:root {
    --bg: #f7f4ef;
    --bg-alt: #efeae1;
    --surface: #ffffff;
    --text: #1c1a17;
    --text-muted: #5c564d;
    --accent: #9a7b4f;
    --accent-dark: #6f5634;
    --border: rgba(28, 26, 23, 0.1);
    --shadow: 0 18px 50px rgba(28, 26, 23, 0.08);
    --radius: 16px;
    --font-serif: "Cormorant Garamond", Georgia, serif;
    --font-sans: "Manrope", system-ui, sans-serif;
    --header-h: 72px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.65;
    color: var(--text);
    background: var(--bg);
}

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

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

.container {
    width: min(1140px, calc(100% - 2rem));
    margin-inline: auto;
}

.narrow {
    width: min(760px, calc(100% - 2rem));
    margin-inline: auto;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(247, 244, 239, 0.92);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: var(--header-h);
    gap: 1rem;
}

.logo {
    font-family: var(--font-serif);
    font-size: 1.35rem;
    font-weight: 600;
    letter-spacing: 0.02em;
}

.nav {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    font-size: 0.92rem;
    font-weight: 500;
}

.nav a:hover {
    color: var(--accent-dark);
}

.nav-cta {
    padding: 0.55rem 1rem;
    border-radius: 999px;
    background: var(--text);
    color: var(--bg) !important;
}

.nav-cta:hover {
    background: var(--accent-dark);
}

.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 0.5rem;
    border: 0;
    background: transparent;
    cursor: pointer;
}

.menu-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--text);
}

.mobile-nav {
    display: none;
    flex-direction: column;
    padding: 0 1rem 1rem;
    gap: 0.75rem;
    border-bottom: 1px solid var(--border);
    background: var(--bg);
}

.mobile-nav[hidden] {
    display: none !important;
}

.mobile-nav.is-open {
    display: flex;
}

.hero {
    padding: 3rem 0 4rem;
    background: linear-gradient(180deg, var(--surface) 0%, var(--bg) 100%);
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.05fr 0.95fr;
    gap: 2.5rem;
    align-items: center;
}

.badge {
    display: inline-block;
    margin: 0 0 1rem;
    padding: 0.35rem 0.85rem;
    border-radius: 999px;
    background: var(--bg-alt);
    color: var(--accent-dark);
    font-size: 0.82rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.hero h1 {
    margin: 0 0 0.75rem;
    font-family: var(--font-serif);
    font-size: clamp(2.5rem, 5vw, 3.75rem);
    font-weight: 600;
    line-height: 1.05;
}

.hero-subtitle {
    margin: 0 0 0.5rem;
    font-size: 1.05rem;
    color: var(--text-muted);
    max-width: 34rem;
}

.hero-city {
    margin: 0 0 1.75rem;
    font-weight: 600;
    color: var(--accent-dark);
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
}

.stat {
    padding: 1rem 1.1rem;
    border-radius: var(--radius);
    background: var(--surface);
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
}

.stat-value {
    display: block;
    font-family: var(--font-serif);
    font-size: 2rem;
    font-weight: 700;
    color: var(--accent-dark);
    line-height: 1.1;
}

.stat-label {
    display: block;
    margin-top: 0.35rem;
    font-size: 0.82rem;
    color: var(--text-muted);
}

.hero-photo {
    aspect-ratio: 4 / 5;
    border-radius: calc(var(--radius) + 8px);
    overflow: hidden;
    background:
        linear-gradient(145deg, rgba(154, 123, 79, 0.35), rgba(28, 26, 23, 0.75)),
        url("../images/hero-placeholder.svg") center / cover no-repeat;
    box-shadow: var(--shadow);
    display: grid;
    place-items: center;
}

.hero-photo-placeholder {
    font-family: var(--font-serif);
    font-size: 4rem;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.85);
    letter-spacing: 0.08em;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.85rem 1.5rem;
    border-radius: 999px;
    font-weight: 600;
    border: 1px solid transparent;
    transition: transform 0.15s ease, background 0.15s ease;
}

.btn:hover {
    transform: translateY(-1px);
}

.btn-primary {
    background: var(--accent);
    color: #fff;
}

.btn-primary:hover {
    background: var(--accent-dark);
}

.section {
    padding: 4rem 0;
}

.section:nth-child(even) {
    background: var(--bg-alt);
}

.section-head {
    text-align: center;
    margin-bottom: 2.5rem;
}

.section-head.left {
    text-align: left;
}

.section-head h2 {
    margin: 0 0 0.5rem;
    font-family: var(--font-serif);
    font-size: clamp(1.85rem, 3vw, 2.5rem);
    font-weight: 600;
}

.section-head p {
    margin: 0;
    color: var(--text-muted);
}

.intro h2 {
    font-family: var(--font-serif);
    font-size: clamp(1.6rem, 3vw, 2.2rem);
    text-align: center;
    margin: 0 0 1rem;
}

.lead {
    text-align: center;
    font-size: 1.05rem;
    color: var(--text-muted);
    margin: 0;
}

.problems-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.25rem;
}

.problem-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.35rem 1.4rem;
    box-shadow: var(--shadow);
}

.problem-card h3 {
    margin: 0 0 0.85rem;
    font-size: 1.05rem;
    font-family: var(--font-serif);
    font-weight: 600;
}

.problem-card ul {
    margin: 0;
    padding-left: 1.1rem;
    color: var(--text-muted);
    font-size: 0.94rem;
}

.problem-card li + li {
    margin-top: 0.35rem;
}

.audience-grid,
.process-cards {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.25rem;
}

.audience-card,
.process-card {
    background: var(--surface);
    border-radius: var(--radius);
    padding: 1.5rem;
    border: 1px solid var(--border);
}

.audience-card h3,
.process-card h3 {
    margin: 0 0 0.75rem;
    font-family: var(--font-serif);
    font-size: 1.35rem;
}

.duration {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--accent-dark);
    margin: 0 0 0.65rem;
}

.value-grid {
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    gap: 2rem;
    align-items: start;
}

.value-quote blockquote {
    margin: 1rem 0 0;
    padding: 1.5rem;
    border-left: 4px solid var(--accent);
    background: var(--surface);
    border-radius: 0 var(--radius) var(--radius) 0;
}

.value-quote blockquote p {
    margin: 0;
    font-family: var(--font-serif);
    font-size: 1.6rem;
    line-height: 1.3;
}

.value-quote footer {
    margin-top: 0.75rem;
    color: var(--text-muted);
    font-size: 0.95rem;
}

.value-text h3 {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    margin-top: 0;
}

.stages-list {
    display: grid;
    gap: 1.25rem;
}

.stage {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 1.25rem;
    padding: 1.5rem;
    background: var(--surface);
    border-radius: var(--radius);
    border: 1px solid var(--border);
}

.stage-num {
    width: 3rem;
    height: 3rem;
    border-radius: 50%;
    display: grid;
    place-items: center;
    font-family: var(--font-serif);
    font-size: 1.35rem;
    font-weight: 700;
    color: #fff;
    background: var(--accent);
}

.stage-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    gap: 0.75rem;
    margin-bottom: 0.5rem;
}

.stage-meta h3 {
    margin: 0;
    font-family: var(--font-serif);
    font-size: 1.35rem;
}

.results-columns {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

.results-columns ul {
    margin: 0;
    padding-left: 1.2rem;
    color: var(--text-muted);
}

.results-columns li + li {
    margin-top: 0.5rem;
}

.research-stats {
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
}

.research-stat {
    text-align: center;
    padding: 1rem;
    background: var(--surface);
    border-radius: var(--radius);
    border: 1px solid var(--border);
}

.research-value {
    display: block;
    font-family: var(--font-serif);
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--accent-dark);
}

.research-label {
    display: block;
    margin-top: 0.35rem;
    font-size: 0.82rem;
    color: var(--text-muted);
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1rem;
}

.benefit {
    padding: 1.25rem;
    background: var(--surface);
    border-radius: var(--radius);
    border: 1px solid var(--border);
}

.benefit h3 {
    margin: 0 0 0.5rem;
    font-size: 0.95rem;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--accent-dark);
}

.about-grid {
    display: grid;
    grid-template-columns: 0.85fr 1.15fr;
    gap: 2.5rem;
    align-items: center;
}

.about-photo {
    aspect-ratio: 1;
    border-radius: 50%;
    max-width: 320px;
    margin-inline: auto;
    background: linear-gradient(145deg, var(--accent), var(--accent-dark));
    display: grid;
    place-items: center;
    color: #fff;
    font-family: var(--font-serif);
    font-size: 3rem;
    font-weight: 600;
}

.about-name {
    font-family: var(--font-serif);
    font-size: 1.75rem;
    margin: 0 0 1rem;
}

.about-facts {
    margin: 0 0 1rem;
    padding-left: 1.2rem;
}

.about-principle {
    font-weight: 600;
    color: var(--accent-dark);
}

.certificates-placeholder {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    margin-top: 1.5rem;
}

.cert-card {
    aspect-ratio: 4 / 3;
    border-radius: var(--radius);
    border: 1px dashed var(--border);
    background: var(--surface);
    display: grid;
    place-items: center;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.faq-list {
    display: grid;
    gap: 0.75rem;
}

.faq-item {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 0.25rem 1rem 0.75rem;
}

.faq-item summary {
    cursor: pointer;
    font-weight: 600;
    padding: 0.75rem 0;
    list-style: none;
}

.faq-item summary::-webkit-details-marker {
    display: none;
}

.faq-item p {
    margin: 0;
    color: var(--text-muted);
}

.contact-box {
    text-align: center;
    padding: 2.5rem 1.5rem;
    background: var(--text);
    color: var(--bg);
    border-radius: calc(var(--radius) + 4px);
}

.contact-box h2 {
    font-family: var(--font-serif);
    margin-top: 0;
}

.contact-email {
    display: inline-block;
    margin-top: 1rem;
    font-size: 1.25rem;
    font-weight: 600;
    border-bottom: 1px solid rgba(255, 255, 255, 0.35);
}

.contact-email:hover {
    color: #fff;
    border-color: #fff;
}

.contact-city {
    margin-top: 1rem;
    opacity: 0.75;
}

.site-footer {
    padding: 1.5rem 0 2rem;
    text-align: center;
    font-size: 0.9rem;
    color: var(--text-muted);
}

@media (max-width: 960px) {
    .hero-grid,
    .value-grid,
    .about-grid {
        grid-template-columns: 1fr;
    }

    .problems-grid,
    .audience-grid,
    .process-cards,
    .benefits-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .research-stats {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }

    .nav {
        display: none;
    }

    .menu-toggle {
        display: flex;
    }
}

@media (max-width: 640px) {
    .problems-grid,
    .audience-grid,
    .process-cards,
    .benefits-grid,
    .results-columns,
    .certificates-placeholder,
    .research-stats {
        grid-template-columns: 1fr;
    }

    .hero-stats {
        grid-template-columns: 1fr;
    }
}