/* =========================================================================
   ai-skin-analysis.css — Free AI Skin Analysis (ai-skin-analysis.php).
   Everything is namespaced "ai-" and sits under .ai so it cannot leak into
   other pages. Loaded only on that page (see includes/header.php).
   ========================================================================= */
.ai {
    --ai-light:   #E8EFE5;
    --ai-soft:    #C8D7C4;
    --ai-muted:   #5F7F66;   /* darker than the mockup's #78947B so small labels stay readable */
    --ai-forest:  #244A35;
    --ai-deep:    #1A3627;
    --ai-off:     #FAF9F5;
    --ai-text:    #1E2B22;
    --ai-text-2:  #445649;
    --ai-line:    rgba(120,148,123,.35);
    --ai-shadow:  0 16px 36px -12px rgba(36,74,53,.10);
    --ai-serif:   var(--kg-heading-font, 'Cormorant Garamond', Georgia, serif);
    --ai-sans:    var(--kg-body-font, 'Inter', 'Poppins', sans-serif);
    background: var(--ai-light);
    color: var(--ai-text);
    font-family: var(--ai-sans);
    overflow-x: clip;
}
.ai *, .ai *::before, .ai *::after { box-sizing: border-box; }
.ai svg { width: 1em; height: 1em; flex-shrink: 0; }
.ai a { text-decoration: none; }
/* :where() keeps this reset at zero specificity so .ai-lede-c, .ai-body, .ai-h2 etc. margins actually apply */
:where(.ai) :where(h1, h2, h3, p) { margin: 0; }

/* ---------- Shared type ---------- */
.ai-h1, .ai-h2, .ai-card h3, .ai-faq-q span:first-child { font-family: var(--ai-serif); color: var(--ai-forest); font-weight: 500; }
.ai-h1 { font-size: clamp(38px, 5.4vw, 66px); line-height: 1.1; letter-spacing: -.01em; margin: 20px 0 18px; }
.ai-h1 em, .ai-h2 em { font-style: italic; font-weight: 400; color: var(--ai-text-2); }
.ai-h2 { font-size: clamp(30px, 3.9vw, 50px); line-height: 1.15; margin: 12px 0 0; }
.ai-lede { font-size: clamp(15px, 1.5vw, 18px); font-weight: 300; line-height: 1.75; max-width: 640px; color: rgba(30,43,34,.9); }
.ai-lede-c { margin-left: auto; margin-right: auto; }
.ai-body { margin-top: 22px; font-size: clamp(15px, 1.4vw, 17px); font-weight: 300; line-height: 1.8; color: rgba(30,43,34,.9); }
.ai-body-sm { font-size: 14.5px; color: var(--ai-text-2); margin-top: 16px; }
.ai-eyebrow { display: inline-flex; align-items: center; gap: 10px; font-size: 11.5px; letter-spacing: .24em; text-transform: uppercase; font-weight: 600; color: var(--ai-muted); }
.ai-eyebrow i { width: 24px; height: 1.5px; background: var(--ai-muted); }
.ai-eyebrow-c { justify-content: center; }
.ai-label { font-size: 11px; letter-spacing: .15em; text-transform: uppercase; font-weight: 600; color: var(--ai-forest); }

/* ---------- Sections ---------- */
.ai-sec { padding: clamp(64px, 9vw, 116px) 0; border-bottom: 1px solid var(--ai-line); background: var(--ai-light); }
.ai-sec-alt { background: var(--ai-off); }
.ai-head { text-align: center; max-width: 720px; margin: 0 auto clamp(40px, 6vw, 68px); }
.ai-center { text-align: center; }
.ai-narrow { max-width: 860px; width: 100%; margin-left: auto; margin-right: auto; }
.ai-narrow-lg { max-width: 900px; width: 100%; margin-left: auto; margin-right: auto; }
.ai-center .ai-narrow > * + * { margin-top: 22px; }
.ai-center .ai-narrow > .ai-h2 { margin-top: 14px; }
.ai-rule { display: block; width: 48px; height: 1px; background: rgba(120,148,123,.5); margin: 26px auto !important; }
.ai-note { display: inline-block; max-width: 580px; padding: 16px 24px; border-radius: 14px; border: 1px solid var(--ai-line);
    background: rgba(232,239,229,.7); font-size: 12.5px; font-weight: 300; line-height: 1.75; color: var(--ai-text-2); }

/* ---------- Hero ---------- */
.ai-hero { position: relative; padding: clamp(56px, 8vw, 104px) 0 clamp(64px, 9vw, 112px); background: var(--ai-light); border-bottom: 1px solid var(--ai-line); overflow: hidden; }
.ai-dots { position: absolute; inset: 0; opacity: .25; pointer-events: none;
    background: radial-gradient(#78947B 1.2px, transparent 1.2px) 0 0 / 32px 32px; }
.ai-hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: 7fr 5fr; gap: clamp(32px, 5vw, 64px); align-items: center; }
.ai-pill { display: inline-flex; align-items: center; gap: 10px; padding: 7px 16px; border-radius: 999px; border: 1px solid var(--ai-line);
    background: rgba(200,215,196,.5); color: var(--ai-forest); font-size: 11.5px; font-weight: 600; letter-spacing: .15em; text-transform: uppercase; }
.ai-pill i { width: 6px; height: 6px; border-radius: 50%; background: var(--ai-forest); }
.ai-strip { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-top: 30px; padding-top: 26px; border-top: 1px solid var(--ai-line);
    font-size: 12.5px; line-height: 1.6; color: rgba(30,43,34,.85); }
.ai-strip > div { background: rgba(250,249,245,.95); border: 1px solid var(--ai-line); border-radius: 14px; padding: 16px; box-shadow: var(--ai-shadow); }
.ai-strip b { display: block; margin-bottom: 4px; font-size: 11px; letter-spacing: .15em; text-transform: uppercase; color: var(--ai-forest); font-weight: 600; }
.ai-cta-row { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 30px; }
.ai-cta-center { justify-content: center; margin-top: 34px; }
.ai-btn { display: inline-flex; align-items: center; gap: 10px; padding: 14px 26px; border-radius: 999px; font-size: 13px; font-weight: 500;
    border: 1px solid transparent; transition: background .2s, color .2s, border-color .2s; }
.ai-btn svg { font-size: 15px; }
.ai-btn-solid { background: var(--ai-forest); color: var(--ai-off); }
.ai-btn-solid:hover { background: var(--ai-deep); color: #fff; }
.ai-btn-soft { background: rgba(200,215,196,.4); border-color: var(--ai-line); color: var(--ai-forest); }
.ai-btn-soft:hover { background: var(--ai-soft); }
.ai-btn-caps { font-size: 11.5px; letter-spacing: .15em; text-transform: uppercase; }

.ai-hero-media { position: relative; max-width: 460px; width: 100%; margin: 0 auto; }
.ai-frame-under { position: absolute; inset: -16px; background: rgba(200,215,196,.7); border-radius: 28px; transform: rotate(-1deg); }
.ai-photo { position: relative; overflow: hidden; border-radius: 20px; border: 1px solid var(--ai-line); box-shadow: var(--ai-shadow); background: var(--ai-off); aspect-ratio: 4 / 5; }
.ai-photo img { width: 100%; height: 100%; object-fit: cover; object-position: center; display: block; }
.ai-photo-wide { aspect-ratio: 5 / 4; border-radius: 26px; }
.ai-sweep { position: absolute; inset: 0; overflow: hidden; pointer-events: none; }
.ai-sweep span { display: block; width: 100%; height: 128px; background: linear-gradient(to bottom, transparent, rgba(200,215,196,.4), transparent); animation: aiSweep 7s ease-in-out infinite; }
.ai-photo-ui { position: absolute; inset: 0; padding: 26px; display: flex; flex-direction: column; justify-content: space-between; pointer-events: none; }
.ai-photo-top { display: flex; justify-content: space-between; align-items: flex-start; }
.ai-photo-bottom { display: flex; justify-content: flex-end; }
.ai-tag { font-size: 10px; letter-spacing: .15em; text-transform: uppercase; color: var(--ai-forest); background: rgba(250,249,245,.92); padding: 5px 12px; border-radius: 999px; border: 1px solid var(--ai-line); }
.ai-ring { width: 32px; height: 32px; border-radius: 50%; border: 1px solid rgba(36,74,53,.4); display: grid; place-items: center; animation: aiPulse 5s ease-in-out infinite; }
.ai-ring i { width: 8px; height: 8px; border-radius: 50%; background: rgba(36,74,53,.6); }
.ai-float-badge { position: absolute; left: -24px; bottom: -24px; max-width: 280px; padding: 18px 20px; border-radius: 18px;
    background: rgba(250,249,245,.96); border: 1px solid var(--ai-line); box-shadow: var(--ai-shadow); }
.ai-float-badge small { display: block; margin-bottom: 4px; font-size: 10px; letter-spacing: .15em; text-transform: uppercase; font-weight: 600; color: var(--ai-muted); }
.ai-float-badge p { font-family: var(--ai-serif); font-style: italic; font-size: 17px; line-height: 1.35; color: var(--ai-forest); }

@keyframes aiSweep { 0% { transform: translateY(-100%); opacity: 0; } 30%, 70% { opacity: .55; } 100% { transform: translateY(560%); opacity: 0; } }
@keyframes aiPulse { 0%, 100% { transform: scale(.98); opacity: .35; } 50% { transform: scale(1.03); opacity: .8; } }

/* ---------- Intro ---------- */
.ai-intro-grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(32px, 5vw, 64px); align-items: center; }
.ai-quote { margin: 30px 0 0; padding: 22px 24px; border-radius: 16px; border: 1px solid var(--ai-line); border-left: 2px solid var(--ai-forest); background: rgba(232,239,229,.6); }
.ai-quote p { font-family: var(--ai-serif); font-style: italic; font-size: 21px; line-height: 1.4; color: var(--ai-forest); }
.ai-quote cite { display: block; margin-top: 8px; font-style: normal; font-size: 11px; letter-spacing: .15em; text-transform: uppercase; font-weight: 500; color: var(--ai-muted); }

/* ---------- Cards ---------- */
.ai-grid { display: grid; gap: 28px; }
.ai-grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.ai-card { border-radius: 18px; border: 1px solid var(--ai-line); box-shadow: var(--ai-shadow); transition: transform .3s, box-shadow .3s, background .2s, border-color .2s; }
.ai-card h3 { font-size: 25px; line-height: 1.2; margin-bottom: 10px; }
.ai-card p { font-size: 14px; font-weight: 300; line-height: 1.75; color: rgba(30,43,34,.82); }
.ai-step, .ai-benefit { background: var(--ai-off); padding: clamp(26px, 3vw, 36px); display: flex; flex-direction: column; }
.ai-step { justify-content: space-between; }
.ai-step:hover { transform: translateY(-6px); box-shadow: 0 24px 44px -12px rgba(36,74,53,.16); }
.ai-benefit:hover { border-color: var(--ai-muted); }
.ai-step-top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 28px; }
.ai-num { font-family: var(--ai-serif); font-size: 40px; font-weight: 300; color: var(--ai-muted); line-height: 1; }
.ai-ico { width: 48px; height: 48px; border-radius: 50%; border: 1px solid var(--ai-line); background: var(--ai-light); display: grid; place-items: center; color: var(--ai-forest); font-size: 20px; }
.ai-ico-sq { width: 44px; height: 44px; border-radius: 12px; margin-bottom: 22px; }
.ai-ico-round { width: 48px; height: 48px; margin: 0 auto 8px; background: rgba(200,215,196,.4); border: 0; font-size: 24px; }
.ai-step-foot { display: flex; align-items: center; gap: 8px; margin-top: 30px; padding-top: 22px; border-top: 1px solid rgba(200,215,196,.7);
    font-size: 11px; letter-spacing: .15em; text-transform: uppercase; font-weight: 500; color: var(--ai-muted); }
.ai-step-foot i { width: 6px; height: 6px; border-radius: 50%; background: var(--ai-forest); }
.ai-param { background: rgba(200,215,196,.25); padding: 30px; }
.ai-param:hover { background: rgba(200,215,196,.5); border-color: var(--ai-muted); }
.ai-param-top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 16px; }
.ai-param-ico { color: var(--ai-muted); font-size: 20px; display: inline-flex; }
.ai-advisory { margin-top: 44px; text-align: center; }
.ai-advisory span { display: inline-flex; align-items: center; gap: 8px; padding: 10px 20px; border-radius: 999px; border: 1px solid var(--ai-line); background: var(--ai-light);
    font-size: 12.5px; font-weight: 500; color: var(--ai-forest); }
.ai-advisory svg { font-size: 16px; }

/* ---------- FAQ ---------- */
.ai-faq { display: grid; gap: 16px; }
.ai-faq-item { background: var(--ai-off); border: 1px solid var(--ai-line); border-radius: 18px; box-shadow: var(--ai-shadow); overflow: hidden; }
.ai-faq-q { all: unset; box-sizing: border-box; width: 100%; padding: 22px 28px; display: flex; align-items: center; justify-content: space-between; gap: 16px; cursor: pointer; }
.ai-faq-q span:first-child { font-size: clamp(19px, 2vw, 24px); line-height: 1.25; }
.ai-faq-q:focus-visible { outline: 2px solid rgba(36,74,53,.5); outline-offset: -2px; border-radius: 18px; }
.ai-faq-ico { width: 32px; height: 32px; border-radius: 50%; border: 1px solid var(--ai-line); background: var(--ai-light); color: var(--ai-forest); display: grid; place-items: center; flex-shrink: 0; transition: transform .3s; font-size: 16px; }
.ai-faq-a { padding: 0 28px 24px; font-size: 14.5px; font-weight: 300; line-height: 1.8; color: rgba(30,43,34,.85); }
.ai-faq-a p { margin: 0; }
/* Collapse only when JS is running, so answers stay readable without it. */
.ai-faq.ai-js .ai-faq-a { display: grid; grid-template-rows: 0fr; padding-bottom: 0; transition: grid-template-rows .4s cubic-bezier(.4,0,.2,1), padding .4s; }
.ai-faq.ai-js .ai-faq-a > div { overflow: hidden; }
.ai-faq.ai-js .is-open .ai-faq-a { grid-template-rows: 1fr; padding-bottom: 24px; }
.ai-faq.ai-js .is-open .ai-faq-ico { transform: rotate(45deg); }

/* ---------- Notice ---------- */
.ai-notice { background: var(--ai-forest); color: rgba(250,249,245,.85); padding: 40px 0; }
.ai-notice .kg-container { max-width: 920px; }
.ai-notice p { font-size: 12px; font-weight: 300; line-height: 1.8; color: rgba(200,215,196,.9); }
.ai-notice p + p { margin-top: 8px; }
.ai-notice strong { color: var(--ai-off); font-weight: 600; }

/* ---------- Responsive ---------- */
@media (max-width: 1000px) {
    .ai-hero-grid, .ai-intro-grid { grid-template-columns: 1fr; }
    .ai-grid-3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .ai-float-badge { left: 12px; bottom: -20px; }
}
@media (max-width: 720px) {
    .ai-grid-3, .ai-strip { grid-template-columns: 1fr; }
    .ai-float-badge { display: none; }
    .ai-faq-q { padding: 18px 20px; }
    .ai-faq-a { padding-left: 20px; padding-right: 20px; }
    .ai-btn { width: 100%; justify-content: center; }
}
@media (prefers-reduced-motion: reduce) {
    .ai-sweep span, .ai-ring { animation: none; }
    .ai-card, .ai-faq-ico, .ai-faq.ai-js .ai-faq-a { transition: none; }
}

/* =========================================================================
   DARK THEME — cards + selected sections
   Cards (.ai-card, hero strip, FAQ items, floating badge) are dark forest
   everywhere. "How it works" (#ai-how) and "Esthetician's role"
   (#ai-expertise) are full dark sections. Palette matches the rest of the
   site (kaaya-editorial.css: black #051F20 / charcoal #0B2B26 / deep
   #163832 / moss #235347 / sage #8EB69B).
   ========================================================================= */
.ai {
    --ai-night:      #051F20;
    --ai-charcoal:   #0B2B26;
    --ai-deep-card:  #163832;
    --ai-moss:       #235347;
    --ai-sage:       #8EB69B;
    --ai-mist:       #C9E4D2;
    --ai-dline:      rgba(142,182,155,.28);
    --ai-dshadow:    0 18px 40px -14px rgba(5,31,32,.55);
}

/* ---------- Dark sections ---------- */
.ai-sec-dark {
    position: relative;
    background: radial-gradient(120% 80% at 50% 0%, #163832 0%, #0B2B26 45%, #051F20 100%);
    border-bottom-color: rgba(142,182,155,.18);
    color: var(--ai-mist);
}
.ai-sec-dark::before { /* faint dot grid, same motif as the hero */
    content: ""; position: absolute; inset: 0; opacity: .12; pointer-events: none;
    background: radial-gradient(#8EB69B 1.2px, transparent 1.2px) 0 0 / 32px 32px;
}
.ai-sec-dark > .kg-container { position: relative; z-index: 1; }
.ai-sec-dark .ai-h2 { color: #fff; }
.ai-sec-dark .ai-h2 em { color: var(--ai-sage); }
.ai-sec-dark .ai-eyebrow { color: var(--ai-sage); }
.ai-sec-dark .ai-eyebrow i { background: var(--ai-sage); }
.ai-sec-dark .ai-body, .ai-sec-dark .ai-body-sm, .ai-sec-dark .ai-lede { color: rgba(201,228,210,.9); }
.ai-sec-dark .ai-rule { background: rgba(142,182,155,.55); }
.ai-sec-dark .ai-ico-round { background: rgba(142,182,155,.16); color: var(--ai-mist); border: 1px solid var(--ai-dline); }
.ai-sec-dark .ai-note { background: rgba(5,31,32,.55); border-color: var(--ai-dline); color: rgba(201,228,210,.85); }

/* ---------- Dark cards ---------- */
.ai-card, .ai-step, .ai-benefit, .ai-param {
    background: linear-gradient(160deg, #163832 0%, #0B2B26 100%);
    border-color: var(--ai-dline);
    box-shadow: var(--ai-dshadow);
    color: var(--ai-mist);
}
.ai-card h3 { color: #fff; }
.ai-card p { color: rgba(201,228,210,.84); }
.ai-step:hover { box-shadow: 0 26px 48px -14px rgba(5,31,32,.7); border-color: rgba(142,182,155,.55); }
.ai-benefit:hover, .ai-param:hover { background: linear-gradient(160deg, #1d4640 0%, #0F3029 100%); border-color: var(--ai-sage); }
.ai-num { color: var(--ai-sage); }
.ai-ico { background: rgba(142,182,155,.14); border-color: var(--ai-dline); color: var(--ai-mist); }
.ai-step-foot { border-top-color: rgba(142,182,155,.22); color: var(--ai-sage); }
.ai-step-foot i { background: var(--ai-sage); }
.ai-label { color: var(--ai-sage); }
.ai-param-ico { color: var(--ai-sage); }

/* Cards sitting on a dark section need to lift off the background. */
.ai-sec-dark .ai-card, .ai-sec-dark .ai-step {
    background: linear-gradient(160deg, rgba(35,83,71,.55) 0%, rgba(11,43,38,.9) 100%);
    border-color: rgba(142,182,155,.32);
}

/* ---------- Hero strip + floating badge ---------- */
.ai-strip { border-top-color: var(--ai-line); }
.ai-strip > div {
    background: linear-gradient(160deg, #163832 0%, #0B2B26 100%);
    border-color: var(--ai-dline); box-shadow: var(--ai-dshadow); color: rgba(201,228,210,.88);
}
.ai-strip b { color: #fff; }
.ai-float-badge { background: rgba(5,31,32,.94); border-color: var(--ai-dline); box-shadow: var(--ai-dshadow); }
.ai-float-badge small { color: var(--ai-sage); }
.ai-float-badge p { color: #fff; }

/* ---------- Quote + advisory pill ---------- */
.ai-quote { background: linear-gradient(160deg, #163832 0%, #0B2B26 100%); border-color: var(--ai-dline); border-left-color: var(--ai-sage); box-shadow: var(--ai-dshadow); }
.ai-quote p { color: #fff; }
.ai-quote cite { color: var(--ai-sage); }
.ai-advisory span { background: var(--ai-charcoal); border-color: var(--ai-dline); color: var(--ai-mist); }

/* ---------- FAQ ---------- */
.ai-faq-item { background: linear-gradient(160deg, #163832 0%, #0B2B26 100%); border-color: var(--ai-dline); box-shadow: var(--ai-dshadow); }
.ai-faq-q span:first-child { color: #fff; }
.ai-faq-q:focus-visible { outline-color: var(--ai-sage); }
.ai-faq-ico { background: rgba(142,182,155,.14); border-color: var(--ai-dline); color: var(--ai-mist); }
.ai-faq-a { color: rgba(201,228,210,.88); }

/* ---------- Buttons on dark sections ---------- */
.ai-sec-dark .ai-btn-solid { background: var(--ai-sage); color: var(--ai-night); }
.ai-sec-dark .ai-btn-solid:hover { background: var(--ai-mist); }
.ai-sec-dark .ai-btn-soft { background: rgba(142,182,155,.12); border-color: var(--ai-dline); color: var(--ai-mist); }
.ai-sec-dark .ai-btn-soft:hover { background: rgba(142,182,155,.24); }

/* Centre every block inside the centred sections (icon, eyebrow, lede, note). */
.ai-center .ai-narrow { display: flex; flex-direction: column; align-items: center; text-align: center; }
.ai-center .ai-lede, .ai-center .ai-note { margin-left: auto; margin-right: auto; }