@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&family=JetBrains+Mono:wght@400&display=swap');

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

:root {
    --canvas: #f7f7f4;
    --canvas-soft: #fafaf7;
    --surface-card: #ffffff;
    --surface-strong: #e6e5e0;
    --primary: #f54e00;
    --primary-active: #d04200;
    --on-primary: #ffffff;
    --ink: #26251e;
    --body: #5a5852;
    --body-strong: #26251e;
    --muted: #807d72;
    --muted-soft: #a09c92;
    --hairline: #e6e5e0;
    --hairline-soft: #efeee8;
    --hairline-strong: #cfcdc4;
    --semantic-success: #1f8a65;
    --semantic-error: #cf2d56;

    --rounded-xs: 4px;
    --rounded-sm: 6px;
    --rounded-md: 8px;
    --rounded-lg: 12px;
    --rounded-xl: 16px;
    --rounded-pill: 9999px;

    --font-sans: 'Inter', system-ui, 'Helvetica Neue', Helvetica, Arial, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
}

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--canvas);
    color: var(--body);
    font-family: var(--font-sans);
    font-size: 16px;
    font-weight: 400;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

a {
    color: var(--ink);
    text-decoration: none;
}

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

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ── TOP NAV ── */
.top-nav {
    background-color: var(--canvas);
    border-bottom: 1px solid var(--hairline);
    height: 64px;
    position: sticky;
    top: 0;
    z-index: 100;
}

.top-nav__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

.top-nav__logo {
    font-size: 16px;
    font-weight: 600;
    color: var(--ink);
    letter-spacing: -0.02em;
    line-height: 1;
}

.top-nav__logo span {
    color: var(--primary);
}

.top-nav__menu {
    display: flex;
    align-items: center;
    gap: 28px;
    list-style: none;
}

.top-nav__menu a {
    font-size: 14px;
    font-weight: 500;
    color: var(--body);
    line-height: 1.4;
    transition: color 0.15s;
}

.top-nav__menu a:hover {
    color: var(--ink);
}

.top-nav__hamburger {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    flex-direction: column;
    gap: 5px;
}

.top-nav__hamburger span {
    display: block;
    width: 22px;
    height: 2px;
    background-color: var(--ink);
    border-radius: 2px;
    transition: all 0.2s;
}

.top-nav__mobile {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background-color: var(--canvas);
    border-bottom: 1px solid var(--hairline);
    padding: 16px 24px;
    z-index: 99;
}

.top-nav__mobile.is-open {
    display: block;
}

.top-nav__mobile ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.top-nav__mobile ul a {
    font-size: 15px;
    font-weight: 500;
    color: var(--ink);
}

/* ── HERO ── */
.hero {
    padding: 80px 0;
    border-bottom: 1px solid var(--hairline);
}

.hero__badge {
    display: inline-flex;
    align-items: center;
    background-color: var(--surface-strong);
    color: var(--ink);
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.88px;
    text-transform: uppercase;
    border-radius: var(--rounded-pill);
    padding: 4px 10px;
    margin-bottom: 24px;
}

.hero__headline {
    font-size: 72px;
    font-weight: 400;
    color: var(--ink);
    line-height: 1.1;
    letter-spacing: -2.16px;
    max-width: 860px;
    margin-bottom: 24px;
}

.hero__sub {
    font-size: 18px;
    font-weight: 400;
    color: var(--body);
    line-height: 1.5;
    max-width: 600px;
    margin-bottom: 16px;
}

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

.hero__image {
    margin-top: 48px;
    border-radius: var(--rounded-lg);
    border: 1px solid var(--hairline);
    overflow: hidden;
    max-height: 480px;
}

.hero__image img {
    width: 100%;
    height: 480px;
    object-fit: cover;
}

/* ── SECTION ── */
.section {
    padding: 80px 0;
    border-bottom: 1px solid var(--hairline-soft);
}

.section__label {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.88px;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 16px;
}

.section__title {
    font-size: 36px;
    font-weight: 400;
    color: var(--ink);
    line-height: 1.2;
    letter-spacing: -0.72px;
    margin-bottom: 16px;
}

.section__body {
    font-size: 16px;
    color: var(--body);
    line-height: 1.5;
    max-width: 680px;
    margin-bottom: 48px;
}

/* ── CARDS GRID ── */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

.feature-card {
    background-color: var(--surface-card);
    border: 1px solid var(--hairline);
    border-radius: var(--rounded-lg);
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    transition: border-color 0.15s;
}

.feature-card:hover {
    border-color: var(--hairline-strong);
}

.feature-card__img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: var(--rounded-md);
    margin-bottom: 4px;
}

.feature-card__tag {
    display: inline-flex;
    background-color: var(--surface-strong);
    color: var(--ink);
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.88px;
    text-transform: uppercase;
    border-radius: var(--rounded-pill);
    padding: 3px 8px;
    align-self: flex-start;
}

.feature-card__title {
    font-size: 18px;
    font-weight: 600;
    color: var(--ink);
    line-height: 1.4;
}

.feature-card__excerpt {
    font-size: 14px;
    color: var(--body);
    line-height: 1.5;
    flex: 1;
}

.feature-card__date {
    font-size: 13px;
    color: var(--muted);
}

.feature-card__link {
    font-size: 14px;
    font-weight: 500;
    color: var(--primary);
    display: inline-flex;
    align-items: center;
    gap: 4px;
    margin-top: auto;
}

/* ── INFO BAND ── */
.info-band {
    background-color: var(--surface-card);
    border-top: 1px solid var(--hairline);
    border-bottom: 1px solid var(--hairline);
    padding: 80px 0;
}

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

.info-band__title {
    font-size: 26px;
    font-weight: 400;
    color: var(--ink);
    line-height: 1.25;
    letter-spacing: -0.325px;
    margin-bottom: 16px;
}

.info-band__text {
    font-size: 16px;
    color: var(--body);
    line-height: 1.5;
    margin-bottom: 12px;
}

.info-band__list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-top: 16px;
}

.info-band__list li {
    font-size: 14px;
    color: var(--body);
    padding-left: 16px;
    position: relative;
}

.info-band__list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 8px;
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background-color: var(--primary);
}

.info-band__image {
    border-radius: var(--rounded-lg);
    border: 1px solid var(--hairline);
    overflow: hidden;
}

.info-band__image img {
    width: 100%;
    height: 360px;
    object-fit: cover;
}

/* ── ARTICLE PAGE ── */
.article-header {
    padding: 64px 0 48px;
    border-bottom: 1px solid var(--hairline);
    max-width: 760px;
}

.article-header__tag {
    display: inline-flex;
    background-color: var(--surface-strong);
    color: var(--ink);
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.88px;
    text-transform: uppercase;
    border-radius: var(--rounded-pill);
    padding: 4px 10px;
    margin-bottom: 20px;
}

.article-header__title {
    font-size: 42px;
    font-weight: 400;
    color: var(--ink);
    line-height: 1.15;
    letter-spacing: -1px;
    margin-bottom: 20px;
}

.article-header__meta {
    font-size: 13px;
    color: var(--muted);
    display: flex;
    gap: 16px;
}

.article-body {
    padding: 48px 0 80px;
    display: grid;
    grid-template-columns: 760px 1fr;
    gap: 48px;
    align-items: start;
}

.article-content {
    max-width: 760px;
}

.article-content h2 {
    font-size: 26px;
    font-weight: 400;
    color: var(--ink);
    line-height: 1.25;
    letter-spacing: -0.325px;
    margin: 40px 0 16px;
}

.article-content h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--ink);
    line-height: 1.4;
    margin: 28px 0 12px;
}

.article-content p {
    font-size: 16px;
    color: var(--body);
    line-height: 1.6;
    margin-bottom: 16px;
}

.article-content ul, .article-content ol {
    padding-left: 20px;
    margin-bottom: 16px;
}

.article-content li {
    font-size: 16px;
    color: var(--body);
    line-height: 1.6;
    margin-bottom: 6px;
}

.article-content .article-img {
    width: 100%;
    border-radius: var(--rounded-lg);
    border: 1px solid var(--hairline);
    margin: 28px 0;
    object-fit: cover;
    max-height: 420px;
}

.article-content .ref-link {
    color: var(--primary);
    font-size: 13px;
}

.article-content .updated-note {
    font-size: 13px;
    color: var(--muted);
    border-top: 1px solid var(--hairline);
    padding-top: 16px;
    margin-top: 40px;
}

.article-sidebar {
    position: sticky;
    top: 84px;
}

.sidebar-block {
    background-color: var(--surface-card);
    border: 1px solid var(--hairline);
    border-radius: var(--rounded-lg);
    padding: 24px;
    margin-bottom: 16px;
}

.sidebar-block__title {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.88px;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 16px;
}

.sidebar-block__links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.sidebar-block__links a {
    font-size: 14px;
    color: var(--body);
    line-height: 1.4;
}

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

/* ── FORM ── */
.contact-section {
    padding: 80px 0;
    background-color: var(--surface-card);
    border-top: 1px solid var(--hairline);
}

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

.contact-section__title {
    font-size: 36px;
    font-weight: 400;
    color: var(--ink);
    line-height: 1.2;
    letter-spacing: -0.72px;
    margin-bottom: 12px;
}

.contact-section__text {
    font-size: 16px;
    color: var(--body);
    line-height: 1.5;
    margin-bottom: 24px;
}

.contact-section__info {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.contact-section__info-item {
    font-size: 14px;
    color: var(--body);
}

.contact-section__info-item strong {
    color: var(--ink);
    font-weight: 600;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.form-field {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.form-field label {
    font-size: 14px;
    font-weight: 500;
    color: var(--ink);
}

.form-field input,
.form-field textarea {
    background-color: var(--surface-card);
    border: 1px solid var(--hairline-strong);
    border-radius: var(--rounded-md);
    padding: 12px 16px;
    font-size: 16px;
    font-family: var(--font-sans);
    color: var(--ink);
    height: 44px;
    outline: none;
    transition: border-color 0.15s;
}

.form-field textarea {
    height: auto;
    min-height: 120px;
    resize: vertical;
}

.form-field input:focus,
.form-field textarea:focus {
    border-color: var(--ink);
}

.form-field input.is-invalid,
.form-field textarea.is-invalid {
    border-color: var(--semantic-error);
}

.form-field__error {
    font-size: 12px;
    color: var(--semantic-error);
    display: none;
}

.form-field__error.is-visible {
    display: block;
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background-color: var(--primary);
    color: var(--on-primary);
    font-size: 14px;
    font-weight: 500;
    font-family: var(--font-sans);
    padding: 10px 18px;
    height: 40px;
    border-radius: var(--rounded-md);
    border: none;
    cursor: pointer;
    transition: background-color 0.15s;
    gap: 8px;
}

.btn-primary:hover {
    background-color: var(--primary-active);
    color: var(--on-primary);
}

.btn-primary:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.form-confirmation {
    display: none;
    background-color: var(--canvas);
    border: 1px solid var(--hairline);
    border-radius: var(--rounded-md);
    padding: 16px;
    font-size: 14px;
    color: var(--semantic-success);
    margin-top: 8px;
}

.form-confirmation.is-visible {
    display: block;
}

/* ── COOKIE BANNER ── */
.cookie-banner {
    position: fixed;
    bottom: 24px;
    left: 24px;
    right: 24px;
    max-width: 560px;
    background-color: var(--surface-card);
    border: 1px solid var(--hairline-strong);
    border-radius: var(--rounded-lg);
    padding: 20px 24px;
    z-index: 200;
    box-shadow: none;
    display: none;
}

.cookie-banner.is-visible {
    display: block;
}

.cookie-banner__text {
    font-size: 14px;
    color: var(--body);
    margin-bottom: 16px;
    line-height: 1.5;
}

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

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

.btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background-color: var(--surface-card);
    color: var(--ink);
    font-size: 14px;
    font-weight: 500;
    font-family: var(--font-sans);
    padding: 10px 18px;
    height: 40px;
    border-radius: var(--rounded-md);
    border: 1px solid var(--hairline-strong);
    cursor: pointer;
    transition: border-color 0.15s;
}

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

/* ── FOOTER ── */
.site-footer {
    background-color: var(--canvas);
    border-top: 1px solid var(--hairline);
    padding: 64px 0 48px;
}

.site-footer__grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr 1fr;
    gap: 32px;
    margin-bottom: 48px;
}

.site-footer__brand {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.site-footer__logo {
    font-size: 15px;
    font-weight: 600;
    color: var(--ink);
    letter-spacing: -0.02em;
}

.site-footer__logo span {
    color: var(--primary);
}

.site-footer__tagline {
    font-size: 14px;
    color: var(--muted);
    line-height: 1.5;
    max-width: 240px;
}

.site-footer__col-title {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.88px;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 16px;
}

.site-footer__links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.site-footer__links a {
    font-size: 14px;
    color: var(--body);
    line-height: 1.4;
}

.site-footer__links a:hover {
    color: var(--ink);
}

.site-footer__bottom {
    border-top: 1px solid var(--hairline);
    padding-top: 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
}

.site-footer__copy {
    font-size: 13px;
    color: var(--muted);
}

.site-footer__disclaimer {
    font-size: 12px;
    color: var(--muted-soft);
    max-width: 480px;
    text-align: right;
    line-height: 1.4;
}

/* ── BREADCRUMB ── */
.breadcrumb {
    padding: 16px 0;
    border-bottom: 1px solid var(--hairline-soft);
}

.breadcrumb__list {
    list-style: none;
    display: flex;
    align-items: center;
    gap: 8px;
}

.breadcrumb__list li {
    font-size: 13px;
    color: var(--muted);
    display: flex;
    align-items: center;
    gap: 8px;
}

.breadcrumb__list li::after {
    content: '/';
    color: var(--hairline-strong);
}

.breadcrumb__list li:last-child::after {
    display: none;
}

.breadcrumb__list a {
    color: var(--muted);
}

.breadcrumb__list a:hover {
    color: var(--ink);
}

.breadcrumb__list li:last-child {
    color: var(--ink);
}

/* ── PAGE HEADER (about/privacy/terms) ── */
.page-header {
    padding: 64px 0 48px;
    border-bottom: 1px solid var(--hairline);
    max-width: 760px;
}

.page-header__title {
    font-size: 42px;
    font-weight: 400;
    color: var(--ink);
    line-height: 1.15;
    letter-spacing: -1px;
    margin-bottom: 12px;
}

.page-header__subtitle {
    font-size: 16px;
    color: var(--body);
    line-height: 1.5;
}

.page-content {
    padding: 48px 0 80px;
    max-width: 760px;
}

.page-content h2 {
    font-size: 22px;
    font-weight: 400;
    color: var(--ink);
    line-height: 1.3;
    letter-spacing: -0.11px;
    margin: 36px 0 12px;
}

.page-content p {
    font-size: 16px;
    color: var(--body);
    line-height: 1.6;
    margin-bottom: 14px;
}

.page-content ul {
    padding-left: 20px;
    margin-bottom: 14px;
}

.page-content li {
    font-size: 16px;
    color: var(--body);
    line-height: 1.6;
    margin-bottom: 6px;
}

.page-content .updated-note {
    font-size: 13px;
    color: var(--muted);
    margin-top: 40px;
    padding-top: 16px;
    border-top: 1px solid var(--hairline);
}

/* ── ABOUT TEAM GRID ── */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    margin-top: 16px;
}

.about-block__title {
    font-size: 18px;
    font-weight: 600;
    color: var(--ink);
    margin-bottom: 10px;
}

.about-block__text {
    font-size: 15px;
    color: var(--body);
    line-height: 1.6;
}

/* ── RESPONSIVE ── */
@media (max-width: 1024px) {
    .hero__headline {
        font-size: 56px;
        letter-spacing: -1.5px;
    }

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

    .article-body {
        grid-template-columns: 1fr;
    }

    .article-sidebar {
        position: static;
    }

    .info-band__grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .site-footer__grid {
        grid-template-columns: 1fr 1fr 1fr;
    }

    .contact-section__inner {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}

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

    .top-nav__hamburger {
        display: flex;
    }

    .hero__headline {
        font-size: 36px;
        letter-spacing: -1px;
    }

    .hero__sub {
        font-size: 16px;
    }

    .hero__image img {
        height: 260px;
    }

    .section__title {
        font-size: 26px;
    }

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

    .article-header__title {
        font-size: 28px;
    }

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

    .site-footer__grid {
        grid-template-columns: 1fr 1fr;
    }

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

    .site-footer__disclaimer {
        text-align: left;
    }

    .cookie-banner {
        left: 16px;
        right: 16px;
        bottom: 16px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }

    .hero {
        padding: 48px 0;
    }

    .section {
        padding: 48px 0;
    }

    .site-footer__grid {
        grid-template-columns: 1fr;
    }

    .cookie-banner__actions {
        flex-direction: column;
    }
}