:root {
    --accent: #FF6633;
    --accent-hover: #E5552A;
    --dark: #161B22;
    --dark-light: #1C2330;
    --gray: #3A4250;
    --gray-light: #5A6575;
    --light: #F5F6F7;
    --white: #FFFFFF;
    --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --max-width: 1440px;
    --header-height: 72px;
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: var(--header-height); }

body {
    font-family: var(--font);
    font-size: 16px;
    line-height: 1.6;
    color: var(--dark);
    background: var(--white);
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 40px;
}

/* ===== HEADER ===== */
.header {
    position: fixed;
    top: 0; left: 0; right: 0;
    height: var(--header-height);
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(0,0,0,0.06);
    z-index: 1000;
    transition: box-shadow 0.3s;
}
.header.scrolled { box-shadow: 0 2px 20px rgba(0,0,0,0.08); }
.header__inner {
    display: flex;
    align-items: center;
    height: 100%;
    gap: 40px;
}
.header__logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--dark);
    font-weight: 700;
    font-size: 20px;
    letter-spacing: 0.5px;
    flex-shrink: 0;
}
.logo-icon { color: var(--accent); font-size: 24px; }
.header__nav { display: flex; gap: 32px; margin-left: auto; }
.nav__link {
    text-decoration: none;
    color: var(--gray);
    font-size: 14px;
    font-weight: 500;
    transition: color 0.2s;
    white-space: nowrap;
}
.nav__link:hover { color: var(--accent); }
.header__cta { flex-shrink: 0; }
.header__burger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}
.header__burger span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--dark);
    transition: 0.3s;
}

/* ===== BUTTONS ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 28px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    border: 2px solid transparent;
    cursor: pointer;
    transition: all 0.2s;
    white-space: nowrap;
}
.btn--primary {
    background: var(--accent);
    color: var(--white);
    border-color: var(--accent);
}
.btn--primary:hover { background: var(--accent-hover); border-color: var(--accent-hover); }
.btn--outline {
    background: transparent;
    color: var(--dark);
    border-color: var(--gray-light);
}
.btn--outline:hover { border-color: var(--accent); color: var(--accent); }
.btn--lg { padding: 16px 36px; font-size: 16px; }
.btn--block { width: 100%; }

/* ===== HERO ===== */
.hero {
    padding: 160px 0 100px;
    background: linear-gradient(135deg, var(--white) 0%, var(--light) 100%);
    overflow: hidden;
}
.hero__inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}
.hero__title {
    font-size: 56px;
    font-weight: 800;
    line-height: 1.1;
    color: var(--dark);
    margin-bottom: 24px;
}
.hero__subtitle {
    font-size: 18px;
    color: var(--gray);
    line-height: 1.7;
    margin-bottom: 40px;
    max-width: 480px;
}
.hero__actions { display: flex; gap: 16px; }
.hero__visual { display: flex; justify-content: center; }
.hero__map {
    width: 400px;
    height: 400px;
    border-radius: 50%;
    background: linear-gradient(135deg, #E8F4FD 0%, #D0E8F7 100%);
    position: relative;
    overflow: hidden;
}
.map-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(58,66,80,0.08) 1px, transparent 1px),
        linear-gradient(90deg, rgba(58,66,80,0.08) 1px, transparent 1px);
    background-size: 40px 40px;
}
.map-pin {
    position: absolute;
    width: 16px;
    height: 16px;
    background: var(--accent);
    border-radius: 50%;
    box-shadow: 0 0 0 4px rgba(255,102,51,0.2);
}
.map-pin--1 { top: 30%; left: 40%; }
.map-pin--2 { top: 50%; left: 60%; animation-delay: 0.5s; }
.map-pin--3 { top: 65%; left: 35%; animation-delay: 1s; }
.map-pulse {
    position: absolute;
    top: 50%; left: 50%;
    width: 200px; height: 200px;
    margin: -100px 0 0 -100px;
    border-radius: 50%;
    border: 2px solid var(--accent);
    opacity: 0;
    animation: pulse 3s infinite;
}
@keyframes pulse {
    0% { transform: scale(0.5); opacity: 0.6; }
    100% { transform: scale(2); opacity: 0; }
}

/* ===== SECTIONS ===== */
.section-title {
    font-size: 40px;
    font-weight: 800;
    text-align: center;
    margin-bottom: 16px;
    color: var(--dark);
}
.section-title--left { text-align: left; }
.section-subtitle {
    font-size: 18px;
    color: var(--gray);
    text-align: center;
    max-width: 600px;
    margin: 0 auto 60px;
}

/* ===== SERVICES ===== */
.services { padding: 100px 0; background: var(--white); }
.services__grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 24px;
}
.service-card {
    padding: 36px 28px;
    border-radius: 16px;
    border: 1px solid rgba(0,0,0,0.06);
    transition: all 0.3s;
    background: var(--white);
}
.service-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0,0,0,0.08);
    border-color: var(--accent);
}
.service-card__icon { margin-bottom: 20px; }
.service-card__title {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--dark);
}
.service-card__text {
    font-size: 14px;
    color: var(--gray);
    line-height: 1.7;
}

/* ===== HOW ===== */
.how { padding: 100px 0; background: var(--light); }
.how__steps {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 20px;
}
.step {
    text-align: center;
    padding: 32px 16px;
    position: relative;
}
.step__number {
    font-size: 48px;
    font-weight: 800;
    color: var(--accent);
    opacity: 0.15;
    margin-bottom: 12px;
}
.step__title {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--dark);
}
.step__text {
    font-size: 13px;
    color: var(--gray);
    line-height: 1.6;
}

/* ===== PRICES ===== */
.prices { padding: 100px 0; background: var(--white); }
.prices__grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    align-items: start;
}
.price-card {
    padding: 40px 32px;
    border-radius: 16px;
    border: 1px solid rgba(0,0,0,0.06);
    background: var(--white);
    position: relative;
    transition: all 0.3s;
}
.price-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0,0,0,0.08);
}
.price-card--popular {
    border: 2px solid var(--accent);
    box-shadow: 0 8px 32px rgba(255,102,51,0.12);
}
.price-card__badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--accent);
    color: var(--white);
    padding: 4px 16px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    white-space: nowrap;
}
.price-card__name {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--dark);
}
.price-card__price {
    font-size: 32px;
    font-weight: 800;
    color: var(--accent);
    margin-bottom: 8px;
}
.price-card__desc {
    font-size: 14px;
    color: var(--gray);
    margin-bottom: 24px;
    padding-bottom: 24px;
    border-bottom: 1px solid rgba(0,0,0,0.06);
}
.price-card__list {
    list-style: none;
    margin-bottom: 32px;
}
.price-card__list li {
    padding: 8px 0;
    font-size: 14px;
    color: var(--gray);
    padding-left: 24px;
    position: relative;
}
.price-card__list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--accent);
    font-weight: 700;
}

/* ===== ABOUT ===== */
.about { padding: 100px 0; background: var(--light); }
.about__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}
.about__text {
    font-size: 16px;
    color: var(--gray);
    line-height: 1.8;
    margin-bottom: 16px;
}
.about__stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
}
.stat { text-align: center; }
.stat__number {
    font-size: 56px;
    font-weight: 800;
    color: var(--accent);
    line-height: 1;
    margin-bottom: 8px;
}
.stat__label {
    font-size: 14px;
    color: var(--gray);
    font-weight: 500;
}

/* ===== PROJECTS ===== */
.projects { padding: 100px 0; background: var(--white); }
.projects__grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}
.project-card {
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid rgba(0,0,0,0.06);
    transition: all 0.3s;
    background: var(--white);
}
.project-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0,0,0,0.08);
}
.project-card__image {
    height: 200px;
    position: relative;
    display: flex;
    align-items: flex-end;
    padding: 16px;
}
.project-card__overlay {
    background: rgba(255,102,51,0.9);
    color: var(--white);
    padding: 4px 12px;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 600;
}
.project-card__title {
    font-size: 18px;
    font-weight: 700;
    padding: 20px 24px 8px;
    color: var(--dark);
}
.project-card__text {
    font-size: 14px;
    color: var(--gray);
    padding: 0 24px 24px;
    line-height: 1.7;
}

/* ===== GEOKAIF PRO ===== */
.geokaifpro { padding: 100px 0; background: var(--dark); color: var(--white); }
.geokaifpro .section-title { color: var(--white); }
.geokaifpro__inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}
.geokaifpro__text {
    font-size: 16px;
    color: rgba(255,255,255,0.7);
    line-height: 1.8;
    margin-bottom: 32px;
}
.geokaifpro__features {
    list-style: none;
    margin-bottom: 40px;
}
.geokaifpro__features li {
    padding: 10px 0;
    padding-left: 28px;
    position: relative;
    color: rgba(255,255,255,0.8);
    font-size: 15px;
}
.geokaifpro__features li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--accent);
    font-weight: 700;
}
.app-mockup {
    background: var(--dark-light);
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid rgba(255,255,255,0.08);
}
.app-mockup__header {
    display: flex;
    gap: 6px;
    padding: 12px 16px;
    background: rgba(0,0,0,0.3);
}
.mockup-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: rgba(255,255,255,0.15);
}
.mockup-dot:nth-child(1) { background: #FF5F56; }
.mockup-dot:nth-child(2) { background: #FFBD2E; }
.mockup-dot:nth-child(3) { background: #27C93F; }
.app-mockup__content {
    display: flex;
    height: 300px;
}
.mockup-sidebar {
    width: 48px;
    background: rgba(0,0,0,0.2);
    flex-shrink: 0;
}
.mockup-main { flex: 1; display: flex; }
.mockup-map {
    flex: 1;
    background: linear-gradient(135deg, #1a3a2a 0%, #0a2a1a 100%);
    position: relative;
    overflow: hidden;
}
.mockup-map::after {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
    background-size: 20px 20px;
}
.mockup-panel {
    width: 120px;
    background: rgba(0,0,0,0.15);
    flex-shrink: 0;
}

/* ===== CONTACTS ===== */
.contacts { padding: 100px 0; background: var(--light); }
.contacts__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
}
.contact-form { display: flex; flex-direction: column; gap: 20px; }
.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 6px;
    color: var(--dark);
}
.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid rgba(0,0,0,0.12);
    border-radius: 8px;
    font-family: var(--font);
    font-size: 14px;
    background: var(--white);
    transition: border-color 0.2s;
    color: var(--dark);
}
.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(255,102,51,0.1);
}
.form-group textarea { resize: vertical; }
.contacts__info {
    display: flex;
    flex-direction: column;
    gap: 32px;
    padding-top: 12px;
}
.contact-info h4 {
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--gray-light);
    margin-bottom: 8px;
}
.contact-info a,
.contact-info p {
    font-size: 16px;
    color: var(--dark);
    text-decoration: none;
    font-weight: 500;
}
.contact-info a:hover { color: var(--accent); }

/* ===== FOOTER ===== */
.footer {
    background: var(--dark);
    color: rgba(255,255,255,0.7);
    padding: 60px 0 32px;
}
.footer__inner {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 60px;
}
.footer__tagline {
    margin-top: 12px;
    font-size: 14px;
    color: rgba(255,255,255,0.5);
}
.footer__brand .logo-text { color: var(--white); }
.footer__links {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
}
.footer__col h4 {
    color: var(--white);
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 16px;
}
.footer__col a {
    display: block;
    color: rgba(255,255,255,0.5);
    text-decoration: none;
    font-size: 14px;
    padding: 4px 0;
    transition: color 0.2s;
}
.footer__col a:hover { color: var(--accent); }
.footer__bottom {
    grid-column: 1 / -1;
    padding-top: 32px;
    border-top: 1px solid rgba(255,255,255,0.08);
    margin-top: 20px;
}
.footer__bottom p {
    font-size: 13px;
    color: rgba(255,255,255,0.35);
}

/* ===== ANIMATIONS ===== */
.fade-in {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s, transform 0.6s;
}
.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1200px) {
    .services__grid { grid-template-columns: repeat(3, 1fr); }
    .how__steps { grid-template-columns: repeat(4, 1fr); }
}
@media (max-width: 1024px) {
    .hero__inner { grid-template-columns: 1fr; text-align: center; }
    .hero__subtitle { margin-left: auto; margin-right: auto; }
    .hero__actions { justify-content: center; }
    .hero__visual { display: none; }
    .prices__grid { grid-template-columns: repeat(2, 1fr); }
    .about__grid { grid-template-columns: 1fr; }
    .projects__grid { grid-template-columns: repeat(2, 1fr); }
    .geokaifpro__inner { grid-template-columns: 1fr; }
    .geokaifpro__visual { order: -1; }
    .contacts__grid { grid-template-columns: 1fr; }
    .footer__inner { grid-template-columns: 1fr; gap: 40px; }
    .header__nav { display: none; }
    .header__burger { display: flex; }
    .header__nav.open {
        display: flex;
        flex-direction: column;
        position: fixed;
        top: var(--header-height);
        left: 0; right: 0;
        background: var(--white);
        padding: 24px;
        gap: 16px;
        border-bottom: 1px solid rgba(0,0,0,0.08);
        box-shadow: 0 8px 24px rgba(0,0,0,0.08);
    }
}
@media (max-width: 768px) {
    .container { padding: 0 20px; }
    .hero__title { font-size: 36px; }
    .section-title { font-size: 28px; }
    .services__grid { grid-template-columns: 1fr; }
    .how__steps { grid-template-columns: repeat(2, 1fr); }
    .prices__grid { grid-template-columns: 1fr; max-width: 400px; margin-left: auto; margin-right: auto; }
    .projects__grid { grid-template-columns: 1fr; }
    .about__stats { grid-template-columns: repeat(2, 1fr); }
}