/* ============ ДБТ для практиков и клиентов — книжный стиль ============ */

/* === Базовые переменные === */
:root {
    --book-bg: #f3efe4;
    --book-paper: #fdfaf3;
    --book-text: #3b3325;
    --book-text-light: #6b5e4a;
    --book-accent: #8b5e3c;
    --book-accent-soft: #c9a87c;
    --book-border: #d9ceb8;
    --book-shadow: rgba(60, 40, 20, 0.08);
    --book-ink: #2c2416;
    --book-serif: 'Georgia', 'Times New Roman', 'Palatino Linotype', 'Book Antiqua', Palatino, serif;
    --book-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}

/* === Базовые стили body === */
body {
    background: var(--book-bg);
    color: var(--book-text);
    font-family: var(--book-serif);
    line-height: 1.75;
    -webkit-font-smoothing: antialiased;
}

/* === Фоновая текстура страницы === */
body::before {
    content: '';
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 0;
    background:
        radial-gradient(ellipse at 50% 0%, rgba(180, 150, 110, 0.12) 0%, transparent 70%),
        radial-gradient(ellipse at 20% 80%, rgba(160, 130, 90, 0.06) 0%, transparent 60%),
        radial-gradient(ellipse at 80% 60%, rgba(170, 140, 100, 0.05) 0%, transparent 60%);
}

/* === Обложка === */
.book-cover {
    position: relative;
    z-index: 1;
    padding: 4.5rem 0 3.5rem;
    text-align: center;
}

.book-cover-inner {
    max-width: 720px;
    margin: 0 auto;
    padding: 2.5rem 2rem;
    background: var(--book-paper);
    border: 1px solid var(--book-border);
    border-radius: 2px;
    box-shadow:
        0 1px 3px var(--book-shadow),
        0 8px 24px rgba(60, 40, 20, 0.06);
    position: relative;
}

/* Орнаментальные линии */
.ornament-top,
.ornament-bottom {
    height: 2px;
    margin: 0 auto;
    background: linear-gradient(
        90deg,
        transparent 0%,
        var(--book-accent-soft) 15%,
        var(--book-accent) 50%,
        var(--book-accent-soft) 85%,
        transparent 100%
    );
    position: relative;
}

.ornament-top {
    width: 70%;
    margin-bottom: 2rem;
}

.ornament-bottom {
    width: 70%;
    margin-top: 2rem;
}

.ornament-top::after,
.ornament-bottom::after {
    content: '❧';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: var(--book-paper);
    padding: 0 0.8rem;
    color: var(--book-accent);
    font-size: 1.1rem;
}

/* Заголовок книги */
.book-title {
    font-family: var(--book-serif);
    font-size: 2.6rem;
    font-weight: 400;
    color: var(--book-ink);
    letter-spacing: 0.04em;
    line-height: 1.3;
    margin-bottom: 1rem;
}

.book-subtitle {
    font-family: var(--book-sans);
    font-size: 1.05rem;
    color: var(--book-text-light);
    line-height: 1.65;
    max-width: 560px;
    margin: 0 auto;
    font-style: italic;
}

/* === Дисклеймер === */
.disclaimer-section {
    position: relative;
    z-index: 1;
    padding: 0 0 1.5rem;
}

.disclaimer-card {
    max-width: 720px;
    margin: 0 auto;
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1rem 1.3rem;
    background: #faf6ed;
    border: 1px solid #e5d9c0;
    border-left: 4px solid var(--book-accent-soft);
    border-radius: 2px;
    font-family: var(--book-sans);
    font-size: 0.88rem;
    color: var(--book-text-light);
    line-height: 1.6;
}

.disclaimer-icon {
    flex-shrink: 0;
    color: var(--book-accent-soft);
    font-size: 1.25rem;
    margin-top: 0.1rem;
}

/* === Секция ресурсов === */
.resources-section {
    position: relative;
    z-index: 1;
    padding: 0.5rem 0 3rem;
}

/* === Карточка ресурса === */
.resource-card {
    max-width: 720px;
    margin: 0 auto 1.6rem;
    display: flex;
    gap: 1.5rem;
    padding: 1.6rem 1.8rem;
    background: var(--book-paper);
    border: 1px solid var(--book-border);
    border-radius: 2px;
    box-shadow: 0 1px 3px var(--book-shadow);
    transition: box-shadow 0.25s ease, transform 0.2s ease;
}

.resource-card:hover {
    box-shadow: 0 4px 16px rgba(60, 40, 20, 0.10);
    transform: translateY(-1px);
}

.resource-number {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--book-serif);
    font-size: 1.5rem;
    color: var(--book-accent);
    border: 2px solid var(--book-accent-soft);
    border-radius: 50%;
    background: #fdfaf3;
    font-weight: 400;
}

.resource-body {
    flex: 1;
}

.resource-title {
    font-family: var(--book-serif);
    font-size: 1.2rem;
    font-weight: 400;
    line-height: 1.4;
    margin-bottom: 0.5rem;
    color: var(--book-ink);
}

.resource-title a {
    color: var(--book-ink);
    text-decoration: none;
    border-bottom: 1px dotted var(--book-accent-soft);
    transition: border-color 0.2s, color 0.2s;
}

.resource-title a:hover {
    color: var(--book-accent);
    border-bottom-color: var(--book-accent);
    text-decoration: none;
}

.resource-desc {
    font-family: var(--book-sans);
    font-size: 0.93rem;
    color: var(--book-text-light);
    line-height: 1.65;
    margin-bottom: 0.6rem;
}

.resource-link {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    font-family: var(--book-sans);
    font-size: 0.85rem;
    color: var(--book-accent);
    text-decoration: none;
    font-weight: 500;
    transition: gap 0.2s, color 0.2s;
}

.resource-link:hover {
    color: #6b3f20;
    gap: 0.55rem;
    text-decoration: none;
}

.resource-link i {
    font-size: 0.8rem;
    transition: transform 0.2s;
}

.resource-link:hover i {
    transform: translateX(2px);
}

/* === Цель проекта === */
.goal-section {
    position: relative;
    z-index: 1;
    padding: 0 0 1.5rem;
}

.goal-card {
    max-width: 720px;
    margin: 0 auto;
    padding: 1.4rem 1.8rem;
    background: var(--book-paper);
    border: 1px solid var(--book-border);
    border-radius: 2px;
    box-shadow: 0 1px 3px var(--book-shadow);
    text-align: center;
}

.goal-text {
    font-family: var(--book-serif);
    font-size: 1.05rem;
    color: var(--book-text);
    line-height: 1.75;
    margin: 0;
}

/* === Заголовки секций === */
.section-heading {
    font-family: var(--book-serif);
    font-size: 1.5rem;
    font-weight: 400;
    color: var(--book-ink);
    text-align: center;
    max-width: 720px;
    margin: 0 auto 1.8rem;
    padding-bottom: 0.6rem;
    border-bottom: 1px solid var(--book-border);
    letter-spacing: 0.03em;
}

.section-heading-en {
    border-bottom-color: #b8c4d0;
    color: #2c3e50;
}

/* === Английские карточки (вариант) === */
.resource-card-en {
    border-left: 3px solid #b8c4d0;
}

.resource-number-en {
    color: #4a6274;
    border-color: #b8c4d0;
    background: #f6f8fa;
}

/* === Футер === */
.book-footer {
    position: relative;
    z-index: 1;
    text-align: center;
    padding: 2.5rem 0 3rem;
    font-family: var(--book-sans);
    color: var(--book-text-light);
}

.footer-ornament {
    width: 120px;
    height: 2px;
    margin: 0 auto 1.5rem;
    background: linear-gradient(
        90deg,
        transparent 0%,
        var(--book-accent-soft) 30%,
        var(--book-accent) 50%,
        var(--book-accent-soft) 70%,
        transparent 100%
    );
}

.footer-disclaimer {
    max-width: 640px;
    margin: 0 auto 1rem;
    font-size: 0.82rem;
    line-height: 1.6;
}

.footer-copy {
    font-size: 0.8rem;
    color: #a3947a;
}

/* === Адаптив === */
@media (max-width: 767.98px) {
    .book-cover {
        padding: 2.5rem 0 2rem;
    }

    .book-cover-inner {
        padding: 1.8rem 1.2rem;
        margin: 0 0.5rem;
    }

    .book-title {
        font-size: 1.8rem;
    }

    .book-subtitle {
        font-size: 0.92rem;
    }

    .ornament-top,
    .ornament-bottom {
        width: 85%;
    }

    .resource-card {
        flex-direction: column;
        gap: 0.8rem;
        padding: 1.3rem 1.2rem;
        margin-left: 0.5rem;
        margin-right: 0.5rem;
    }

    .resource-number {
        width: 40px;
        height: 40px;
        font-size: 1.25rem;
    }

    .resource-title {
        font-size: 1.05rem;
    }

    .disclaimer-card {
        margin-left: 0.5rem;
        margin-right: 0.5rem;
        padding: 0.9rem 1rem;
    }

    .goal-card {
        margin-left: 0.5rem;
        margin-right: 0.5rem;
        padding: 1.1rem 1.2rem;
    }

    .goal-text {
        font-size: 0.95rem;
    }

    .section-heading {
        font-size: 1.25rem;
        margin-left: 0.5rem;
        margin-right: 0.5rem;
    }

    .book-footer {
        padding: 2rem 0 2.5rem;
    }
}

@media (max-width: 575.98px) {
    .book-title {
        font-size: 1.5rem;
    }

    .book-cover-inner {
        padding: 1.4rem 1rem;
    }

    .resource-card {
        padding: 1.1rem 1rem;
    }

    .resource-title {
        font-size: 0.98rem;
    }

    .resource-desc {
        font-size: 0.87rem;
    }

    .goal-text {
        font-size: 0.88rem;
    }

    .section-heading {
        font-size: 1.15rem;
    }
}