/* =========================================
   p9r.st — Swiss + Pastoral Romantic
   Jewel-tone palette, centered layout,
   kinetic typography, wave-form motifs
   ========================================= */

/* --- CSS Custom Properties --- */
:root {
    --warm-ivory: #faf6f0;
    --midnight-indigo: #0f1b2d;
    --amethyst: #7b2d8e;
    --deep-sapphire: #1a3a6b;
    --garnet: #8b1a2b;
    --burnished-gold: #c8a84e;
    --deep-graphite: #2a2a3d;
    --muted-amethyst: #6b5c7a;
    --parchment-cream: #e8e0d4;
    --emerald-glass: #1a6b4a;

    --font-display: 'Bebas Neue', sans-serif;
    --font-body: 'Source Serif 4', serif;
    --font-caption: 'DM Sans', sans-serif;

    --base-unit: 8px;
    --col-width-desktop: 50%;
    --col-width-tablet: 66.666%;
    --col-width-mobile: 83.333%;
}

/* --- Reset & Base --- */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
    scroll-snap-type: y proximity;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    background-color: var(--warm-ivory);
    color: var(--deep-graphite);
    font-family: var(--font-body);
    font-size: clamp(1.05rem, 1.2vw, 1.25rem);
    line-height: 1.85;
    letter-spacing: 0.01em;
    overflow-x: hidden;
}

/* --- Centered Column --- */
.centered-column {
    width: var(--col-width-desktop);
    max-width: 720px;
    margin: 0 auto;
    padding: 0 calc(var(--base-unit) * 2);
}

@media (max-width: 1024px) {
    .centered-column {
        width: var(--col-width-tablet);
    }
}

@media (max-width: 640px) {
    .centered-column {
        width: var(--col-width-mobile);
    }
}

/* --- Zone Base --- */
.zone {
    position: relative;
    scroll-snap-align: start;
}

/* =========================================
   ZONE 1: THE THRESHOLD
   ========================================= */
.zone--threshold {
    height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background-color: var(--warm-ivory);
    overflow: hidden;
}

.threshold-waves {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    opacity: 0.4;
}

.threshold-content {
    position: relative;
    z-index: 1;
    text-align: center;
}

.site-name {
    font-family: var(--font-display);
    font-weight: 400;
    font-size: clamp(3rem, 10vw, 8rem);
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--deep-graphite);
    line-height: 1;
}

.site-name .char {
    display: inline-block;
    opacity: 0;
    animation: charFadeIn 400ms ease forwards;
}

@keyframes charFadeIn {
    from {
        opacity: 0;
        transform: translateY(12px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes charBreathe {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-3px);
    }
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: 80px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
    opacity: 0;
    animation: scrollPulse 2s ease-in-out infinite;
    animation-delay: 3s;
    animation-fill-mode: both;
}

@keyframes scrollPulse {
    0%, 100% { opacity: 0.3; }
    50% { opacity: 0.7; }
}

/* =========================================
   WAVE DIVIDERS
   ========================================= */
.wave-divider {
    height: 64px;
    position: relative;
    overflow: hidden;
    background-color: var(--warm-ivory);
}

.zone--estuary ~ .wave-divider,
.wave-divider:last-of-type {
    background-color: var(--warm-ivory);
}

.divider-svg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

/* =========================================
   ZONE 2: THE FIELD
   ========================================= */
.zone--field {
    background-color: var(--warm-ivory);
    padding: calc(var(--base-unit) * 16) 0;
}

.field-paragraph {
    position: relative;
    margin-bottom: calc(var(--base-unit) * 8);
}

.body-text {
    font-family: var(--font-body);
    font-weight: 400;
    font-size: clamp(1.05rem, 1.2vw, 1.25rem);
    line-height: 1.85;
    letter-spacing: 0.01em;
    color: var(--deep-graphite);
    opacity: 0;
    transform: translateY(8px);
    transition: opacity 800ms ease 200ms, transform 800ms ease 200ms;
}

.body-text--small {
    font-size: clamp(0.95rem, 1.1vw, 1.1rem);
}

.field-paragraph.is-revealed .body-text {
    opacity: 1;
    transform: translateY(0);
}

.caption {
    display: block;
    font-family: var(--font-caption);
    font-weight: 500;
    font-size: clamp(0.7rem, 0.85vw, 0.85rem);
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--muted-amethyst);
    margin-top: calc(var(--base-unit) * 8);
    text-align: center;
}

/* --- Skeleton Loading --- */
.skeleton-block {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    opacity: 1;
    transition: opacity 600ms ease;
}

.field-paragraph.is-revealed .skeleton-block {
    opacity: 0;
    pointer-events: none;
}

.skeleton-line {
    height: 14px;
    border-radius: 4px;
    margin-bottom: 12px;
    background: linear-gradient(
        90deg,
        rgba(139, 26, 43, 0.08) 0%,
        rgba(139, 26, 43, 0.08) 40%,
        rgba(139, 26, 43, 0.15) 50%,
        rgba(139, 26, 43, 0.08) 60%,
        rgba(139, 26, 43, 0.08) 100%
    );
    background-size: 200% 100%;
    animation: shimmer 2s linear infinite;
}

.skeleton-line--short {
    width: 60%;
}

@keyframes shimmer {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* =========================================
   ZONE 3: THE ALMANAC
   ========================================= */
.zone--almanac {
    height: 100vh;
    background-color: var(--warm-ivory);
    display: grid;
    place-items: center;
    overflow: hidden;
}

.almanac-content {
    text-align: center;
}

.almanac-word {
    font-family: var(--font-display);
    font-weight: 400;
    font-size: clamp(8rem, 20vw, 16rem);
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--amethyst);
    line-height: 1;
    white-space: nowrap;
}

.almanac-word .almanac-char {
    display: inline-block;
}

@keyframes letterFloat {
    0%, 100% {
        transform: translateY(0) rotate(0deg);
        opacity: 0.85;
    }
    50% {
        transform: translateY(-4px) rotate(1.2deg);
        opacity: 1;
    }
}

/* =========================================
   ZONE 4: THE ESTUARY
   ========================================= */
.zone--estuary {
    background-color: var(--warm-ivory);
    padding: calc(var(--base-unit) * 16) 0;
    position: relative;
    overflow: hidden;
}

.estuary-waves {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
}

.estuary-content {
    position: relative;
    z-index: 1;
}

.estuary-band {
    padding: calc(var(--base-unit) * 4) calc(var(--base-unit) * 3);
    margin-bottom: calc(var(--base-unit) * 8);
    border-radius: 2px;
}

.estuary-band--sapphire {
    background-color: rgba(26, 58, 107, 0.08);
}

.estuary-band--emerald {
    background-color: rgba(26, 107, 74, 0.08);
}

.estuary-columns {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: calc(var(--base-unit) * 4);
    margin-bottom: calc(var(--base-unit) * 8);
}

@media (max-width: 640px) {
    .estuary-columns {
        grid-template-columns: 1fr;
    }
}

/* =========================================
   ZONE 5: THE HORIZON
   ========================================= */
.zone--horizon {
    height: 100vh;
    background-color: var(--midnight-indigo);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    transition: background-color 600ms ease;
}

.horizon-wave-svg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    opacity: 0.6;
}

.horizon-content {
    position: relative;
    z-index: 1;
    text-align: center;
}

.horizon-domain {
    font-family: var(--font-display);
    font-weight: 400;
    font-size: clamp(0.9rem, 1.5vw, 1.2rem);
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--burnished-gold);
}

/* --- Dark Zone Text Override --- */
.zone--horizon .body-text {
    color: var(--parchment-cream);
}

/* --- Wave path styling --- */
.estuary-waves path {
    will-change: transform;
}

.threshold-waves path {
    will-change: transform;
}

.horizon-wave-svg path {
    will-change: transform;
}