/* ============================================
   DOCKX - TACTICAL BLACK OPS THEME
   Built by Former 10th Mountain Division
   "Climb to Glory"
   ============================================ */

/* Reset & Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Tactical Color Palette */
    --tactical-black: #0a0a0a;
    --carbon-black: #0d0d0d;
    --deep-black: #050505;
    --gunmetal: #2c3338;
    --gunmetal-light: #3d4349;
    --gunmetal-dark: #1a1d20;

    /* Deep Reds (Military Grade) */
    --tactical-red: #8b0000;
    --blood-red: #a11;
    --danger-red: #cc1a1a;
    --red-glow: rgba(139, 0, 0, 0.5);

    /* Metallic Accents */
    --metal-shine: #707880;
    --metal-dark: #4a5158;
    --metal-highlight: #8a94a0;

    /* Status Colors */
    --target-green: #00ff41;
    --warning-amber: #ff9800;
    --offline-gray: #666;

    /* Gradients */
    --gradient-tactical: linear-gradient(135deg, #0a0a0a 0%, #2c3338 100%);
    --gradient-red: linear-gradient(135deg, #8b0000 0%, #a11 100%);
    --gradient-metal: linear-gradient(135deg, #2c3338 0%, #4a5158 100%);
    --gradient-carbon:
        linear-gradient(27deg, #151515 5%, transparent 5%) 0 5px,
        linear-gradient(207deg, #151515 5%, transparent 5%) 10px 0px,
        linear-gradient(27deg, #222 5%, transparent 5%) 0px 10px,
        linear-gradient(207deg, #222 5%, transparent 5%) 10px 5px,
        linear-gradient(90deg, #1b1b1b 10%, transparent 10%),
        linear-gradient(#1d1d1d 25%, #1a1a1a 25%, #1a1a1a 50%, transparent 50%, transparent 75%, #242424 75%, #242424);

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;

    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

    /* Tactical Shadows */
    --shadow-red: 0 0 20px rgba(139, 0, 0, 0.4);
    --shadow-metal: 0 4px 20px rgba(0, 0, 0, 0.8);
    --shadow-deep: 0 10px 40px rgba(0, 0, 0, 0.9);
    --shadow-inset: inset 0 1px 3px rgba(0, 0, 0, 0.5);

    /* Border Radius */
    --radius-sm: 0.125rem;
    --radius-md: 0.25rem;
    --radius-lg: 0.5rem;
    --radius-xl: 0.75rem;
}

body {
    font-family: var(--font-sans);
    line-height: 1.6;
    color: var(--metal-shine);
    background: var(--tactical-black);
    background-image: var(--gradient-carbon);
    background-size: 20px 20px;
    overflow-x: hidden;
}

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

/* ============================================
   TACTICAL NAVIGATION
   ============================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 2px solid var(--gunmetal);
    box-shadow: 0 2px 20px rgba(139, 0, 0, 0.3);
    z-index: 1000;
    padding: var(--spacing-sm) 0;
}

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

.nav-brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 1.5rem;
    font-weight: 900;
    color: white;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    text-shadow: 0 0 10px var(--red-glow);
}

.logo {
    font-size: 2rem;
    filter: drop-shadow(0 0 8px var(--tactical-red));
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-lg);
    align-items: center;
}

.nav-menu a {
    text-decoration: none;
    color: var(--metal-shine);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.875rem;
    letter-spacing: 0.05em;
    transition: all 0.3s;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
}

.nav-menu a:hover {
    color: var(--tactical-red);
    background: rgba(139, 0, 0, 0.1);
    box-shadow: 0 0 10px var(--red-glow);
}

/* ============================================
   HERO SECTION - MISSION BRIEFING
   ============================================ */
.hero {
    padding: calc(80px + var(--spacing-2xl)) 0 var(--spacing-2xl);
    background: var(--tactical-black);
    background-image:
        linear-gradient(rgba(139, 0, 0, 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(139, 0, 0, 0.05) 1px, transparent 1px);
    background-size: 50px 50px;
    position: relative;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(ellipse at center, rgba(139, 0, 0, 0.15) 0%, transparent 70%);
    pointer-events: none;
}

.hero-content {
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.hero-title {
    font-size: 4rem;
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: var(--spacing-md);
    color: white;
    text-transform: uppercase;
    letter-spacing: 0.02em;
    text-shadow: 0 0 30px var(--red-glow);
}

.gradient-text {
    background: var(--gradient-red);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    filter: drop-shadow(0 0 20px var(--red-glow));
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--metal-shine);
    margin-bottom: var(--spacing-xl);
    line-height: 1.8;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.8);
}

.hero-cta {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    margin-bottom: var(--spacing-xl);
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: var(--spacing-xl);
    padding-top: var(--spacing-xl);
    border-top: 2px solid var(--gunmetal);
    max-width: 600px;
    margin: 0 auto;
}

.stat {
    text-align: center;
}

.stat-number {
    font-size: 3rem;
    font-weight: 900;
    color: var(--tactical-red);
    text-shadow: 0 0 20px var(--red-glow);
}

.stat-label {
    font-size: 0.875rem;
    color: var(--metal-highlight);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

/* ============================================
   TACTICAL BUTTONS
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 1rem 2rem;
    border-radius: var(--radius-sm);
    font-weight: 700;
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    transition: all 0.3s;
    cursor: pointer;
    border: none;
    font-size: 0.875rem;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.btn:hover::before {
    left: 100%;
}

.btn-large {
    padding: 1.25rem 2.5rem;
    font-size: 1rem;
}

.btn-primary {
    background: var(--gradient-red);
    color: white;
    box-shadow: var(--shadow-red);
    border: 2px solid var(--tactical-red);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 30px var(--red-glow);
    border-color: var(--danger-red);
}

.btn-secondary {
    background: var(--gunmetal);
    color: white;
    border: 2px solid var(--metal-dark);
    box-shadow: var(--shadow-metal);
}

.btn-secondary:hover {
    border-color: var(--tactical-red);
    box-shadow: var(--shadow-red);
    background: var(--gunmetal-light);
}

.btn-icon {
    font-size: 1.25rem;
}

/* ============================================
   SECTIONS
   ============================================ */
.section {
    padding: var(--spacing-2xl) 0;
    background: var(--tactical-black);
}

.section:nth-child(even) {
    background: var(--carbon-black);
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.section-title {
    font-size: 2.5rem;
    font-weight: 900;
    margin-bottom: var(--spacing-md);
    color: white;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    text-shadow: 0 0 20px var(--red-glow);
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--metal-shine);
    max-width: 700px;
    margin: 0 auto;
}

/* ============================================
   KILLER FEATURES - TACTICAL SUPERIORITY
   ============================================ */
.killer-features {
    background: var(--deep-black);
    position: relative;
}

.killer-features::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        repeating-linear-gradient(0deg, transparent, transparent 2px, rgba(139, 0, 0, 0.03) 2px, rgba(139, 0, 0, 0.03) 4px);
    pointer-events: none;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-lg);
    position: relative;
    z-index: 1;
}

.feature-card {
    background: var(--gunmetal-dark);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    border: 2px solid var(--gunmetal);
    transition: all 0.3s;
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-metal);
    transition: all 0.3s;
}

.feature-card:hover {
    border-color: var(--tactical-red);
    box-shadow: var(--shadow-red);
    transform: translateY(-4px);
}

.feature-card:hover::before {
    background: var(--gradient-red);
    box-shadow: 0 0 20px var(--red-glow);
}

.feature-card.killer {
    background: linear-gradient(135deg, var(--gunmetal-dark) 0%, #1a0000 100%);
    border: 3px solid var(--tactical-red);
    box-shadow: 0 0 40px rgba(139, 0, 0, 0.3);
    position: relative;
}

.feature-card.killer::before {
    background: var(--gradient-red);
    height: 4px;
}

.feature-card.killer::after {
    content: "⚠️ TACTICAL SUPERIORITY";
    position: absolute;
    top: -14px;
    left: 20px;
    background: var(--tactical-red);
    color: white;
    padding: 6px 16px;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 900;
    letter-spacing: 0.1em;
    box-shadow: var(--shadow-red);
    text-transform: uppercase;
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
    filter: drop-shadow(0 0 10px var(--red-glow));
}

.feature-title {
    font-size: 1.5rem;
    font-weight: 800;
    margin-bottom: var(--spacing-sm);
    color: white;
    text-transform: uppercase;
    letter-spacing: 0.02em;
}

.feature-description {
    color: var(--metal-shine);
    margin-bottom: var(--spacing-md);
    line-height: 1.7;
}

.feature-code {
    background: #000;
    color: var(--target-green);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    font-family: 'Monaco', 'Courier New', monospace;
    font-size: 0.875rem;
    margin-bottom: var(--spacing-md);
    overflow-x: auto;
    border: 1px solid var(--gunmetal);
    box-shadow: var(--shadow-inset);
}

.feature-code code {
    display: block;
    margin-bottom: var(--spacing-xs);
    color: var(--tactical-red);
    font-weight: 700;
}

.feature-code pre {
    color: var(--target-green);
    margin-top: var(--spacing-xs);
    line-height: 1.5;
}

.feature-benefits {
    list-style: none;
    margin-bottom: var(--spacing-md);
}

.feature-benefits li {
    padding: var(--spacing-xs) 0;
    color: var(--metal-highlight);
    position: relative;
    padding-left: 1.5rem;
}

.feature-benefits li::before {
    content: '▸';
    position: absolute;
    left: 0;
    color: var(--tactical-red);
    font-weight: 900;
}

.feature-highlight {
    background: var(--tactical-red);
    color: white;
    padding: var(--spacing-sm);
    border-radius: var(--radius-sm);
    text-align: center;
    font-weight: 900;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    box-shadow: var(--shadow-red);
}

/* ============================================
   COMPARISON TABLE - TACTICAL ANALYSIS
   ============================================ */
.comparison {
    background: var(--carbon-black);
}

.comparison-table {
    overflow-x: auto;
}

.comparison-table table {
    width: 100%;
    border-collapse: collapse;
    background: var(--gunmetal-dark);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-deep);
    border: 2px solid var(--gunmetal);
}

.comparison-table th {
    background: var(--tactical-black);
    color: white;
    padding: var(--spacing-md);
    text-align: left;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-bottom: 2px solid var(--tactical-red);
}

.comparison-table th:first-child {
    color: var(--tactical-red);
}

.comparison-table td {
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--gunmetal);
    color: var(--metal-shine);
}

.comparison-table tr:hover {
    background: rgba(139, 0, 0, 0.05);
}

.comparison-table tr:last-child td {
    border-bottom: none;
}

.comparison-table .check {
    color: var(--target-green);
    font-weight: 900;
    text-shadow: 0 0 10px rgba(0, 255, 65, 0.5);
}

.comparison-table .cross {
    color: var(--tactical-red);
    font-weight: 900;
}

.comparison-table .partial {
    color: var(--warning-amber);
    font-weight: 700;
}

/* ============================================
   INSTALLATION - MISSION DEPLOYMENT
   ============================================ */
.install {
    background: var(--deep-black);
}

.install-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.install-card {
    background: var(--gunmetal-dark);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-metal);
    text-align: center;
    border: 2px solid var(--gunmetal);
    transition: all 0.3s;
}

.install-card:hover {
    border-color: var(--tactical-red);
    box-shadow: var(--shadow-red);
    transform: translateY(-4px);
}

.install-card h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
    color: white;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.install-card p {
    color: var(--metal-shine);
    margin-bottom: var(--spacing-md);
}

.install-code {
    background: #000;
    color: var(--target-green);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    font-family: 'Monaco', 'Courier New', monospace;
    font-size: 0.875rem;
    margin-bottom: var(--spacing-md);
    border: 1px solid var(--gunmetal);
    box-shadow: var(--shadow-inset);
}

.install-code code {
    display: block;
    color: var(--tactical-red);
    font-weight: 700;
}

.install-alternative {
    background: var(--gunmetal-dark);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-metal);
    border: 2px solid var(--gunmetal);
}

.install-alternative h4 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-md);
    text-align: center;
    color: white;
    text-transform: uppercase;
}

/* ============================================
   CTA SECTION - CALL TO ARMS
   ============================================ */
.cta {
    background: var(--gradient-red);
    color: white;
    position: relative;
    overflow: hidden;
}

.cta::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        repeating-linear-gradient(45deg, transparent, transparent 10px, rgba(0, 0, 0, 0.1) 10px, rgba(0, 0, 0, 0.1) 20px);
    pointer-events: none;
}

.cta-content {
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.cta-title {
    font-size: 2.5rem;
    font-weight: 900;
    margin-bottom: var(--spacing-md);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    text-shadow: 0 2px 20px rgba(0, 0, 0, 0.5);
}

.cta-subtitle {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-xl);
    opacity: 0.95;
}

.cta-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
}

.cta .btn-primary {
    background: white;
    color: var(--tactical-red);
    border-color: white;
}

.cta .btn-primary:hover {
    background: var(--metal-shine);
    color: white;
}

.cta .btn-secondary {
    background: transparent;
    border-color: white;
    color: white;
}

.cta .btn-secondary:hover {
    background: white;
    color: var(--tactical-red);
}

/* ============================================
   FOOTER - MISSION DEBRIEF
   ============================================ */
.footer {
    background: var(--tactical-black);
    color: var(--metal-shine);
    padding: var(--spacing-2xl) 0 var(--spacing-md);
    border-top: 2px solid var(--tactical-red);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-section h4 {
    color: white;
    font-size: 1.125rem;
    margin-bottom: var(--spacing-md);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: var(--spacing-xs);
}

.footer-section a {
    color: var(--metal-shine);
    text-decoration: none;
    transition: color 0.2s;
}

.footer-section a:hover {
    color: var(--tactical-red);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--gunmetal);
    color: var(--metal-dark);
}

.footer-bottom p {
    margin-bottom: var(--spacing-xs);
    font-size: 0.875rem;
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }

    .hero-cta {
        flex-direction: column;
    }

    .hero-stats {
        flex-direction: column;
        gap: var(--spacing-md);
    }

    .features-grid {
        grid-template-columns: 1fr;
    }

    .nav-menu {
        display: none;
    }

    .section-title {
        font-size: 2rem;
    }

    .cta-buttons {
        flex-direction: column;
    }
}

/* ============================================
   ANIMATIONS - TACTICAL MOVEMENTS
   ============================================ */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes pulse-red {
    0%, 100% {
        box-shadow: 0 0 20px rgba(139, 0, 0, 0.4);
    }
    50% {
        box-shadow: 0 0 40px rgba(139, 0, 0, 0.8);
    }
}

.hero-content,
.feature-card,
.install-card {
    animation: fadeInUp 0.6s ease-out;
}

.feature-card.killer {
    animation: fadeInUp 0.6s ease-out, pulse-red 3s ease-in-out infinite;
}

/* ============================================
   UTILITY CLASSES
   ============================================ */
.text-red {
    color: var(--tactical-red);
}

.text-metal {
    color: var(--metal-shine);
}

.bg-tactical {
    background: var(--tactical-black);
}

.border-red {
    border-color: var(--tactical-red);
}