/* ==========================================================================
   Hublix Landing Page — Styles
   ========================================================================== */

:root {
    --color-bg: #0a0a0f;
    --color-bg-alt: #111118;
    --color-bg-card: #16161f;
    --color-bg-card-hover: #1c1c28;
    --color-border: #2a2a3a;
    --color-border-light: #1e1e2e;
    --color-text: #e8e8ed;
    --color-text-secondary: #9898a8;
    --color-text-muted: #6a6a7a;
    --color-primary: #6366f1;
    --color-primary-hover: #818cf8;
    --color-primary-glow: rgba(99, 102, 241, 0.15);
    --color-accent: #22d3ee;
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --container-max: 1120px;
    --radius: 12px;
    --radius-sm: 8px;
    --radius-lg: 16px;
    --transition: 0.2s ease;
}

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

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-family);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-bg);
}

body.menu-open {
    overflow: hidden;
}

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

img {
    max-width: 100%;
    display: block;
}

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

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-family);
    font-weight: 500;
    border: none;
    cursor: pointer;
    transition: all var(--transition);
    text-decoration: none;
    border-radius: var(--radius-sm);
    white-space: nowrap;
}

.btn--sm {
    padding: 8px 20px;
    font-size: 14px;
}

.btn--lg {
    padding: 14px 32px;
    font-size: 16px;
    border-radius: var(--radius);
}

.btn--full {
    width: 100%;
    padding: 14px 32px;
    font-size: 16px;
}

.btn--primary {
    background: var(--color-primary);
    color: #fff;
    box-shadow: 0 0 20px var(--color-primary-glow);
}

.btn--primary:hover {
    background: var(--color-primary-hover);
    box-shadow: 0 0 30px var(--color-primary-glow);
    transform: translateY(-1px);
}

.btn--outline {
    background: transparent;
    color: var(--color-text);
    border: 1px solid var(--color-border);
}

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

.btn--ghost {
    background: transparent;
    color: var(--color-text-secondary);
    border: 1px solid var(--color-border);
}

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

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: rgba(10, 10, 15, 0.85);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border-light);
}

.header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

.header__logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.header__logo-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    background: var(--color-primary);
    color: #fff;
    font-weight: 700;
    font-size: 16px;
    border-radius: 8px;
}

.header__logo-text {
    font-weight: 600;
    font-size: 18px;
    color: var(--color-text);
}

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

.header__link {
    font-size: 14px;
    color: var(--color-text-secondary);
    transition: color var(--transition);
}

.header__link:hover {
    color: var(--color-text);
}

.header__burger {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 32px;
    height: 32px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.header__burger span {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--color-text);
    border-radius: 1px;
    transition: all var(--transition);
}

.header__burger.active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

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

.header__burger.active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* Mobile menu */
.mobile-menu {
    display: none;
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 99;
    background: var(--color-bg);
    padding: 32px 24px;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.mobile-menu.open {
    opacity: 1;
    visibility: visible;
}

.mobile-menu__nav {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.mobile-menu__link {
    font-size: 18px;
    color: var(--color-text-secondary);
    transition: color var(--transition);
}

.mobile-menu__link:hover {
    color: var(--color-text);
}

/* Hero */
.hero {
    padding: 160px 0 100px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -200px;
    left: 50%;
    transform: translateX(-50%);
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, var(--color-primary-glow) 0%, transparent 70%);
    pointer-events: none;
}

.hero__content {
    position: relative;
    max-width: 720px;
    margin: 0 auto;
}

.hero__badge {
    display: inline-block;
    padding: 6px 16px;
    background: var(--color-primary-glow);
    border: 1px solid rgba(99, 102, 241, 0.3);
    border-radius: 100px;
    font-size: 13px;
    font-weight: 500;
    color: var(--color-primary-hover);
    margin-bottom: 24px;
    letter-spacing: 0.02em;
}

.hero__title {
    font-size: 48px;
    font-weight: 700;
    line-height: 1.15;
    letter-spacing: -0.02em;
    margin-bottom: 20px;
    background: linear-gradient(135deg, var(--color-text) 0%, var(--color-text-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero__subtitle {
    font-size: 18px;
    line-height: 1.7;
    color: var(--color-text-secondary);
    margin-bottom: 36px;
}

.hero__actions {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    margin-bottom: 48px;
}

.hero__trust {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 24px;
}

.hero__trust-item {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    font-weight: 500;
    color: var(--color-text-muted);
    letter-spacing: 0.02em;
}

.hero__trust-item::before {
    content: '';
    display: block;
    width: 6px;
    height: 6px;
    background: var(--color-accent);
    border-radius: 50%;
}

/* Section headers */
.section-header {
    text-align: center;
    margin-bottom: 56px;
}

.section-title {
    font-size: 36px;
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 12px;
}

.section-subtitle {
    font-size: 17px;
    color: var(--color-text-secondary);
    max-width: 560px;
    margin: 0 auto;
}

/* Features */
.features {
    padding: 100px 0;
    background: var(--color-bg-alt);
}

.features__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

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

.feature-card:hover {
    background: var(--color-bg-card-hover);
    border-color: var(--color-border);
    transform: translateY(-2px);
}

.feature-card__icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background: var(--color-primary-glow);
    border-radius: var(--radius);
    color: var(--color-primary-hover);
    margin-bottom: 20px;
}

.feature-card__title {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 8px;
}

.feature-card__text {
    font-size: 14px;
    line-height: 1.7;
    color: var(--color-text-secondary);
}

/* How it works */
.how-it-works {
    padding: 100px 0;
}

.steps {
    display: flex;
    align-items: flex-start;
    gap: 0;
}

.step {
    flex: 1;
    text-align: center;
    padding: 0 24px;
}

.step__number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    background: var(--color-primary-glow);
    border: 1px solid rgba(99, 102, 241, 0.3);
    border-radius: 50%;
    font-size: 20px;
    font-weight: 700;
    color: var(--color-primary-hover);
    margin-bottom: 20px;
}

.step__title {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 8px;
}

.step__text {
    font-size: 14px;
    line-height: 1.7;
    color: var(--color-text-secondary);
}

.step__connector {
    width: 60px;
    height: 2px;
    background: var(--color-border);
    margin-top: 28px;
    flex-shrink: 0;
}

/* Use cases */
.use-cases {
    padding: 100px 0;
    background: var(--color-bg-alt);
}

.use-cases__grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.use-case-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-lg);
    padding: 32px;
    transition: all var(--transition);
}

.use-case-card:hover {
    border-color: var(--color-border);
}

.use-case-card__title {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 8px;
}

.use-case-card__text {
    font-size: 14px;
    line-height: 1.7;
    color: var(--color-text-secondary);
}

/* Security */
.security {
    padding: 100px 0;
}

.security__grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.security-item {
    display: flex;
    gap: 16px;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-lg);
    padding: 28px;
    transition: all var(--transition);
}

.security-item:hover {
    border-color: var(--color-border);
}

.security-item__icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: rgba(34, 211, 238, 0.1);
    border-radius: var(--radius-sm);
    color: var(--color-accent);
    flex-shrink: 0;
}

.security-item__title {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 4px;
}

.security-item__text {
    font-size: 14px;
    line-height: 1.6;
    color: var(--color-text-secondary);
}

/* Contacts */
.contacts {
    padding: 100px 0;
    background: var(--color-bg-alt);
}

.contacts__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.contact-card {
    text-align: center;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-lg);
    padding: 32px;
    transition: all var(--transition);
}

.contact-card:hover {
    border-color: var(--color-border);
}

.contact-card__icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background: var(--color-primary-glow);
    border-radius: 50%;
    color: var(--color-primary-hover);
    margin: 0 auto 16px;
}

.contact-card__label {
    font-size: 13px;
    font-weight: 500;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 4px;
}

.contact-card__value {
    font-size: 16px;
    font-weight: 500;
    color: var(--color-text);
    transition: color var(--transition);
}

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

/* Footer */
.footer {
    padding: 48px 0 32px;
    border-top: 1px solid var(--color-border-light);
}

.footer__inner {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 32px;
}

.footer__brand {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
}

.footer__legal {
    font-size: 13px;
    color: var(--color-text-muted);
    line-height: 1.6;
}

.footer__links {
    display: flex;
    flex-direction: column;
    gap: 8px;
    align-items: flex-end;
}

.footer__link {
    font-size: 14px;
    color: var(--color-text-secondary);
    transition: color var(--transition);
}

.footer__link:hover {
    color: var(--color-text);
}

.footer__bottom {
    padding-top: 24px;
    border-top: 1px solid var(--color-border-light);
}

.footer__copyright {
    font-size: 13px;
    color: var(--color-text-muted);
}

/* Cookie consent banner */
.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 200;
    background: var(--color-bg-card);
    border-top: 1px solid var(--color-border);
    padding: 16px 0;
    transform: translateY(100%);
    transition: transform 0.3s ease;
}

.cookie-banner.visible {
    transform: translateY(0);
}

.cookie-banner__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.cookie-banner__text {
    font-size: 13px;
    line-height: 1.5;
    color: var(--color-text-secondary);
    flex: 1;
}

.cookie-banner__text a {
    color: var(--color-primary-hover);
    text-decoration: underline;
}

.cookie-banner__actions {
    display: flex;
    gap: 8px;
    flex-shrink: 0;
}

/* Privacy page */
.privacy {
    padding: 120px 0 80px;
}

.privacy__title {
    font-size: 36px;
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 8px;
}

.privacy__updated {
    font-size: 14px;
    color: var(--color-text-muted);
    margin-bottom: 48px;
}

.privacy__content {
    max-width: 720px;
}

.privacy__section {
    margin-bottom: 36px;
}

.privacy__section h2 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 12px;
}

.privacy__section p {
    font-size: 15px;
    line-height: 1.7;
    color: var(--color-text-secondary);
    margin-bottom: 12px;
}

.privacy__section ul {
    list-style: none;
    padding: 0;
    margin-bottom: 12px;
}

.privacy__section li {
    position: relative;
    padding-left: 20px;
    font-size: 15px;
    line-height: 1.7;
    color: var(--color-text-secondary);
    margin-bottom: 4px;
}

.privacy__section li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 10px;
    width: 6px;
    height: 6px;
    background: var(--color-primary);
    border-radius: 50%;
}

.privacy__section a {
    color: var(--color-primary-hover);
    transition: color var(--transition);
}

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

/* ==========================================================================
   Responsive
   ========================================================================== */

@media (max-width: 768px) {
    .header__nav {
        display: none;
    }

    .header__burger {
        display: flex;
    }

    .mobile-menu {
        display: block;
    }

    .hero {
        padding: 120px 0 60px;
    }

    .hero__title {
        font-size: 32px;
    }

    .hero__subtitle {
        font-size: 16px;
    }

    .hero__actions {
        flex-direction: column;
    }

    .hero__actions .btn {
        width: 100%;
    }

    .hero__trust {
        flex-direction: column;
        gap: 12px;
    }

    .section-title {
        font-size: 28px;
    }

    .features, .how-it-works, .use-cases, .security, .contacts {
        padding: 64px 0;
    }

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

    .steps {
        flex-direction: column;
        align-items: center;
        gap: 32px;
    }

    .step__connector {
        width: 2px;
        height: 32px;
        margin-top: 0;
    }

    .use-cases__grid {
        grid-template-columns: 1fr;
    }

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

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

    .footer__inner {
        flex-direction: column;
        gap: 24px;
    }

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

    .cookie-banner__inner {
        flex-direction: column;
        text-align: center;
    }

    .cookie-banner__actions {
        width: 100%;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .hero__title {
        font-size: 28px;
    }

    .section-title {
        font-size: 24px;
    }

    .feature-card, .use-case-card, .security-item, .contact-card {
        padding: 24px;
    }
}