/* ========================================
   GPO Edge Autonomy - Landing Page Styles
   ======================================== */

/* CSS Variables */
:root {
    --color-bg: #0a0a0f;
    --color-bg-secondary: #12121a;
    --color-bg-tertiary: #1a1a24;
    --color-text: #ffffff;
    --color-text-secondary: #a0a0b0;
    --color-text-muted: #606070;
    --color-primary: #00ffd1;
    --color-primary-dark: #00ccaa;
    --color-accent: #00b4d8;
    --color-border: #2a2a3a;
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --transition: 0.3s ease;
    --radius: 12px;
    --radius-sm: 8px;
    --radius-lg: 20px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

a {
    color: inherit;
    text-decoration: none;
    transition: color var(--transition);
}

img {
    max-width: 100%;
    height: auto;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Navigation */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 10, 15, 0.9);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--color-border);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.logo {
    display: flex;
    align-items: baseline;
    gap: 8px;
}

.logo-text {
    font-size: 24px;
    font-weight: 800;
    color: var(--color-primary);
}

.logo-sub {
    font-size: 14px;
    font-weight: 500;
    color: var(--color-text-secondary);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-links a {
    font-size: 14px;
    font-weight: 500;
    color: var(--color-text-secondary);
}

.nav-links a:hover {
    color: var(--color-primary);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-family: inherit;
    font-weight: 600;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition);
}

.btn-sm {
    padding: 8px 16px;
    font-size: 14px;
}

.btn-lg {
    padding: 14px 28px;
    font-size: 16px;
}

.btn-primary {
    background: var(--color-primary);
    color: var(--color-bg);
}

.btn-primary:hover {
    background: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(0, 255, 209, 0.3);
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--color-border);
    color: var(--color-text);
}

.btn-outline:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.btn-full {
    width: 100%;
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 120px 0 80px;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(ellipse at 20% 50%, rgba(0, 255, 209, 0.1) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 20%, rgba(0, 180, 216, 0.1) 0%, transparent 40%);
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 700px;
}

.hero-badge {
    display: inline-block;
    padding: 8px 16px;
    background: rgba(0, 255, 209, 0.1);
    border: 1px solid rgba(0, 255, 209, 0.3);
    border-radius: 100px;
    font-size: 13px;
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: 24px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.hero h1 {
    font-size: clamp(40px, 6vw, 64px);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 24px;
}

.gradient-text {
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 18px;
    color: var(--color-text-secondary);
    margin-bottom: 40px;
    max-width: 560px;
}

.hero-cta {
    display: flex;
    gap: 16px;
    margin-bottom: 60px;
}

.hero-stats {
    display: flex;
    gap: 48px;
}

.stat {
    display: flex;
    flex-direction: column;
}

.stat-value {
    font-size: 32px;
    font-weight: 700;
    color: var(--color-primary);
}

.stat-label {
    font-size: 14px;
    color: var(--color-text-muted);
}

/* Hero Visual */
.hero-visual {
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 50%;
    height: 80%;
    pointer-events: none;
}

.drone-graphic {
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.targeting-overlay {
    position: relative;
    width: 300px;
    height: 300px;
}

.target-box {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 120px;
    height: 120px;
    border: 2px solid var(--color-primary);
    animation: pulse 2s ease-in-out infinite;
}

.target-box::before,
.target-box::after {
    content: '';
    position: absolute;
    background: var(--color-primary);
}

.target-box::before {
    top: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 16px;
    height: 2px;
}

.target-box::after {
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 16px;
    height: 2px;
}

.tracking-line {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 200px;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--color-primary), transparent);
    transform: translateX(-50%);
    animation: scan 3s ease-in-out infinite;
}

.ai-indicator {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    padding: 4px 12px;
    background: rgba(0, 255, 209, 0.2);
    border: 1px solid var(--color-primary);
    font-size: 12px;
    font-weight: 700;
    color: var(--color-primary);
    letter-spacing: 2px;
    animation: blink 1s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: translate(-50%, -50%) scale(1); }
    50% { opacity: 0.6; transform: translate(-50%, -50%) scale(1.1); }
}

@keyframes scan {
    0%, 100% { transform: translateX(-50%) rotate(0deg); }
    50% { transform: translateX(-50%) rotate(180deg); }
}

@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* Section Styles */
section {
    padding: 100px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-tag {
    display: inline-block;
    padding: 6px 14px;
    background: rgba(0, 255, 209, 0.1);
    border-radius: 100px;
    font-size: 12px;
    font-weight: 600;
    color: var(--color-primary);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 16px;
}

.section-header h2 {
    font-size: clamp(32px, 4vw, 44px);
    font-weight: 700;
    margin-bottom: 16px;
}

.section-desc {
    font-size: 18px;
    color: var(--color-text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* Problem Section */
.problem {
    background: var(--color-bg-secondary);
}

.problem-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
}

.problem-card {
    padding: 32px;
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    transition: all var(--transition);
}

.problem-card:hover {
    border-color: rgba(0, 255, 209, 0.3);
    transform: translateY(-4px);
}

.problem-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 255, 209, 0.1);
    border-radius: var(--radius-sm);
    margin-bottom: 20px;
}

.problem-icon svg {
    width: 24px;
    height: 24px;
    color: var(--color-primary);
}

.problem-card h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 12px;
}

.problem-card p {
    color: var(--color-text-secondary);
    font-size: 15px;
}

/* Features Section */
.solution {
    background: var(--color-bg);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: 24px;
}

.feature-card {
    padding: 32px;
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    transition: all var(--transition);
}

.feature-card:hover {
    border-color: rgba(0, 255, 209, 0.3);
}

.feature-main {
    grid-column: span 12;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 48px;
    background: linear-gradient(135deg, var(--color-bg-secondary), var(--color-bg-tertiary));
}

.feature-card:not(.feature-main) {
    grid-column: span 6;
}

@media (min-width: 900px) {
    .feature-card:not(.feature-main) {
        grid-column: span 4;
    }
}

.feature-visual {
    margin-bottom: 24px;
}

.ai-loop {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 24px;
    background: rgba(0, 255, 209, 0.05);
    border: 1px solid rgba(0, 255, 209, 0.2);
    border-radius: var(--radius);
    flex-wrap: wrap;
    justify-content: center;
}

.loop-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.step-num {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-primary);
    color: var(--color-bg);
    border-radius: 50%;
    font-size: 14px;
    font-weight: 700;
}

.step-text {
    font-size: 13px;
    font-weight: 500;
    color: var(--color-text-secondary);
    white-space: nowrap;
}

.loop-arrow {
    color: var(--color-primary);
    font-size: 20px;
}

.feature-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 255, 209, 0.1);
    border-radius: var(--radius-sm);
    margin-bottom: 20px;
}

.feature-icon svg {
    width: 28px;
    height: 28px;
    color: var(--color-primary);
}

.feature-card h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 12px;
}

.feature-card p {
    color: var(--color-text-secondary);
    font-size: 14px;
}

/* Specs Section */
.specs {
    background: var(--color-bg-secondary);
}

.specs-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
}

@media (max-width: 900px) {
    .specs-content {
        grid-template-columns: 1fr;
    }
}

.specs-info h2 {
    font-size: 36px;
    font-weight: 700;
    margin: 16px 0;
}

.specs-info > p {
    color: var(--color-text-secondary);
    margin-bottom: 32px;
}

.specs-list {
    display: grid;
    gap: 16px;
}

.spec-item {
    display: flex;
    justify-content: space-between;
    padding: 16px;
    background: var(--color-bg-tertiary);
    border-radius: var(--radius-sm);
}

.spec-label {
    color: var(--color-text-secondary);
}

.spec-value {
    font-weight: 600;
    color: var(--color-primary);
}

.specs-comparison h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 24px;
}

.comparison-table {
    width: 100%;
    border-collapse: collapse;
}

.comparison-table th,
.comparison-table td {
    padding: 16px;
    text-align: left;
    border-bottom: 1px solid var(--color-border);
}

.comparison-table th {
    font-size: 14px;
    font-weight: 600;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.comparison-table th.highlight {
    color: var(--color-primary);
}

.comparison-table td.highlight {
    color: var(--color-primary);
    font-weight: 600;
}

.comparison-table tbody tr:hover {
    background: rgba(0, 255, 209, 0.03);
}

/* Applications Section */
.applications {
    background: var(--color-bg);
}

.applications-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 32px;
}

.app-card {
    padding: 40px;
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    transition: all var(--transition);
}

.app-card:hover {
    border-color: rgba(0, 255, 209, 0.3);
    transform: translateY(-4px);
}

.app-icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 255, 209, 0.1);
    border-radius: var(--radius);
    margin-bottom: 24px;
}

.app-icon svg {
    width: 32px;
    height: 32px;
    color: var(--color-primary);
}

.app-card h3 {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 16px;
}

.app-card > p {
    color: var(--color-text-secondary);
    margin-bottom: 24px;
}

.app-features {
    list-style: none;
}

.app-features li {
    padding: 8px 0;
    padding-left: 20px;
    position: relative;
    color: var(--color-text-secondary);
    font-size: 14px;
}

.app-features li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 6px;
    height: 6px;
    background: var(--color-primary);
    border-radius: 50%;
}

/* Traction Section */
.traction {
    background: linear-gradient(135deg, var(--color-bg-secondary), var(--color-bg-tertiary));
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}

.traction-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

@media (max-width: 800px) {
    .traction-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
}

.traction-text h2 {
    font-size: 36px;
    font-weight: 700;
    margin: 16px 0 32px;
}

.traction-list {
    list-style: none;
}

.traction-list li {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 12px 0;
    font-size: 16px;
}

.traction-list svg {
    width: 24px;
    height: 24px;
    color: var(--color-primary);
    flex-shrink: 0;
    margin-top: 2px;
}

.traction-cta {
    text-align: center;
    padding: 48px;
    background: rgba(0, 255, 209, 0.05);
    border: 1px solid rgba(0, 255, 209, 0.2);
    border-radius: var(--radius-lg);
}

.traction-cta p {
    font-size: 18px;
    color: var(--color-text-secondary);
    margin-bottom: 24px;
}

/* Contact Section */
.contact {
    background: var(--color-bg);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
}

@media (max-width: 900px) {
    .contact-content {
        grid-template-columns: 1fr;
        gap: 48px;
    }
}

.contact-info h2 {
    font-size: 36px;
    font-weight: 700;
    margin: 16px 0;
}

.contact-info > p {
    color: var(--color-text-secondary);
    margin-bottom: 32px;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 16px;
}

.contact-item svg {
    width: 24px;
    height: 24px;
    color: var(--color-primary);
}

.contact-item a:hover {
    color: var(--color-primary);
}

/* Contact Form */
.contact-form {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-size: 14px;
    font-weight: 500;
    color: var(--color-text-secondary);
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 14px 16px;
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-family: inherit;
    font-size: 16px;
    color: var(--color-text);
    transition: all var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(0, 255, 209, 0.1);
}

.form-group select {
    cursor: pointer;
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

/* Form Status */
.form-status {
    margin-top: 16px;
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    font-size: 14px;
    text-align: center;
    display: none;
}

.form-status.success {
    display: block;
    background: rgba(0, 255, 209, 0.1);
    border: 1px solid var(--color-primary);
    color: var(--color-primary);
}

.form-status.error {
    display: block;
    background: rgba(255, 100, 100, 0.1);
    border: 1px solid #ff6464;
    color: #ff6464;
}

button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* Footer */
.footer {
    background: var(--color-bg-secondary);
    padding: 60px 0 30px;
    border-top: 1px solid var(--color-border);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    margin-bottom: 48px;
}

@media (max-width: 700px) {
    .footer-content {
        flex-direction: column;
        gap: 40px;
    }
}

.footer-brand p {
    margin-top: 16px;
    color: var(--color-text-muted);
    font-size: 14px;
}

.footer-links {
    display: flex;
    gap: 80px;
}

.footer-col h4 {
    font-size: 14px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--color-text-muted);
    margin-bottom: 20px;
}

.footer-col a {
    display: block;
    padding: 8px 0;
    color: var(--color-text-secondary);
    font-size: 14px;
}

.footer-col a:hover {
    color: var(--color-primary);
}

.footer-bottom {
    padding-top: 30px;
    border-top: 1px solid var(--color-border);
    text-align: center;
}

.footer-bottom p {
    font-size: 14px;
    color: var(--color-text-muted);
}

/* Responsive */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .hero {
        padding: 100px 0 60px;
    }

    .hero-visual {
        display: none;
    }

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

    .hero-stats {
        flex-wrap: wrap;
        gap: 32px;
    }

    section {
        padding: 60px 0;
    }

    .traction-list li {
        justify-content: center;
    }
}