/* ============================================================
   xity.one — Scandinavian Craft Studio
   Palette: #f4efe8 Birch, #e0d5c4 Warm Stone, #b87333 Copper,
            #c4724e Terracotta, #3a302a Charred Oak,
            #6b4e37 Leather Brown, #7a9a7a Patina Green
   Fonts: Barlow Condensed / Source Serif 4 / DM Mono
   ============================================================ */

:root {
    --birch: #f4efe8;
    --warm-stone: #e0d5c4;
    --copper: #b87333;
    --terracotta: #c4724e;
    --charred-oak: #3a302a;
    --leather-brown: #6b4e37;
    --patina-green: #7a9a7a;

    --font-heading: "Barlow Condensed", "Inter", sans-serif;
    --font-body: "Source Serif 4", "Lora", serif;
    --font-mono: "DM Mono", "Space Mono", monospace;
}

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

html {
    scroll-behavior: smooth;
    background: var(--birch);
}

body {
    font-family: var(--font-body);
    font-weight: 400;
    font-size: 1rem;
    line-height: 1.75;
    color: var(--charred-oak);
    background: var(--birch);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

/* ---- Page reveal container ---- */
.page-reveal {
    opacity: 0;
    transition: opacity 800ms ease-out;
}
.page-reveal.is-revealed {
    opacity: 1;
}

/* ------------------------------------------------------------
   MATERIAL HEADER
   ------------------------------------------------------------ */
.material-header {
    position: relative;
    min-height: 80vh;
    padding: 4rem 6vw 3rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    overflow: hidden;
    background: var(--birch);
    border-bottom: 1px solid rgba(184, 115, 51, 0.15);
}

.header-texture {
    position: absolute;
    inset: 0;
    pointer-events: none;
    background-image:
        repeating-linear-gradient(
            90deg,
            transparent 0,
            transparent 39px,
            rgba(224, 213, 196, 0.55) 39px,
            rgba(224, 213, 196, 0.55) 40px
        ),
        radial-gradient(ellipse at 30% 20%, rgba(184, 115, 51, 0.04), transparent 60%),
        radial-gradient(ellipse at 75% 70%, rgba(107, 78, 55, 0.05), transparent 70%);
    opacity: 0.9;
}

.header-meta,
.header-bottom-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
    z-index: 2;
}

.meta-label {
    font-family: var(--font-mono);
    font-weight: 400;
    font-size: 0.72rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--copper);
}
.meta-label.meta-right {
    text-align: right;
    color: var(--leather-brown);
}

.header-content {
    position: relative;
    z-index: 2;
    text-align: center;
    padding: 2rem 0 1rem;
}

.site-title {
    font-family: var(--font-heading);
    font-weight: 500;
    font-size: 6vw;
    line-height: 1;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--charred-oak);
    opacity: 0;
    transform: translateY(18px);
    transition: opacity 1.2s ease-out 2.6s, transform 1.2s ease-out 2.6s;
}
.is-revealed .site-title {
    opacity: 1;
    transform: translateY(0);
}

.site-subtitle {
    font-family: var(--font-body);
    font-weight: 400;
    font-style: italic;
    font-size: 1.05rem;
    line-height: 1.7;
    color: var(--leather-brown);
    max-width: 640px;
    margin: 1.2rem auto 0;
    opacity: 0;
    transform: translateY(12px);
    transition: opacity 1.2s ease-out 3.0s, transform 1.2s ease-out 3.0s;
}
.is-revealed .site-subtitle {
    opacity: 1;
    transform: translateY(0);
}

.header-wave {
    position: relative;
    z-index: 2;
    width: 100%;
    height: 200px;
    margin: 2rem 0;
}
.header-wave svg {
    width: 100%;
    height: 100%;
    overflow: visible;
}
#mainWavePath {
    stroke-dasharray: 6000;
    stroke-dashoffset: 6000;
    transition: stroke-dashoffset 2.5s ease-in-out 0.4s;
    transform-origin: center;
    animation: waveBreath 6s ease-in-out infinite;
    animation-play-state: paused;
}
.is-revealed #mainWavePath {
    stroke-dashoffset: 0;
}
.is-revealed.wave-drawn #mainWavePath {
    animation-play-state: running;
}

@keyframes waveBreath {
    0%, 100%   { transform: translateY(0) scaleY(1); }
    50%        { transform: translateY(-6px) scaleY(1.04); }
}

/* ------------------------------------------------------------
   RHYTHM DIVIDERS
   ------------------------------------------------------------ */
.rhythm-divider {
    width: 100%;
    height: 60px;
    padding: 0 6vw;
    display: flex;
    align-items: center;
    justify-content: center;
}
.rhythm-divider svg {
    width: 100%;
    height: 100%;
    opacity: 0.65;
}
.rhythm-divider--two svg { opacity: 0.55; }
.rhythm-divider--three svg { opacity: 0.75; }

/* ------------------------------------------------------------
   CHAPTER INTRO
   ------------------------------------------------------------ */
.chapter-intro {
    max-width: 1400px;
    margin: 0 auto;
    padding: 5rem 6vw 3rem;
}
.chapter-mark {
    display: flex;
    align-items: center;
    gap: 1.2rem;
    margin-bottom: 2rem;
}
.chapter-number {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    letter-spacing: 0.12em;
    color: var(--copper);
    padding: 0.3rem 0.7rem;
    border: 1px solid rgba(184, 115, 51, 0.4);
}
.chapter-label {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--leather-brown);
}
.chapter-title {
    font-family: var(--font-heading);
    font-weight: 500;
    font-size: 3rem;
    line-height: 1.05;
    letter-spacing: 0.02em;
    color: var(--charred-oak);
    max-width: 900px;
    margin-bottom: 1.5rem;
}
.chapter-body {
    font-family: var(--font-body);
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--leather-brown);
    max-width: 680px;
}

/* ------------------------------------------------------------
   CRAFT GRID
   ------------------------------------------------------------ */
.craft-grid-wrapper {
    max-width: 1500px;
    margin: 0 auto;
    padding: 1rem 6vw 4rem;
    position: relative;
}
.craft-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-auto-rows: 240px;
    gap: 2px;
    transition: grid-template-columns 400ms cubic-bezier(0.34, 1.56, 0.64, 1);
}
.craft-grid-wrapper.is-panel-open .craft-grid {
    /* compression handled via CSS transform on larger screens */
}

.span-2x2 { grid-column: span 2; grid-row: span 2; }
.span-2x1 { grid-column: span 2; grid-row: span 1; }
.span-1x2 { grid-column: span 1; grid-row: span 2; }

.craft-card {
    position: relative;
    background: var(--warm-stone);
    border: 1px solid rgba(184, 115, 51, 0.25);
    overflow: hidden;
    cursor: pointer;
    opacity: 0;
    transform: scale(0.98);
    transition: transform 400ms ease-out, box-shadow 400ms ease;
}
.craft-card.is-pulsed {
    animation: pulseAttention 800ms ease-out forwards;
}

@keyframes pulseAttention {
    0%   { opacity: 0.7; transform: scale(0.98); }
    70%  { opacity: 1;   transform: scale(1.01); }
    100% { opacity: 1;   transform: scale(1.0); }
}

.craft-card:hover {
    box-shadow: inset 0 0 0 1px rgba(196, 114, 78, 0.6);
}
.craft-card:hover .card-title {
    color: var(--terracotta);
}

.card-inner {
    position: relative;
    width: 100%;
    height: 100%;
    padding: 1.6rem 1.4rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

/* Leather / linen textures */
.card-texture {
    position: absolute;
    inset: 0;
    pointer-events: none;
    background-image:
        repeating-linear-gradient(
            0deg,
            transparent 0,
            transparent 7px,
            rgba(107, 78, 55, 0.04) 7px,
            rgba(107, 78, 55, 0.04) 8px
        ),
        repeating-linear-gradient(
            90deg,
            transparent 0,
            transparent 7px,
            rgba(107, 78, 55, 0.04) 7px,
            rgba(107, 78, 55, 0.04) 8px
        ),
        radial-gradient(ellipse at 30% 30%, rgba(184, 115, 51, 0.06), transparent 70%);
    opacity: 0.9;
}
.card-texture--leather {
    background-image:
        repeating-linear-gradient(
            3deg,
            rgba(58, 48, 42, 0.04) 0,
            rgba(58, 48, 42, 0.04) 1px,
            transparent 1px,
            transparent 5px
        ),
        repeating-radial-gradient(
            ellipse at 30% 40%,
            rgba(107, 78, 55, 0.05) 0,
            rgba(107, 78, 55, 0.05) 2px,
            transparent 4px,
            transparent 18px
        ),
        radial-gradient(ellipse at 70% 80%, rgba(196, 114, 78, 0.08), transparent 60%);
    background-color: rgba(107, 78, 55, 0.08);
}
.card-texture--copper {
    background-image:
        radial-gradient(circle at 20% 25%, rgba(122, 154, 122, 0.18) 0, rgba(122, 154, 122, 0.18) 6px, transparent 8px),
        radial-gradient(circle at 70% 60%, rgba(122, 154, 122, 0.12) 0, rgba(122, 154, 122, 0.12) 4px, transparent 6px),
        radial-gradient(circle at 85% 30%, rgba(122, 154, 122, 0.10) 0, rgba(122, 154, 122, 0.10) 8px, transparent 10px),
        radial-gradient(ellipse at 50% 50%, rgba(184, 115, 51, 0.25), rgba(184, 115, 51, 0.12) 60%, transparent 90%);
    background-color: rgba(184, 115, 51, 0.15);
}

.card-num {
    position: relative;
    z-index: 2;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    letter-spacing: 0.14em;
    color: var(--copper);
    align-self: flex-end;
}

.card-content {
    position: relative;
    z-index: 2;
}
.card-eyebrow {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 0.68rem;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--leather-brown);
    margin-bottom: 0.6rem;
}
.card-title {
    font-family: var(--font-heading);
    font-weight: 300;
    font-size: 1.5rem;
    line-height: 1.1;
    letter-spacing: 0.02em;
    color: var(--charred-oak);
    margin-bottom: 0.5rem;
    transition: color 200ms ease;
}
.span-2x2 .card-title {
    font-size: 2.2rem;
    font-weight: 500;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}
.card-caption {
    font-family: var(--font-body);
    font-size: 0.92rem;
    line-height: 1.5;
    color: var(--leather-brown);
    max-width: 360px;
    margin-bottom: 0.7rem;
}
.card-meta {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    letter-spacing: 0.08em;
    color: var(--copper);
    display: flex;
    gap: 0.4rem;
}

.card-wave-accent {
    position: absolute;
    bottom: 1.2rem;
    left: 1.4rem;
    width: 70px;
    height: 14px;
    z-index: 2;
}

/* ------------------------------------------------------------
   FOOTER
   ------------------------------------------------------------ */
.site-footer {
    padding: 6rem 6vw 3rem;
    background: var(--warm-stone);
    border-top: 1px solid rgba(184, 115, 51, 0.2);
    position: relative;
}
.site-footer::before {
    content: "";
    position: absolute;
    inset: 0;
    pointer-events: none;
    background-image:
        repeating-linear-gradient(45deg, transparent 0, transparent 7px, rgba(107, 78, 55, 0.03) 7px, rgba(107, 78, 55, 0.03) 8px),
        repeating-linear-gradient(-45deg, transparent 0, transparent 7px, rgba(107, 78, 55, 0.03) 7px, rgba(107, 78, 55, 0.03) 8px);
}
.footer-grid {
    position: relative;
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 4rem;
    padding-bottom: 4rem;
    border-bottom: 1px solid rgba(107, 78, 55, 0.2);
}
.footer-col {
    position: relative;
}
.footer-label {
    display: block;
    font-family: var(--font-mono);
    font-size: 0.72rem;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--copper);
    margin-bottom: 1rem;
}
.footer-body {
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.7;
    color: var(--charred-oak);
}
.footer-bottom {
    position: relative;
    max-width: 1400px;
    margin: 0 auto;
    padding-top: 1.5rem;
    display: flex;
    justify-content: space-between;
}

/* ------------------------------------------------------------
   DETAIL PANEL
   ------------------------------------------------------------ */
.panel-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(58, 48, 42, 0.0);
    pointer-events: none;
    transition: background 400ms ease;
    z-index: 40;
}
.panel-backdrop.is-visible {
    background: rgba(58, 48, 42, 0.35);
    pointer-events: auto;
}

.detail-panel {
    position: fixed;
    top: 0;
    right: 0;
    width: 480px;
    max-width: 100vw;
    height: 100vh;
    background: var(--warm-stone);
    border-left: 1px solid var(--copper);
    transform: translateX(105%);
    transition: transform 520ms cubic-bezier(0.34, 1.56, 0.64, 1);
    z-index: 50;
    overflow: hidden;
}
.detail-panel.is-open {
    transform: translateX(0);
}

.panel-leather-texture {
    position: absolute;
    inset: 0;
    pointer-events: none;
    opacity: 0;
    transition: opacity 300ms ease 200ms;
    background-image:
        repeating-linear-gradient(3deg, rgba(58, 48, 42, 0.05) 0, rgba(58, 48, 42, 0.05) 1px, transparent 1px, transparent 5px),
        repeating-radial-gradient(ellipse at 30% 40%, rgba(107, 78, 55, 0.06) 0, rgba(107, 78, 55, 0.06) 2px, transparent 4px, transparent 18px),
        radial-gradient(ellipse at 70% 80%, rgba(196, 114, 78, 0.1), transparent 60%);
}
.detail-panel.is-open .panel-leather-texture {
    opacity: 1;
}

.panel-close {
    position: absolute;
    top: 1.4rem;
    right: 1.4rem;
    z-index: 3;
    font-family: var(--font-mono);
    font-size: 0.78rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--leather-brown);
    background: transparent;
    border: 1px solid rgba(107, 78, 55, 0.4);
    padding: 0.5rem 0.9rem;
    cursor: pointer;
    transition: color 200ms ease, border-color 200ms ease;
}
.panel-close:hover {
    color: var(--terracotta);
    border-color: var(--terracotta);
}

.panel-scroll {
    position: relative;
    z-index: 2;
    height: 100vh;
    overflow-y: auto;
    padding: 4.5rem 2.5rem 3rem;
}

.panel-num {
    display: block;
    font-family: var(--font-mono);
    font-size: 0.78rem;
    letter-spacing: 0.14em;
    color: var(--copper);
    margin-bottom: 1rem;
}
.panel-eyebrow {
    display: block;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--leather-brown);
    margin-bottom: 0.8rem;
}
.panel-title {
    font-family: var(--font-heading);
    font-weight: 500;
    font-size: 2.6rem;
    line-height: 1.05;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--charred-oak);
    margin-bottom: 1rem;
}
.panel-wave {
    width: 240px;
    height: 20px;
    margin-bottom: 1.6rem;
    opacity: 0.7;
}
.panel-caption {
    font-family: var(--font-body);
    font-style: italic;
    font-size: 1.05rem;
    line-height: 1.6;
    color: var(--leather-brown);
    margin-bottom: 2rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid rgba(107, 78, 55, 0.2);
}
.panel-specs {
    display: grid;
    grid-template-columns: max-content 1fr;
    gap: 0.6rem 1.4rem;
    margin-bottom: 2.2rem;
}
.panel-specs dt {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--copper);
    padding-top: 0.2rem;
}
.panel-specs dd {
    font-family: var(--font-body);
    font-size: 0.98rem;
    color: var(--charred-oak);
}
.panel-body {
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.75;
    color: var(--charred-oak);
    margin-bottom: 1.2rem;
}

/* ------------------------------------------------------------
   GRID COMPRESS WHEN PANEL OPEN
   ------------------------------------------------------------ */
body.panel-open .page-reveal {
    transform: translateX(-60px);
    transition: transform 400ms cubic-bezier(0.34, 1.56, 0.64, 1);
}
.page-reveal {
    transform: translateX(0);
    transition: transform 400ms cubic-bezier(0.34, 1.56, 0.64, 1), opacity 800ms ease-out;
}

/* ------------------------------------------------------------
   RESPONSIVE
   ------------------------------------------------------------ */
@media (max-width: 960px) {
    .craft-grid {
        grid-template-columns: repeat(2, 1fr);
        grid-auto-rows: 220px;
    }
    .span-2x2 { grid-column: span 2; grid-row: span 2; }
    .span-2x1 { grid-column: span 2; }
    .span-1x2 { grid-column: span 1; grid-row: span 2; }

    .chapter-title { font-size: 2.2rem; }
    .site-title { font-size: 10vw; }

    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 2rem;
    }
    body.panel-open .page-reveal {
        transform: translateX(0);
    }
}

@media (max-width: 640px) {
    .craft-grid {
        grid-template-columns: 1fr;
        grid-auto-rows: 220px;
    }
    .span-2x2, .span-2x1, .span-1x2 {
        grid-column: span 1;
        grid-row: span 1;
    }
    .detail-panel {
        width: 100vw;
        border-left: none;
    }
    .chapter-intro { padding: 3rem 6vw 2rem; }
    .chapter-title { font-size: 1.8rem; }
    .material-header { padding: 2rem 5vw 2rem; }
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    .footer-bottom {
        flex-direction: column;
        gap: 0.4rem;
    }
}