/* =====================================================================
   ViaVenturis — main stylesheet
   Mobile-first, vanilla CSS, geen build step.

   Designkeuzes:
   - Palet: aarde-warm (terracotta / oker / mosgroen / papier-cream)
   - Typografie: Special Elite (titels, typewriter) + Crimson Text (serif)
   - Homepage hero: full-bleed 100vh, titel top, postkaarten verspreid
   - Header: transparant op hero, solid + dark text bij scroll
   ===================================================================== */

/* ---------- 1. Custom properties (palet) ---------- */
:root {
    /* Aarde warm — zuid/herfst */
    --color-clay:    #B85A3A;  /* primair accent — terracotta (CTA) */
    --color-ochre:   #D4A24C;  /* highlight — oker */
    --color-moss:    #4F6840;  /* secundair — mosgroen */
    --color-bone:    #F4ECDA;  /* achtergrond — gebroken wit */
    --color-paper:   #EFE3C8;  /* postkaart-papier */
    --color-sand:    #E6D8B8;  /* zachter beige */
    --color-ink:     #3A2E26;  /* tekst — donkerbruin */
    --color-ash:     #6E5F50;  /* secundaire tekst */
    --color-line:    #D8CAA6;  /* lijnen / borders */

    --color-bg:      var(--color-bone);
    --color-fg:      var(--color-ink);
    --color-accent:  var(--color-clay);

    /* Type */
    --font-display: 'Special Elite', 'Courier New', Courier, monospace;
    --font-serif:   'Crimson Text', Georgia, 'Times New Roman', serif;
    --font-sans:    -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;

    /* Spacing scale */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 1rem;
    --space-4: 1.5rem;
    --space-5: 2rem;
    --space-6: 3rem;
    --space-7: 5rem;
    --space-8: 8rem;

    /* Layout */
    --max-w:   1200px;
    --radius:  3px;
    --header-h: 4.5rem;

    --shadow-sm: 0 1px 2px rgba(0,0,0,.08);
    --shadow-md: 0 6px 24px rgba(0,0,0,.18);
    --shadow-card: 0 8px 22px rgba(58,46,38,.22), 0 2px 4px rgba(58,46,38,.12);
    --shadow-card-hover: 0 16px 40px rgba(58,46,38,.28), 0 4px 8px rgba(58,46,38,.18);

    --transition: 220ms ease;
}

/* ---------- 2. Reset / base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }

body {
    margin: 0;
    font-family: var(--font-serif);
    font-size: 1.0625rem;
    line-height: 1.65;
    color: var(--color-fg);
    background: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

img, svg { max-width: 100%; height: auto; display: block; }

a {
    color: var(--color-clay);
    text-decoration: none;
    transition: color var(--transition);
}
a:hover, a:focus { color: var(--color-ink); }

h1, h2, h3, h4 {
    font-family: var(--font-display);
    font-weight: 400;
    line-height: 1.2;
    letter-spacing: 0.05em;
    margin: 0 0 var(--space-3);
    color: var(--color-ink);
    text-transform: uppercase;
}
h1 { font-size: clamp(2rem, 5vw, 3.25rem); letter-spacing: 0.08em; }
h2 { font-size: clamp(1.5rem, 3.5vw, 2.125rem); }
h3 { font-size: 1.25rem; letter-spacing: 0.1em; }

p { margin: 0 0 var(--space-3); }

.container {
    width: 100%;
    max-width: var(--max-w);
    margin: 0 auto;
    padding: 0 var(--space-3);
}

/* ---------- 3. Site header (fixed, transparant op hero) ---------- */
.site-header {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 100;
    padding: var(--space-3) 0;
    background: transparent;
    transition: background var(--transition), padding var(--transition), box-shadow var(--transition);
}
.site-header__inner {
    width: 100%;
    max-width: var(--max-w);
    margin: 0 auto;
    padding: 0 var(--space-3);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-3);
}

.site-header__logo { display: inline-flex; align-items: center; position: relative; }
.site-header__logo-img { height: 2.25rem; width: auto; transition: opacity var(--transition); }
.site-header__logo-img--dark {
    position: absolute;
    top: 0; left: 0;
    opacity: 0;
}
.site-header.is-scrolled .site-header__logo-img--light { opacity: 0; }
.site-header.is-scrolled .site-header__logo-img--dark { opacity: 1; }

/* Bij scroll: solid cream header met donkere tekst */
.site-header.is-scrolled {
    background: rgba(244, 236, 218, 0.96);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    padding: var(--space-2) 0;
    box-shadow: 0 1px 0 rgba(58,46,38,.08), 0 8px 24px rgba(58,46,38,.06);
}

/* Op binnen-pagina's: gebruik de scrolled-look van bij start */
.site-header--solid {
    position: fixed;
    background: rgba(244, 236, 218, 0.96);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    box-shadow: 0 1px 0 rgba(58,46,38,.08), 0 8px 24px rgba(58,46,38,.06);
}
.site-header--solid .site-header__logo-img--light { opacity: 0; }
.site-header--solid .site-header__logo-img--dark { opacity: 1; }

/* Hamburger */
.site-header__hamburger {
    background: none;
    border: 0;
    padding: var(--space-2);
    cursor: pointer;
    display: flex;
    flex-direction: column;
    gap: 4px;
    z-index: 110;
}
.site-header__hamburger span {
    display: block;
    width: 26px;
    height: 2px;
    background: #fff;
    transition: transform var(--transition), opacity var(--transition), background var(--transition);
}
.site-header.is-scrolled .site-header__hamburger span,
.site-header--solid .site-header__hamburger span {
    background: var(--color-ink);
}
.site-header__hamburger[aria-expanded="true"] span:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
}
.site-header__hamburger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.site-header__hamburger[aria-expanded="true"] span:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
}

/* Mobile nav (off-canvas) */
.site-nav {
    position: fixed;
    top: 0; right: 0;
    height: 100dvh;
    width: min(85vw, 320px);
    background: var(--color-ink);
    padding: calc(var(--header-h) + var(--space-4)) var(--space-4) var(--space-4);
    transform: translateX(100%);
    transition: transform var(--transition);
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
    box-shadow: var(--shadow-md);
}
.site-nav.is-open { transform: translateX(0); }

.site-nav__list,
.site-nav__lang {
    list-style: none;
    margin: 0;
    padding: 0;
}
.site-nav__list li { margin-bottom: var(--space-3); }
.site-nav__list a {
    color: var(--color-bone);
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 400;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}
.site-nav__list a:hover { color: var(--color-ochre); }

.site-nav__lang {
    display: flex;
    gap: var(--space-3);
    padding-top: var(--space-3);
    border-top: 1px solid rgba(255,255,255,.15);
    margin-top: auto;
}
.site-nav__lang a {
    color: var(--color-sand);
    font-family: var(--font-display);
    font-size: 0.9375rem;
    letter-spacing: 0.1em;
}
.site-nav__lang a.is-active { color: var(--color-ochre); }

/* Desktop nav — inline op hero */
@media (min-width: 900px) {
    .site-header__hamburger { display: none; }
    .site-nav {
        position: static;
        transform: none;
        height: auto;
        width: auto;
        background: transparent;
        box-shadow: none;
        padding: 0;
        flex-direction: row;
        align-items: center;
        gap: var(--space-5);
    }
    .site-nav__list {
        display: flex;
        gap: var(--space-4);
    }
    .site-nav__list li { margin: 0; }
    .site-nav__list a {
        font-family: var(--font-display);
        font-size: 0.875rem;
        font-weight: 400;
        letter-spacing: 0.15em;
        color: #fff;
        text-shadow: 0 1px 6px rgba(0,0,0,.5);
        transition: color var(--transition);
    }
    .site-nav__list a:hover { color: var(--color-ochre); }

    .site-nav__lang {
        border: 0;
        padding: 0 0 0 var(--space-4);
        margin: 0;
        border-left: 1px solid rgba(255,255,255,.35);
        gap: var(--space-2);
    }
    .site-nav__lang a {
        color: #fff;
        text-shadow: 0 1px 6px rgba(0,0,0,.5);
        font-size: 0.8125rem;
        padding: var(--space-1) var(--space-2);
    }
    .site-nav__lang a.is-active { color: var(--color-ochre); }

    /* Bij scroll: donkere tekst */
    .site-header.is-scrolled .site-nav__list a,
    .site-header.is-scrolled .site-nav__lang a,
    .site-header--solid .site-nav__list a,
    .site-header--solid .site-nav__lang a {
        color: var(--color-ink);
        text-shadow: none;
    }
    .site-header.is-scrolled .site-nav__lang,
    .site-header--solid .site-nav__lang {
        border-left-color: rgba(58,46,38,.2);
    }
    .site-header.is-scrolled .site-nav__list a:hover,
    .site-header--solid .site-nav__list a:hover {
        color: var(--color-clay);
    }
}

/* ---------- 4. Hero — homepage (full-bleed 100vh) ---------- */
.hero {
    position: relative;
    min-height: 100vh;
    min-height: 100dvh;
    color: #fff;
    overflow: hidden;
    isolation: isolate;
}
.hero__bg {
    position: absolute; inset: 0;
    background: var(--color-ink) center/cover no-repeat;
    z-index: -1;
}
.hero__bg::after {
    content: '';
    position: absolute; inset: 0;
    background:
        linear-gradient(180deg,
            rgba(58,46,38,.45) 0%,
            rgba(58,46,38,.15) 22%,
            rgba(58,46,38,.20) 70%,
            rgba(58,46,38,.55) 100%);
}

/* Intro — titel + tagline top-left */
.hero__intro {
    position: absolute;
    top: calc(var(--header-h) + var(--space-4));
    left: var(--space-3);
    z-index: 2;
    text-shadow: 0 2px 14px rgba(0,0,0,.55);
    /* Geen max-width / right: intro shrink-wrapt rond titel + tagline,
       zodat de tagline op één lijn blijft staan. Hero heeft overflow:hidden
       dus eventuele overschot op heel smalle schermen wordt netjes geclipt. */
}
@media (min-width: 700px) {
    .hero__intro {
        left: var(--space-6);
        top: calc(var(--header-h) + var(--space-5));
    }
}
.hero__title {
    font-family: var(--font-display);
    /* Verdubbeld t.o.v. de skeleton: mobiel start kleiner zodat "VIAVENTURIS"
       niet overloopt op smalle schermen; desktop loopt door tot 5.5rem. */
    font-size: clamp(2.5rem, 8vw, 5.5rem);
    letter-spacing: 0.18em;
    line-height: 1;
    margin: 0 0 var(--space-3);
    color: #fff;
    text-transform: none; /* expliciet: toon merknaam als 'ViaVenturis', niet geforceerd uppercase */
    white-space: nowrap;
}
.hero__tagline {
    font-family: var(--font-serif);
    font-style: italic;
    font-size: clamp(1.5rem, 3.6vw, 2.75rem);
    line-height: 1.2;
    margin: 0;
    color: rgba(255,255,255,.95);
    white-space: nowrap;
}

/* ---------- 5. Postcards — desktop verspreid, mobiel carousel ---------- */
.postcards {
    position: absolute;
    inset: 0;
    z-index: 1;
    pointer-events: none; /* alleen kaarten zijn klikbaar */
}
.postcard {
    pointer-events: auto;
    display: block;
    background: var(--color-paper);
    color: var(--color-ink);
    text-decoration: none;
    padding: 1.25rem 1.4rem 1.1rem;
    box-shadow: var(--shadow-card);
    border: 1px solid rgba(58,46,38,.08);
    position: relative;
    transition: transform var(--transition), box-shadow var(--transition);
    will-change: transform;
    /* Subtiele papier-textuur via gradient */
    background-image:
        radial-gradient(circle at 20% 30%, rgba(58,46,38,.025) 0, transparent 60%),
        radial-gradient(circle at 80% 70%, rgba(58,46,38,.03) 0, transparent 55%);
}
.postcard:focus-visible {
    outline: 2px solid var(--color-clay);
    outline-offset: 3px;
}
.postcard__title {
    font-family: var(--font-display);
    font-size: 1.5rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--color-ink);
    margin: 0 0 var(--space-2);
    line-height: 1.1;
}
.postcard__title::after {
    content: '';
    display: block;
    width: 2.5rem;
    height: 1px;
    background: var(--color-clay);
    margin-top: 0.5rem;
}
.postcard__text {
    font-family: var(--font-serif);
    font-size: 1rem;
    line-height: 1.4;
    color: var(--color-ink);
    margin: 0 0 var(--space-3);
    opacity: 0.85;
}
.postcard__arrow {
    display: block;
    text-align: right;
    font-family: var(--font-display);
    font-size: 1.25rem;
    color: var(--color-clay);
    line-height: 1;
}

/* Desktop: 4 kaarten in een rij vlak onder de menu-balk, slordig en speels
   uitgelijnd. Per kaart een basis-positie (--left/--top/--tilt) en een aparte
   jitter (--jitter-x/-y/-tilt) die JS bij elke page load random zet
   tot ±2% / ±2°. De kaart wordt op `--left` gecenterd via translateX(-50%). */
@media (min-width: 900px) {
    /* Titel + tagline staan net onder de rij post-it kaarten.
       --hero-intro-offset is dé knop om de verticale tussenruimte te regelen. */
    .hero__intro {
        top: calc(var(--header-h) + var(--hero-intro-offset, 15rem));
        bottom: auto;
    }
    .postcard {
        position: absolute;
        width: clamp(14rem, 20vw, 16.5rem);
        bottom: auto;
        left: calc(var(--left, 50%) + var(--jitter-x, 0%));
        top:  calc(var(--header-h) + var(--space-3) + var(--top, 0%) + var(--jitter-y, 0%));
        transform: translateX(-50%)
                   rotate(calc(var(--tilt, 0deg) + var(--jitter-tilt, 0deg)));
    }
    .postcard:hover,
    .postcard:focus-visible {
        transform: translateX(-50%) translateY(-6px) rotate(0deg);
        box-shadow: var(--shadow-card-hover);
        z-index: 5;
    }
    /* Bedoelde posities — vier op een rij in nav-volgorde (stories → shop →
       verhuur → over ons), elk lichtjes andere hoogte + tilt. */
    .postcard--gazette { --left: 14%; --top: 0.5rem; --tilt: -3deg; }
    .postcard--shop    { --left: 38%; --top: 2.5rem; --tilt:  2deg; }
    .postcard--verhuur { --left: 62%; --top: 0rem;   --tilt: -2deg; }
    .postcard--over    { --left: 86%; --top: 1.5rem; --tilt:  4deg; }
}

/* Post-its enkel op brede schermen. Onder 900px (tablet + smartphone) laten we
   de kaarten volledig weg — navigatie verloopt dan via het hamburger-menu. */
@media (max-width: 899px) {
    .postcards { display: none; }
}

/* Op desktop is .postcards__track puur structureel: de kaarten zijn los
   absoluut gepositioneerd, dus de track mag geen eigen box vormen. */
@media (min-width: 900px) {
    .postcards__track { display: contents; }
}

/* prefers-reduced-motion: geen hover-transform */
@media (prefers-reduced-motion: reduce) {
    .postcard { transition: none; }
}
@media (prefers-reduced-motion: reduce) and (min-width: 900px) {
    .postcard:hover,
    .postcard:focus-visible {
        transform: translateX(-50%)
                   rotate(calc(var(--tilt, 0deg) + var(--jitter-tilt, 0deg)));
    }
}

/* ---------- 6. Sections ---------- */
.section {
    padding: var(--space-7) 0;
}
.section--tight {
    padding: var(--space-5) 0;
}
.section__head {
    text-align: center;
    margin-bottom: var(--space-5);
}
.section__lead {
    font-family: var(--font-serif);
    font-style: italic;
    font-size: 1.125rem;
    color: var(--color-ash);
    max-width: 60ch;
    margin: 0 auto;
}

/* ---------- 7. Gazette-teaser strip (onder hero, homepage) ---------- */
.gazette-strip {
    background: var(--color-bone);
    padding: var(--space-6) 0 var(--space-7);
}
.gazette-strip__head {
    text-align: center;
    margin-bottom: var(--space-5);
}
.gazette-strip__title {
    font-family: var(--font-display);
    font-size: clamp(1.5rem, 3vw, 2rem);
    letter-spacing: 0.12em;
    color: var(--color-ink);
    margin: 0 0 var(--space-2);
}
.gazette-strip__title::after {
    content: '';
    display: block;
    width: 3rem;
    height: 1px;
    background: var(--color-clay);
    margin: var(--space-3) auto 0;
}
.gazette-strip__placeholder {
    font-family: var(--font-serif);
    font-style: italic;
    color: var(--color-ash);
    margin: 0;
}
.gazette-strip__cards {
    display: grid;
    gap: var(--space-4);
    grid-template-columns: 1fr;
}
@media (min-width: 700px) {
    .gazette-strip__cards { grid-template-columns: repeat(3, 1fr); }
}
.gazette-card {
    background: var(--color-paper);
    box-shadow: var(--shadow-card);
    padding: var(--space-4);
    border: 1px solid rgba(58,46,38,.08);
    min-height: 12rem;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    color: var(--color-ash);
    transform: rotate(var(--tilt, 0deg));
}
.gazette-card:nth-child(1) { --tilt: -1.5deg; }
.gazette-card:nth-child(2) { --tilt:  1deg;   }
.gazette-card:nth-child(3) { --tilt: -1deg;   }
.gazette-card__placeholder {
    font-family: var(--font-display);
    font-size: 0.875rem;
    letter-spacing: 0.15em;
    color: var(--color-clay);
    text-transform: uppercase;
    margin: 0;
}

/* ---------- 8. Page header (binnen-pagina's) ---------- */
.page-head {
    padding-top: calc(var(--header-h) + var(--space-6));
    padding-bottom: var(--space-5);
    background: var(--color-sand);
    text-align: center;
}
.page-head h1 {
    color: var(--color-ink);
}
.page-head__lead {
    font-family: var(--font-serif);
    font-style: italic;
    font-size: 1.25rem;
    color: var(--color-ash);
    max-width: 60ch;
    margin: 0 auto;
}

/* ---------- 9. Coming soon (placeholders shop / verhuur) ---------- */
.coming-soon {
    text-align: center;
    padding: var(--space-7) var(--space-3);
    max-width: 600px;
    margin: 0 auto;
}
.coming-soon__title {
    font-family: var(--font-display);
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    letter-spacing: 0.15em;
    color: var(--color-clay);
}
.coming-soon__text {
    font-size: 1.125rem;
    color: var(--color-ash);
    margin-bottom: var(--space-5);
}

/* ---------- 10. Buttons ---------- */
.btn {
    display: inline-block;
    padding: var(--space-2) var(--space-4);
    background: var(--color-clay);
    color: #fff;
    border: 0;
    border-radius: var(--radius);
    font-family: var(--font-display);
    font-size: 0.9375rem;
    font-weight: 400;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    cursor: pointer;
    transition: background var(--transition), transform var(--transition);
}
.btn:hover, .btn:focus { background: var(--color-ink); color: #fff; transform: translateY(-1px); }
.btn--ghost {
    background: transparent;
    color: var(--color-clay);
    border: 1px solid var(--color-clay);
}
.btn--ghost:hover { background: var(--color-clay); color: #fff; }

/* ---------- 11. Forms (contact) ---------- */
.form {
    max-width: 600px;
    margin: 0 auto;
    display: grid;
    gap: var(--space-3);
}
.form__row { display: grid; gap: var(--space-1); }
.form__label {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-ink);
    font-family: var(--font-serif);
}
.form__input,
.form__textarea {
    font: inherit;
    padding: var(--space-2) var(--space-3);
    border: 1px solid var(--color-line);
    border-radius: var(--radius);
    background: #fff;
    color: var(--color-ink);
    width: 100%;
}
.form__input:focus,
.form__textarea:focus {
    outline: 2px solid var(--color-clay);
    outline-offset: 1px;
    border-color: var(--color-clay);
}
.form__textarea { min-height: 160px; resize: vertical; }
.form__hp {
    position: absolute;
    left: -10000px;
    width: 1px;
    height: 1px;
    overflow: hidden;
}
.form__errors {
    background: #fef2f1;
    border-left: 3px solid var(--color-clay);
    padding: var(--space-3);
    color: #6c2a1f;
    margin-bottom: var(--space-3);
}
.form__errors ul { margin: 0; padding-left: var(--space-4); }

/* ---------- 12. Site footer ---------- */
.site-footer {
    background: var(--color-ink);
    color: var(--color-sand);
    padding: var(--space-6) 0 var(--space-4);
}
.site-footer__inner {
    width: 100%;
    max-width: var(--max-w);
    margin: 0 auto;
    padding: 0 var(--space-3);
    display: grid;
    gap: var(--space-4);
    text-align: center;
}
@media (min-width: 700px) {
    .site-footer__inner {
        grid-template-columns: 1fr auto 1fr;
        align-items: center;
        text-align: left;
    }
    .site-footer__nav { justify-self: center; }
    .site-footer__copy { text-align: right; }
}
.site-footer__logo { height: 2rem; margin: 0 auto var(--space-2); }
@media (min-width: 700px) { .site-footer__logo { margin-left: 0; } }
.site-footer__built {
    font-family: var(--font-serif);
    font-style: italic;
    font-size: 0.9375rem;
    opacity: 0.75;
    margin: 0;
}
.site-footer__nav ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    gap: var(--space-4);
    justify-content: center;
}
.site-footer__nav a {
    color: var(--color-bone);
    font-family: var(--font-display);
    font-size: 0.875rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}
.site-footer__nav a:hover { color: var(--color-ochre); }
.site-footer__copy {
    font-size: 0.8125rem;
    opacity: 0.7;
    margin: 0;
}

/* ---------- 13. A11y ---------- */
.sr-only {
    position: absolute;
    width: 1px; height: 1px;
    padding: 0; margin: -1px;
    overflow: hidden;
    clip: rect(0,0,0,0);
    white-space: nowrap;
    border: 0;
}
body.nav-open { overflow: hidden; }