:root {
    --cork-board: #C4956A;
    --aged-parchment: #F0E6D0;
    --india-ink: #1C1410;
    --red-thread: #A63D2F;
    --compass-brass: #B8860B;
    --graph-blue: #4A6E8C;
    --acetate-green: #3D6B4F;
    --pencil-graphite: #6B6560;

    --font-display: 'Caveat', cursive;
    --font-body: 'Crimson Pro', serif;
    --font-mono: 'Share Tech Mono', monospace;

    --ease-enter: cubic-bezier(0.16, 1, 0.3, 1);
    --ease-smooth: cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    background: var(--cork-board);
    color: var(--india-ink);
    font-family: var(--font-body);
    font-weight: 400;
    font-size: clamp(0.95rem, 1.8vw, 1.15rem);
    line-height: 1.65;
    overflow-x: hidden;
}

/* Cork board texture */
body::before {
    content: '';
    position: fixed;
    inset: 0;
    z-index: 0;
    background:
        repeating-linear-gradient(0deg, transparent, transparent 18px, rgba(0,0,0,0.03) 18px, rgba(0,0,0,0.03) 19px),
        repeating-linear-gradient(90deg, transparent, transparent 18px, rgba(0,0,0,0.03) 18px, rgba(0,0,0,0.03) 19px),
        linear-gradient(135deg, #C4956A 0%, #B8875C 30%, #D4A574 60%, #C4956A 100%);
    pointer-events: none;
}

/* ===== SVG Noise Filter (inline in body) ===== */
body::after {
    content: '';
    position: fixed;
    inset: 0;
    z-index: 0;
    opacity: 0.04;
    background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
    pointer-events: none;
}

/* ===== Hexagonal Navigation ===== */
.hex-nav {
    position: fixed;
    top: 1.5rem;
    right: 1.5rem;
    z-index: 1000;
}

.hex-grid {
    display: grid;
    grid-template-columns: repeat(3, 36px);
    gap: 4px;
}

.hex-btn {
    width: 36px;
    height: 36px;
    clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
    background: var(--aged-parchment);
    border: none;
    cursor: pointer;
    position: relative;
    perspective: 200px;
    font-size: 1rem;
    transition: transform 300ms var(--ease-enter);
}

.hex-btn:hover {
    transform: scale(1.12) rotate(30deg);
}

.hex-btn.active {
    animation: hexPulse 2s ease-in-out infinite;
}

@keyframes hexPulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.08); }
}

.hex-face {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
    backface-visibility: hidden;
    font-family: var(--font-body);
    font-size: 0.6rem;
    color: var(--india-ink);
}

.hex-front {
    font-size: 1rem;
}

.hex-back {
    transform: rotateY(180deg);
    font-family: var(--font-mono);
    font-size: 0.5rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--red-thread);
}

.hex-btn:hover .hex-front {
    transform: rotateY(180deg);
}

.hex-btn:hover .hex-back {
    transform: rotateY(0deg);
}

/* ===== Thread Layer ===== */
.thread-layer {
    position: fixed;
    inset: 0;
    width: 100%;
    height: 100%;
    z-index: 2;
    pointer-events: none;
}

.red-thread {
    stroke-dashoffset: 600;
    transition: stroke-dashoffset 1200ms ease-in-out;
}

.red-thread.drawn {
    stroke-dashoffset: 0;
}

/* ===== Perspective Container ===== */
.perspective-wrap {
    position: relative;
    perspective: 1200px;
    z-index: 1;
}

/* ===== Depth Layers ===== */
.bg-layer { transform: translateZ(-200px) scale(1.17); }
.mid-layer { transform: translateZ(-100px) scale(1.08); }
.fg-layer { transform: translateZ(0); }

/* ===== Panel Material Styles ===== */
.panel-parchment {
    background: var(--aged-parchment);
    position: relative;
}

.panel-parchment::before {
    content: '';
    position: absolute;
    inset: 0;
    opacity: 0.05;
    background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='100' height='100'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
    pointer-events: none;
}

.panel-graph {
    background: var(--aged-parchment);
    background-image:
        repeating-linear-gradient(0deg, transparent, transparent 19px, rgba(74,110,140,0.08) 19px, rgba(74,110,140,0.08) 20px),
        repeating-linear-gradient(90deg, transparent, transparent 19px, rgba(74,110,140,0.08) 19px, rgba(74,110,140,0.08) 20px),
        repeating-linear-gradient(0deg, transparent, transparent 99px, rgba(74,110,140,0.15) 99px, rgba(74,110,140,0.15) 100px),
        repeating-linear-gradient(90deg, transparent, transparent 99px, rgba(74,110,140,0.15) 99px, rgba(74,110,140,0.15) 100px);
}

.panel-acetate {
    background: rgba(61, 107, 79, 0.12);
    backdrop-filter: blur(1px);
}

.panel-ruled {
    background: var(--aged-parchment);
    background-image:
        repeating-linear-gradient(0deg, transparent, transparent 27px, rgba(74,110,140,0.12) 27px, rgba(74,110,140,0.12) 28px);
}

/* ===== Pushpins ===== */
.pushpin {
    position: absolute;
    z-index: 10;
    filter: drop-shadow(2px 2px 3px rgba(0,0,0,0.3));
}

/* ===== Section 1: Departure Board ===== */
.departure {
    position: relative;
    min-height: 100vh;
    padding: 4rem 3rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.departure-card {
    position: absolute;
    padding: 1.5rem 2rem;
    width: 220px;
    box-shadow: 2px 4px 12px rgba(0,0,0,0.15);
    opacity: 0;
    transition: opacity 800ms var(--ease-smooth), transform 600ms var(--ease-enter);
    z-index: 3;
}

.departure-card.revealed {
    opacity: 1;
}

.card-dest {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: clamp(1.4rem, 3vw, 2rem);
    display: block;
    color: var(--india-ink);
    letter-spacing: 0.02em;
}

.card-time {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    letter-spacing: 0.08em;
    color: var(--compass-brass);
    display: block;
    margin: 0.25rem 0;
}

.card-coords {
    font-family: var(--font-mono);
    font-size: clamp(0.7rem, 1.2vw, 0.9rem);
    letter-spacing: 0.08em;
    color: var(--compass-brass);
    display: block;
}

.departure-title {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: clamp(3rem, 8vw, 6rem);
    color: var(--india-ink);
    position: relative;
    z-index: 5;
    text-align: center;
    transform: rotate(-1.5deg);
    letter-spacing: 0.02em;
    line-height: 1.15;
}

.departure-subtitle {
    font-family: var(--font-body);
    font-weight: 400;
    font-size: clamp(1rem, 2vw, 1.3rem);
    color: var(--pencil-graphite);
    text-align: center;
    position: relative;
    z-index: 5;
    margin-top: 0.5rem;
    transform: rotate(0.5deg);
}

/* ===== Section 2: Map Table ===== */
.map-table {
    min-height: 150vh;
    padding: 4rem 3rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.map-surface {
    position: relative;
    width: 90%;
    max-width: 900px;
    min-height: 70vh;
    padding: 4rem;
    box-shadow: 3px 6px 20px rgba(0,0,0,0.2);
}

.map-fragment {
    margin-bottom: 3rem;
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 800ms var(--ease-smooth), transform 800ms var(--ease-smooth);
}

.map-fragment.revealed {
    opacity: 1;
    transform: translateY(0);
}

.section-title {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: clamp(2rem, 4vw, 3.5rem);
    color: var(--india-ink);
    letter-spacing: 0.02em;
    line-height: 1.15;
    margin-bottom: 1rem;
    transform: rotate(-1deg);
}

.annotation-box {
    padding: 1.5rem;
    margin: 1.5rem 0;
    border-left: 3px solid var(--acetate-green);
}

.annot-label {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    letter-spacing: 0.08em;
    color: var(--compass-brass);
    display: block;
    margin-bottom: 0.5rem;
    text-transform: uppercase;
}

.data-overlay {
    font-family: var(--font-mono);
    font-size: clamp(0.7rem, 1.2vw, 0.9rem);
    letter-spacing: 0.08em;
    color: var(--compass-brass);
    display: block;
    margin: 0.25rem 0;
}

/* ===== Section 3: Field Journal ===== */
.field-journal {
    min-height: 150vh;
    padding: 4rem 3rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.journal-page {
    position: relative;
    width: 85%;
    max-width: 700px;
    padding: 4rem 4rem 4rem 5rem;
    box-shadow: 3px 6px 20px rgba(0,0,0,0.2);
    border-left: 3px solid var(--red-thread);
}

.journal-entry {
    margin-bottom: 3rem;
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 700ms var(--ease-smooth), transform 700ms var(--ease-smooth);
}

.journal-entry.revealed {
    opacity: 1;
    transform: translateY(0);
}

.journal-date {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    letter-spacing: 0.08em;
    color: var(--pencil-graphite);
    display: block;
    margin-bottom: 0.5rem;
    text-transform: uppercase;
}

/* Marginalia Sketches */
.marginalia {
    position: absolute;
    opacity: 0.7;
}

.sketch-mountain {
    right: -60px;
    top: 20%;
    width: 120px;
}

.sketch-tent {
    right: -50px;
    top: 60%;
    width: 80px;
}

.marginalia path {
    stroke-dasharray: 500;
    stroke-dashoffset: 500;
    transition: stroke-dashoffset 2000ms ease-out, fill-opacity 300ms ease-out 2000ms;
    fill: var(--acetate-green);
    fill-opacity: 0;
}

.marginalia.drawn path {
    stroke-dashoffset: 0;
    fill-opacity: 0.15;
}

/* ===== Section 4: Compass Room ===== */
.compass-room {
    min-height: 100vh;
    padding: 4rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--india-ink);
}

.compass-container {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2rem;
}

.compass-rose {
    width: 300px;
    height: 300px;
}

@media (min-width: 768px) {
    .compass-rose { width: 400px; height: 400px; }
}

.compass-body, .compass-needle {
    transform-origin: 200px 200px;
    transition: transform 100ms linear;
}

.compass-coords {
    display: flex;
    gap: 2rem;
    flex-wrap: wrap;
    justify-content: center;
}

.coord-readout {
    font-family: var(--font-mono);
    font-size: clamp(0.7rem, 1.2vw, 0.9rem);
    letter-spacing: 0.08em;
    color: var(--compass-brass);
}

/* ===== Section 5: Arrival ===== */
.arrival {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 4rem;
}

.arrival-panel {
    background: var(--aged-parchment);
    padding: 4rem 6rem;
    text-align: center;
    box-shadow: 3px 6px 20px rgba(0,0,0,0.15);
    opacity: 0;
    transform: scale(0.95);
    transition: opacity 800ms var(--ease-enter), transform 800ms var(--ease-enter);
}

.arrival-panel.revealed {
    opacity: 1;
    transform: scale(1);
}

.arrival-title {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: clamp(3rem, 6vw, 5rem);
    color: var(--india-ink);
    letter-spacing: 0.02em;
    line-height: 1.15;
    animation: breathe 4s ease-in-out infinite;
}

.arrival-subtitle {
    font-family: var(--font-body);
    font-weight: 400;
    font-size: 1.1rem;
    color: var(--pencil-graphite);
    margin-top: 0.5rem;
}

@keyframes breathe {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.02); }
}

/* Torn edge effect on some panels */
.journal-page {
    clip-path: polygon(0 0, 100% 0, 100% 3%, 99% 8%, 100% 14%, 99.5% 20%, 100% 26%, 99% 32%, 100% 40%, 99.5% 48%, 100% 55%, 99% 62%, 100% 70%, 99.5% 78%, 100% 85%, 99% 92%, 100% 100%, 0 100%);
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
    .hex-nav { top: 0.5rem; right: 0.5rem; }
    .hex-grid { grid-template-columns: repeat(3, 28px); }
    .hex-btn { width: 28px; height: 28px; }
    .departure-card { width: 160px; padding: 1rem; }
    .map-surface { padding: 2rem; width: 95%; }
    .journal-page { padding: 2rem; width: 95%; }
    .arrival-panel { padding: 2rem 3rem; }
    .marginalia { display: none; }
}

/* ===== Reduced Motion ===== */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    .departure-card, .map-fragment, .journal-entry, .arrival-panel {
        opacity: 1;
        transform: none;
    }
}