/* === VARIABLES === */
:root {
    --color-bg: #121213;
    --color-surface: #b8ffed;
    --color-ink: #2d3348;
    --color-accent: #0a0a0b;
    --color-secondary-accent: #e0f8f0;

    --font-main: 'Inter', system-ui, -apple-system, sans-serif;
    --font-mono: 'Courier New', Courier, monospace;

    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;

    --spacing-xs: 8px;
    --spacing-sm: 16px;
    --spacing-md: 24px;
    --spacing-lg: 48px;
    --spacing-xl: 120px;

    --transition-fast: 0.2s ease;
    --transition-med: 0.4s ease;

    --container-max: 1200px;
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-main);
    background-color: var(--color-bg);
    color: var(--color-surface);
    line-height: 1.6;
    letter-spacing: -0.02em;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    line-height: 1.1;
    letter-spacing: -0.02em;
    color: var(--color-surface);
    margin-bottom: var(--spacing-md);
}

h1 { font-size: 3rem; font-weight: 700; }
h2 { font-size: 2.25rem; font-weight: 600; }
h3 { font-size: 1.5rem; font-weight: 500; }

p {
    margin-bottom: var(--spacing-md);
    color: var(--color-secondary-accent);
}

a {
    color: var(--color-surface);
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

button {
    font-family: var(--font-main);
    cursor: pointer;
    border: none;
    background: none;
    color: inherit;
}

ul, ol {
    list-style: none;
}

/* === LAYOUT === */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.section-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-lg);
    align-items: center;
}

.content-section {
    padding: var(--spacing-xl) 0;
}

.reversed .section-grid {
    direction: rtl;
}
.reversed .section-text,
.reversed .section-visual {
    direction: ltr;
}

/* === HEADER === */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background-color: rgba(18, 18, 19, 0.9);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--color-ink);
    padding: var(--spacing-sm) 0;
    transition: box-shadow var(--transition-fast);
}

.site-header.has-shadow {
    box-shadow: 0 2px 12px rgba(184, 255, 237, 0.1);
}

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

.brand-logo {
    font-size: 1.25rem;
    font-weight: 700;
    font-family: var(--font-mono);
    letter-spacing: 0.05em;
}

.main-nav {
    display: flex;
    gap: var(--spacing-md);
}

.main-nav a {
    font-size: 0.9rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

#menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    padding: var(--spacing-xs);
}

.burger-line {
    width: 24px;
    height: 2px;
    background-color: var(--color-surface);
    transition: transform var(--transition-fast);
}

/* === HERO === */
.hero-section {
    min-height: 80vh;
    display: flex;
    align-items: center;
    padding-top: var(--spacing-xl);
    position: relative;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: var(--spacing-lg);
    align-items: center;
}

.hero-content {
    z-index: 2;
}

.hero-content h1 {
    max-width: 900px;
    margin-bottom: var(--spacing-md);
}

.hero-subtitle {
    font-size: 1.1rem;
    margin-bottom: var(--spacing-lg);
    max-width: 600px;
    color: var(--color-secondary-accent);
}

.hero-ctas {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.hero-visual {
    position: relative;
    height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-envelope-svg {
    width: 100%;
    height: 100%;
    max-width: 400px;
}

.dot-grid {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.dot {
    position: absolute;
    width: 4px;
    height: 4px;
    background-color: var(--color-surface);
    border-radius: 50%;
    opacity: 0.5;
    transition: transform 0.1s ease-out;
}

/* === BUTTONS === */
.btn {
    display: inline-block;
    padding: 12px 24px;
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    text-align: center;
}

.btn-primary {
    background-color: var(--color-surface);
    color: var(--color-ink);
    border: 2px solid var(--color-surface);
}

.btn-primary:hover {
    background-color: transparent;
    color: var(--color-surface);
}

.btn-secondary {
    background-color: transparent;
    color: var(--color-surface);
    border: 2px solid var(--color-surface);
}

.btn-secondary:hover {
    background-color: var(--color-surface);
    color: var(--color-ink);
}

/* === STATS === */
.stats-section {
    padding: var(--spacing-lg) 0;
    background-color: var(--color-ink);
    color: var(--color-surface);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-md);
    text-align: center;
}

.stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.stat-number {
    font-family: var(--font-mono);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-surface);
}

.stat-label {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-secondary-accent);
}

/* === SECTIONS === */
.section-text h2 {
    margin-bottom: var(--spacing-lg);
}

.section-visual {
    display: flex;
    align-items: center;
    justify-content: center;
}

.section-visual svg {
    width: 100%;
    max-width: 300px;
    height: auto;
}

/* === STEPS === */
.steps-container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.step-card {
    padding: var(--spacing-md);
    border: 1px solid var(--color-ink);
    border-radius: var(--radius-md);
    background-color: rgba(45, 51, 72, 0.2);
    transition: background-color var(--transition-fast);
}

.step-card:hover {
    background-color: rgba(45, 51, 72, 0.4);
}

.step-number {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--color-surface);
    display: block;
    margin-bottom: var(--spacing-xs);
}

.step-card h3 {
    margin-bottom: var(--spacing-sm);
    color: var(--color-surface);
}

.step-card p {
    margin-bottom: 0;
    font-size: 0.9rem;
}

/* === FEATURES === */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
}

.feature-card {
    padding: var(--spacing-md);
    border: 1px solid var(--color-ink);
    border-radius: var(--radius-md);
    background-color: rgba(45, 51, 72, 0.1);
}

.feature-icon {
    width: 32px;
    height: 32px;
    margin-bottom: var(--spacing-sm);
}

.feature-card h3 {
    margin-bottom: var(--spacing-sm);
    color: var(--color-surface);
}

.feature-card p {
    font-size: 0.9rem;
    color: var(--color-secondary-accent);
}

/* === TESTIMONIALS === */
.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
}

.testimonial-card {
    padding: var(--spacing-md);
    border: 1px solid var(--color-ink);
    border-radius: var(--radius-md);
    background-color: rgba(45, 51, 72, 0.2);
}

.stars {
    font-size: 1.2rem;
    color: var(--color-surface);
    margin-bottom: var(--spacing-sm);
}

.testimonial-card p {
    font-style: italic;
    margin-bottom: var(--spacing-md);
    font-size: 0.9rem;
}

.author {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-surface);
}

.author span {
    display: block;
    font-size: 0.8rem;
    font-weight: 400;
    color: var(--color-secondary-accent);
}

/* === FAQ === */
.faq-container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.faq-item {
    border: 1px solid var(--color-ink);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.faq-question {
    width: 100%;
    text-align: left;
    padding: var(--spacing-md);
    font-weight: 600;
    color: var(--color-surface);
    background-color: rgba(45, 51, 72, 0.2);
    transition: background-color var(--transition-fast);
}

.faq-question:hover {
    background-color: rgba(45, 51, 72, 0.4);
}

.faq-answer {
    padding: 0 var(--spacing-md);
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-med), padding var(--transition-med);
}

.faq-item.active .faq-answer {
    max-height: 200px;
    padding: var(--spacing-md);
}

/* === CONTACT FORM === */
.contact-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.form-field {
    padding: 12px 16px;
    background-color: transparent;
    border: 1px solid var(--color-ink);
    border-radius: var(--radius-md);
    color: var(--color-surface);
    font-size: 1rem;
    transition: border-color var(--transition-fast);
}

.form-field:focus {
    outline: none;
    border-color: var(--color-surface);
}

.field-error {
    color: #ff6b6b;
    font-size: 0.8rem;
    display: none;
}

.field-error.visible {
    display: block;
}

/* === CTA BANNER === */
.cta-banner {
    padding: var(--spacing-xl) 0;
    background-color: var(--color-ink);
    text-align: center;
}

.cta-content h2 {
    margin-bottom: var(--spacing-lg);
}

/* === FOOTER === */
.site-footer {
    padding: var(--spacing-xl) 0 var(--spacing-lg);
    background-color: var(--color-accent);
    border-top: 1px solid var(--color-ink);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.footer-col h3 {
    font-size: 1rem;
    margin-bottom: var(--spacing-md);
    color: var(--color-surface);
}

.footer-col a {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-size: 0.9rem;
    color: var(--color-secondary-accent);
}

.footer-col p {
    font-size: 0.9rem;
    color: var(--color-secondary-accent);
    margin-bottom: var(--spacing-xs);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--color-ink);
}

.footer-bottom p {
    font-size: 0.8rem;
    color: var(--color-ink);
    margin-bottom: 0;
}

/* === COOKIE BANNER === */
.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background-color: var(--color-ink);
    padding: var(--spacing-md);
    z-index: 1000;
    transform: translateY(100%);
    transition: transform var(--transition-med);
}

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

.cookie-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-md);
}

.cookie-actions {
    display: flex;
    gap: var(--spacing-sm);
}

.cookie-banner p {
    font-size: 0.9rem;
    margin-bottom: 0;
}

/* === LEGAL PAGES === */
.legal-page {
    padding: var(--spacing-xl) 0;
}

.breadcrumbs {
    font-size: 0.8rem;
    color: var(--color-secondary-accent);
    margin-bottom: var(--spacing-md);
}

.breadcrumbs a {
    color: var(--color-surface);
}

.effective-date {
    font-size: 0.9rem;
    color: var(--color-secondary-accent);
    margin-bottom: var(--spacing-lg);
}

.legal-section {
    margin-bottom: var(--spacing-lg);
}

.legal-section h2 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
    color: var(--color-surface);
}

.legal-section p {
    font-size: 0.9rem;
    color: var(--color-secondary-accent);
}

.cookie-table-wrapper {
    overflow-x: auto;
}

.cookie-table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: var(--spacing-md);
}

.cookie-table th,
.cookie-table td {
    padding: var(--spacing-sm);
    border: 1px solid var(--color-ink);
    text-align: left;
    font-size: 0.9rem;
}

.cookie-table th {
    background-color: rgba(45, 51, 72, 0.2);
    color: var(--color-surface);
}

.cookie-table td {
    color: var(--color-secondary-accent);
}

/* === THANK YOU === */
.site-thank-you .thank-you-card {
    min-height: 80vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.success-icon {
    width: 64px;
    height: 64px;
    margin-bottom: var(--spacing-md);
}

.thank-you-card h1 {
    margin-bottom: var(--spacing-md);
}

.thank-you-card p {
    margin-bottom: var(--spacing-lg);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* === PAGE HERO === */
.page-hero {
    padding: var(--spacing-xl) 0 var(--spacing-lg);
    text-align: center;
}

.page-hero-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
}

.pill-badge {
    display: inline-block;
    padding: 4px 12px;
    background-color: var(--color-ink);
    color: var(--color-surface);
    font-size: 0.8rem;
    font-weight: 600;
    border-radius: 20px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.page-hero-visual {
    width: 100%;
    max-width: 400px;
    margin: var(--spacing-lg) auto 0;
}

.page-hero-visual svg {
    width: 100%;
    height: auto;
}

/* === DYNAMIC FORECAST === */
.forecast-input-group {
    margin-bottom: var(--spacing-lg);
}

.forecast-input-group label {
    display: block;
    margin-bottom: var(--spacing-xs);
    color: var(--color-surface);
    font-size: 0.9rem;
}

.forecast-output {
    height: 300px;
    background-color: rgba(45, 51, 72, 0.2);
    border: 1px solid var(--color-ink);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.forecast-output svg {
    width: 100%;
    height: 100%;
}

/* === SCROLL PROGRESS === */
#scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    height: 2px;
    background-color: var(--color-surface);
    width: 0%;
    z-index: 101;
    transition: width 0.1s ease;
}

/* === FADE UP === */
.fade-up {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-up.visible {
    opacity: 1;
    transform: translateY(0);
}

/* === RESPONSIVE === */
@media (max-width: 768px) {
    :root {
        --spacing-xl: 60px;
        --spacing-lg: 24px;
        --spacing-md: 16px;
    }

    h1 { font-size: 2rem; }
    h2 { font-size: 1.75rem; }

    .section-grid,
    .hero-grid,
    .footer-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }

    .reversed .section-grid {
        direction: ltr;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .hero-section {
        min-height: auto;
        padding-top: var(--spacing-lg);
    }

    .hero-content h1 {
        max-width: 100%;
    }

    .hero-visual {
        height: 200px;
        margin-top: var(--spacing-md);
    }

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

    .cookie-actions {
        width: 100%;
        justify-content: flex-end;
    }

    .main-nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background-color: var(--color-bg);
        flex-direction: column;
        padding: var(--spacing-md);
        border-bottom: 1px solid var(--color-ink);
    }

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

    #menu-toggle {
        display: flex;
    }
}