:root {
    --primary: #1f5cff;
    --primary-dark: #1136a8;
    --accent: #ff7a18;
    --accent-dark: #d15f0f;
    --bg: #0b1021;
    --bg-alt: #111832;
    --text: #f5f7ff;
    --muted: #b0b6d6;
    --card-bg: rgba(17, 24, 50, 0.65);
    --border: rgba(255, 255, 255, 0.08);
    --shadow: 0 20px 45px rgba(15, 32, 80, 0.35);
    --radius-xl: 32px;
    --radius-lg: 28px;
    --radius-md: 18px;
    --radius-sm: 12px;
    --transition: 0.3s ease;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: 'Montserrat', sans-serif;
    background: linear-gradient(160deg, #070b19 0%, #0f1834 55%, #11193a 100%);
    color: var(--text);
    line-height: 1.6;
    overflow-x: hidden;
}

a {
    color: inherit;
    text-decoration: none;
}

a:hover,
a:focus {
    color: var(--accent);
}

[data-animate] {
    opacity: 0;
    transform: translateY(32px);
    transition: opacity 0.6s ease, transform 0.6s ease;
    transition-delay: var(--animate-delay, 0ms);
}

[data-animate].is-visible {
    opacity: 1;
    transform: translateY(0);
}

header.hero {
    padding: 40px clamp(24px, 8vw, 120px) 120px;
    position: relative;
    overflow: hidden;
}

header.hero::after {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at top right, rgba(31, 92, 255, 0.35), transparent 55%),
                radial-gradient(circle at bottom left, rgba(255, 122, 24, 0.2), transparent 45%);
    z-index: -1;
}

.nav {
    display: grid;
    grid-template-columns: auto 1fr;
    align-items: center;
    gap: 32px;
    margin-bottom: 72px;
}

.logo {
    font-size: 1.6rem;
    font-weight: 700;
    letter-spacing: 0.12em;
}

.logo span {
    color: var(--accent);
}

.nav__toggle {
    display: none;
    width: 48px;
    height: 48px;
    border-radius: 14px;
    border: 1px solid rgba(255, 255, 255, 0.18);
    background: rgba(10, 17, 37, 0.55);
    backdrop-filter: blur(16px);
    position: relative;
    cursor: pointer;
    transition: background var(--transition), border var(--transition);
}

.nav__toggle span {
    position: absolute;
    left: 12px;
    right: 12px;
    height: 2px;
    background: var(--text);
    border-radius: 2px;
    transition: transform 0.3s ease, opacity 0.3s ease;
}

.nav__toggle span:nth-child(1) { top: 15px; }
.nav__toggle span:nth-child(2) { top: 23px; }
.nav__toggle span:nth-child(3) { top: 31px; }

.nav__toggle.nav__toggle--active span:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
}

.nav__toggle.nav__toggle--active span:nth-child(2) {
    opacity: 0;
}

.nav__toggle.nav__toggle--active span:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
}

.nav__group {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 32px;
}

.nav__links {
    display: flex;
    gap: 32px;
    font-weight: 500;
}

.nav__links a {
    padding-bottom: 4px;
    border-bottom: 2px solid transparent;
    transition: border-color var(--transition), color var(--transition);
}

.nav__links a:hover {
    border-color: var(--accent);
}

.nav__cta--desktop {
    border: 1px solid rgba(255, 255, 255, 0.3);
    padding: 12px 22px;
    border-radius: 999px;
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 0.1em;
    transition: background var(--transition), border var(--transition);
}

.nav__cta--desktop:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--accent);
}

.nav__cta--mobile {
    display: none;
}

.hero__content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 48px;
}

.hero__text h1 {
    font-size: clamp(2.4rem, 4vw, 3.6rem);
    line-height: 1.1;
    margin-bottom: 24px;
}

.hero__text p {
    color: var(--muted);
    max-width: 520px;
    margin-bottom: 32px;
}

.hero__actions {
    display: flex;
    flex-wrap: wrap;
    gap: 18px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 26px;
    border-radius: 999px;
    font-weight: 600;
    letter-spacing: 0.02em;
    transition: transform var(--transition), box-shadow var(--transition), background var(--transition), color var(--transition);
}

.btn:hover {
    transform: translateY(-2px);
}

.btn--primary {
    background: linear-gradient(120deg, var(--primary), #4771ff);
    color: #ffffff;
    box-shadow: 0 12px 22px rgba(31, 92, 255, 0.35);
}

.btn--primary:hover {
    box-shadow: 0 18px 30px rgba(31, 92, 255, 0.4);
}

.btn--secondary {
    background: transparent;
    color: var(--text);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

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

.btn--ghost {
    background: transparent;
    color: var(--text);
    border: 1px solid rgba(255, 255, 255, 0.15);
}

.hero__illustration {
    display: grid;
    gap: 24px;
    justify-items: start;
}

.card {
    padding: 28px;
    border-radius: var(--radius-lg);
    background: var(--card-bg);
    backdrop-filter: blur(16px);
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
    transition: transform var(--transition), box-shadow var(--transition);
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: 0 24px 50px rgba(15, 32, 80, 0.4);
}

.highlight-card {
    border-left: 3px solid var(--accent);
}

.stat-card h3 {
    font-size: 3.2rem;
    margin: 0 0 12px;
}

main {
    padding: 80px clamp(24px, 8vw, 120px);
}

.section {
    margin-bottom: 120px;
}

.section__header {
    max-width: 760px;
    margin-bottom: 48px;
}

.section__header h2 {
    font-size: clamp(2rem, 3vw, 2.8rem);
    line-height: 1.2;
}

.kicker {
    text-transform: uppercase;
    letter-spacing: 0.18em;
    font-size: 0.78rem;
    color: var(--accent);
    display: inline-block;
    margin-bottom: 18px;
}

.services__grid,
.plans__grid,
.testimonials__grid,
.portfolio__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 28px;
}

.service-card,
.plan-card,
.testimonial,
.portfolio__card {
    padding: 32px;
    background: var(--bg-alt);
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
}

.service-card ul,
.plan-card ul {
    margin: 16px 0 0;
    padding-left: 18px;
    color: var(--muted);
}

.service-card li,
.plan-card li {
    margin-bottom: 10px;
}

.plan-card {
    position: relative;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.plan-card .price {
    font-size: 1.5rem;
    font-weight: 700;
}

.plan-card .btn {
    margin-top: auto;
}

.plan-card--highlight {
    background: linear-gradient(160deg, rgba(31, 92, 255, 0.9), rgba(17, 54, 168, 0.9));
    border: none;
}

.plan-card--highlight .price,
.plan-card--highlight h3,
.plan-card--highlight li {
    color: #ffffff;
}

.plan-card--highlight .btn--primary {
    background: #ffffff;
    color: var(--primary-dark);
    box-shadow: none;
}

.badge {
    position: absolute;
    top: -14px;
    right: 24px;
    background: var(--accent);
    color: #10162f;
    padding: 6px 14px;
    border-radius: 999px;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.security {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 40px;
    align-items: center;
}

.security__content > p {
    color: var(--muted);
    margin-bottom: 28px;
}

.security__tags {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.security__tags span {
    background: rgba(31, 92, 255, 0.18);
    border: 1px solid rgba(31, 92, 255, 0.35);
    padding: 8px 16px;
    border-radius: 999px;
    font-size: 0.85rem;
}

.security__visual {
    display: grid;
    gap: 20px;
}

.security__card {
    background: rgba(10, 17, 37, 0.85);
    border-radius: var(--radius-md);
    padding: 28px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    box-shadow: var(--shadow);
}

.process__steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 24px;
}

.step {
    background: rgba(8, 14, 30, 0.85);
    padding: 32px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
    transition: transform var(--transition), border-color var(--transition);
}

.step:hover {
    transform: translateY(-6px);
    border-color: rgba(255, 122, 24, 0.4);
}

.portfolio__card {
    position: relative;
    padding: 0;
    overflow: hidden;
    border-radius: var(--radius-lg);
    background: rgba(10, 18, 38, 0.9);
}

.portfolio__thumb {
    height: 180px;
    background-size: cover;
    background-position: center;
}

.portfolio__thumb--quercy {
    background-image: linear-gradient(120deg, rgba(31,92,255,0.65), rgba(255,122,24,0.4)), url('https://images.unsplash.com/photo-1528825871115-3581a5387919?auto=format&fit=crop&w=800&q=80');
}

.portfolio__thumb--astrolabe {
    background-image: linear-gradient(120deg, rgba(31,92,255,0.65), rgba(15,24,55,0.7)), url('https://images.unsplash.com/photo-1523475472560-d2df97ec485c?auto=format&fit=crop&w=800&q=80');
}

.portfolio__thumb--nova {
    background-image: linear-gradient(120deg, rgba(31,92,255,0.55), rgba(255,122,24,0.45)), url('https://images.unsplash.com/photo-1520607162513-77705c0f0d4a?auto=format&fit=crop&w=800&q=80');
}

.portfolio__content {
    padding: 28px 32px 36px;
    display: grid;
    gap: 16px;
}

.portfolio__tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    padding: 0;
    margin: 0;
    list-style: none;
}

.portfolio__tags li {
    padding: 8px 14px;
    background: rgba(31, 92, 255, 0.16);
    border-radius: 999px;
    font-size: 0.85rem;
    color: var(--muted);
}

.testimonial blockquote {
    font-style: italic;
    margin: 0 0 18px;
}

.faq__list {
    display: grid;
    gap: 18px;
    max-width: 760px;
}

.faq__item {
    background: rgba(8, 14, 30, 0.85);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.faq__question {
    width: 100%;
    background: transparent;
    border: none;
    color: var(--text);
    font: inherit;
    text-align: left;
    padding: 22px 26px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
}

.faq__question:hover {
    color: var(--accent);
}

.faq__icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    border: 1px solid rgba(255, 255, 255, 0.25);
    position: relative;
    transition: transform var(--transition), border var(--transition);
}

.faq__icon::before,
.faq__icon::after {
    content: '';
    position: absolute;
    background: var(--text);
    border-radius: 1px;
}

.faq__icon::before {
    width: 12px;
    height: 2px;
}

.faq__icon::after {
    width: 2px;
    height: 12px;
}

.faq__question[aria-expanded="true"] .faq__icon {
    transform: rotate(45deg);
    border-color: var(--accent);
}

.faq__question[aria-expanded="true"] .faq__icon::after {
    opacity: 0;
}

.faq__answer {
    padding: 0 26px 22px;
    color: var(--muted);
}

.footer {
    background: #050812;
    padding: 80px clamp(24px, 8vw, 120px) 40px;
}

.footer__content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 40px;
    margin-bottom: 48px;
}

.footer__cta h2 {
    font-size: clamp(1.8rem, 3vw, 2.6rem);
    margin-bottom: 16px;
}

.contact-form input,
.contact-form textarea {
    padding: 14px 18px;
    border-radius: var(--radius-sm);
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(255, 255, 255, 0.04);
    color: var(--text);
    font-family: inherit;
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: 2px solid rgba(31, 92, 255, 0.4);
}

.contact-form {
    display: grid;
    gap: 24px;
}

.contact-form--steps {
    position: relative;
    padding: 28px;
    background: rgba(8, 14, 30, 0.72);
    border-radius: var(--radius-md);
    border: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: var(--shadow);
}

.hp-field {
    position: absolute;
    left: -9999px;
    opacity: 0;
    pointer-events: none;
}

.form-progress ol {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 12px;
    margin: 0;
    padding: 0;
}

.form-progress li {
    padding: 10px 14px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    font-size: 0.75rem;
    text-align: center;
    text-transform: uppercase;
    letter-spacing: 0.14em;
    color: var(--muted);
    transition: background var(--transition), border var(--transition), color var(--transition);
}

.form-progress li.is-active {
    background: rgba(31, 92, 255, 0.18);
    border-color: rgba(31, 92, 255, 0.45);
    color: #ffffff;
}

.form-steps {
    display: grid;
    gap: 28px;
}

.form-step {
    display: grid;
    gap: 20px;
}

body.js-enabled .form-step {
    display: none;
}

body.js-enabled .form-step.is-active {
    display: grid;
}

.form-field {
    display: grid;
    gap: 8px;
}

.field-hint {
    font-size: 0.85rem;
    color: var(--muted);
}

.form-checkboxes {
    display: grid;
    gap: 12px;
}

.checkbox {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 16px;
    border-radius: var(--radius-sm);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    cursor: pointer;
    transition: border var(--transition), background var(--transition), transform var(--transition);
}

.checkbox:hover,
.checkbox:focus-within {
    border-color: rgba(255, 122, 24, 0.6);
    background: rgba(255, 122, 24, 0.1);
    transform: translateY(-2px);
}

.checkbox input {
    width: 18px;
    height: 18px;
    accent-color: var(--primary);
}

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

body.js-enabled [data-form-prev] {
    display: none;
}

body.js-enabled .form-has-prev [data-form-prev] {
    display: inline-flex;
}

body.js-enabled [data-form-submit] {
    display: none;
}

body.js-enabled .form-at-end [data-form-submit] {
    display: inline-flex;
}

.form-feedback {
    min-height: 24px;
    font-size: 0.9rem;
    color: var(--muted);
}

.form-feedback--success {
    color: #4fe3b4;
}

.form-feedback--error {
    color: #ffab8b;
}

.form-review {
    display: grid;
    gap: 10px;
    padding: 16px 18px;
    border-radius: var(--radius-sm);
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.review-label {
    display: block;
    font-size: 0.72rem;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--muted);
}

.review-value {
    font-weight: 600;
}

.footer__bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding-top: 24px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    font-size: 0.9rem;
    color: var(--muted);
}

.footer__links {
    display: flex;
    gap: 18px;
}

@media (max-width: 1200px) {
    .nav {
        grid-template-columns: auto auto;
    }
}

@media (max-width: 960px) {
    .nav {
        position: relative;
        grid-template-columns: auto 1fr;
        align-items: center;
    }

    .nav__toggle {
        display: inline-flex;
        justify-self: end;
    }

    .nav__group {
        position: absolute;
        top: 72px;
        right: 0;
        left: 0;
        flex-direction: column;
        align-items: stretch;
        background: rgba(8, 14, 30, 0.95);
        backdrop-filter: blur(12px);
        padding: 24px;
        border-radius: var(--radius-md);
        border: 1px solid rgba(255, 255, 255, 0.08);
        box-shadow: var(--shadow);
        opacity: 0;
        pointer-events: none;
        transform: translateY(-12px);
        transition: opacity 0.3s ease, transform 0.3s ease;
    }

    .nav__group.is-open {
        opacity: 1;
        pointer-events: auto;
        transform: translateY(0);
    }

    .nav__links {
        flex-direction: column;
        gap: 18px;
    }

    .nav__links a {
        padding: 10px 0;
        border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }

    .nav__links a:last-child {
        border-bottom: none;
    }

    .nav__cta--desktop {
        display: none;
    }

    .nav__cta--mobile {
        display: inline-flex;
        margin-top: 12px;
        padding: 12px 18px;
        border-radius: 999px;
        border: 1px solid rgba(255, 255, 255, 0.25);
        text-transform: uppercase;
        letter-spacing: 0.1em;
        justify-content: center;
    }

    header.hero {
        padding: 32px 18px 80px;
    }

    main {
        padding: 64px 18px;
    }

    .footer {
        padding: 64px 18px 32px;
    }

    .footer__links {
        flex-direction: column;
        align-items: flex-start;
    }
}

@media (max-width: 640px) {
    .hero__actions {
        flex-direction: column;
        align-items: stretch;
    }

    .plans__grid,
    .services__grid,
    .portfolio__grid {
        grid-template-columns: 1fr;
    }

    .portfolio__thumb {
        height: 160px;
    }

    .faq__list {
        gap: 14px;
    }

    .contact-form--steps {
        padding: 24px 18px;
    }

    .form-progress ol {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .form-navigation {
        flex-direction: column;
        align-items: stretch;
        gap: 12px;
    }

    .form-navigation .form-btn {
        width: 100%;
        justify-content: center;
    }
}

.checkbox span {
    flex: 1;
    font-weight: 500;
}