/* Tredori — landing page
   Palette & type mirror the app's DesignTokens (DesignSystem.swift).
   Wabi-sabi, editorial, premium: paper ground, ink-wash ambient, tactile grain,
   generous negative space, restrained motion. No hard shadows, no dark patterns. */

:root {
    --paper:        #FDFBF7;
    --paper-warm:   #F7F3EB;
    --paper-line:   #E9E1D4;
    --paper-line-2: #F0EADF;

    --ink-87:       #2A2724;
    --ink-70:       #4A453F;
    --ink-55:       #6E655C;
    --ink-40:       #938A80;
    --ink-25:       #BBB2A6;

    --spring:       #8BA870;
    --sage:         #5A8655;
    --winter:       #9AACBE;
    --summer:       #D4A24C;
    --gold:         #C9A050;
    --tan:          #C4956A;
    --autumn:       #B87843;
    --neutral:      #6B7B8D;
    --hanami:       #D98C9A;

    --maxw:         1180px;
    --gutter:       28px;

    --serif: "Lora", Georgia, "Times New Roman", serif;
    --round: "Nunito", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
    margin: 0;
    font-family: var(--round);
    color: var(--ink-70);
    background: var(--paper);
    line-height: 1.68;
    font-size: 18px;
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

/* Ambient ink-wash field + tactile grain (fixed, behind everything) */
.ambient { position: fixed; inset: 0; z-index: -2; overflow: hidden; pointer-events: none; }
.orb { position: absolute; border-radius: 50%; filter: blur(90px); opacity: 0.5; will-change: transform; }
.orb.a { width: 60vw; height: 60vw; top: -18vw; left: -12vw; background: radial-gradient(circle, rgba(139,168,112,0.55), transparent 66%); animation: drift1 34s ease-in-out infinite; }
.orb.b { width: 52vw; height: 52vw; bottom: -20vw; right: -14vw; background: radial-gradient(circle, rgba(201,160,80,0.42), transparent 66%); animation: drift2 40s ease-in-out infinite; }
.orb.c { width: 40vw; height: 40vw; top: 40%; left: 55%; background: radial-gradient(circle, rgba(196,149,106,0.30), transparent 66%); animation: drift3 46s ease-in-out infinite; }
@keyframes drift1 { 50% { transform: translate(6vw, 5vw) scale(1.08); } }
@keyframes drift2 { 50% { transform: translate(-5vw, -4vw) scale(1.1); } }
@keyframes drift3 { 50% { transform: translate(-4vw, 6vw) scale(0.94); } }

.grain {
    position: fixed; inset: 0; z-index: -1; pointer-events: none; opacity: 0.05;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
    mix-blend-mode: multiply;
}

h1, h2, h3 {
    font-family: var(--serif);
    color: var(--ink-87);
    font-weight: 500;
    line-height: 1.1;
    letter-spacing: -0.018em;
    margin: 0 0 0.4em;
}
p { margin: 0 0 1em; }
em { font-style: italic; color: var(--autumn); }

a { color: var(--sage); text-decoration: none; transition: color .25s ease; }
a:hover { color: var(--autumn); }

.wrap { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 var(--gutter); }

/* Eyebrow / kicker with hairline */
.kicker {
    font-family: var(--round);
    font-weight: 800;
    font-size: 0.78rem;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--ink-55);
    display: inline-flex;
    align-items: center;
    gap: 14px;
    margin: 0 0 1.6em;
}
.kicker::before { content: ""; width: 30px; height: 1px; background: var(--ink-25); }

/* ---------- Nav ---------- */
.nav {
    position: sticky; top: 0; z-index: 50;
    backdrop-filter: saturate(140%) blur(16px);
    -webkit-backdrop-filter: saturate(140%) blur(16px);
    background: rgba(253,251,247,0.72);
    border-bottom: 1px solid transparent;
    transition: border-color .3s ease, background .3s ease;
}
.nav.scrolled { border-bottom-color: var(--paper-line); background: rgba(253,251,247,0.86); }
.nav .wrap { display: flex; align-items: center; justify-content: space-between; height: 74px; }
.brand { display: flex; align-items: center; gap: 13px; }
.brand img { width: 34px; height: 34px; border-radius: 9px; display: block; box-shadow: 0 2px 8px -3px rgba(42,39,36,0.3); }
.brand b { font-family: var(--serif); color: var(--ink-87); font-weight: 600; font-size: 1.34rem; letter-spacing: -0.01em; }
.nav-links { display: flex; align-items: center; gap: 34px; }
.nav-links a { color: var(--ink-70); font-weight: 700; font-size: 0.94rem; letter-spacing: 0.01em; }
.nav-links a:hover { color: var(--ink-87); }
.lang { font-size: 0.84rem; font-weight: 800; color: var(--ink-25); letter-spacing: 0.06em; }
.lang a[aria-current="true"] { color: var(--ink-87); }

/* ---------- Buttons ---------- */
.btn {
    display: inline-flex; align-items: center; gap: 11px;
    background: var(--ink-87); color: var(--paper);
    padding: 15px 26px; border-radius: 999px;
    font-weight: 800; font-size: 1rem; letter-spacing: 0.01em;
    transition: transform .25s cubic-bezier(.2,.7,.3,1), background .25s ease, box-shadow .25s ease;
    box-shadow: 0 10px 30px -12px rgba(42,39,36,0.5);
}
.btn:hover { color: var(--paper); background: #17150F; transform: translateY(-2px); box-shadow: 0 16px 40px -14px rgba(42,39,36,0.55); }
.btn svg { width: 20px; height: 20px; fill: currentColor; }
.btn.ghost { background: transparent; color: var(--ink-70); box-shadow: none; border: 1px solid var(--paper-line); }
.btn.ghost:hover { color: var(--ink-87); background: var(--paper-warm); box-shadow: none; }
.hint { color: var(--ink-40); font-size: 0.9rem; font-weight: 700; letter-spacing: 0.02em; }

/* ---------- Hero ---------- */
.hero { padding: clamp(90px, 15vh, 170px) 0 clamp(70px, 10vh, 120px); text-align: center; }
.hero h1 {
    font-size: clamp(3rem, 8vw, 6rem);
    line-height: 1.02;
    letter-spacing: -0.03em;
    margin-bottom: 0.32em;
    max-width: 15ch;
    margin-left: auto; margin-right: auto;
}
.hero .lede {
    font-size: clamp(1.15rem, 2.2vw, 1.45rem);
    color: var(--ink-55);
    max-width: 46ch;
    margin: 0 auto 2.4em;
}
.cta-row { display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 18px; }

/* Seasonal spectrum — premium motif referencing the 8 seasonal themes */
.spectrum {
    height: 6px; width: min(760px, 88vw); margin: clamp(56px,9vh,96px) auto 0;
    border-radius: 999px; overflow: hidden;
    background: linear-gradient(90deg,
        var(--spring) 0%, var(--sage) 15%, var(--hanami) 32%,
        var(--winter) 50%, var(--summer) 66%, var(--autumn) 82%, var(--gold) 100%);
    opacity: 0.9;
    box-shadow: 0 8px 30px -14px rgba(184,120,67,0.5);
}
.spectrum-label { margin-top: 16px; font-size: 0.82rem; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase; color: var(--ink-40); }

/* ---------- Sections ---------- */
section { padding: clamp(72px, 11vh, 128px) 0; position: relative; }
.section-head { max-width: 660px; margin: 0 auto clamp(48px,7vh,76px); text-align: center; }
.section-head h2 { font-size: clamp(2rem, 4.4vw, 3.1rem); letter-spacing: -0.025em; }
.section-head p { color: var(--ink-55); font-size: 1.14rem; }

.rule { height: 1px; background: var(--paper-line); border: 0; max-width: var(--maxw); margin: 0 auto; }

/* Values — refined hairline cards */
.values { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--paper-line); border: 1px solid var(--paper-line); border-radius: 20px; overflow: hidden; }
.value { background: var(--paper); padding: 40px 30px; text-align: center; transition: background .3s ease; }
.value:hover { background: var(--paper-warm); }
.value .no { font-family: var(--serif); font-size: 1.5rem; color: var(--ink-87); margin-bottom: 10px; letter-spacing: -0.01em; }
.value p { font-size: 0.98rem; color: var(--ink-55); margin: 0; }

/* Features — editorial index list */
.features-list { max-width: 980px; margin: 0 auto; }
.feature {
    display: grid;
    grid-template-columns: 130px 1fr;
    gap: 40px;
    align-items: start;
    padding: clamp(38px,5vh,56px) 8px;
    border-top: 1px solid var(--paper-line);
    transition: background .35s ease;
}
.feature:last-child { border-bottom: 1px solid var(--paper-line); }
.feature:hover { background: linear-gradient(90deg, rgba(247,243,235,0.6), transparent 70%); }
.feature-index { display: flex; flex-direction: column; gap: 14px; }
.feature-index .num { font-family: var(--serif); font-size: 2rem; color: var(--ink-25); font-weight: 500; line-height: 1; }
.feature-index .glyph { font-size: 1.9rem; line-height: 1; }
.feature h3 { font-size: clamp(1.5rem, 3vw, 2.05rem); margin-bottom: 0.35em; letter-spacing: -0.02em; }
.feature p { color: var(--ink-55); margin: 0; max-width: 54ch; font-size: 1.06rem; }

/* Ecosystem */
.eco { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.card2 {
    background: rgba(253,251,247,0.7);
    border: 1px solid var(--paper-line);
    border-radius: 18px;
    padding: 30px 24px; text-align: center;
    transition: transform .3s cubic-bezier(.2,.7,.3,1), box-shadow .3s ease;
}
.card2:hover { transform: translateY(-4px); box-shadow: 0 20px 44px -26px rgba(42,39,36,0.35); }
.card2 .g { font-size: 1.8rem; display: block; margin-bottom: 12px; }
.card2 b { color: var(--ink-87); font-family: var(--serif); font-weight: 600; font-size: 1.1rem; display: block; margin-bottom: 5px; }
.card2 span { font-size: 0.92rem; color: var(--ink-55); }

/* Privacy — quiet centered statement */
.privacy { text-align: center; }
.privacy .badge {
    display: inline-block; border: 1px solid var(--sage); color: var(--sage);
    font-weight: 800; letter-spacing: 0.14em; text-transform: uppercase;
    padding: 8px 20px; border-radius: 999px; font-size: 0.78rem; margin-bottom: 28px;
}
.privacy h2 { font-size: clamp(2rem, 5vw, 3.4rem); letter-spacing: -0.025em; }
.privacy .line { max-width: 640px; margin: 0 auto; font-size: 1.2rem; color: var(--ink-55); }

/* Pricing — no numbers (App Store is source of truth) */
.plans { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; max-width: 820px; margin: 0 auto; }
.plan {
    background: rgba(253,251,247,0.72);
    border: 1px solid var(--paper-line);
    border-radius: 24px; padding: 40px 34px; position: relative;
    transition: transform .3s cubic-bezier(.2,.7,.3,1);
}
.plan:hover { transform: translateY(-4px); }
.plan.plus { border-color: var(--gold); box-shadow: 0 30px 60px -34px rgba(201,160,80,0.55); }
.plan h3 { font-size: 1.7rem; margin-bottom: 6px; }
.plan .sub { color: var(--ink-40); font-size: 0.98rem; font-weight: 700; margin: 0 0 24px; }
.plan ul { list-style: none; padding: 0; margin: 0; }
.plan li { padding: 8px 0 8px 28px; position: relative; color: var(--ink-70); font-size: 1rem; }
.plan li::before { content: "🍃"; position: absolute; left: 0; font-size: 0.85rem; opacity: 0.85; }
.plan .tag { position: absolute; top: -14px; left: 34px; background: var(--gold); color: #fff; font-size: 0.72rem; font-weight: 800; letter-spacing: 0.08em; padding: 6px 14px; border-radius: 999px; text-transform: uppercase; }
.plan .note { color: var(--ink-40); font-size: 0.84rem; margin: 22px 0 0; }

/* FAQ */
.faq { max-width: 780px; margin: 0 auto; }
.faq details { border-bottom: 1px solid var(--paper-line); padding: 22px 4px; }
.faq summary {
    font-family: var(--serif); font-size: 1.22rem; color: var(--ink-87); font-weight: 600;
    cursor: pointer; list-style: none; display: flex; justify-content: space-between; align-items: center; gap: 16px;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--ink-40); font-family: var(--round); font-weight: 700; font-size: 1.6rem; transition: transform .25s ease; }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details p { margin: 16px 2px 4px; color: var(--ink-55); }

/* Closing */
.closing { text-align: center; }
.closing h2 { font-size: clamp(2.2rem, 5.5vw, 4rem); letter-spacing: -0.03em; }
.closing .lede { color: var(--ink-55); font-size: 1.2rem; max-width: 40ch; margin: 0 auto 2.2em; }

/* Footer */
footer { border-top: 1px solid var(--paper-line); padding: 56px 0 68px; background: rgba(247,243,235,0.55); }
footer .wrap { display: flex; flex-wrap: wrap; gap: 24px; justify-content: space-between; align-items: center; }
footer .brand b { font-size: 1.14rem; }
.foot-links { display: flex; flex-wrap: wrap; gap: 28px; }
.foot-links a { color: var(--ink-55); font-weight: 700; font-size: 0.94rem; }
.copy { width: 100%; color: var(--ink-40); font-size: 0.86rem; margin-top: 10px; }
.copy .made { font-style: italic; }

/* ---------- Legal pages ---------- */
.legal { padding: clamp(56px, 9vh, 100px) 0 clamp(64px, 10vh, 110px); }
.legal .wrap { max-width: 760px; }
.legal .back { display: inline-flex; align-items: center; gap: 8px; font-weight: 700; font-size: 0.92rem; color: var(--ink-55); margin-bottom: 28px; }
.legal .back:hover { color: var(--ink-87); }
.legal article { font-size: 1.02rem; }
.legal h1 { font-size: clamp(2.1rem, 5vw, 3rem); letter-spacing: -0.025em; margin-bottom: 0.5em; }
.legal h2 { font-size: 1.5rem; margin: 2em 0 0.5em; padding-top: 1.4em; border-top: 1px solid var(--paper-line); }
.legal h3 { font-size: 1.16rem; margin: 1.6em 0 0.4em; color: var(--ink-70); }
.legal p { color: var(--ink-70); margin: 0 0 1.1em; }
.legal ul { margin: 0 0 1.2em; padding-left: 1.3em; }
.legal li { margin: 0.35em 0; color: var(--ink-70); }
.legal strong { color: var(--ink-87); font-weight: 800; }
.legal code { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 0.88em; background: var(--paper-warm); padding: 2px 6px; border-radius: 6px; color: var(--ink-70); }
.legal hr { border: 0; border-top: 1px solid var(--paper-line); margin: 2.2em 0; }
.legal .meta-block { color: var(--ink-40); font-size: 0.95rem; }
.legal .fine { font-style: italic; color: var(--ink-55); font-size: 0.94rem; }
.legal table { width: 100%; border-collapse: collapse; margin: 0 0 1.4em; font-size: 0.94rem; }
.legal th, .legal td { text-align: left; vertical-align: top; padding: 12px 14px; border: 1px solid var(--paper-line); }
.legal th { background: var(--paper-warm); color: var(--ink-87); font-weight: 800; }
.legal td { color: var(--ink-70); }
@media (max-width: 560px) {
    .legal table, .legal thead, .legal tbody, .legal th, .legal td, .legal tr { display: block; }
    .legal thead { display: none; }
    .legal tr { margin-bottom: 14px; border: 1px solid var(--paper-line); border-radius: 12px; overflow: hidden; }
    .legal td { border: 0; border-bottom: 1px solid var(--paper-line-2); }
    .legal td:last-child { border-bottom: 0; }
}

/* Scroll reveal */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .8s ease, transform .8s cubic-bezier(.2,.7,.3,1); }
.reveal.in { opacity: 1; transform: none; }

/* ---------- Responsive ---------- */
@media (max-width: 860px) {
    .values { grid-template-columns: repeat(2, 1fr); }
    .eco { grid-template-columns: repeat(2, 1fr); }
    .feature { grid-template-columns: 1fr; gap: 16px; }
    .feature-index { flex-direction: row; align-items: center; gap: 16px; }
    .plans { grid-template-columns: 1fr; }
    .nav-links a:not(.lang) { display: none; }
}
@media (max-width: 480px) {
    body { font-size: 17px; }
    .values { grid-template-columns: 1fr; }
    .eco { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, .orb { animation: none !important; transition: none !important; }
    .reveal { opacity: 1; transform: none; }
}