/* ==========================================================================
   SSETTL.com - Corporate Zen
   Palette: #f5f0e6 #ede4d3 #e8cfc4 #c9a96e #5a4a3a #a8bfb5 #3a3632 #d4c8b0
   Fonts: Poiret One, Josefin Sans, Libre Baskerville
   Intersection Observer at 15% visibility threshold. The animation uses `cubic-bezier(0.34, 1.56, 0.64, 1)`.
   ========================================================================== */

:root {
    /* Palette */
    --plaster-white: #f5f0e6;
    --almond-milk:   #ede4d3;
    --rose-plaster:  #e8cfc4;
    --deco-brass:    #c9a96e;
    --smoked-walnut: #5a4a3a;
    --jade-mist:     #a8bfb5;
    --evening-stone: #3a3632;
    --sand-border:   #d4c8b0;

    /* Fibonacci spacing scale (base 8px) */
    --sp-1: 8px;
    --sp-2: 16px;
    --sp-3: 24px;
    --sp-5: 40px;
    --sp-8: 64px;
    --sp-13: 104px;

    /* Fonts */
    --font-display: 'Poiret One', 'Josefin Sans', sans-serif;
    --font-sans:    'Josefin Sans', 'Inter', sans-serif;
    --font-serif:   'Libre Baskerville', Georgia, serif;

    /* Easing */
    --bounce: cubic-bezier(0.34, 1.56, 0.64, 1);

    /* Gradient-mesh moving positions */
    --x1: 30%; --y1: 30%;
    --x2: 70%; --y2: 60%;
    --x3: 40%; --y3: 80%;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-serif);
    color: var(--smoked-walnut);
    background: var(--plaster-white);
    line-height: 1.85;
    letter-spacing: 0.01em;
    overflow-x: hidden;
    position: relative;
    min-height: 100vh;
}

/* ---------- Raked sand texture overlay ---------- */
.sand-overlay {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 1;
    opacity: 0.035;
    background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='160' height='160'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 0.35 0 0 0 0 0.29 0 0 0 0 0.23 0 0 0 0.9 0'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>");
    background-size: 160px 160px;
    mix-blend-mode: multiply;
}

/* ---------- Navigation ---------- */
.nav {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 40;
    background: rgba(245, 240, 230, 0.72);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--sand-border);
    opacity: 0;
    transform: translateY(-12px);
    transition: opacity 1.2s var(--bounce), transform 1.2s var(--bounce);
}

.nav.is-ready {
    opacity: 1;
    transform: translateY(0);
}

.nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--sp-2) var(--sp-5);
    max-width: 100%;
}

.logo {
    font-family: var(--font-display);
    font-size: 1.5rem;
    letter-spacing: 0.32em;
    color: var(--smoked-walnut);
    text-decoration: none;
    text-transform: uppercase;
}

.nav-links {
    list-style: none;
    display: flex;
    gap: var(--sp-5);
}

.nav-links a {
    font-family: var(--font-sans);
    font-weight: 300;
    font-size: 0.72rem;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: var(--smoked-walnut);
    text-decoration: none;
    padding: var(--sp-1) 0;
    border-bottom: 1px solid transparent;
    transition: color 0.6s ease, border-color 0.6s ease;
}

.nav-links a:hover {
    color: var(--deco-brass);
    border-bottom-color: var(--deco-brass);
}

/* ---------- Section base ---------- */
.section {
    position: relative;
    min-height: 100vh;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--sp-13) var(--sp-5);
    z-index: 2;
    overflow: hidden;
}

/* ---------- Section 1: Hero ---------- */
.section-hero {
    background: var(--plaster-white);
    text-align: center;
}

.hero-content {
    position: relative;
    z-index: 2;
}

.hero-title {
    font-family: var(--font-display);
    font-weight: 400;
    font-size: clamp(3rem, 14vw, 11rem);
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--smoked-walnut);
    line-height: 1;
    padding-left: 0.14em;
}

.mesh-orb-hero {
    position: absolute;
    top: 50%; left: 50%;
    width: min(80vw, 900px);
    aspect-ratio: 1;
    transform: translate(-50%, -50%);
    opacity: 0.22;
    z-index: 1;
    filter: blur(2px);
    background:
        radial-gradient(circle at var(--x1) var(--y1),
            var(--rose-plaster) 0%, transparent 55%),
        radial-gradient(circle at var(--x2) var(--y2),
            var(--jade-mist) 0%, transparent 55%),
        radial-gradient(circle at var(--x3) var(--y3),
            var(--almond-milk) 0%, transparent 60%),
        radial-gradient(circle at 50% 50%,
            var(--plaster-white) 0%, transparent 70%);
    border-radius: 50%;
    animation: meshDrift 72s ease-in-out infinite, orbPulse 9s ease-in-out infinite;
}

@keyframes meshDrift {
    0%, 100% {
        --x1: 30%; --y1: 30%;
        --x2: 70%; --y2: 60%;
        --x3: 40%; --y3: 80%;
    }
    33% {
        --x1: 60%; --y1: 50%;
        --x2: 35%; --y2: 35%;
        --x3: 70%; --y3: 70%;
    }
    66% {
        --x1: 45%; --y1: 75%;
        --x2: 65%; --y2: 25%;
        --x3: 25%; --y3: 55%;
    }
}

@keyframes orbPulse {
    0%, 100% { transform: translate(-50%, -50%) scale(1); opacity: 0.22; }
    50%      { transform: translate(-50%, -50%) scale(1.06); opacity: 0.28; }
}

/* ---------- Section 2: Ethos (symmetrical two-column) ---------- */
.section-ethos {
    background: var(--almond-milk);
}

.ethos-grid {
    width: 100%;
    max-width: 1280px;
    display: grid;
    grid-template-columns: 1fr 240px 1fr;
    gap: 80px;
    align-items: center;
}

.column {
    max-width: 520px;
}

.column-left { justify-self: end; text-align: right; }
.column-right { justify-self: start; text-align: left; }

.column-heading {
    font-family: var(--font-sans);
    font-weight: 300;
    font-size: 1.1rem;
    letter-spacing: 0.26em;
    text-transform: uppercase;
    color: var(--deco-brass);
    margin-bottom: var(--sp-3);
}

.column p {
    font-family: var(--font-serif);
    font-size: 1.0625rem;
    line-height: 1.85;
    color: var(--smoked-walnut);
    margin-bottom: var(--sp-2);
}

.sunburst-void {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 240px;
    height: 240px;
}

.sunburst {
    width: 100%;
    height: 100%;
}

.sunburst .ray {
    stroke-dasharray: 100;
    stroke-dashoffset: 100;
    opacity: 0.8;
}

.sunburst .ray-ring {
    stroke-dasharray: 600;
    stroke-dashoffset: 600;
    opacity: 0.6;
}

.sunburst.is-drawn .ray {
    animation: drawRay 1.5s ease-out forwards;
}

.sunburst.is-drawn .ray:nth-child(odd) { animation-delay: 0.1s; }
.sunburst.is-drawn .ray:nth-child(even) { animation-delay: 0.3s; }

.sunburst.is-drawn .ray-ring {
    animation: drawRing 2s ease-out forwards;
    animation-delay: 0.6s;
}

@keyframes drawRay {
    to { stroke-dashoffset: 0; }
}

@keyframes drawRing {
    to { stroke-dashoffset: 0; }
}

/* ---------- Section 3: Breath Pause ---------- */
.section-breath {
    background: linear-gradient(180deg, var(--almond-milk) 0%, var(--plaster-white) 100%);
    flex-direction: column;
    text-align: center;
}

.mesh-composition {
    position: relative;
    width: min(70vw, 640px);
    aspect-ratio: 1;
    margin-bottom: var(--sp-8);
}

.orb {
    position: absolute;
    width: 70%;
    aspect-ratio: 1;
    border-radius: 50%;
    mix-blend-mode: multiply;
    filter: blur(24px);
}

.orb-one {
    top: 0; left: 10%;
    background: radial-gradient(circle, var(--almond-milk) 0%, transparent 70%);
    animation: orbFloatA 62s ease-in-out infinite;
}

.orb-two {
    top: 15%; left: 30%;
    background: radial-gradient(circle, var(--rose-plaster) 0%, transparent 70%);
    animation: orbFloatB 78s ease-in-out infinite;
}

.orb-three {
    bottom: 0; left: 20%;
    background: radial-gradient(circle, var(--jade-mist) 0%, transparent 70%);
    animation: orbFloatC 88s ease-in-out infinite;
}

@keyframes orbFloatA {
    0%, 100% { transform: translate(0, 0) scale(1); }
    50%      { transform: translate(8%, -6%) scale(1.1); }
}

@keyframes orbFloatB {
    0%, 100% { transform: translate(0, 0) scale(1); }
    50%      { transform: translate(-10%, 6%) scale(0.95); }
}

@keyframes orbFloatC {
    0%, 100% { transform: translate(0, 0) scale(1); }
    50%      { transform: translate(6%, -10%) scale(1.08); }
}

.contemplative-phrase {
    font-family: var(--font-sans);
    font-weight: 300;
    font-style: italic;
    font-size: clamp(1rem, 1.6vw, 1.25rem);
    letter-spacing: 0.12em;
    color: var(--smoked-walnut);
    max-width: 640px;
    line-height: 1.8;
}

/* ---------- Section 4: Pillars ---------- */
.section-pillars {
    background: var(--plaster-white);
    flex-direction: column;
    padding-top: var(--sp-13);
    padding-bottom: var(--sp-13);
}

.pillars-header {
    text-align: center;
    margin-bottom: var(--sp-8);
}

.pillars-eyebrow {
    font-family: var(--font-sans);
    font-weight: 300;
    font-size: 1rem;
    letter-spacing: 0.38em;
    text-transform: uppercase;
    color: var(--deco-brass);
    margin-bottom: var(--sp-2);
}

.pillars-caption {
    font-family: var(--font-serif);
    font-style: italic;
    font-size: 1rem;
    color: var(--smoked-walnut);
}

.pillars-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--sp-8);
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
}

.pillar {
    position: relative;
    padding: var(--sp-5) var(--sp-3) var(--sp-3);
    background: linear-gradient(180deg, transparent 0%, rgba(237, 228, 211, 0.5) 100%);
}

.stepped-border {
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 14px;
    background:
        repeating-linear-gradient(
            90deg,
            var(--deco-brass) 0 14px,
            transparent 14px 16px
        );
    opacity: 0.8;
}

.stepped-border::before,
.stepped-border::after {
    content: "";
    position: absolute;
    left: 0; right: 0;
    height: 1px;
    background: var(--deco-brass);
}

.stepped-border::before { top: 0; }
.stepped-border::after { top: 13px; opacity: 0.5; }

.pillar-title {
    font-family: var(--font-sans);
    font-weight: 400;
    font-size: 1.2rem;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--smoked-walnut);
    margin-top: var(--sp-3);
    margin-bottom: var(--sp-2);
}

.pillar-body {
    font-family: var(--font-serif);
    font-size: 1rem;
    line-height: 1.85;
    color: var(--smoked-walnut);
}

.pillar-marker {
    position: absolute;
    top: var(--sp-3);
    right: var(--sp-3);
    font-family: var(--font-display);
    font-size: 1.4rem;
    color: var(--deco-brass);
    letter-spacing: 0.1em;
}

.greek-key {
    margin: var(--sp-8) auto 0;
    width: min(420px, 80%);
    height: 20px;
    opacity: 0;
    transition: opacity 1.5s ease;
}

.greek-key.is-visible { opacity: 1; }

.greek-key svg { width: 100%; height: 100%; }

.greek-path {
    stroke-dasharray: 1400;
    stroke-dashoffset: 1400;
    transition: stroke-dashoffset 2s ease-out;
}

.greek-key.is-visible .greek-path {
    stroke-dashoffset: 0;
}

/* ---------- Section 5: Evening ---------- */
.section-evening {
    background: linear-gradient(180deg, var(--plaster-white) 0%, var(--evening-stone) 55%, var(--evening-stone) 100%);
    color: var(--plaster-white);
    text-align: center;
    position: relative;
}

.evening-orb {
    position: absolute;
    top: 55%; left: 50%;
    transform: translate(-50%, -50%);
    width: min(60vw, 640px);
    aspect-ratio: 1;
    border-radius: 50%;
    filter: blur(3px);
    opacity: 0.5;
    z-index: 1;
    background:
        radial-gradient(circle at 30% 30%, var(--deco-brass) 0%, transparent 50%),
        radial-gradient(circle at 70% 60%, var(--smoked-walnut) 0%, transparent 55%),
        radial-gradient(circle at 50% 80%, rgba(168, 191, 181, 0.25) 0%, transparent 60%);
    animation: eveningPulse 12s ease-in-out infinite;
}

@keyframes eveningPulse {
    0%, 100% { transform: translate(-50%, -50%) scale(1); opacity: 0.45; }
    50%      { transform: translate(-50%, -50%) scale(1.08); opacity: 0.55; }
}

.evening-content {
    position: relative;
    z-index: 2;
    max-width: 720px;
}

.evening-heading {
    font-family: var(--font-display);
    font-weight: 400;
    font-size: clamp(2rem, 5vw, 4rem);
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--plaster-white);
    margin-bottom: var(--sp-5);
    padding-left: 0.14em;
}

.evening-body {
    font-family: var(--font-serif);
    font-size: 1.1rem;
    line-height: 1.85;
    color: var(--almond-milk);
    margin-bottom: var(--sp-5);
}

.evening-link {
    display: inline-block;
    font-family: var(--font-sans);
    font-weight: 300;
    font-size: 0.95rem;
    letter-spacing: 0.28em;
    text-transform: uppercase;
    color: var(--deco-brass);
    text-decoration: none;
    padding: var(--sp-2) var(--sp-3);
    border-top: 1px solid var(--deco-brass);
    border-bottom: 1px solid var(--deco-brass);
    transition: color 0.6s ease, letter-spacing 0.6s ease, border-color 0.6s ease;
}

.evening-link:hover {
    color: var(--rose-plaster);
    letter-spacing: 0.34em;
    border-color: var(--rose-plaster);
}

/* ---------- Footer ---------- */
.footer {
    background: var(--evening-stone);
    color: var(--almond-milk);
    text-align: center;
    padding: var(--sp-8) var(--sp-5);
    position: relative;
    z-index: 2;
}

.stepped-line {
    width: min(600px, 90%);
    height: 32px;
    margin: 0 auto var(--sp-5);
}

.stepped-line svg { width: 100%; height: 100%; overflow: visible; }

.stepped-path {
    stroke-dasharray: 1200;
    stroke-dashoffset: 1200;
    transition: stroke-dashoffset 1.8s ease-out;
}

.stepped-dot {
    opacity: 0;
    transition: opacity 0.8s ease 1.4s;
}

.stepped-line.is-drawn .stepped-path { stroke-dashoffset: 0; }
.stepped-line.is-drawn .stepped-dot { opacity: 1; }

.footer-text {
    font-family: var(--font-sans);
    font-weight: 300;
    font-size: 0.8rem;
    letter-spacing: 0.34em;
    text-transform: uppercase;
    color: var(--almond-milk);
    margin-bottom: var(--sp-1);
}

.footer-fine {
    font-family: var(--font-serif);
    font-style: italic;
    font-size: 0.82rem;
    letter-spacing: 0.06em;
    color: var(--sand-border);
    opacity: 0.7;
}

/* ---------- Fan motif watermarks ---------- */
.fan-motif {
    position: fixed;
    width: 260px;
    height: 260px;
    opacity: 0;
    pointer-events: none;
    z-index: 2;
    transition: opacity 1.2s ease;
}

.fan-motif.is-visible { opacity: 0.05; }

.fan-top-right { top: 0; right: 0; }
.fan-bottom-left { bottom: 0; left: 0; }

.fan-motif svg { width: 100%; height: 100%; }

/* ---------- Reveal (bounce-enter) ---------- */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 800ms var(--bounce), transform 800ms var(--bounce);
}

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

/* Bidirectional column reveals */
.column-left.reveal { transform: translate(-30px, 40px); }
.column-right.reveal { transform: translate(30px, 40px); }

.column-left.reveal.is-visible,
.column-right.reveal.is-visible {
    transform: translate(0, 0);
}

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
    .nav-inner { padding: var(--sp-2) var(--sp-3); }
    .nav-links { gap: var(--sp-3); }
    .nav-links a { font-size: 0.65rem; letter-spacing: 0.22em; }

    .ethos-grid {
        grid-template-columns: 1fr;
        gap: var(--sp-5);
        text-align: center;
    }
    .column-left, .column-right {
        justify-self: center;
        text-align: center;
    }
    .sunburst-void { width: 180px; height: 180px; margin: 0 auto; }

    .pillars-grid {
        grid-template-columns: 1fr;
        gap: var(--sp-5);
        max-width: 520px;
    }
}

@media (max-width: 600px) {
    .nav-links { display: none; }
    .section { padding: var(--sp-8) var(--sp-3); }
    .hero-title { font-size: clamp(2.5rem, 20vw, 5rem); }
}