:root {
    --white: #ffffff;
    --gray-50: #f8fafc;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-400: #94a3b8;
    --gray-500: #64748b;
    --gray-700: #334155;
    --gray-900: #0f172a;
    --blue-50: #eff6ff;
    --blue-100: #dbeafe;
    --blue-500: #3b82f6;
    --blue-600: #2563eb;
    --blue-700: #1d4ed8;
    --blue-900: #1e3a8a;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background-color: var(--white);
    color: var(--gray-900);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Header */
header {
    background-color: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    border-bottom: 1px solid var(--gray-200);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 68px;
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 24px;
}

.logo-text {
    font-weight: 800;
    font-size: 20px;
    letter-spacing: -0.5px;
    color: var(--gray-900);
}

.logo-text .highlight {
    color: var(--blue-600);
}

.nav-links {
    display: flex;
    gap: 36px;
    list-style: none;
}

.nav-links a {
    color: var(--gray-500);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: color 0.15s;
}

.nav-links a:hover {
    color: var(--gray-900);
}

/* Hero */
.hero {
    padding: 180px 0 110px;
    text-align: center;
    background: linear-gradient(180deg, var(--blue-50) 0%, var(--white) 100%);
}

.hero-eyebrow {
    display: inline-block;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--blue-600);
    margin-bottom: 20px;
}

h1 {
    font-size: 62px;
    font-weight: 800;
    line-height: 1.05;
    margin-bottom: 24px;
    letter-spacing: -2.5px;
    color: var(--gray-900);
}

.gradient-text {
    background: linear-gradient(90deg, var(--blue-600), #60a5fa);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-tagline {
    font-size: 20px;
    color: var(--gray-500);
    max-width: 520px;
    margin: 0 auto 48px;
    line-height: 1.7;
    font-weight: 400;
}

.hero-cta {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
}

.btn-primary {
    background: var(--blue-600);
    color: var(--white);
    text-decoration: none;
    padding: 13px 26px;
    border-radius: 10px;
    font-weight: 600;
    font-size: 15px;
    transition: background 0.15s, transform 0.15s;
}

.btn-primary:hover {
    background: var(--blue-700);
    transform: translateY(-1px);
}

.btn-secondary {
    background: var(--white);
    color: var(--gray-700);
    text-decoration: none;
    padding: 13px 26px;
    border-radius: 10px;
    font-weight: 600;
    font-size: 15px;
    border: 1px solid var(--gray-200);
    transition: border-color 0.15s, background 0.15s, transform 0.15s;
}

.btn-secondary:hover {
    border-color: var(--gray-300);
    background: var(--gray-50);
    transform: translateY(-1px);
}

/* Apps Section */
.apps {
    padding: 120px 0;
    background-color: var(--gray-50);
}

.section-label {
    text-align: center;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 2.5px;
    text-transform: uppercase;
    color: var(--blue-600);
    margin-bottom: 12px;
}

.section-title {
    text-align: center;
    font-size: 36px;
    font-weight: 800;
    margin-bottom: 14px;
    letter-spacing: -1.5px;
    color: var(--gray-900);
}

.section-subtitle {
    text-align: center;
    font-size: 16px;
    color: var(--gray-500);
    max-width: 460px;
    margin: 0 auto 64px;
    line-height: 1.7;
}

.app-card {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: 20px;
    padding: 40px;
    display: flex;
    gap: 36px;
    align-items: flex-start;
    max-width: 760px;
    margin: 0 auto;
    transition: border-color 0.2s, box-shadow 0.2s, transform 0.2s;
    text-decoration: none;
    color: inherit;
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.04);
}

.app-card:hover {
    border-color: var(--blue-200, #bfdbfe);
    box-shadow: 0 8px 32px rgba(37, 99, 235, 0.08);
    transform: translateY(-3px);
}

.app-card-icon {
    width: 80px;
    height: 80px;
    border-radius: 18px;
    flex-shrink: 0;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
    background: var(--gray-100);
}

.app-card-body {
    flex: 1;
}

.app-card-name {
    font-size: 22px;
    font-weight: 700;
    letter-spacing: -0.5px;
    margin-bottom: 8px;
    color: var(--gray-900);
}

.app-card-desc {
    color: var(--gray-500);
    font-size: 15px;
    line-height: 1.7;
    margin-bottom: 18px;
}

.app-card-tags {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 20px;
}

.tag {
    background: var(--blue-50);
    color: var(--blue-700);
    font-size: 12px;
    font-weight: 600;
    padding: 4px 12px;
    border-radius: 20px;
    border: 1px solid var(--blue-100);
}

.app-card-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--blue-600);
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    transition: gap 0.2s;
}

.app-card-link:hover {
    gap: 10px;
}

/* About Section */
.about {
    padding: 120px 0;
    background: var(--white);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.about-text h2 {
    font-size: 36px;
    font-weight: 800;
    letter-spacing: -1.5px;
    margin-bottom: 20px;
    line-height: 1.1;
    color: var(--gray-900);
}

.about-text p {
    color: var(--gray-500);
    font-size: 16px;
    line-height: 1.8;
    margin-bottom: 14px;
}

.about-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.stat-card {
    background: var(--gray-50);
    border: 1px solid var(--gray-200);
    border-radius: 16px;
    padding: 28px;
}

.stat-number {
    font-size: 32px;
    font-weight: 800;
    letter-spacing: -1px;
    color: var(--blue-600);
    margin-bottom: 4px;
}

.stat-label {
    font-size: 13px;
    color: var(--gray-500);
    font-weight: 500;
}

/* Contact */
.contact {
    padding: 100px 0;
    background-color: var(--gray-50);
    text-align: center;
    border-top: 1px solid var(--gray-200);
}

.contact h2 {
    font-size: 36px;
    font-weight: 800;
    letter-spacing: -1.5px;
    margin-bottom: 12px;
    color: var(--gray-900);
}

.contact p {
    color: var(--gray-500);
    font-size: 16px;
    margin-bottom: 32px;
}

.contact-email {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: var(--blue-600);
    font-size: 18px;
    font-weight: 600;
    text-decoration: none;
    padding: 16px 32px;
    border: 1px solid var(--gray-200);
    border-radius: 12px;
    background: var(--white);
    transition: border-color 0.2s, box-shadow 0.2s;
}

.contact-email:hover {
    border-color: var(--blue-300, #93c5fd);
    box-shadow: 0 4px 16px rgba(37, 99, 235, 0.08);
}

/* Footer */
footer {
    padding: 44px 0;
    border-top: 1px solid var(--gray-200);
    background: var(--white);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--gray-400);
    font-size: 14px;
}

.footer-links {
    display: flex;
    gap: 28px;
}

.footer-links a {
    color: var(--gray-400);
    text-decoration: none;
    transition: color 0.15s;
}

.footer-links a:hover {
    color: var(--gray-900);
}

/* Legal page */
.legal-content {
    padding: 120px 0 80px;
    max-width: 780px;
    margin: 0 auto;
}

.legal-content h1 {
    font-size: 40px;
    font-weight: 800;
    letter-spacing: -1.5px;
    margin-bottom: 40px;
    color: var(--gray-900);
}

.lang-switch {
    display: flex;
    gap: 20px;
    margin-bottom: 48px;
    padding: 14px 20px;
    background: var(--gray-50);
    border-radius: 10px;
    border: 1px solid var(--gray-200);
}

.lang-link {
    color: var(--blue-600);
    text-decoration: none;
    font-weight: 600;
    font-size: 14px;
}

.lang-link:hover {
    text-decoration: underline;
}

.legal-section h2 {
    font-size: 26px;
    font-weight: 700;
    margin-bottom: 28px;
    color: var(--blue-600);
    letter-spacing: -0.5px;
}

.legal-section h3 {
    font-size: 20px;
    font-weight: 700;
    margin: 40px 0 14px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--gray-200);
    color: var(--gray-900);
    letter-spacing: -0.3px;
}

.legal-section h4 {
    font-size: 15px;
    font-weight: 600;
    margin: 22px 0 6px;
    color: var(--gray-700);
}

.legal-section p {
    color: var(--gray-500);
    font-size: 15px;
    line-height: 1.8;
    margin-bottom: 10px;
}

hr {
    border: 0;
    border-top: 1px solid var(--gray-200);
    margin: 60px 0;
}

/* Responsive */
@media (max-width: 900px) {
    .about-grid {
        grid-template-columns: 1fr;
        gap: 48px;
    }
}

/* Hamburger */
.nav-hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.nav-hamburger span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--gray-700);
    border-radius: 2px;
    transition: transform 0.2s, opacity 0.2s;
}

@media (max-width: 768px) {
    h1 {
        font-size: 40px;
        letter-spacing: -1.5px;
    }

    .app-card {
        flex-direction: column;
        gap: 20px;
        padding: 28px;
    }

    .footer-content {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }

    .nav-links {
        display: none;
        position: absolute;
        top: 68px;
        left: 0;
        right: 0;
        background: var(--white);
        border-bottom: 1px solid var(--gray-200);
        flex-direction: column;
        padding: 16px 24px;
        gap: 0;
    }

    .nav-links.open {
        display: flex;
    }

    .nav-links li {
        border-bottom: 1px solid var(--gray-100);
    }

    .nav-links li:last-child {
        border-bottom: none;
    }

    .nav-links a {
        display: block;
        padding: 14px 0;
        font-size: 15px;
        color: var(--gray-700);
    }

    .nav-hamburger {
        display: flex;
    }
}

@media (max-width: 480px) {
    h1 {
        font-size: 32px;
    }

    .about-stats {
        grid-template-columns: 1fr;
    }
}