/* Компоненты головного сайта школы «Точка Кода». Токены — в tokens.css. */

/* ---------- Reset / base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    font-family: var(--font-body);
    font-size: var(--text-base);
    line-height: var(--leading-normal);
    color: var(--color-text);
    background: var(--color-bg);
    -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; }
ul { padding: 0; margin: 0; list-style: none; }
h1, h2, h3, h4 {
    font-family: var(--font-heading);
    line-height: var(--leading-tight);
    margin: 0 0 var(--space-4);
    color: var(--color-text);
    overflow-wrap: break-word;
}
h1 { font-size: var(--text-3xl); font-weight: 800; }
h2 { font-size: var(--text-2xl); font-weight: 800; }
h3 { font-size: var(--text-lg); font-weight: 700; }
p { margin: 0 0 var(--space-4); overflow-wrap: break-word; }
.container {
    max-width: var(--container-max);
    margin-inline: auto;
    padding-inline: var(--space-6);
}
.visually-hidden {
    position: absolute; width: 1px; height: 1px; overflow: hidden;
    clip: rect(0 0 0 0); white-space: nowrap;
}

/* ---------- Layout sections ---------- */
.section { padding-block: var(--space-24); }
.section--subtle { background: var(--color-bg-subtle); }
.section-head { max-width: 640px; margin-bottom: var(--space-12); }
.section-head--center { margin-inline: auto; text-align: center; }
.eyebrow {
    display: inline-block;
    font-family: var(--font-heading);
    font-size: var(--text-xs);
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-primary-500);
    margin-bottom: var(--space-3);
}
.lead { font-size: var(--text-lg); color: var(--color-text-muted); }

/* ---------- Buttons ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    gap: var(--space-2);
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: var(--text-sm);
    padding: 0.85rem 1.5rem;
    border-radius: var(--radius-full);
    border: 1px solid transparent;
    cursor: pointer;
    text-decoration: none;
    transition: transform 0.15s ease, box-shadow 0.15s ease, background-color 0.15s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn--primary { background: var(--gradient); color: var(--color-primary-900); box-shadow: var(--shadow-sm); }
.btn--primary:hover { box-shadow: var(--shadow-md); }
.btn--secondary { background: transparent; border-color: color-mix(in srgb, currentColor 30%, transparent); color: inherit; }
.btn--secondary:hover { background: var(--color-bg-muted); }
.btn--sm { padding: 0.6rem 1.1rem; font-size: var(--text-xs); }
.btn--block { width: 100%; }

/* ---------- Header / Nav ---------- */
.site-header {
    position: sticky;
    top: 0;
    z-index: 40;
    height: var(--header-height);
    display: flex;
    align-items: center;
    background: color-mix(in srgb, var(--color-bg) 88%, transparent);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border);
}
.nav { display: flex; align-items: center; justify-content: space-between; width: 100%; gap: var(--space-6); }
.nav__logo {
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: var(--text-lg);
    text-decoration: none;
    color: var(--color-primary-700);
    white-space: nowrap;
    display: flex;
    align-items: center;
    gap: .55rem;
}
.nav__logo span { color: var(--color-accent-500); }
.nav__logo-icon { flex-shrink: 0; }
.nav__links {
    display: flex;
    align-items: center;
    gap: var(--space-8);
}
.nav__link {
    text-decoration: none;
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-text-muted);
}
.nav__link:hover { color: var(--color-primary-700); }
.nav__actions { display: flex; align-items: center; gap: var(--space-4); }
.nav__toggle {
    display: none;
    background: none;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    width: 42px;
    height: 42px;
    align-items: center;
    justify-content: center;
    cursor: pointer;
}
.nav__toggle span, .nav__toggle::before, .nav__toggle::after {
    content: "";
    display: block;
    width: 18px;
    height: 2px;
    background: var(--color-text);
    position: relative;
}
.nav__toggle::before { transform: translateY(-6px); position: absolute; }
.nav__toggle::after { transform: translateY(6px); position: absolute; }

@media (max-width: 860px) {
    .nav__toggle { display: inline-flex; }
    .nav__links {
        position: absolute;
        top: var(--header-height);
        left: 0;
        right: 0;
        flex-direction: column;
        align-items: flex-start;
        gap: 0;
        background: var(--color-surface);
        border-bottom: 1px solid var(--color-border);
        padding: var(--space-4) var(--space-6) var(--space-6);
        transform: translateY(-8px);
        opacity: 0;
        visibility: hidden;
        pointer-events: none;
        transition: 0.15s ease;
    }
    .nav__links.is-open { transform: translateY(0); opacity: 1; visibility: visible; pointer-events: auto; }
    .nav__link { padding: var(--space-3) 0; width: 100%; border-bottom: 1px solid var(--color-border); }
    .nav__actions .btn--secondary { display: none; }
}

/* ---------- Hero ---------- */
.hero { padding-block: var(--space-24) var(--space-16); overflow: hidden; position: relative; }
.hero::before {
    content: "";
    position: absolute;
    top: -220px;
    right: -220px;
    width: 620px;
    height: 620px;
    background: radial-gradient(circle, color-mix(in srgb, var(--color-primary-700) 25%, transparent), transparent 70%);
    pointer-events: none;
}
.hero__grid {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: var(--space-16);
    align-items: center;
}
.hero__actions { display: flex; flex-wrap: wrap; gap: var(--space-4); margin-top: var(--space-8); }
.hero__stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-6);
    margin-top: var(--space-12);
    padding-top: var(--space-8);
    border-top: 1px solid var(--color-border);
}
.stat__value {
    font-family: var(--font-heading);
    font-size: var(--text-2xl);
    font-weight: 800;
    color: var(--color-primary-700);
}
.stat__label { font-size: var(--text-xs); color: var(--color-text-muted); }
.hero__art {
    aspect-ratio: 4 / 5;
    border-radius: var(--radius-lg);
    background:
        radial-gradient(circle at 30% 20%, color-mix(in srgb, var(--color-accent-500) 55%, transparent) 0, transparent 45%),
        linear-gradient(155deg, var(--color-surface-2), var(--color-primary-900));
    border: 1px solid var(--color-border);
    position: relative;
    box-shadow: var(--shadow-lg);
}
.hero__art-logo {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 62%;
    max-width: 260px;
    height: auto;
    pointer-events: none;
}

@media (max-width: 480px) {
    .hero h1 { font-size: 1.85rem; }
}

@media (max-width: 900px) {
    .hero__grid { grid-template-columns: 1fr; }
    .hero__stats { grid-template-columns: repeat(3, 1fr); gap: var(--space-4); }
    .hero__art { width: min(380px, 100%); margin-inline: auto; }
}

/* ---------- Filters ---------- */
.filters {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-3);
    margin-bottom: var(--space-10);
}
.filter-group { display: flex; flex-wrap: wrap; gap: var(--space-2); }
.filter-group + .filter-group { padding-left: var(--space-4); border-left: 1px solid var(--color-border); }
.filter-chip {
    font-family: var(--font-heading);
    font-size: var(--text-xs);
    font-weight: 700;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-full);
    border: 1px solid var(--color-border);
    background: var(--color-surface);
    color: var(--color-text-muted);
    cursor: pointer;
}
.filter-chip:hover { border-color: var(--color-primary-500); color: var(--color-primary-700); }
.filter-chip.is-active {
    background: var(--gradient);
    border-color: transparent;
    color: var(--color-primary-900);
}

/* ---------- Course catalog ---------- */
.catalog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: var(--space-6);
}
.course-card {
    display: flex;
    flex-direction: column;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-6);
    box-shadow: var(--shadow-sm);
    transition: box-shadow 0.15s ease, transform 0.15s ease;
}
.course-card:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }
.course-card__badges { display: flex; flex-wrap: wrap; gap: var(--space-2); margin-bottom: var(--space-4); }
.badge {
    display: inline-flex;
    align-items: center;
    font-size: var(--text-xs);
    font-weight: 700;
    padding: 0.3rem 0.7rem;
    border-radius: var(--radius-full);
    white-space: nowrap;
}
.badge--category { background: var(--color-primary-100); color: var(--color-primary-700); }
.badge--level-beginner { background: var(--color-accent-100); color: var(--color-accent-700); }
.badge--level-experienced { background: var(--color-bg-muted); color: var(--color-text); }
.course-card__title { margin-bottom: var(--space-2); }
.course-card__summary { color: var(--color-text-muted); font-size: var(--text-sm); flex-grow: 1; }
.course-card__cohort { font-size: var(--text-sm); font-weight: 600; color: var(--color-accent-500); margin-bottom: var(--space-3); }
.course-card__meta {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3) var(--space-4);
    margin-block: var(--space-5);
    padding-block: var(--space-5);
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}
.meta-item__label { display: block; font-size: var(--text-xs); color: var(--color-text-muted); }
.meta-item__value { display: block; font-family: var(--font-heading); font-weight: 700; font-size: var(--text-sm); }
.meta-item--full { grid-column: 1 / -1; }
.course-card__footer { display: flex; align-items: center; justify-content: space-between; gap: var(--space-3); }
.course-card__price { font-family: var(--font-heading); font-weight: 800; font-size: var(--text-xl); color: var(--color-primary-700); }
.course-card__price-note { display: block; font-family: var(--font-body); font-weight: 400; font-size: var(--text-xs); color: var(--color-text-muted); }

.catalog-footer { display: flex; justify-content: center; margin-top: var(--space-10); }
.catalog-empty { text-align: center; color: var(--color-text-muted); padding: var(--space-10) 0; display: none; }
.catalog-empty.is-visible { display: block; }

/* ---------- Why / advantages ---------- */
.why-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: var(--space-6);
}
.why-card { padding: var(--space-6); background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-md); }
.why-card__icon {
    width: 44px; height: 44px;
    border-radius: var(--radius-sm);
    background: var(--color-primary-100);
    color: var(--color-primary-700);
    display: flex; align-items: center; justify-content: center;
    margin-bottom: var(--space-4);
    font-size: var(--text-lg);
}

/* ---------- Format ---------- */
.format-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--space-1);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    overflow: hidden;
}
.format-item { padding: var(--space-6); background: var(--color-surface); border-left: 1px solid var(--color-border); }
.format-item:first-child { border-left: none; }
.format-item__value { font-family: var(--font-heading); font-weight: 800; font-size: var(--text-lg); color: var(--color-primary-700); margin-bottom: var(--space-2); }

/* ---------- Teachers ---------- */
.teachers-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: var(--space-8); }
.teacher-card { display: flex; gap: var(--space-5); }
.teacher-card__photo {
    width: 104px; height: 104px;
    border-radius: var(--radius-md);
    object-fit: cover;
    flex-shrink: 0;
    box-shadow: var(--shadow-sm);
}
.teacher-card__role { color: var(--color-primary-500); font-size: var(--text-xs); font-weight: 700; text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: var(--space-2); }
.teacher-card__certified {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    margin: var(--space-2) 0 var(--space-3);
    padding: var(--space-1) var(--space-3) var(--space-1) var(--space-1);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    background: var(--color-surface-2);
    text-decoration: none;
    transition: border-color 0.15s ease;
}
.teacher-card__certified:hover { border-color: var(--color-accent-500); }
.teacher-card__certified img { width: 22px; height: 22px; display: block; }
.teacher-card__certified span { font-size: var(--text-xs); font-weight: 600; color: var(--color-accent-500); }
.teacher-card__bio { color: var(--color-text-muted); font-size: var(--text-sm); margin-bottom: var(--space-3); }
.teacher-card__link { font-size: var(--text-sm); font-weight: 700; color: var(--color-primary-700); text-decoration: none; }

/* ---------- Reviews ---------- */
.reviews-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: var(--space-6); }
.review-card { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-md); padding: var(--space-6); }
.review-card__quote { font-size: var(--text-sm); color: var(--color-text); margin-bottom: var(--space-4); }
.review-card__author { font-family: var(--font-heading); font-weight: 700; font-size: var(--text-sm); }
.review-card__course { font-size: var(--text-xs); color: var(--color-text-muted); }

/* ---------- Certificate ---------- */
.cert-section { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-12); align-items: center; }
.cert-frame {
    position: relative;
    aspect-ratio: 1.4 / 1;
}
.cert-frame--single {
    display: flex;
    align-items: center;
    justify-content: center;
    aspect-ratio: auto;
}
.cert-doc {
    border-radius: var(--radius-md);
    padding: var(--space-5);
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-lg);
    font-family: var(--font-heading);
    font-weight: 700;
    text-align: center;
    text-decoration: none;
    transition: transform 0.2s ease;
}
.cert-doc--alliance {
    width: 82%;
    aspect-ratio: 1.55 / 1;
    background: linear-gradient(155deg, var(--color-surface-2), var(--color-primary-900));
    border: 1px solid var(--color-border);
    color: var(--color-text);
    align-items: flex-start;
    justify-content: flex-start;
    gap: var(--space-2);
}
.cert-doc--alliance:hover { transform: translateY(-4px); }
.cert-doc__logo { width: 34px; height: 34px; }
.cert-doc__title { font-size: var(--text-sm); line-height: 1.25; }
.cert-doc__sub { font-family: var(--font-body); font-weight: 500; font-size: var(--text-xs); color: var(--color-accent-500); }
@media (max-width: 860px) { .cert-section { grid-template-columns: 1fr; } .cert-frame { margin-bottom: var(--space-6); } }

/* ---------- CTA / form ---------- */
.cta-band { background: var(--color-surface-2); border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: var(--space-16); }
.apply-form { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-4); max-width: 640px; }
.form-field { display: flex; flex-direction: column; gap: var(--space-2); }
.form-field--full { grid-column: 1 / -1; }
.form-field label { font-size: var(--text-xs); font-weight: 700; }
.form-field input, .form-field select {
    padding: 0.85rem 1rem;
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-border);
    background: var(--color-bg-subtle);
    color: var(--color-text);
    font-size: var(--text-sm);
    font-family: var(--font-body);
}
.form-field input::placeholder { color: var(--color-text-muted); }
.form-field select { color-scheme: dark; }
.form-note { grid-column: 1 / -1; font-size: var(--text-xs); color: var(--color-text-muted); }
.form-error-text { color: #ff8a8a; font-size: var(--text-xs); margin-top: var(--space-1); }
.form-field--checkbox { flex-direction: row; align-items: flex-start; gap: var(--space-2); }
.form-field--checkbox input { width: auto; padding: 0; margin: 0.2rem 0 0; flex-shrink: 0; }
.form-field--checkbox label { font-weight: 400; font-size: var(--text-xs); color: var(--color-text-muted); }
.toast {
    position: fixed;
    left: 50%;
    bottom: var(--space-8);
    transform: translate(-50%, 16px);
    z-index: 100;
    display: flex;
    align-items: center;
    gap: var(--space-3);
    width: max-content;
    max-width: min(360px, calc(100% - 2 * var(--space-6)));
    background: var(--color-surface-2);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--space-4) var(--space-5);
    box-shadow: var(--shadow-lg);
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-text);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.25s ease, transform 0.25s ease;
}
.toast.is-visible { opacity: 1; transform: translate(-50%, 0); }
.toast::before {
    content: "\2713";
    display: flex;
    align-items: center;
    justify-content: center;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: var(--gradient, var(--color-primary-700));
    color: var(--color-primary-900);
    font-weight: 800;
    font-size: var(--text-xs);
    flex-shrink: 0;
}

.contact-info-inline {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2) var(--space-6);
    align-items: center;
    margin-bottom: var(--space-8);
    padding-bottom: var(--space-8);
    border-bottom: 1px solid var(--color-border);
    font-size: var(--text-sm);
    color: var(--color-text-muted);
}
.contact-info-inline a {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: var(--text-lg);
    color: var(--color-text);
    text-decoration: none;
}
.contact-info-inline a:hover { color: var(--color-primary-500); }

@media (max-width: 640px) {
    .apply-form { grid-template-columns: 1fr; }
    .cta-band { padding: var(--space-8); }
}

/* ---------- Footer ---------- */
.site-footer { background: var(--color-bg-subtle); border-top: 1px solid var(--color-border); padding-block: var(--space-12); }
.footer-grid { display: flex; flex-wrap: wrap; justify-content: space-between; gap: var(--space-8); margin-bottom: var(--space-8); }
.footer-links { display: flex; flex-wrap: wrap; row-gap: var(--space-2); gap: var(--space-6); }
.footer-links a { text-decoration: none; font-size: var(--text-sm); color: var(--color-text-muted); }
.footer-links a:hover { color: var(--color-primary-700); }
.footer-bottom { display: flex; justify-content: space-between; flex-wrap: wrap; gap: var(--space-3); font-size: var(--text-xs); color: var(--color-text-muted); padding-top: var(--space-6); border-top: 1px solid var(--color-border); }

/* ---------- Placeholder banner (removed before launch) ---------- */
.preview-banner {
    background: var(--gradient);
    color: var(--color-primary-900);
    text-align: center;
    font-size: var(--text-xs);
    font-weight: 700;
    padding: var(--space-2);
}