-line:nth-child(3) {
    top: 80%;
    animation: depth-blink 3s infinite 2s;
}

/* ===== BUTTONS ===== */
.btn {
    padding: var(--spacing-sm) var(--spacing-md);
    border: 2px solid;
    background: transparent;
    color: var(--white);
    font-family: var(--font-secondary);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    cursor: pointer;
    transition: all var(--transition-medium);
    position: relative;
    overflow: hidden;
    clip-path: polygon(0 0, calc(100% - 10px) 0, 100% 100%, 10px 100%);
}

.btn-primary {
    border-color: var(--accent-ocean);
    color: var(--accent-ocean);
}

.btn-primary:hover {
    background: var(--accent-ocean);
    color: var(--primary-black);
    box-shadow: 0 0 20px var(--accent-glow);
}

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

.btn-secondary:hover {
    background: var(--silver);
    color: var(--primary-black);
}

/* ===== SECTIONS ===== */
.section-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.section-title {
    font-size: 2.5rem;
    font-weight: 900;
    margin-bottom: var(--spacing-sm);
}

.section-divider {
    width: 100px;
    height: 3px;
    background: var(--accent-ocean);
    margin: 0 auto;
    position: relative;
}

.section-divider::before,
.section-divider::after {
    content: '';
    position: absolute;
    top: 0;
    width: 20px;
    height: 3px;
    background: var(--accent-ocean);
}

.section-divider::before {
    left: -30px;
}

.section-divider::after {
    right: -30px;
}

/* ===== TECHNOLOGY SECTION ===== */
.technology {
    padding: var(--spacing-xl) 0;
    background: var(--charcoal);
    position: relative;
}


.tech-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.tech-card {
    background: var(--gunmetal);
    padding: var(--spacing-lg);
    border: 1px solid var(--steel);
    text-align: center;
    transition: all var(--transition-medium);
    position: relative;
    clip-path: polygon(0 0, calc(100% - 20px) 0, 100% 20px, 100% 100%, 20px 100%, 0 calc(100% - 20px));
}

.tech-card:hover {
    border-color: var(--accent-ocean);
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.tech-icon {
    margin-bottom: var(--spacing-md);
    display: flex;
    justify-content: center;
}

.icon-shape {
    width: 60px;
    height: 60px;
    background: var(--accent-ocean);
    position: relative;
}

.icon-shape.velocity {
    clip-path: polygon(0 50%, 30% 0, 100% 50%, 30% 100%);
}

.icon-shape.maneuver {
    clip-path: polygon(50% 0%, 100% 50%, 50% 100%, 0% 50%);
    transform: rotate(45deg);
}

.icon-shape.autonomous {
    border-radius: 50%;
    background: radial-gradient(circle, var(--accent-ocean), var(--accent-ocean) 40%, transparent 40%);
}

.tech-card h3 {
    font-size: 1.2rem;
    margin-bottom: var(--spacing-sm);
    color: var(--accent-ocean);
}

.tech-card p {
    color: var(--silver);
    line-height: 1.8;
}

/* ===== CAPABILITIES SECTION ===== */
.capabilities {
    padding: var(--spacing-xl) 0;
    background: var(--primary-black);
}

.capability-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-md);
    align-items: start; /* Prevents cards from stretching to match row height */
}

.capability-card {
    background: var(--gunmetal);
    border: 2px solid var(--steel);
    border-radius: 8px;
    overflow: hidden;
    transition: all var(--transition-medium);
    position: relative;
}

.capability-card:hover {
    border-color: var(--accent-ocean);
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 180, 216, 0.2);
}

.capability-header {
    display: flex;
    align-items: center;
    padding: var(--spacing-md);
    gap: var(--spacing-sm);
    position: relative;
}

.capability-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.capability-card h3 {
    font-size: 1.1rem;
    color: var(--white);
    flex-grow: 1;
    margin: 0;
}

.expand-indicator {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--accent-ocean);
    transition: transform var(--transition-medium);
    line-height: 1;
}

.capability-card:hover .expand-indicator {
    transform: rotate(45deg);
}

.capability-details {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.5s ease, padding 0.5s ease, opacity 0.3s ease;
    background: rgba(26, 26, 26, 0.8);
    opacity: 0;
    padding: 0;
}

.capability-card:hover .capability-details {
    max-height: 400px;
    padding: var(--spacing-md);
    opacity: 1;
}

.capability-graphic {
    width: 100%;
    height: 120px;
    margin-bottom: var(--spacing-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(10, 10, 10, 0.5);
    border-radius: 4px;
    border: 1px solid var(--steel);
    position: relative;
    overflow: hidden;
}

.capability-details p {
    color: var(--silver);
    line-height: 1.6;
    margin: 0;
    font-size: 0.95rem;
}

/* ===== CAPABILITY ICONS ===== */
.icon-tactical {
    width: 30px;
    height: 30px;
    background: var(--accent-ocean);
    clip-path: polygon(50% 0%, 0% 100%, 100% 100%);
    position: relative;
}

.icon-tactical::after {
    content: '';
    position: absolute;
    top: 60%;
    left: 50%;
    width: 8px;
    height: 8px;
    background: var(--white);
    border-radius: 50%;
    transform: translate(-50%, -50%);
}

.icon-recon {
    width: 30px;
    height: 30px;
    border: 3px solid var(--accent-ocean);
    border-radius: 50%;
    position: relative;
}

.icon-recon::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 10px;
    height: 2px;
    background: var(--accent-ocean);
    transform: translate(-4px, -50%);
    animation: radar-sweep 2s linear infinite;
    transform-origin: 2px center;
}

.icon-construction {
    width: 30px;
    height: 30px;
    background: var(--accent-ocean);
    clip-path: polygon(0 0, 100% 0, 100% 70%, 85% 100%, 15% 100%, 0 70%);
    position: relative;
}

.icon-construction::after {
    content: '';
    position: absolute;
    top: 20%;
    left: 50%;
    width: 60%;
    height: 3px;
    background: var(--white);
    transform: translateX(-50%);
}

.icon-inspection {
    width: 30px;
    height: 30px;
    background: linear-gradient(45deg, var(--accent-ocean) 0%, var(--accent-ocean) 40%, transparent 40%, transparent 60%, var(--accent-ocean) 60%);
    border-radius: 4px;
    position: relative;
}

.icon-inspection::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 8px;
    height: 8px;
    border: 2px solid var(--white);
    border-radius: 50%;
    transform: translate(-50%, -50%);
}

.icon-defense {
    width: 30px;
    height: 30px;
    background: var(--accent-ocean);
    clip-path: polygon(50% 0%, 100% 38%, 82% 100%, 18% 100%, 0% 38%);
    position: relative;
}

.icon-defense::after {
    content: '';
    position: absolute;
    top: 40%;
    left: 50%;
    width: 12px;
    height: 12px;
    border: 2px solid var(--white);
    border-radius: 50%;
    transform: translate(-50%, -50%);
}

/* ===== CAPABILITY GRAPHICS ===== */
/* Tactical Interception Graphics */
.sonar-targeting {
    position: relative;
    width: 80px;
    height: 80px;
}

.sonar-pulse-tactical {
    position: absolute;
    width: 100%;
    height: 100%;
    border: 2px solid rgba(0, 180, 216, 0.6);
    border-radius: 50%;
    animation: sonar-expand 3s ease-out infinite;
}

.target-crosshair {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    transform: translate(-50%, -50%);
}

.target-crosshair::before,
.target-crosshair::after {
    content: '';
    position: absolute;
    background: var(--accent-ocean);
}

.target-crosshair::before {
    top: 50%;
    left: 0;
    width: 100%;
    height: 2px;
    transform: translateY(-50%);
}

.target-crosshair::after {
    top: 0;
    left: 50%;
    width: 2px;
    height: 100%;
    transform: translateX(-50%);
}

/* Construction Graphics */
.construction-arms {
    position: relative;
    width: 100px;
    height: 80px;
}

.robotic-arm {
    position: absolute;
    width: 30px;
    height: 3px;
    background: var(--accent-ocean);
    transform-origin: left center;
    border-radius: 2px;
}

.arm-1 {
    top: 30%;
    left: 20%;
    animation: arm-work 4s ease-in-out infinite;
}

.arm-2 {
    top: 60%;
    left: 20%;
    animation: arm-work 4s ease-in-out infinite reverse;
}

.work-zone {
    position: absolute;
    top: 70%;
    right: 20%;
    width: 15px;
    height: 15px;
    border: 2px solid var(--accent-ocean);
    border-radius: 2px;
    animation: construction-glow 2s ease-in-out infinite;
}

/* Inspection Graphics - Underwater Scene */
.underwater-scene-inspection {
    position: relative;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(ellipse at center top, rgba(0, 180, 216, 0.1) 0%, transparent 50%),
        linear-gradient(180deg, rgba(0, 119, 182, 0.05) 0%, rgba(0, 180, 216, 0.15) 100%);
    border: 1px solid var(--accent-ocean);
    border-radius: 4px;
    overflow: hidden;
}

.underwater-scene-inspection .water-layer {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        repeating-linear-gradient(
            90deg,
            transparent 0px,
            rgba(0, 180, 216, 0.03) 15px,
            transparent 30px
        );
    animation: water-flow 6s linear infinite;
}

.underwater-scene-inspection .drone-container {
    position: absolute;
    width: 100%;
    height: 100%;
    animation: drone-inspection-patrol 8s ease-in-out infinite;
}

.underwater-scene-inspection .drone {
    position: absolute;
    width: 12px;
    height: 6px;
    background: var(--accent-ocean);
    border-radius: 50% 10px 50% 10px;
    top: 50%;
    left: 20%;
    transform: translateY(-50%);
    box-shadow: 
        0 0 8px var(--accent-glow),
        inset 0 0 3px var(--accent-deep);
}

.underwater-scene-inspection .drone::before {
    content: '';
    position: absolute;
    top: 50%;
    left: -6px;
    width: 6px;
    height: 1px;
    background: var(--accent-deep);
    border-radius: 1px;
    transform: translateY(-50%);
    animation: propeller-spin 0.1s linear infinite;
}

.underwater-scene-inspection .drone::after {
    content: '';
    position: absolute;
    top: 50%;
    right: -6px;
    width: 6px;
    height: 1px;
    background: var(--accent-deep);
    border-radius: 1px;
    transform: translateY(-50%);
    animation: propeller-spin 0.1s linear infinite reverse;
}

.underwater-scene-inspection .sonar-pulse {
    position: absolute;
    width: 40px;
    height: 40px;
    border: 1px solid rgba(0, 180, 216, 0.4);
    border-radius: 50%;
    top: 50%;
    left: 20%;
    transform: translate(-50%, -50%);
    animation: sonar-expand 3s ease-out infinite;
}

.underwater-scene-inspection .maneuver-path {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 25% 35%, rgba(0, 180, 216, 0.3) 1px, transparent 1px),
        radial-gradient(circle at 50% 65%, rgba(0, 180, 216, 0.3) 1px, transparent 1px),
        radial-gradient(circle at 75% 25%, rgba(0, 180, 216, 0.3) 1px, transparent 1px),
        radial-gradient(circle at 65% 75%, rgba(0, 180, 216, 0.3) 1px, transparent 1px);
    animation: path-trace 6s ease-in-out infinite;
}

.underwater-scene-inspection .depth-indicator {
    position: absolute;
    right: 8px;
    top: 15px;
    bottom: 15px;
    width: 2px;
    background: rgba(0, 180, 216, 0.2);
}

.underwater-scene-inspection .depth-line {
    position: absolute;
    right: 0;
    width: 10px;
    height: 1px;
    background: var(--accent-ocean);
}

.underwater-scene-inspection .depth-line:nth-child(1) {
    top: 20%;
    animation: depth-blink 3s infinite;
}

.underwater-scene-inspection .depth-line:nth-child(2) {
    top: 50%;
    animation: depth-blink 3s infinite 1s;
}

.underwater-scene-inspection .depth-line:nth-child(3) {
    top: 80%;
    animation: depth-blink 3s infinite 2s;
}

/* Defense Graphics */
.defense-shield {
    position: relative;
    width: 80px;
    height: 80px;
}

.shield-ring {
    position: absolute;
    border: 2px solid rgba(0, 180, 216, 0.4);
    border-radius: 50%;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation: shield-pulse 3s ease-in-out infinite;
}

.shield-ring:nth-child(1) {
    width: 60%;
    height: 60%;
    animation-delay: 0s;
}

.shield-ring:nth-child(2) {
    width: 80%;
    height: 80%;
    animation-delay: 1s;
}

.patrol-path {
    position: absolute;
    top: 20%;
    left: 20%;
    width: 8px;
    height: 8px;
    background: var(--accent-ocean);
    border-radius: 50%;
    animation: patrol-movement 4s linear infinite;
}

/* ===== RADAR DISPLAY ===== */
.radar-display {
    width: 300px;
    height: 300px;
    border: 2px solid var(--accent-ocean);
    border-radius: 50%;
    position: relative;
    margin: 0 auto;
    background: 
        radial-gradient(circle at 30% 30%, rgba(0, 180, 216, 0.1) 0%, transparent 40%),
        radial-gradient(circle at 70% 60%, rgba(0, 119, 182, 0.15) 0%, transparent 50%),
        radial-gradient(circle, var(--charcoal) 0%, var(--primary-black) 70%);
    box-shadow: 
        0 0 30px var(--accent-glow),
        inset 0 0 30px rgba(0, 180, 216, 0.1);
}

.radar-ring {
    position: absolute;
    border: 1px solid rgba(0, 180, 216, 0.3);
    border-radius: 50%;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation: sonar-ripple 4s infinite;
}

.radar-ring:nth-child(1) {
    width: 80%;
    height: 80%;
    animation-delay: 0s;
}

.radar-ring:nth-child(2) {
    width: 60%;
    height: 60%;
    animation-delay: 1s;
}

.radar-ring:nth-child(3) {
    width: 40%;
    height: 40%;
    animation-delay: 2s;
}

.radar-sweep {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 2px;
    height: 50%;
    background: linear-gradient(to bottom, var(--accent-ocean), transparent);
    transform-origin: top center;
    transform: translate(-50%, -100%);
    animation: radar-sweep 3s linear infinite;
}

.radar-contact {
    position: absolute;
    width: 6px;
    height: 6px;
    background: var(--accent-ocean);
    border-radius: 50%;
    animation: radar-ping 2s infinite;
}

.radar-contact:nth-child(5) {
    top: 30%;
    left: 60%;
}

.radar-contact:nth-child(6) {
    top: 70%;
    left: 40%;
    animation-delay: 1s;
}

/* ===== SPECIFICATIONS SECTION ===== */
.specifications {
    padding: var(--spacing-xl) 0;
    background: var(--gunmetal);
}

.spec-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.spec-item {
    text-align: center;
    padding: var(--spacing-lg);
    background: var(--charcoal);
    border: 1px solid var(--steel);
    transition: all var(--transition-medium);
}

.spec-item:hover {
    border-color: var(--accent-ocean);
    transform: scale(1.05);
}

.spec-value {
    font-family: var(--font-primary);
    font-size: clamp(1.8rem, 4vw, 2.5rem);
    font-weight: 900;
    color: var(--accent-ocean);
    display: block;
    margin-bottom: var(--spacing-xs);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    line-height: 1.2;
}

.spec-label {
    font-size: 0.9rem;
    color: var(--silver);
    letter-spacing: 0.1em;
}

/* ===== MISSION SECTION ===== */
.mission {
    padding: var(--spacing-xl) 0;
    background: var(--primary-black);
}

.mission-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.mission-content h2 {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-lg);
}

.mission-content p {
    font-size: 1.2rem;
    color: var(--silver);
    margin-bottom: var(--spacing-xl);
    line-height: 1.8;
}

.mission-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
    margin-top: var(--spacing-xl);
}

.stat {
    text-align: center;
    padding: var(--spacing-md);
    border: 1px solid var(--steel);
    background: var(--charcoal);
}

.stat-number {
    display: block;
    font-family: var(--font-primary);
    font-size: 2.5rem;
    font-weight: 900;
    color: var(--accent-ocean);
    margin-bottom: var(--spacing-xs);
}

.stat-label {
    font-size: 0.9rem;
    color: var(--silver);
    letter-spacing: 0.1em;
}

/* ===== CONTACT SECTION ===== */
.contact {
    padding: var(--spacing-xl) 0;
    background: var(--charcoal);
}

.contact-content {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.contact-info h2 {
    font-size: 2.2rem;
    margin-bottom: var(--spacing-lg);
}

.contact-details {
    margin-bottom: var(--spacing-lg);
}

.contact-item {
    display: flex;
    justify-content: space-between;
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid var(--steel);
    margin-bottom: var(--spacing-sm);
}

.contact-label {
    color: var(--silver);
    font-weight: 500;
}

.contact-value {
    color: var(--white);
    font-family: var(--font-primary);
}


/* ===== FOOTER ===== */
.footer {
    background: var(--primary-black);
    border-top: 1px solid var(--gunmetal);
    padding: var(--spacing-md) 0;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-tagline {
    display: block;
    font-size: 0.8rem;
    color: var(--silver);
    margin-top: 0.2rem;
}

.footer-legal {
    color: var(--silver);
    font-size: 0.9rem;
}

/* ===== ANIMATIONS ===== */
@keyframes underwater-pulse {
    0%, 100% { 
        opacity: 1; 
        box-shadow: 0 0 20px var(--accent-glow);
    }
    50% { 
        opacity: 0.7; 
        box-shadow: 0 0 40px var(--accent-glow-deep);
    }
}

@keyframes sonar-ping {
    0%, 100% { 
        opacity: 1; 
        transform: scale(1);
        box-shadow: 0 0 15px var(--accent-glow), inset 0 0 10px var(--accent-deep);
    }
    50% { 
        opacity: 0.8; 
        transform: scale(1.05);
        box-shadow: 0 0 25px var(--accent-glow), inset 0 0 15px var(--accent-ocean);
    }
}

@keyframes wave-flow {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

@keyframes sonar-ripple {
    0%, 100% { 
        border-color: rgba(0, 180, 216, 0.3);
        transform: translate(-50%, -50%) scale(1);
    }
    50% { 
        border-color: rgba(0, 180, 216, 0.6);
        transform: translate(-50%, -50%) scale(1.02);
    }
}

@keyframes water-flow {
    0% { transform: translateX(-40px); }
    100% { transform: translateX(40px); }
}

@keyframes drone-patrol {
    0% { transform: translateX(0) translateY(0); }
    12.5% { transform: translateX(25%) translateY(-40px); }
    25% { transform: translateX(50%) translateY(20px); }
    37.5% { transform: translateX(35%) translateY(50px); }
    50% { transform: translateX(15%) translateY(-30px); }
    62.5% { transform: translateX(45%) translateY(-10px); }
    75% { transform: translateX(20%) translateY(40px); }
    87.5% { transform: translateX(40%) translateY(-25px); }
    100% { transform: translateX(0) translateY(0); }
}

@keyframes drone-maneuver {
    0% { transform: translateY(-50%) rotate(0deg); }
    20% { transform: translateY(-50%) rotate(-45deg); }
    40% { transform: translateY(-50%) rotate(30deg); }
    60% { transform: translateY(-50%) rotate(-60deg); }
    80% { transform: translateY(-50%) rotate(25deg); }
    100% { transform: translateY(-50%) rotate(0deg); }
}

@keyframes propeller-spin {
    0% { transform: translateY(-50%) scaleX(1); }
    50% { transform: translateY(-50%) scaleX(0.2); }
    100% { transform: translateY(-50%) scaleX(1); }
}


@keyframes sonar-expand {
    0% { 
        opacity: 0.8; 
        transform: translate(-50%, -50%) scale(0.5); 
    }
    50% { 
        opacity: 0.4; 
        transform: translate(-50%, -50%) scale(1.2); 
    }
    100% { 
        opacity: 0; 
        transform: translate(-50%, -50%) scale(2); 
    }
}

@keyframes path-trace {
    0%, 100% { opacity: 0.3; }
    50% { opacity: 0.8; }
}

@keyframes depth-blink {
    0%, 70%, 100% { opacity: 0.3; }
    35% { opacity: 1; }
}

@keyframes radar-sweep {
    0% { transform: translateX(-50%) rotate(0deg); }
    100% { transform: translateX(-50%) rotate(360deg); }
}

@keyframes radar-ping {
    0% { transform: scale(1); opacity: 1; }
    100% { transform: scale(2); opacity: 0; }
}

@keyframes arm-work {
    0%, 100% { transform: rotate(0deg); }
    50% { transform: rotate(45deg); }
}

@keyframes construction-glow {
    0%, 100% { opacity: 0.5; box-shadow: 0 0 5px var(--accent-glow); }
    50% { opacity: 1; box-shadow: 0 0 15px var(--accent-glow); }
}

@keyframes scan-sweep {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

@keyframes data-pulse {
    0%, 100% { opacity: 0.3; transform: translate(-50%, -50%) scale(1); }
    50% { opacity: 1; transform: translate(-50%, -50%) scale(1.5); }
}

@keyframes shield-pulse {
    0%, 100% { opacity: 0.4; transform: translate(-50%, -50%) scale(1); }
    50% { opacity: 0.8; transform: translate(-50%, -50%) scale(1.05); }
}

@keyframes patrol-movement {
    0% { transform: translate(0, 0); }
    25% { transform: translate(40px, 0); }
    50% { transform: translate(40px, 40px); }
    75% { transform: translate(0, 40px); }
    100% { transform: translate(0, 0); }
}

@keyframes drone-inspection-patrol {
    0% { transform: translate(0, 0); }
    12% { transform: translate(25%, -30px); }
    15% { transform: translate(25%, -30px); } /* Pause */
    18% { transform: translate(25%, -30px); }
    30% { transform: translate(50%, 20px); }
    33% { transform: translate(50%, 20px); } /* Pause */
    36% { transform: translate(50%, 20px); }
    48% { transform: translate(35%, 40px); }
    51% { transform: translate(35%, 40px); } /* Pause */
    54% { transform: translate(35%, 40px); }
    66% { transform: translate(15%, -20px); }
    69% { transform: translate(15%, -20px); } /* Pause */
    72% { transform: translate(15%, -20px); }
    84% { transform: translate(45%, -10px); }
    87% { transform: translate(45%, -10px); } /* Pause */
    90% { transform: translate(45%, -10px); }
    100% { transform: translate(0, 0); }
}

@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}


/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 768px) {
    .nav {
        flex-direction: column;
        gap: var(--spacing-sm);
        padding: var(--spacing-sm);
    }
    
    .nav-menu {
        gap: var(--spacing-sm);
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .hero-content {
        padding: var(--spacing-md);
    }
    
    .capability-cards {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .capability-card {
        min-width: 280px;
    }
    
    /* On mobile, cards expand on first tap/touch */
    .capability-card:active .capability-details {
        max-height: 400px;
        padding: var(--spacing-md);
        opacity: 1;
    }
    
    .capability-card:active .expand-indicator {
        transform: rotate(45deg);
    }
    
    
    .mission-stats {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }
    
    .spec-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-content {
        flex-direction: column;
        gap: var(--spacing-sm);
        text-align: center;
    }
    
    .hero-actions {
        justify-content: center;
    }
    
    .btn {
        flex: 1;
        min-width: 150px;
    }
}

/* Touch device support */
@media (hover: none) and (pointer: coarse) {
    .capability-card {
        cursor: default;
    }
    
    /* Allow expansion on touch devices */
    .capability-card:focus-within .capability-details,
    .capability-card:target .capability-details {
        max-height: 400px;
        padding: var(--spacing-md);
        opacity: 1;
    }
    
    .capability-card:focus-within .expand-indicator,
    .capability-card:target .expand-indicator {
        transform: rotate(45deg);
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .spec-grid {
        grid-template-columns: 1fr;
    }
    
    .tech-grid {
        grid-template-columns: 1fr;
    }
    
    .underwater-scene {
        max-width: 320px;
        height: 240px;
    }
    
    .radar-display {
        width: 250px;
        height: 250px;
    }
    
    .container {
        padding: 0 var(--spacing-xs);
    }
    
    .hero-content {
        padding: var(--spacing-md) var(--spacing-xs);
    }
}

/* ===== ACCESSIBILITY ===== */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* ===== PRINT STYLES ===== */
@media print {
    .header,
    .footer,
    .hero-visual,
    .tactical-grid,
    .radar-display {
        display: none;
    }
    
    body {
        background: white;
        color: black;
    }
}