/* =========================================================
   BILKA LANDING — design tokens
   Color:  bg #EEF1F3 | bg-alt #E3E8EC | ink #212830 | ink-soft #58636F
           fur-deep #3E4C5C | fur-mid #6E7F91 | accent (amber) #C08A4E
   Type:   Fraunces (display) / Inter (body) / IBM Plex Mono (data)
========================================================= */

:root {
    --bg: #EEF1F3;
    --bg-alt: #E3E8EC;
    --ink: #212830;
    --ink-soft: #58636F;
    --fur-deep: #3E4C5C;
    --fur-mid: #6E7F91;
    --fur-light: #A9B7C3;
    --accent: #C08A4E;
    --white: #FFFFFF;
    --line: rgba(33, 40, 48, 0.12);

    --font-display: "Fraunces", serif;
    --font-body: "Inter", sans-serif;
    --font-mono: "IBM Plex Mono", monospace;

    --wrap: 1120px;
    --radius: 20px;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    * {
        animation-duration: 0.001ms !important;
        transition-duration: 0.001ms !important;
    }
}

body {
    margin: 0;
    background: var(--bg);
    color: var(--ink);
    font-family: var(--font-body);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

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

a {
    color: inherit;
}

.wrap {
    max-width: var(--wrap);
    margin: 0 auto;
    padding: 0 28px;
}

/* subtle fur-noise texture overlay across whole page */
.fur-noise {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 0;
    opacity: 0.035;
    background-image: repeating-linear-gradient(115deg, #000 0px, #000 1px, transparent 1px, transparent 5px);
}

/* =========================
   HEADER
========================= */
.site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    background: rgba(238, 241, 243, 0.85);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--line);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 76px;
}

.brand {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 1.15rem;
    color: var(--fur-deep);
}

.brand-mark {
    width: 34px;
    height: 34px;
    border-radius: 50%;
    background: linear-gradient(145deg, var(--fur-mid), var(--fur-deep));
    color: var(--white);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
}

.nav {
    display: flex;
    gap: 32px;
}

.nav a {
    text-decoration: none;
    font-size: 0.95rem;
    color: var(--ink-soft);
    position: relative;
    padding: 4px 0;
    transition: color 0.2s ease;
}

.nav a:hover,
.nav a:focus-visible {
    color: var(--fur-deep);
}

.nav a::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -4px;
    width: 0;
    height: 2px;
    background: var(--accent);
    transition: width 0.25s ease;
}

.nav a:hover::after,
.nav a:focus-visible::after {
    width: 100%;
}

.nav-toggle {
    display: none;
    width: 40px;
    height: 40px;
    border: none;
    background: transparent;
    cursor: pointer;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
}

.nav-toggle span {
    width: 22px;
    height: 2px;
    background: var(--ink);
    transition: transform 0.25s ease, opacity 0.25s ease;
}

.nav-toggle.is-open span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.nav-toggle.is-open span:nth-child(2) {
    opacity: 0;
}

.nav-toggle.is-open span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* =========================
   BUTTONS
========================= */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 13px 26px;
    border-radius: 999px;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    transition: transform 0.2s ease, background 0.2s ease, border-color 0.2s ease;
}

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

.btn-primary:hover {
    background: var(--ink);
    transform: translateY(-2px);
}

.btn-ghost {
    border: 1.5px solid var(--line);
    color: var(--ink);
    background: transparent;
}

.btn-ghost:hover {
    border-color: var(--fur-deep);
    transform: translateY(-2px);
}

.btn-small {
    padding: 8px 18px;
    font-size: 0.85rem;
}

/* =========================
   HERO
========================= */
.hero {
    position: relative;
    padding-top: 76px;
    overflow: hidden;
}

.hero-inner {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 56px;
    align-items: center;
    padding-top: 72px;
    padding-bottom: 96px;
}

.eyebrow,
.section-eyebrow {
    font-family: var(--font-mono);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-size: 0.75rem;
    color: var(--accent);
    margin: 0 0 18px;
}

.hero-text h1 {
    font-family: var(--font-display);
    font-size: clamp(3.2rem, 8vw, 5.6rem);
    line-height: 0.95;
    margin: 0 0 20px;
    color: var(--fur-deep);
    font-weight: 600;
}

.hero-sub {
    font-size: 1.1rem;
    color: var(--ink-soft);
    max-width: 46ch;
    margin: 0 0 34px;
}

.hero-cta {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.hero-media {
    position: relative;
}

.hero-frame {
    border-radius: var(--radius);
    overflow: hidden;
    aspect-ratio: 4 / 5;
    background: var(--bg-alt);
    box-shadow: 0 30px 60px -20px rgba(62, 76, 92, 0.35);
}

.hero-frame img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-stat-card {
    position: absolute;
    bottom: -26px;
    left: -26px;
    background: var(--white);
    border-radius: 16px;
    padding: 18px 22px;
    box-shadow: 0 18px 40px -16px rgba(33, 40, 48, 0.3);
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.stat-num {
    font-family: var(--font-display);
    font-size: 1.8rem;
    color: var(--fur-deep);
    font-weight: 600;
}

.stat-label {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--ink-soft);
    letter-spacing: 0.03em;
}

/* signature element: layered fur-strand divider */
.fur-divider {
    height: 64px;
    width: 100%;
    background:
        repeating-linear-gradient(100deg,
            var(--fur-deep) 0px,
            var(--fur-deep) 2px,
            transparent 2px,
            transparent 14px);
    -webkit-mask-image: linear-gradient(to bottom, black, transparent);
    mask-image: linear-gradient(to bottom, black, transparent);
    opacity: 0.18;
}

/* =========================
   SECTIONS (shared)
========================= */
.section {
    padding: 96px 0;
}

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

.section h2 {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4vw, 2.8rem);
    font-weight: 600;
    color: var(--fur-deep);
    margin: 0 0 28px;
    max-width: 20ch;
}

.section-lead {
    font-size: 1.05rem;
    color: var(--ink-soft);
    max-width: 68ch;
    margin: -8px 0 40px;
}

.cols-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
}

.cols-2.align-center {
    align-items: center;
}

.cols-2 p {
    color: var(--ink-soft);
}

/* timeline */
.timeline {
    margin-top: 56px;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
    border-top: 1px solid var(--line);
    padding-top: 32px;
}

.timeline-item {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.timeline-year {
    font-family: var(--font-mono);
    color: var(--accent);
    font-size: 0.95rem;
    font-weight: 500;
}

.timeline-item p {
    margin: 0;
    color: var(--ink-soft);
    font-size: 0.95rem;
}

/* standard section */
.standard-grid {
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    gap: 48px;
    align-items: center;
    margin-bottom: 56px;
}

.standard-media {
    border-radius: var(--radius);
    overflow: hidden;
    aspect-ratio: 4/3;
}

.standard-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.standard-facts {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.fact {
    background: var(--white);
    border-radius: 14px;
    padding: 18px 20px;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.fact-label {
    font-size: 0.78rem;
    color: var(--ink-soft);
}

.fact-value {
    font-family: var(--font-mono);
    font-size: 1.05rem;
    color: var(--fur-deep);
    font-weight: 500;
}

.detail-list {
    display: grid;
    gap: 28px;
}

.detail-row {
    border-top: 1px solid var(--line);
    padding-top: 24px;
}

.detail-row h3 {
    font-family: var(--font-display);
    font-size: 1.3rem;
    margin: 0 0 10px;
    color: var(--ink);
}

.detail-row p {
    margin: 0;
    color: var(--ink-soft);
    max-width: 72ch;
}

/* character section */
.check-list {
    list-style: none;
    padding: 0;
    margin: 24px 0;
    display: grid;
    gap: 14px;
}

.check-list li {
    position: relative;
    padding-left: 28px;
    color: var(--ink-soft);
}

.check-list li::before {
    content: "✓";
    position: absolute;
    left: 0;
    top: 0;
    color: var(--accent);
    font-weight: 700;
}

.note {
    background: var(--bg-alt);
    border-left: 3px solid var(--accent);
    padding: 14px 18px;
    border-radius: 0 12px 12px 0;
    font-size: 0.95rem;
    color: var(--ink-soft);
}

.portrait-card {
    border-radius: var(--radius);
    overflow: hidden;
    aspect-ratio: 4/5;
}

.portrait-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* care grid */
.care-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.care-card {
    background: var(--white);
    border-radius: 16px;
    padding: 26px;
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.care-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 40px -24px rgba(33, 40, 48, 0.4);
}

.care-card h3 {
    font-family: var(--font-display);
    font-size: 1.15rem;
    margin: 0 0 10px;
    color: var(--fur-deep);
}

.care-card p {
    margin: 0;
    color: var(--ink-soft);
    font-size: 0.95rem;
}

/* breeding / pros-cons */
.pros-cons {
    display: grid;
    gap: 20px;
}

.pc-block {
    border-radius: 16px;
    padding: 24px 26px;
}

.pc-pros {
    background: rgba(110, 127, 145, 0.12);
}

.pc-cons {
    background: rgba(192, 138, 78, 0.12);
}

.pc-block h3 {
    font-family: var(--font-display);
    font-size: 1.1rem;
    margin: 0 0 14px;
    color: var(--ink);
}

.pc-block ul {
    margin: 0;
    padding-left: 20px;
    color: var(--ink-soft);
    display: grid;
    gap: 8px;
    font-size: 0.95rem;
}

/* FAQ */
.faq-list {
    display: grid;
    gap: 12px;
    max-width: 760px;
}

.faq-item {
    background: var(--white);
    border-radius: 14px;
    overflow: hidden;
}

.faq-question {
    width: 100%;
    text-align: left;
    background: none;
    border: none;
    padding: 20px 24px;
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 600;
    color: var(--ink);
    display: flex;
    align-items: center;
    justify-content: space-between;
    cursor: pointer;
}

.faq-icon {
    font-family: var(--font-mono);
    color: var(--accent);
    font-size: 1.2rem;
    transition: transform 0.25s ease;
}

.faq-item.is-open .faq-icon {
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
    padding: 0 24px;
}

.faq-item.is-open .faq-answer {
    padding: 0 24px 22px;
}

.faq-answer p {
    margin: 0;
    color: var(--ink-soft);
}

/* footer */
.footer {
    background: var(--fur-deep);
    color: var(--white);
    padding: 48px 0;
}

.footer-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 20px;
}

.footer .brand-mark {
    background: var(--white);
    color: var(--fur-deep);
}

.footer-inner>div:first-child {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 1.1rem;
}

.footer-inner p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9rem;
    margin: 0;
}

.footer .btn-ghost {
    border-color: rgba(255, 255, 255, 0.3);
    color: var(--white);
}

.footer .btn-ghost:hover {
    border-color: var(--white);
}

/* reveal-on-scroll utility (toggled via JS) */
.reveal {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.is-visible {
    opacity: 1;
    transform: translateY(0);
}

/* =========================================================
   RESPONSIVE
========================================================= */

/* Tablet */
@media (max-width: 900px) {
    .hero-inner {
        grid-template-columns: 1fr;
        padding-top: 48px;
        padding-bottom: 72px;
        gap: 40px;
    }

    .hero-media {
        order: -1;
        max-width: 420px;
        margin: 0 auto;
    }

    .cols-2 {
        grid-template-columns: 1fr;
        gap: 32px;
    }

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

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

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

    .section {
        padding: 72px 0;
    }
}

/* Mobile */
@media (max-width: 640px) {
    .wrap {
        padding: 0 20px;
    }

    .nav {
        position: absolute;
        top: 76px;
        left: 0;
        right: 0;
        background: var(--bg);
        border-bottom: 1px solid var(--line);
        flex-direction: column;
        gap: 0;
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.3s ease;
    }

    .nav.is-open {
        max-height: 400px;
    }

    .nav a {
        padding: 16px 20px;
        border-bottom: 1px solid var(--line);
    }

    .nav a::after {
        display: none;
    }

    .nav-toggle {
        display: flex;
    }

    .hero-text h1 {
        font-size: 3rem;
    }

    .hero-stat-card {
        position: static;
        margin-top: -30px;
        margin-left: 16px;
        width: fit-content;
    }

    .hero-frame {
        aspect-ratio: 1/1;
    }

    .timeline,
    .care-grid,
    .standard-facts {
        grid-template-columns: 1fr;
    }

    .section {
        padding: 56px 0;
    }

    .section h2 {
        max-width: none;
    }

    .footer-inner {
        flex-direction: column;
        align-items: flex-start;
        text-align: left;
    }
}