/* ===== ГЛОБАЛЬНЫЕ ===== */
* { margin: 0; padding: 0; box-sizing: border-box; }

:root {
    --bg: #0a0e17;
    --bg-card: #111d2e;
    --accent: #00d4ff;
    --accent2: #00ff88;
    --text: #e0e8f0;
    --glass: rgba(255,255,255,0.05);
}

body {
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    scroll-behavior: smooth;
}

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

.highlight {
    color: var(--accent);
    text-shadow: 0 0 20px rgba(0,212,255,0.3);
}

/* ===== ШАПКА ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: rgba(10,14,23,0.85);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(0,212,255,0.15);
    padding: 12px 0;
}

.header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
}

.logo {
    font-size: 24px;
    font-weight: 800;
    letter-spacing: -0.5px;
}
.logo-icon { font-size: 28px; margin-right: 8px; }
.logo-text .highlight { color: var(--accent2); }

.nav {
    display: flex;
    gap: 24px;
    flex-wrap: wrap;
}
.nav a {
    color: var(--text);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: 0.3s;
    opacity: 0.7;
}
.nav a:hover { opacity: 1; color: var(--accent); }

.btn {
    display: inline-block;
    padding: 10px 28px;
    border: none;
    border-radius: 50px;
    font-weight: 600;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
}
.btn-primary {
    background: var(--accent);
    color: #0a0e17;
}
.btn-primary:hover {
    box-shadow: 0 0 30px rgba(0,212,255,0.4);
    transform: scale(1.05);
}
.btn-secondary {
    background: var(--accent2);
    color: #0a0e17;
}
.btn-secondary:hover {
    box-shadow: 0 0 30px rgba(0,255,136,0.4);
    transform: scale(1.05);
}
.btn-outline {
    background: transparent;
    border: 2px solid var(--accent);
    color: var(--accent);
}
.btn-outline:hover {
    background: var(--accent);
    color: #0a0e17;
}
.btn-large {
    padding: 14px 48px;
    font-size: 18px;
}

/* ===== HERO ===== */
.hero {
    padding: 140px 0 80px;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: radial-gradient(ellipse at 20% 50%, #0a1a2e 0%, #0a0e17 70%);
    position: relative;
    overflow: hidden;
}
.hero::before {
    content: '';
    position: absolute;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(0,212,255,0.06) 0%, transparent 70%);
    top: -200px;
    right: -200px;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 2;
}

.hero-badge {
    display: inline-block;
    background: rgba(0,212,255,0.15);
    border: 1px solid rgba(0,212,255,0.3);
    padding: 4px 16px;
    border-radius: 50px;
    font-size: 12px;
    color: var(--accent);
    margin-bottom: 20px;
}
.hero-text h1 {
    font-size: clamp(36px, 5vw, 64px);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 20px;
}
.hero-text p {
    font-size: 18px;
    opacity: 0.8;
    margin-bottom: 32px;
    max-width: 500px;
}
.hero-buttons {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 40px;
}
.hero-stats {
    display: flex;
    gap: 24px;
    flex-wrap: wrap;
    font-size: 14px;
    opacity: 0.7;
}
.hero-stats span {
    background: var(--glass);
    padding: 4px 14px;
    border-radius: 50px;
    border: 1px solid rgba(255,255,255,0.05);
}

/* Дрон анимация */
.hero-image {
    display: flex;
    justify-content: center;
}
.drone-animation {
    width: 280px;
    height: 280px;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}
.drone-body {
    font-size: 120px;
    animation: float 4s ease-in-out infinite;
    filter: drop-shadow(0 0 40px rgba(0,212,255,0.3));
}
.drone-propeller {
    position: absolute;
    width: 80px;
    height: 12px;
    background: rgba(0,212,255,0.3);
    border-radius: 50px;
    animation: spin 0.8s linear infinite;
}
.drone-propeller:nth-child(1) { top: 20px; left: 50%; transform: translateX(-50%); }
.drone-propeller:nth-child(2) { bottom: 20px; left: 50%; transform: translateX(-50%); }

@keyframes float { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-20px); } }
@keyframes spin { 100% { transform: translateX(-50%) rotate(360deg); } }

/* ===== СЕКЦИИ ===== */
.section {
    padding: 80px 0;
}
.section-dark {
    background: #0b121f;
    border-top: 1px solid rgba(255,255,255,0.03);
    border-bottom: 1px solid rgba(255,255,255,0.03);
}
.section-title {
    font-size: clamp(28px, 3.5vw, 44px);
    font-weight: 700;
    text-align: center;
    margin-bottom: 48px;
}

/* Карточки */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 30px;
}
.card {
    background: var(--bg-card);
    padding: 32px 24px;
    border-radius: 16px;
    border: 1px solid rgba(255,255,255,0.05);
    transition: 0.4s;
    text-align: center;
}
.card:hover {
    transform: translateY(-8px);
    border-color: var(--accent);
    box-shadow: 0 20px 40px rgba(0,0,0,0.4);
}
.card-icon { font-size: 48px; margin-bottom: 16px; }
.card h3 { font-size: 20px; margin-bottom: 10px; color: #fff; }
.card p { opacity: 0.7; font-size: 14px; }

/* Оборудование */
.equipment-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}
.equip-item {
    display: flex;
    gap: 16px;
    background: var(--glass);
    padding: 20px;
    border-radius: 12px;
    border-left: 3px solid var(--accent);
}
.equip-emoji { font-size: 32px; flex-shrink: 0; }
.equip-item h4 { color: #fff; font-size: 16px; }
.equip-item p { opacity: 0.7; font-size: 14px; }

/* ===== AI БЛОК ===== */
.ai-block {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
}
.ai-text ul {
    list-style: none;
    margin: 20px 0 30px;
}
.ai-text ul li {
    padding: 8px 0;
    border-bottom: 1px solid rgba(255,255,255,0.04);
}
.ai-chat-preview {
    background: #0a1420;
    border-radius: 16px;
    padding: 24px;
    border: 1px solid rgba(0,212,255,0.15);
}
.chat-message {
    padding: 10px 16px;
    border-radius: 12px;
    margin-bottom: 10px;
    max-width: 85%;
    font-size: 14px;
}
.chat-message.bot {
    background: #15263b;
    color: #c0d0e0;
    border-bottom-left-radius: 4px;
}
.chat-message.user {
    background: var(--accent);
    color: #0a0e17;
    margin-left: auto;
    border-bottom-right-radius: 4px;
}

/* ===== ФОРМА ===== */
.form-wrapper {
    max-width: 500px;
    margin: 0 auto;
}
.signup-form {
    background: var(--bg-card);
    padding: 40px;
    border-radius: 20px;
    border: 1px solid rgba(255,255,255,0.05);
}
.form-group {
    margin-bottom: 20px;
}
.form-group label {
    display: block;
    font-weight: 500;
    font-size: 14px;
    margin-bottom: 6px;
    opacity: 0.8;
}
.form-group input,
.form-group select {
    width: 100%;
    padding: 12px 16px;
    border-radius: 10px;
    border: 1px solid rgba(255,255,255,0.1);
    background: rgba(0,0,0,0.3);
    color: #fff;
    font-size: 16px;
    transition: 0.3s;
}
.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 20px rgba(0,212,255,0.1);
}
.form-group input::placeholder { color: rgba(255,255,255,0.3); }
.form-hint {
    text-align: center;
    opacity: 0.5;
    font-size: 13px;
    margin-top: 12px;
}

#formSuccess {
    display: none;
    text-align: center;
    padding: 30px;
    background: #0a2a1a;
    border-radius: 16px;
    border: 1px solid var(--accent2);
}

/* ===== КОНТАКТЫ ===== */
.contacts-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 40px;
    align-items: center;
}
.contacts-grid p { margin-bottom: 8px; }
.contacts-grid a { color: var(--accent); text-decoration: none; }
.social-links { display: flex; gap: 12px; flex-wrap: wrap; }
.social {
    padding: 8px 20px;
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 50px;
    color: var(--text);
    text-decoration: none;
    font-size: 14px;
    transition: 0.3s;
}
.social:hover { border-color: var(--accent); color: var(--accent); }

/* ===== ПОДВАЛ ===== */
.footer {
    padding: 30px 0;
    border-top: 1px solid rgba(255,255,255,0.04);
    text-align: center;
    opacity: 0.6;
    font-size: 13px;
}
.footer p { margin: 4px 0; }

/* ===== МОДАЛКА ===== */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0; top: 0;
    width: 100%; height: 100%;
    background: rgba(0,0,0,0.7);
    backdrop-filter: blur(4px);
}
.modal-content {
    background: #0e1a2a;
    border: 1px solid rgba(0,212,255,0.2);
    border-radius: 24px;
    padding: 32px;
    max-width: 600px;
    width: 92%;
    margin: 80px auto;
    max-height: 80vh;
    display: flex;
    flex-direction: column;
    position: relative;
}
.modal-close {
    position: absolute;
    right: 20px; top: 12px;
    font-size: 28px;
    cursor: pointer;
    opacity: 0.5;
    transition: 0.3s;
    color: #fff;
}
.modal-close:hover { opacity: 1; }
.ai-chat-box {
    flex: 1;
    overflow-y: auto;
    max-height: 300px;
    padding: 8px 0;
    margin: 16px 0;
    border-top: 1px solid rgba(255,255,255,0.05);
    border-bottom: 1px solid rgba(255,255,255,0.05);
}
.ai-input-row {
    display: flex;
    gap: 12px;
}
.ai-input-row input {
    flex: 1;
    padding: 12px 16px;
    border-radius: 50px;
    border: 1px solid rgba(255,255,255,0.1);
    background: rgba(0,0,0,0.3);
    color: #fff;
}
.ai-input-row button {
    padding: 12px 24px;
    border: none;
    border-radius: 50px;
    background: var(--accent);
    color: #0a0e17;
    font-weight: 700;
    cursor: pointer;
    font-size: 18px;
}
.ai-hint { font-size: 12px; opacity: 0.4; text-align: center; margin-top: 8px; }

/* ===== АДАПТИВ ===== */
@media (max-width: 1024px) {
    .hero-grid { grid-template-columns: 1fr; text-align: center; }
    .hero-text p { margin-left: auto; margin-right: auto; }
    .hero-buttons { justify-content: center; }
    .hero-stats { justify-content: center; }
    .ai-block { grid-template-columns: 1fr; }
    .equipment-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
    .header .container { flex-direction: column; gap: 8px; }
    .nav a { font-size: 12px; }
    .hero { padding: 120px 0 40px; min-height: auto; }
    .drone-animation { transform: scale(0.7); }
    .signup-form { padding: 20px; }
    .contacts-grid { grid-template-columns: 1fr; }
    .cards-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 480px) {
    .cards-grid { grid-template-columns: 1fr; }
    .hero-buttons .btn { width: 100%; text-align: center; }
}