/* =========================================================
   ПрофВитрина — Early access landing page
   ========================================================= */

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

:root {
    --dark: #061B3A;
    --primary: #0057FF;
    --primary-hover: #0046d6;
    --accent: #1E9BFF;
    --bg: #F4F8FC;
    --text: #0B1F3A;
    --text-secondary: #5B6B7C;
    --border: #D4DFEA;
    --white: #ffffff;
    --radius: 8px;
    --radius-lg: 12px;
    --shadow-md: 0 4px 16px rgba(6, 27, 58, 0.08);
    --transition: 0.2s ease;
    --container: 1120px;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--text);
    background: var(--bg);
}

a {
    color: inherit;
    text-decoration: none;
}

/* ── Container ───────────────────────────────────────────────── */

.container {
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 24px;
}

/* ── Section title ───────────────────────────────────────────── */

.section__title {
    font-size: clamp(22px, 3vw, 28px);
    font-weight: 800;
    letter-spacing: -0.02em;
    color: var(--dark);
    margin-bottom: 32px;
    text-align: center;
}

/* ── Buttons ─────────────────────────────────────────────────── */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-weight: 600;
    font-size: 14px;
    line-height: 1;
    padding: 10px 20px;
    border-radius: var(--radius);
    cursor: pointer;
    transition: all var(--transition);
    white-space: nowrap;
    border: 2px solid transparent;
    text-decoration: none;
}

.btn--primary {
    background: var(--primary);
    color: var(--white);
    border-color: var(--primary);
}

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

.btn--outline {
    background: transparent;
    color: var(--primary);
    border-color: var(--primary);
}

.btn--outline:hover {
    background: var(--primary);
    color: var(--white);
}

.btn--lg {
    padding: 14px 28px;
    font-size: 15px;
}

.btn--full {
    width: 100%;
}

/* ── Header ──────────────────────────────────────────────────── */

.header {
    background: var(--white);
    border-bottom: 1px solid var(--border);
    padding: 16px 0;
}

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

.header__link {
    font-size: 14px;
    font-weight: 600;
    color: var(--primary);
    transition: color var(--transition);
}

.header__link:hover {
    color: var(--primary-hover);
}

/* ── Logo ────────────────────────────────────────────────────── */

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 18px;
    letter-spacing: -0.02em;
    color: var(--dark);
}

.logo__mark {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    background: var(--primary);
    color: var(--white);
    border-radius: 6px;
    font-weight: 800;
    font-size: 16px;
}

/* ── Hero ────────────────────────────────────────────────────── */

.hero {
    padding: 80px 0 64px;
    background: var(--white);
    border-bottom: 1px solid var(--border);
}

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

.hero__content {
    text-align: left;
}

.hero__label {
    display: inline-block;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--primary);
    background: rgba(0, 87, 255, 0.08);
    padding: 6px 16px;
    border-radius: var(--radius);
    margin-bottom: 24px;
}

.hero__title {
    font-size: clamp(28px, 4vw, 40px);
    font-weight: 800;
    line-height: 1.15;
    letter-spacing: -0.02em;
    color: var(--dark);
    margin-bottom: 20px;
}

.hero__text {
    font-size: 17px;
    color: var(--text-secondary);
    max-width: 480px;
    line-height: 1.6;
    margin-bottom: 32px;
}

.hero__actions {
    display: flex;
    gap: 12px;
    margin-bottom: 24px;
    flex-wrap: wrap;
}

.hero__status {
    display: inline-block;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
    background: rgba(91, 107, 124, 0.08);
    padding: 6px 14px;
    border-radius: 100px;
}

/* ── Mockup ──────────────────────────────────────────────────── */

.mockup {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    overflow: hidden;
}

.mockup__chrome {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 10px 14px;
    background: #f8fafc;
    border-bottom: 1px solid var(--border);
}

.mockup__dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.mockup__dot--red { background: #ef4444; }
.mockup__dot--yellow { background: #f59e0b; }
.mockup__dot--green { background: #22c55e; }

.mockup__title {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-secondary);
    margin-left: 8px;
}

.mockup__body {
    padding: 16px;
}

.mockup__search {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    margin-bottom: 16px;
    color: var(--text-secondary);
    font-size: 14px;
}

.mockup__table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
    margin-bottom: 16px;
}

.mockup__table th {
    text-align: left;
    font-weight: 600;
    color: var(--text-secondary);
    padding: 8px 10px;
    border-bottom: 1px solid var(--border);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.mockup__table td {
    padding: 8px 10px;
    color: var(--text);
    border-bottom: 1px solid rgba(212, 223, 234, 0.5);
}

.mockup__table tbody tr:hover {
    background: rgba(0, 87, 255, 0.03);
}

.mockup__badges {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.mockup__badge {
    display: inline-block;
    font-size: 11px;
    font-weight: 600;
    color: var(--primary);
    background: rgba(0, 87, 255, 0.08);
    padding: 4px 10px;
    border-radius: 100px;
}

/* ── Why ─────────────────────────────────────────────────────── */

.why {
    padding: 64px 0;
    background: var(--white);
    border-bottom: 1px solid var(--border);
}

.why__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.why__col {
    padding: 28px;
    border-radius: var(--radius-lg);
}

.why__col--problem {
    background: #fef2f2;
    border: 1px solid #fecaca;
}

.why__col--solution {
    background: #f0fdf4;
    border: 1px solid #bbf7d0;
}

.why__heading {
    font-size: 15px;
    font-weight: 700;
    margin-bottom: 16px;
}

.why__heading--problem {
    color: #b91c1c;
}

.why__heading--solution {
    color: #15803d;
}

.why__list {
    list-style: none;
}

.why__list li {
    font-size: 14px;
    color: var(--text);
    padding: 6px 0;
    padding-left: 20px;
    position: relative;
}

.why__list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 13px;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--text-secondary);
}

.why__col--solution .why__list li::before {
    background: #22c55e;
}

/* ── Tasks ───────────────────────────────────────────────────── */

.tasks {
    padding: 64px 0;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
}

.tasks__grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
}

.task-card {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 28px 24px;
    text-align: center;
}

.task-card__icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 87, 255, 0.08);
    border-radius: var(--radius);
    color: var(--primary);
    margin: 0 auto 14px;
}

.task-card__title {
    font-size: 14px;
    font-weight: 700;
    color: var(--dark);
    line-height: 1.4;
}

/* ── Features ────────────────────────────────────────────────── */

.features {
    padding: 64px 0;
    background: var(--white);
    border-bottom: 1px solid var(--border);
}

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

.feature-card {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 24px;
}

.feature-card__icon {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 87, 255, 0.08);
    border-radius: var(--radius);
    color: var(--primary);
    margin-bottom: 14px;
}

.feature-card__title {
    font-size: 15px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 6px;
}

.feature-card__text {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* ── Audience ────────────────────────────────────────────────── */

.audience {
    padding: 64px 0;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
}

.audience__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

.audience-card {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 28px 24px;
    text-align: center;
}

.audience-card__icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 87, 255, 0.08);
    border-radius: var(--radius);
    color: var(--primary);
    margin: 0 auto 14px;
}

.audience-card__title {
    font-size: 15px;
    font-weight: 700;
    color: var(--dark);
}

/* ── Trust ───────────────────────────────────────────────────── */

.trust {
    padding: 64px 0;
    background: var(--white);
    border-bottom: 1px solid var(--border);
}

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

.trust__item {
    display: inline-block;
    font-size: 14px;
    font-weight: 600;
    color: var(--primary);
    background: rgba(0, 87, 255, 0.06);
    border: 1px solid rgba(0, 87, 255, 0.15);
    padding: 8px 20px;
    border-radius: 100px;
}

/* ── Access form ─────────────────────────────────────────────── */

.access {
    padding: 64px 0;
    background: var(--white);
}

.access__card {
    max-width: 560px;
    margin: 0 auto;
}

.access__title {
    font-size: 24px;
    font-weight: 800;
    color: var(--dark);
    margin-bottom: 8px;
    letter-spacing: -0.01em;
}

.access__text {
    font-size: 16px;
    color: var(--text-secondary);
    margin-bottom: 32px;
}

/* ── Alerts ──────────────────────────────────────────────────── */

.alert {
    padding: 14px 18px;
    border-radius: var(--radius);
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 24px;
}

.alert--success {
    background: rgba(34, 197, 94, 0.08);
    border: 1px solid rgba(34, 197, 94, 0.25);
    color: #15803d;
}

.alert--error {
    background: rgba(239, 68, 68, 0.08);
    border: 1px solid rgba(239, 68, 68, 0.25);
    color: #b91c1c;
}

/* ── Modal ───────────────────────────────────────────────────── */

.modal-overlay {
    position: fixed;
    inset: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(6, 27, 58, 0.45);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    opacity: 0;
    animation: fadeIn 0.25s ease forwards;
}

.modal {
    position: relative;
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: 0 16px 48px rgba(6, 27, 58, 0.18);
    max-width: 420px;
    width: calc(100% - 48px);
    padding: 40px 32px 32px;
    text-align: center;
    transform: translateY(20px);
    animation: slideUp 0.3s ease 0.1s forwards;
    opacity: 0;
}

.modal__close {
    position: absolute;
    top: 12px;
    right: 14px;
    background: none;
    border: none;
    font-size: 24px;
    line-height: 1;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 4px;
    transition: color var(--transition);
}

.modal__close:hover {
    color: var(--text);
}

.modal__icon {
    margin-bottom: 16px;
}

.modal__title {
    font-size: 20px;
    font-weight: 800;
    color: var(--dark);
    margin-bottom: 8px;
}

.modal__text {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 24px;
}

.modal__btn {
    min-width: 160px;
}

@keyframes fadeIn {
    to { opacity: 1; }
}

@keyframes slideUp {
    to { transform: translateY(0); opacity: 1; }
}

/* ── Form ────────────────────────────────────────────────────── */

.form__hp {
    position: absolute;
    left: -9999px;
    opacity: 0;
    height: 0;
    overflow: hidden;
}

.form__row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 16px;
}

.form__group {
    margin-bottom: 16px;
}

.form__row .form__group {
    margin-bottom: 0;
}

.form__label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 6px;
}

.form__req {
    color: #ef4444;
}

.form__input {
    width: 100%;
    padding: 10px 14px;
    font-size: 14px;
    font-family: inherit;
    color: var(--text);
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    transition: border-color var(--transition);
    outline: none;
}

.form__input:focus {
    border-color: var(--primary);
}

.form__textarea {
    resize: vertical;
    min-height: 80px;
}

.form__group--check {
    margin-top: 8px;
    margin-bottom: 24px;
}

.form__check {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 13px;
    color: var(--text-secondary);
    cursor: pointer;
}

.form__check input[type="checkbox"] {
    width: 16px;
    height: 16px;
    margin-top: 2px;
    flex-shrink: 0;
    accent-color: var(--primary);
}

.form__error {
    font-size: 12px;
    color: #b91c1c;
    margin-top: 4px;
    display: none;
}

.form__group--invalid .form__input {
    border-color: #ef4444;
}

.form__group--invalid .form__error {
    display: block;
}

/* ── Footer ──────────────────────────────────────────────────── */

.footer {
    padding: 24px 0;
    border-top: 1px solid var(--border);
    background: var(--white);
}

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

.footer__links {
    display: flex;
    gap: 24px;
}

.footer__link {
    font-size: 14px;
    color: var(--text-secondary);
    transition: color var(--transition);
}

.footer__link:hover {
    color: var(--primary);
}

/* ── Responsive ──────────────────────────────────────────────── */

@media (max-width: 960px) {
    .hero__inner {
        grid-template-columns: 1fr;
        gap: 36px;
    }

    .hero__content {
        text-align: center;
    }

    .hero__actions {
        justify-content: center;
    }

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

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

@media (max-width: 768px) {
    .hero {
        padding: 56px 0 48px;
    }

    .hero__title {
        font-size: 26px;
    }

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

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

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

    .footer__inner {
        flex-direction: column;
        gap: 12px;
        text-align: center;
    }

    .footer__links {
        flex-direction: column;
        gap: 8px;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 40px 0 36px;
    }

    .hero__title {
        font-size: 22px;
    }

    .hero__text {
        font-size: 15px;
    }

    .hero__actions {
        flex-direction: column;
        align-items: stretch;
    }

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

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

    .access {
        padding: 48px 0;
    }

    .access__title {
        font-size: 20px;
    }
}