:root {
    --color-black: #151515;
    --color-dark: #1a1a1a;
    --color-gray-dark: #3d3d3d;
    --color-gray: #6b6b6b;
    --color-gray-light: #a0a0a0;
    --color-beige: #f5f4f0;
    --color-beige-dark: #e8e6e0;
    --color-white: #ffffff;
    --font-main: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
}

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

html {
    scroll-behavior: smooth;
}

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

/* Utility */
.container {
    max-width: 1140px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Header */
header {
    padding: 20px 0;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(12px);
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    text-decoration: none;
}

.logo svg {
    height: 32px;
    width: auto;
}

.header-cta {
    font-size: 14px;
    font-weight: 500;
    color: var(--color-black);
    background: transparent;
    padding: 10px 20px;
    border: 1px solid var(--color-black);
    border-radius: 100px;
    text-decoration: none;
    transition: all 0.2s ease;
}

.header-cta:hover {
    background: var(--color-black);
    color: var(--color-white);
}

/* Hero */
.hero {
    padding: 160px 0 100px;
    background: var(--color-white);
}

.hero-grid {
    display: flex;
    justify-content: center;
    text-align: center;
}

.hero-content {
    max-width: 680px;
}

.hero h1 {
    font-size: clamp(32px, 4.5vw, 48px);
    font-weight: 600;
    line-height: 1.15;
    color: var(--color-black);
    margin-bottom: 24px;
    letter-spacing: -0.5px;
}

.hero-lead {
    font-size: 17px;
    color: var(--color-gray);
    max-width: 560px;
    margin: 0 auto 36px;
    line-height: 1.7;
}

.hero-cta {
    display: inline-block;
    font-size: 15px;
    font-weight: 500;
    color: var(--color-white);
    background: var(--color-black);
    padding: 16px 32px;
    border-radius: 100px;
    text-decoration: none;
    transition: all 0.2s ease;
}

.hero-cta:hover {
    background: var(--color-gray-dark);
    transform: translateY(-1px);
}

/* Section base */
section {
    padding: 100px 0;
}

/* Problem section */
.problem {
    background: var(--color-beige);
}

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

@media (max-width: 800px) {
    .problem-grid {
        grid-template-columns: 1fr;
        gap: 48px;
    }
}

.section-label {
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--color-gray);
    margin-bottom: 16px;
}

.problem-text h2 {
    font-size: 28px;
    font-weight: 600;
    color: var(--color-black);
    margin-bottom: 20px;
    letter-spacing: -0.3px;
}

.problem-text p {
    color: var(--color-gray);
    margin-bottom: 16px;
    line-height: 1.7;
}

.problem-list {
    list-style: none;
    margin-top: 28px;
}

.problem-list li {
    position: relative;
    padding-left: 20px;
    margin-bottom: 12px;
    color: var(--color-gray-dark);
    font-size: 15px;
}

.problem-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 9px;
    width: 6px;
    height: 6px;
    background: var(--color-black);
    border-radius: 50%;
}

.problem-visual {
    background: var(--color-white);
    border-radius: var(--radius-md);
    padding: 36px;
}

.problem-visual h3 {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--color-black);
}

.problem-visual p {
    font-size: 15px;
    line-height: 1.7;
    color: var(--color-gray);
}

.problem-visual p + p {
    margin-top: 16px;
}

/* Solution section */
.solution {
    background: var(--color-white);
}

.solution-header {
    max-width: 560px;
    margin-bottom: 64px;
}

.solution-header h2 {
    font-size: 32px;
    font-weight: 600;
    margin-bottom: 16px;
    letter-spacing: -0.3px;
}

.solution-header p {
    font-size: 17px;
    color: var(--color-gray);
    line-height: 1.7;
}

.solution-features {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

@media (max-width: 800px) {
    .solution-features {
        grid-template-columns: 1fr;
        gap: 16px;
    }
}

.feature-card {
    background: var(--color-beige);
    border-radius: var(--radius-md);
    padding: 32px;
}

.feature-icon {
    width: 40px;
    height: 40px;
    margin-bottom: 20px;
}

.feature-icon svg {
    width: 40px;
    height: 40px;
    color: var(--color-black);
}

.feature-card h3 {
    font-size: 17px;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--color-black);
}

.feature-card p {
    font-size: 15px;
    color: var(--color-gray);
    line-height: 1.6;
}

/* Use cases */
.usecases {
    background: var(--color-beige);
}

.usecases-header {
    margin-bottom: 48px;
}

.usecases-header h2 {
    font-size: 28px;
    font-weight: 600;
    color: var(--color-black);
    margin-bottom: 12px;
    letter-spacing: -0.3px;
}

.usecases-header p {
    font-size: 17px;
    color: var(--color-gray);
    max-width: 480px;
}

.usecase-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

@media (max-width: 700px) {
    .usecase-list {
        grid-template-columns: 1fr;
    }
}

.usecase-item {
    background: var(--color-white);
    border-radius: var(--radius-md);
    padding: 28px;
    display: flex;
    align-items: flex-start;
    gap: 16px;
}

.usecase-icon {
    flex-shrink: 0;
    width: 36px;
    height: 36px;
}

.usecase-icon svg {
    width: 36px;
    height: 36px;
    color: var(--color-black);
}

.usecase-item h3 {
    font-size: 16px;
    font-weight: 600;
    color: var(--color-black);
    margin-bottom: 6px;
}

.usecase-item p {
    font-size: 14px;
    color: var(--color-gray);
    line-height: 1.6;
}

/* Value section */
.value {
    background: var(--color-white);
}

.value-header {
    margin-bottom: 56px;
}

.value-header h2 {
    font-size: 28px;
    font-weight: 600;
    color: var(--color-black);
    letter-spacing: -0.3px;
}

.value-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

@media (max-width: 800px) {
    .value-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }
}

.value-card {
    padding: 32px;
    background: var(--color-beige);
    border-radius: var(--radius-md);
}

.value-role {
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--color-gray);
    margin-bottom: 12px;
}

.value-card h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--color-black);
    margin-bottom: 8px;
}

.value-card p {
    font-size: 15px;
    color: var(--color-gray);
    line-height: 1.6;
}

/* CTA section */
.cta {
    background: var(--color-black);
    color: var(--color-white);
    padding: 100px 0;
}

.cta-inner {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 48px;
    align-items: center;
}

@media (max-width: 700px) {
    .cta-inner {
        grid-template-columns: 1fr;
        text-align: center;
    }
}

.cta h2 {
    font-size: 28px;
    font-weight: 600;
    margin-bottom: 12px;
    letter-spacing: -0.3px;
}

.cta p {
    font-size: 16px;
    color: var(--color-gray-light);
    max-width: 480px;
    line-height: 1.7;
}

@media (max-width: 700px) {
    .cta p {
        margin: 0 auto;
    }
}

.cta-form {
    display: flex;
    flex-direction: column;
    gap: 12px;
    min-width: 320px;
}

@media (max-width: 700px) {
    .cta-form {
        min-width: auto;
        max-width: 360px;
        margin: 0 auto;
    }
}

.cta-input {
    font-family: var(--font-main);
    font-size: 15px;
    padding: 16px 20px;
    border: 1px solid var(--color-gray-dark);
    border-radius: var(--radius-sm);
    background: transparent;
    color: var(--color-white);
    outline: none;
    transition: border-color 0.2s ease;
}

.cta-input::placeholder {
    color: var(--color-gray);
}

.cta-input:focus {
    border-color: var(--color-gray-light);
}

.cta-button {
    display: inline-block;
    font-family: var(--font-main);
    font-size: 15px;
    font-weight: 500;
    color: var(--color-black);
    background: var(--color-white);
    padding: 16px 32px;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    text-decoration: none;
    transition: all 0.2s ease;
}

.cta-button:hover {
    background: var(--color-beige);
}

/* Footer */
footer {
    background: var(--color-black);
    color: var(--color-gray-light);
    padding: 64px 0 48px;
}

.footer-brand {
    margin-bottom: 48px;
}

.footer-brand svg {
    height: 32px;
    width: auto;
}

.footer-grid {
    display: grid;
    grid-template-columns: 5fr 2fr 2fr 2fr;
    gap: 24px;
}

@media (max-width: 900px) {
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 40px;
    }
}

@media (max-width: 500px) {
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
}

.footer-col {
    display: flex;
    flex-direction: column;
}

.footer-col h4 {
    font-size: 15px;
    font-weight: 500;
    color: var(--color-white);
    margin-bottom: 24px;
}

.footer-col ul {
    list-style: none;
}

.footer-col li {
    margin-bottom: 10px;
}

.footer-col a {
    font-size: 14px;
    color: var(--color-gray-light);
    text-decoration: underline;
    transition: color 0.2s ease;
}

.footer-col a:hover {
    color: var(--color-white);
}

.footer-col span {
    font-size: 14px;
    color: var(--color-gray-light);
}

.footer-copy {
    margin-top: auto;
    padding-top: 48px;
    font-size: 14px;
    color: var(--color-gray-light);
}

.footer-address {
    margin-top: auto;
    padding-top: 24px;
    font-size: 14px;
    color: var(--color-gray-light);
    line-height: 1.6;
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero h1,
.hero-lead,
.hero-cta {
    animation: fadeInUp 0.5s ease-out forwards;
    opacity: 0;
}

.hero h1 { animation-delay: 0.1s; }
.hero-lead { animation-delay: 0.2s; }
.hero-cta { animation-delay: 0.3s; }

/* Page content (Privacy, Cookies) */
.page-content {
    padding: 160px 0 100px;
    background: var(--color-white);
}

.page-content-inner {
    max-width: 720px;
}

.page-content h1 {
    font-size: clamp(32px, 4vw, 42px);
    font-weight: 600;
    line-height: 1.2;
    color: var(--color-black);
    margin-bottom: 16px;
}

.page-content .updated {
    font-size: 14px;
    color: var(--color-gray);
    margin-bottom: 48px;
}

.page-content h2 {
    font-size: 20px;
    font-weight: 600;
    color: var(--color-black);
    margin-top: 48px;
    margin-bottom: 16px;
}

.page-content h3 {
    font-size: 16px;
    font-weight: 600;
    color: var(--color-black);
    margin-top: 24px;
    margin-bottom: 12px;
}

.page-content p {
    font-size: 16px;
    color: var(--color-gray-dark);
    margin-bottom: 16px;
    line-height: 1.7;
}

.page-content ul {
    margin-bottom: 16px;
    padding-left: 24px;
}

.page-content li {
    font-size: 16px;
    color: var(--color-gray-dark);
    margin-bottom: 8px;
    line-height: 1.7;
}

.page-content a {
    color: var(--color-black);
    text-decoration: underline;
}

.page-content a:hover {
    color: var(--color-gray);
}

.page-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 24px 0;
    font-size: 14px;
}

.page-content th,
.page-content td {
    text-align: left;
    padding: 12px 16px;
    border-bottom: 1px solid var(--color-beige-dark);
}

.page-content th {
    font-weight: 600;
    color: var(--color-black);
    background: var(--color-beige);
}

.page-content td {
    color: var(--color-gray-dark);
}

.page-content address {
    font-style: normal;
    font-size: 16px;
    color: var(--color-gray-dark);
    line-height: 1.7;
    margin-top: 24px;
}