/* ============================================================
   Vizéa — style.css
   Clinical, confident, alive. Deep navy + signal blue + an
   electric cyan accent for "neural" energy. Fraunces (display)
   + Inter (UI). Motion is deliberate and respects reduced-motion.
   ============================================================ */

:root {
  --navy: #0a2540;
  --navy-700: #0f3a63;
  --blue-900: #0f4c8a;
  --blue-700: #176bb5;
  --blue-500: #2b8aef;
  --blue-100: #e8f1fb;
  --blue-050: #f4f8fd;
  --cyan: #25d0e0;
  --cyan-deep: #11a8bd;
  --ink: #142233;
  --ink-soft: #51606e;
  --line: #e4ebf2;
  --bg: #f6fafd;
  --white: #fff;
  --green: #2e9e5b;
  --green-soft: #e3f6ea;
  --danger: #c0392b;
  --danger-soft: #fcebe9;
  --amber: #b9791b;
  --amber-soft: #fdf3e0;
  --warn-bg: #fff6e0;
  --warn-ink: #8a6400;
  --shadow-sm: 0 1px 3px rgba(10, 37, 64, .06), 0 1px 2px rgba(10, 37, 64, .04);
  --shadow-md: 0 10px 34px rgba(10, 37, 64, .12);
  --shadow-lg: 0 24px 60px rgba(10, 37, 64, .18);
  --radius: 16px;
  --radius-sm: 10px;
  --maxw: 1180px;
  /* themeable accents used in a few gradients */
  --hero-tint-1: rgba(37, 208, 224, .14);
  --hero-tint-2: var(--blue-100);
  --header-grad: linear-gradient(105deg, var(--navy) 0%, var(--blue-900) 60%, var(--blue-700) 100%);
  color-scheme: light;
}

/* ============================================================
   DARK THEME — same blue/cyan identity on deep navy surfaces.
   Only variables are overridden, so the whole UI adapts cleanly.
   ============================================================ */
[data-theme="dark"] {
  --navy: #0a1622;
  --navy-700: #14263a;
  --blue-900: #2d7fc9;
  --blue-700: #3a93dd;
  --blue-500: #4ea3ec;
  --blue-100: #16314a;
  --blue-050: #14283c;
  --cyan: #2fdaea;
  --cyan-deep: #34c7da;
  --ink: #e8eef4;
  --ink-soft: #9db2c6;
  --line: #25394d;
  --bg: #0c1722;
  --white: #14222f;          /* card / surface colour in dark mode */
  --green: #3ec06f;
  --green-soft: #15301f;
  --danger: #e26d60;
  --danger-soft: #3a1f1c;
  --amber: #e0a040;
  --amber-soft: #33271180;
  --warn-bg: #2a2412;
  --warn-ink: #e7c98a;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, .4);
  --shadow-md: 0 10px 34px rgba(0, 0, 0, .5);
  --shadow-lg: 0 24px 60px rgba(0, 0, 0, .6);
  --hero-tint-1: rgba(37, 208, 224, .10);
  --hero-tint-2: rgba(22, 49, 74, .6);
  --header-grad: linear-gradient(105deg, #06101b 0%, #0e2438 60%, #14304a 100%);
  color-scheme: dark;
}
[data-theme="dark"] .feature-icon { background: linear-gradient(135deg, var(--blue-100), #1b3c5a); }
[data-theme="dark"] .btn-soft:hover { background: #1b3c5a; }
[data-theme="dark"] .home-cta { background: linear-gradient(120deg, #06101b, #0e2438); }
[data-theme="dark"] .pc-label { color: var(--ink-soft); }
[data-theme="dark"] .scroll-cue { border-color: rgba(255,255,255,.25); }
[data-theme="dark"] .profile-card { background: var(--white); }

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

body {
  font-family: "Inter", system-ui, sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  transition: background-color .35s ease, color .35s ease;
}
/* surfaces ease between themes too */
.card, header, footer, .viz-panel, .stepnav-inner, input, textarea, select,
.import-tile, .condition-row, .seg button, .modal-card, .feature {
  transition: background-color .35s ease, color .35s ease, border-color .35s ease;
}

h1, h2, h3 { font-family: "Fraunces", Georgia, serif; line-height: 1.12; color: var(--ink); letter-spacing: -.01em; }
h2 { font-size: clamp(1.6rem, 3vw, 2.1rem); font-weight: 600; margin: 0 0 .4em; }
h3 { font-size: 1.22rem; font-weight: 600; margin: 1.4em 0 .4em; color: var(--blue-900); }
p { margin: 0 0 1em; }
.muted { color: var(--ink-soft); }
.small { font-size: .88rem; }

/* ---------- Header ---------- */
header {
  height: 74px; flex: none;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 clamp(16px, 4vw, 44px);
  background: var(--header-grad);
  color: #fff; position: sticky; top: 0; z-index: 1000;
  box-shadow: 0 1px 0 rgba(255, 255, 255, .06), 0 6px 24px rgba(10, 37, 64, .28);
}

.logo-area { display: flex; align-items: center; gap: 11px; cursor: pointer; user-select: none; }
.logo-area:focus-visible { outline: 2px solid var(--cyan); outline-offset: 4px; border-radius: 8px; }
.logo-mark { width: 38px; height: 38px; color: #fff; overflow: visible; }
.logo-mark .brain-outline { stroke-dasharray: 220; stroke-dashoffset: 0; }
.logo-mark .brain-node { fill: var(--cyan); transform-origin: center; transform-box: fill-box; }
.logo-area:hover .logo-mark .brain-node { animation: nodePulse 1.4s ease-in-out infinite; }
.logo-area:hover .logo-mark .n2 { animation-delay: .25s; }
.logo-area:hover .logo-mark .n3 { animation-delay: .5s; }
@keyframes nodePulse {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.45); opacity: .7; }
}
.logo-word { font-family: "Fraunces", serif; font-weight: 600; font-size: 1.34rem; letter-spacing: .2px; color: #fff; }
.logo-x { color: var(--cyan); }

.header-right { display: flex; align-items: center; gap: 6px; }
.theme-toggle { display: inline-grid; place-items: center; width: 38px; height: 38px; border-radius: 10px; background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.16); color: #dceaf8; cursor: pointer; transition: background .15s, color .15s; flex: none; }
.theme-toggle:hover { background: rgba(255,255,255,.16); color: #fff; }
.theme-toggle svg { width: 19px; height: 19px; }
.theme-toggle .ico-moon { display: none; }
[data-theme="dark"] .theme-toggle .ico-sun { display: none; }
[data-theme="dark"] .theme-toggle .ico-moon { display: block; }

nav { display: flex; gap: 2px; }
nav a {
  padding: 9px 14px; color: #cfe2f6; text-decoration: none; border-radius: 9px;
  font-weight: 500; font-size: .95rem; cursor: pointer; position: relative; transition: color .15s;
}
nav a::after {
  content: ""; position: absolute; left: 14px; right: 14px; bottom: 5px; height: 2px;
  background: var(--cyan); border-radius: 2px; transform: scaleX(0); transform-origin: left; transition: transform .22s ease;
}
nav a:hover { color: #fff; }
nav a:hover::after, nav a.active::after { transform: scaleX(1); }
nav a.active { color: #fff; }

.nav-toggle { display: none; flex-direction: column; gap: 5px; background: transparent; border: 0; cursor: pointer; padding: 6px; }
.nav-toggle span { width: 24px; height: 2px; background: var(--white); border-radius: 2px; transition: .25s; }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Routed pages ---------- */
main { flex: 1 0 auto; }
.page { display: none; }
.page.active { display: block; animation: fadeUp .4s ease; }
@keyframes fadeUp { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }

.page-narrow { max-width: 880px; margin: 40px auto; padding: 0 18px; }

.card {
  background: var(--white); border: 1px solid var(--line); border-radius: var(--radius);
  padding: clamp(20px, 3vw, 34px); box-shadow: var(--shadow-sm); margin-bottom: 22px;
}

/* ---------- Hero ---------- */
.hero {
  position: relative; overflow: hidden;
  padding: clamp(48px, 7vw, 92px) clamp(20px, 5vw, 44px) clamp(60px, 8vw, 110px);
  background:
    radial-gradient(90% 80% at 78% 8%, var(--hero-tint-1) 0%, transparent 55%),
    radial-gradient(120% 110% at 12% 0%, var(--hero-tint-2) 0%, transparent 62%);
}
.hero-grid {
  max-width: var(--maxw); margin: 0 auto; position: relative; z-index: 2;
  display: grid; grid-template-columns: 1.05fr .95fr; gap: clamp(28px, 5vw, 64px); align-items: center;
}
.hero-eyebrow {
  display: inline-flex; align-items: center; gap: 9px; text-transform: uppercase;
  letter-spacing: .13em; font-size: .76rem; font-weight: 600; color: var(--blue-900);
  background: rgba(255, 255, 255, .7); border: 1px solid var(--line); padding: 7px 14px; border-radius: 999px;
  margin-bottom: 22px; backdrop-filter: blur(4px);
}
.hero-eyebrow .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 0 0 rgba(37, 208, 224, .6); animation: ping 2.4s ease-out infinite; }
@keyframes ping { 0% { box-shadow: 0 0 0 0 rgba(37, 208, 224, .5); } 70%, 100% { box-shadow: 0 0 0 9px rgba(37, 208, 224, 0); } }

.hero-title { font-size: clamp(2.3rem, 5vw, 3.7rem); font-weight: 600; margin: 0 0 .32em; }
.accent-word { position: relative; color: var(--blue-700); white-space: nowrap; }
.accent-word::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: .08em; height: .26em;
  background: linear-gradient(90deg, var(--cyan), var(--blue-500)); opacity: .35; border-radius: 3px; z-index: -1;
  transform: scaleX(0); transform-origin: left; animation: underline 1s .5s ease forwards;
}
@keyframes underline { to { transform: scaleX(1); } }
.slogan { font-size: clamp(1.05rem, 1.8vw, 1.28rem); color: var(--ink-soft); max-width: 560px; margin: 0 0 30px; text-align: justify; hyphens: auto; }
.hero-buttons { display: flex; gap: 18px; align-items: center; flex-wrap: wrap; }
.hero-note {
  display: flex; align-items: center; gap: 9px; margin-top: 30px; font-size: .85rem; color: var(--ink-soft); max-width: 480px;
}
.hero-note .inline-ico { width: 17px; height: 17px; color: var(--cyan-deep); flex: none; }
.btn-link { color: var(--blue-900); text-decoration: none; font-weight: 600; cursor: pointer; border-bottom: 2px solid transparent; transition: border .15s; }
.btn-link:hover { border-color: var(--cyan); }

/* hero animated profile card */
.hero-visual { position: relative; }
.profile-card {
  background: var(--white); border: 1px solid var(--line); border-radius: 20px; padding: 16px 16px 12px;
  box-shadow: var(--shadow-lg); position: relative; transform: rotate(-1.4deg);
  animation: floatCard 7s ease-in-out infinite;
}
@keyframes floatCard { 0%, 100% { transform: rotate(-1.4deg) translateY(0); } 50% { transform: rotate(-1.4deg) translateY(-10px); } }
.profile-card-head { display: flex; align-items: center; gap: 6px; padding: 2px 4px 12px; }
.pc-dot { width: 9px; height: 9px; border-radius: 50%; background: var(--line); }
.pc-dot:nth-child(1) { background: #ff6b5e; } .pc-dot:nth-child(2) { background: #ffc04d; } .pc-dot:nth-child(3) { background: #4fd07a; }
.pc-label { margin-left: auto; font-size: .78rem; font-weight: 600; color: var(--ink-soft); letter-spacing: .02em; }
.profile-svg { width: 100%; height: 220px; display: block; border-radius: 12px; overflow: hidden; }
.profile-svg .bands rect:nth-child(1) { fill: #ef7ab5; } .profile-svg .bands rect:nth-child(2) { fill: #8d8fd1; }
.profile-svg .bands rect:nth-child(3) { fill: #2f8fc0; } .profile-svg .bands rect:nth-child(4) { fill: #8bc564; }
.profile-svg .bands rect:nth-child(5) { fill: #f6c648; } .profile-svg .bands rect:nth-child(6) { fill: #f39a1f; }
.profile-svg .bands rect:nth-child(7) { fill: #e8453c; }
.profile-svg .bands rect { opacity: .22; }
.profile-line {
  fill: none; stroke: var(--blue-900); stroke-width: 3.5; stroke-linejoin: round; stroke-linecap: round;
  stroke-dasharray: 900; stroke-dashoffset: 900; animation: draw 2.1s .35s cubic-bezier(.5, 0, .2, 1) forwards;
  filter: drop-shadow(0 3px 5px rgba(15, 76, 138, .25));
}
@keyframes draw { to { stroke-dashoffset: 0; } }
.profile-nodes circle { fill: #fff; stroke: var(--blue-900); stroke-width: 3; opacity: 0; animation: nodeIn .4s ease forwards; }
.profile-nodes circle:nth-child(1) { animation-delay: .7s; } .profile-nodes circle:nth-child(2) { animation-delay: .95s; }
.profile-nodes circle:nth-child(3) { animation-delay: 1.2s; } .profile-nodes circle:nth-child(4) { animation-delay: 1.45s; }
.profile-nodes circle:nth-child(5) { animation-delay: 1.7s; } .profile-nodes circle:nth-child(6) { animation-delay: 1.95s; }
.profile-nodes circle:nth-child(7) { animation-delay: 2.2s; }
@keyframes nodeIn { from { opacity: 0; transform: scale(0); } to { opacity: 1; transform: scale(1); } }
.profile-nodes circle { transform-origin: center; transform-box: fill-box; }
.profile-axis { display: flex; justify-content: space-between; padding: 8px 6px 2px; font-size: .68rem; color: var(--ink-soft); font-weight: 500; }

.step1-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; align-items: start; }
.step1-grid .card { margin: 0; }
@media (max-width: 760px) { .step1-grid { grid-template-columns: 1fr; } }

.neural-bg {
  position: absolute; top: 0; left: 0; width: 100%; height: 100%;
  z-index: 0; pointer-events: none;
}
/* body becomes the positioning context + stacking base for the bg canvas */
body { position: relative; }
header, main, footer { position: relative; z-index: 1; }

.scroll-cue { position: absolute; bottom: 26px; left: 50%; transform: translateX(-50%); width: 24px; height: 38px; border: 2px solid rgba(15, 76, 138, .3); border-radius: 13px; z-index: 2; }
.scroll-cue span { position: absolute; top: 7px; left: 50%; width: 4px; height: 7px; margin-left: -2px; background: var(--blue-700); border-radius: 2px; animation: scrolly 1.8s ease-in-out infinite; }
@keyframes scrolly { 0% { opacity: 0; transform: translateY(0); } 30% { opacity: 1; } 100% { opacity: 0; transform: translateY(12px); } }

/* ---------- Home features + CTA ---------- */
.home-features {
  max-width: var(--maxw); margin: clamp(20px, 4vw, 54px) auto 0; padding: 0 20px;
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px;
}
.feature {
  background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); padding: 30px 26px;
  box-shadow: var(--shadow-sm); transition: transform .25s ease, box-shadow .25s ease;
}
.feature:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }
.feature-icon {
  display: inline-grid; place-items: center; width: 54px; height: 54px; border-radius: 14px;
  background: linear-gradient(135deg, var(--blue-100), #d6ecfb); color: var(--blue-900); margin-bottom: 16px;
}
.feature-icon svg { width: 30px; height: 30px; }
.feature h3 { margin: 0 0 .4em; color: var(--ink); font-size: 1.14rem; }
.feature p { color: var(--ink-soft); font-size: .96rem; margin: 0; text-align: justify; hyphens: auto; }

.home-cta {
  max-width: var(--maxw); margin: clamp(40px, 6vw, 80px) auto; padding: clamp(36px, 5vw, 60px) 24px;
  text-align: center; background: linear-gradient(120deg, var(--navy), var(--blue-900)); color: #fff;
  border-radius: 24px; position: relative; overflow: hidden;
}
.home-cta::before { content: ""; position: absolute; inset: 0; background: radial-gradient(60% 120% at 80% 0%, rgba(37, 208, 224, .25), transparent 60%); }
.home-cta h2 { color: #fff; position: relative; }
.home-cta p { color: #c6dcf0; position: relative; margin-bottom: 24px; }
.home-cta .btn-primary { position: relative; background: #fff; color: var(--blue-900); }
.home-cta .btn-primary:hover { background: var(--cyan); color: var(--navy); }

/* reveal-on-scroll */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .6s ease, transform .6s ease; }
.reveal.in { opacity: 1; transform: none; }

/* ---------- Buttons ---------- */
button { font-family: inherit; cursor: pointer; }
.btn-primary {
  background: var(--blue-700); color: #fff; border: 0; padding: 12px 22px; border-radius: var(--radius-sm);
  font-size: 1rem; font-weight: 600; text-decoration: none; display: inline-flex; align-items: center; gap: 8px;
  transition: background .15s, transform .06s, box-shadow .2s; box-shadow: 0 6px 18px rgba(23, 107, 181, .28);
}
.btn-primary:hover { background: var(--blue-900); box-shadow: 0 10px 26px rgba(23, 107, 181, .36); }
.btn-primary:active { transform: translateY(1px); }
.btn-primary:disabled { background: #a9c6e4; cursor: not-allowed; box-shadow: none; }
.btn-lg { padding: 15px 28px; font-size: 1.06rem; }
.btn-arrow { width: 19px; height: 19px; transition: transform .2s; }
.btn-primary:hover .btn-arrow { transform: translateX(4px); }

.btn-ghost { background: var(--white); color: var(--blue-700); border: 1.5px solid var(--blue-700); padding: 9px 16px; border-radius: var(--radius-sm); font-weight: 600; font-size: .95rem; transition: background .15s; }
.btn-ghost:hover { background: var(--blue-050); }
.btn-ghost:disabled { color: #9fb3c7; border-color: #cdd9e5; cursor: not-allowed; background: var(--white); }
.btn-danger-ghost { color: var(--danger); border-color: var(--danger); }
.btn-danger-ghost:hover { background: var(--danger-soft); }
.btn-danger-ghost:disabled { color: #d8a8a2; border-color: #e6c6c2; }
.btn-soft { background: var(--blue-100); color: var(--blue-900); border: 0; padding: 11px 16px; border-radius: var(--radius-sm); font-weight: 600; font-size: .95rem; transition: background .15s; }
.btn-soft:hover { background: #d6ecfb; }
.btn-block { display: block; width: 100%; margin-top: 10px; }

/* ---------- Step nav ---------- */
.stepnav { max-width: var(--maxw); margin: 30px auto 8px; padding: 0 18px; }
.stepnav-inner { display: flex; align-items: center; justify-content: center; gap: 6px; flex-wrap: wrap; background: var(--white); border: 1px solid var(--line); border-radius: 999px; padding: 8px; box-shadow: var(--shadow-sm); width: fit-content; margin: 0 auto; }
.btn-step { background: transparent; color: var(--ink-soft); border: 0; padding: 9px 16px; border-radius: 999px; font-weight: 600; font-size: .95rem; display: inline-flex; align-items: center; gap: 8px; white-space: nowrap; transition: background .15s, color .15s; }
.btn-step .step-num { background: var(--line); color: var(--ink-soft); width: 22px; height: 22px; border-radius: 50%; display: grid; place-items: center; font-size: .8rem; transition: background .15s; }
.btn-step:hover:not(:disabled) { color: var(--blue-700); }
.btn-step.active { background: var(--blue-700); color: #fff; }
.btn-step.active .step-num { background: rgba(255, 255, 255, .25); color: #fff; }
.btn-step:disabled { color: #b7c4d1; cursor: not-allowed; }
.step-sep { width: 14px; height: 1px; background: var(--line); }

.steps-container { max-width: var(--maxw); margin: 0 auto; padding: 18px; }
.step-content { display: none; }
.step-content.active { display: block; animation: stepFade .35s ease; }
@keyframes stepFade { from { opacity: 0; } to { opacity: 1; } }

/* ---------- Step 0 ---------- */
.step0-card { max-width: 620px; margin: 0 auto; }
.step0-intro { margin-bottom: 22px; }
.new-project { display: flex; flex-direction: column; gap: 20px; margin-top: 4px; }
.new-project .field { display: flex; flex-direction: column; gap: 6px; }
.field-hint { font-size: .82rem; color: var(--ink-soft); margin: 2px 0 0; line-height: 1.4; }
.btn-text-danger { align-self: flex-start; background: transparent; border: 0; color: var(--danger); font-size: .82rem; font-weight: 600; padding: 4px 0; margin-top: 2px; cursor: pointer; }
.btn-text-danger:hover:not(:disabled) { text-decoration: underline; }
.btn-text-danger:disabled { color: #c4ccd4; cursor: not-allowed; }
.confirm-box { display: flex; gap: 11px; align-items: flex-start; font-size: .92rem; color: var(--ink-soft); cursor: pointer; background: var(--blue-050); border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 13px 15px; transition: border .15s; }
.confirm-box:hover { border-color: #c7dcf0; }
.confirm-box input { margin-top: 2px; flex: none; width: 16px; height: 16px; }
.divider { display: flex; align-items: center; text-align: center; color: var(--ink-soft); margin: 28px 0; font-size: .8rem; text-transform: uppercase; letter-spacing: .08em; }
.divider::before, .divider::after { content: ""; flex: 1; height: 1px; background: var(--line); }
.divider span { padding: 0 16px; }
.import-tile { display: flex; align-items: center; gap: 14px; width: 100%; text-align: left; background: var(--white); border: 1px dashed var(--blue-500); border-radius: var(--radius-sm); padding: 16px 18px; cursor: pointer; transition: background .15s, border-color .15s; }
.import-tile:hover { background: var(--blue-050); border-color: var(--blue-700); }
.import-tile svg { width: 26px; height: 26px; color: var(--blue-700); flex: none; }
.import-tile-text { display: flex; flex-direction: column; gap: 2px; }
.import-tile-text strong { color: var(--ink); font-size: .96rem; }
.import-tile-text small { color: var(--ink-soft); font-size: .84rem; }
.info-msg { display: flex; gap: 11px; align-items: flex-start; background: var(--warn-bg); color: var(--warn-ink); border: 1px solid #f0dca0; border-radius: var(--radius-sm); padding: 13px 15px; font-size: .88rem; line-height: 1.45; margin: 0 0 24px; }
.info-msg svg { width: 20px; height: 20px; flex: none; margin-top: 1px; }

/* ---------- Inputs ---------- */
input[type=text], input[type=email], input[type=number], textarea, select {
  width: 100%; padding: 11px 13px; border: 1px solid var(--line); border-radius: var(--radius-sm); font-size: .95rem;
  font-family: inherit; color: var(--ink); background: var(--white); transition: border .15s, box-shadow .15s;
}
input:focus, textarea:focus, select:focus { outline: none; border-color: var(--blue-500); box-shadow: 0 0 0 3px rgba(43, 138, 239, .15); }
label { font-weight: 500; }

/* ---------- Step 1 ---------- */
.test-list { max-height: 320px; overflow-y: auto; border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 8px 12px; margin: 14px 0; background: var(--blue-050); }
.test-list:empty { padding: 18px 12px; }
.test-list:empty::after { content: "Tapez ci-dessus pour rechercher un test…"; color: var(--ink-soft); font-size: .9rem; }
.test { padding: 5px 0; font-weight: 600; }
.test label, .subtests label { display: inline-flex; align-items: center; gap: 8px; cursor: pointer; font-weight: inherit; }
.subtests { margin-left: 24px; }
.subtests div { padding: 2px 0; font-weight: 400; }
#manualTestWrapper { display: flex; gap: 10px; flex-wrap: wrap; }
#manualTestWrapper input { flex: 1; min-width: 200px; }
.selected-list { border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 10px 14px; min-height: 60px; }
.empty-hint { margin: 8px 0; }
.selected-test { display: flex; justify-content: space-between; align-items: center; padding: 7px 4px; border-bottom: 1px solid var(--line); font-weight: 600; }
.selected-test:last-child { border-bottom: 0; }
.selected-subtest { padding-left: 22px; font-weight: 400; color: var(--ink-soft); }
.remove-test-btn { background: transparent; color: var(--danger); border: 0; font-size: 1.2rem; line-height: 1; padding: 0 6px; border-radius: 6px; }
.remove-test-btn:hover { background: var(--danger-soft); }
.warning { color: var(--danger); background: var(--danger-soft); border-radius: var(--radius-sm); padding: 10px 12px; margin: 12px 0; font-size: .92rem; }
.success { color: var(--green); background: var(--green-soft); border-radius: var(--radius-sm); padding: 10px 12px; margin: 12px 0; font-size: .92rem; }
#nextStepBtn { margin-top: 16px; }

/* ---------- Step 2 ---------- */
.test-card { margin-bottom: 18px; }
.test-card > h3 { margin-top: 0; }
.subtest-card { background: var(--blue-050); border-radius: var(--radius-sm); padding: 12px 14px; margin: 10px 0; }
.subtest-title { font-size: 1rem; margin: 0 0 8px; color: var(--ink); font-family: "Inter", sans-serif; font-weight: 600; }
.conditions-container { display: flex; flex-direction: column; gap: 10px; }
.condition-row {
  display: grid;
  grid-template-columns: minmax(150px, 1.6fr) 96px 150px minmax(170px, 1.4fr) 38px;
  gap: 10px; align-items: stretch;
  background: var(--white); border: 1px solid var(--line); border-radius: var(--radius-sm);
  padding: 12px; transition: border .15s, box-shadow .15s;
}
.condition-row:hover { border-color: #d2e2f2; box-shadow: var(--shadow-sm); }
.condition-row .field { display: flex; flex-direction: column; gap: 4px; min-width: 0; justify-content: flex-end; }
.field-label { font-size: .72rem; font-weight: 600; text-transform: uppercase; letter-spacing: .04em; color: var(--ink-soft); padding-left: 2px; }
.condition-name, .condition-value, .condition-type, .multi-select-display { width: 100%; height: 42px; box-sizing: border-box; }
.condition-value { text-align: center; font-weight: 600; }
.condition-value.invalid { border-color: var(--amber); background: var(--amber-soft); }
.multi-select-container { position: relative; min-width: 0; }
.multi-select-display { display: flex; align-items: center; padding: 0 12px; border: 1px solid var(--line); border-radius: var(--radius-sm); cursor: pointer; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; background: var(--white); font-size: .9rem; color: var(--ink-soft); }
.multi-select-display.has-value { color: var(--ink); }
.multi-select-options { position: absolute; top: calc(100% + 4px); left: 0; right: 0; background: var(--white); border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 8px; display: none; max-height: 230px; overflow: auto; z-index: 50; box-shadow: var(--shadow-md); }
.ms-opt { display: flex; align-items: center; gap: 8px; padding: 4px 2px; font-size: .9rem; cursor: pointer; font-weight: 400; }
.ms-add-row { display: flex; gap: 6px; margin-top: 8px; padding-top: 8px; border-top: 1px solid var(--line); }
.ms-add-input { flex: 1; padding: 7px 9px; font-size: .85rem; height: auto; }
.ms-add-btn { flex: none; width: 34px; background: var(--blue-700); color: #fff; border: 0; border-radius: var(--radius-sm); font-size: 1.1rem; font-weight: 600; }
.ms-add-btn:hover { background: var(--blue-900); }
.add-condition-btn { background: var(--blue-050); color: var(--blue-700); border: 1px dashed var(--blue-500); margin-top: 8px; font-weight: 600; padding: 9px 14px; border-radius: var(--radius-sm); }
.add-condition-btn:hover { background: var(--blue-100); }
.remove-condition-btn { background: var(--danger-soft); color: var(--danger); border: 0; width: 38px; height: 42px; border-radius: var(--radius-sm); font-size: 1.1rem; align-self: end; }
.remove-condition-btn:hover { background: #f8d7d3; }
.cond-warn { grid-column: 1 / -1; font-size: .82rem; color: var(--amber); display: flex; align-items: center; gap: 6px; margin: 2px 0 0 2px; }
.cond-warn svg { width: 14px; height: 14px; flex: none; }
.step-actions { display: flex; justify-content: space-between; gap: 12px; }

/* ---------- Step 3 : full-width chart + slide-out options drawer ---------- */
.viz-shell { position: relative; }
.viz-main { margin-bottom: 0; position: relative; }
.viz-plot { width: 100%; height: 640px; }

.panel-fab {
  position: absolute; top: 18px; right: 18px; z-index: 5;
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--white); color: var(--blue-700); border: 1px solid var(--line);
  padding: 9px 15px; border-radius: 999px; font-weight: 600; font-size: .9rem;
  box-shadow: var(--shadow-sm); transition: background .15s, box-shadow .15s;
}
.panel-fab:hover { background: var(--blue-050); box-shadow: var(--shadow-md); }
.panel-fab svg { width: 18px; height: 18px; }

.panel-scrim { position: fixed; inset: 0; background: rgba(10, 37, 64, .28); z-index: 1400; opacity: 0; transition: opacity .25s; }
.panel-scrim.show { opacity: 1; }

.viz-panel {
  position: fixed; top: 0; right: 0; height: 100vh; width: 340px; max-width: 88vw;
  background: var(--white); border-left: 1px solid var(--line); box-shadow: var(--shadow-lg);
  z-index: 1500; transform: translateX(100%); transition: transform .3s cubic-bezier(.4, 0, .2, 1);
  display: flex; flex-direction: column;
}
.viz-panel.open { transform: translateX(0); }
.viz-panel-head { display: flex; align-items: center; justify-content: space-between; padding: 18px 20px; border-bottom: 1px solid var(--line); flex: none; }
.viz-panel-head h3 { margin: 0; }
.panel-close { background: transparent; border: 0; font-size: 1.6rem; line-height: 1; color: var(--ink-soft); padding: 0 4px; border-radius: 6px; }
.panel-close:hover { background: var(--blue-050); color: var(--ink); }
.viz-panel-body { padding: 8px 20px 90px; overflow-y: auto; flex: 1; -webkit-overflow-scrolling: touch; }

.panel-label { display: block; font-size: .8rem; font-weight: 600; color: var(--ink-soft); margin: 16px 0 5px; text-transform: uppercase; letter-spacing: .05em; }
.panel-hint { font-size: .82rem; color: var(--ink-soft); margin: 0 0 8px; }
.panel-toggle { position: relative; display: block; padding: 9px 0 9px 30px; font-size: .92rem; font-weight: 400; cursor: pointer; line-height: 1.4; color: var(--ink); }
.panel-toggle input { position: absolute; left: 0; top: 10px; width: 18px; height: 18px; margin: 0; accent-color: var(--blue-700); cursor: pointer; }
.panel-toggle span { display: block; }
.panel-toggle.is-locked { opacity: .6; cursor: not-allowed; }
.seg { display: flex; border: 1px solid var(--line); border-radius: var(--radius-sm); overflow: hidden; }
.seg button { flex: 1; background: var(--white); border: 0; padding: 9px; font-weight: 600; color: var(--ink-soft); font-size: .9rem; transition: background .15s; }
.seg button.active { background: var(--blue-700); color: #fff; }
.fn-list { display: flex; flex-direction: column; gap: 4px; max-height: 240px; overflow: auto; }
.fn-row { display: flex; align-items: center; gap: 8px; padding: 6px 8px; border: 1px solid var(--line); border-radius: 8px; background: var(--white); font-size: .88rem; cursor: grab; transition: border-color .12s, box-shadow .12s, opacity .12s; }
.fn-row:hover { border-color: #c7dcf0; }
.fn-row.dragging { opacity: .5; cursor: grabbing; box-shadow: var(--shadow-md); }
.fn-drag { color: var(--ink-soft); font-size: 1rem; line-height: 1; cursor: grab; flex: none; user-select: none; }
.fn-row input[type=checkbox] { flex: none; width: 16px; height: 16px; margin: 0; accent-color: var(--blue-700); }
.fn-row-label { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.axis-limits { margin-top: 14px; }
.axis-limits-row { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.axis-limits-row .field { display: flex; flex-direction: column; gap: 4px; }
.fn-hint { font-size: .78rem; color: var(--ink-soft); margin: 0 0 6px; display: flex; align-items: center; gap: 5px; }
.fn-subhint { font-size: .74rem; color: var(--ink-soft); margin: -2px 0 8px; font-style: italic; }
.points-list { max-height: 280px; }
.point-row { gap: 7px; }
.point-rename { flex: 1; min-width: 0; font-size: .82rem; padding: 4px 7px; border: 1px solid var(--line); border-radius: 6px; background: var(--white); color: var(--ink); }
.point-rename:disabled { opacity: .5; }
.point-fn { font-size: .68rem; color: var(--ink-soft); white-space: nowrap; flex: none; max-width: 90px; overflow: hidden; text-overflow: ellipsis; }
.point-row.is-hidden { opacity: .55; }
.color-list { display: flex; flex-direction: column; gap: 6px; max-height: 220px; overflow: auto; }
.color-row { display: flex; align-items: center; gap: 9px; font-size: .85rem; }
.color-row input[type=color] { width: 32px; height: 28px; padding: 0; border: 1px solid var(--line); border-radius: 6px; background: var(--white); cursor: pointer; flex: none; }
.color-row span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.viz-panel-body hr { border: 0; border-top: 1px solid var(--line); margin: 18px 0; }
[data-only] { display: block; }

.compare-block { background: var(--blue-050); border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 12px 14px; margin-top: 14px; }
.compare-block .panel-label { margin-top: 0; }
.compare-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.compare-grid .field { display: flex; flex-direction: column; gap: 4px; min-width: 0; }
.compare-grid .condition-value, .compare-grid .condition-type { width: 100%; height: 42px; box-sizing: border-box; }
.compare-label-input { margin-top: 4px; }
.btn-sm { padding: 7px 12px; font-size: .85rem; margin-top: 8px; }

/* ---------- Suggest ---------- */
#suggestForm { display: flex; flex-direction: column; gap: 6px; }
#suggestForm label { margin-top: 12px; }
.fn-checks { display: flex; flex-wrap: wrap; gap: 8px; margin: 6px 0; }
.fn-checks label { display: inline-flex; align-items: center; gap: 6px; background: var(--blue-050); border: 1px solid var(--line); border-radius: 999px; padding: 6px 13px; font-size: .88rem; font-weight: 500; cursor: pointer; transition: all .12s; }
.fn-checks label:has(input:checked) { background: var(--blue-700); color: #fff; border-color: var(--blue-700); }
.fn-checks input { display: none; }
.form-actions { display: flex; justify-content: center; margin-top: 18px; }

/* ---------- Donate ---------- */
.donate-card { text-align: center; }
.donate-options { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; margin: 22px 0; }
.donate-options label { display: inline-flex; align-items: center; gap: 8px; background: var(--white); border: 2px solid var(--line); border-radius: 999px; padding: 9px 18px; cursor: pointer; font-weight: 500; transition: all .12s; }
.donate-options label:has(input:checked) { background: var(--blue-700); color: #fff; border-color: var(--blue-700); }
.donate-custom { gap: 6px !important; }
.donate-input { width: 70px; padding: 4px 8px; }
.donate-options label:has(input:checked) .donate-input { color: var(--ink); }
.paypal-container { max-width: 340px; margin: 18px auto 0; min-height: 10px; }

/* ---------- About ---------- */
.about-hero { text-align: center; padding: 26px 0 30px; }
.about-kicker { display: inline-block; text-transform: uppercase; letter-spacing: .14em; font-size: .76rem; font-weight: 600; color: var(--cyan-deep); margin-bottom: 12px; }
[data-theme="dark"] .about-kicker { color: var(--cyan); }
.about-hero h2 { font-size: clamp(1.95rem, 4.2vw, 2.8rem); max-width: 680px; margin: 0 auto; line-height: 1.12; letter-spacing: -.5px; }
.about-hero h2 em { font-style: normal; color: var(--cyan-deep); }
[data-theme="dark"] .about-hero h2 em { color: var(--cyan); }
.about-lede { max-width: 600px; margin: 18px auto 0; font-size: 1.08rem; color: var(--ink-soft); line-height: 1.6; }

.about-grid { display: flex; flex-direction: column; gap: 20px; }

.about-card { position: relative; padding: 26px 28px; }
.about-card-head { display: flex; align-items: center; gap: 14px; margin-bottom: 14px; }
.about-icon { width: 46px; height: 46px; border-radius: 13px; display: grid; place-items: center; flex: none;
  background: linear-gradient(135deg, var(--blue-700), var(--blue-900)); color: #fff;
  box-shadow: 0 6px 16px rgba(23, 107, 181, .28); }
.about-icon svg { width: 23px; height: 23px; }
.about-icon--green { background: linear-gradient(135deg, #2bb673, #149e63); box-shadow: 0 6px 16px rgba(20, 158, 99, .28); }
.about-card-head h3 { margin: 0; font-size: 1.22rem; letter-spacing: -.2px; }
.about-card p { color: var(--ink-soft); text-align: justify; hyphens: auto; margin: 0 0 12px; }
.about-card p:last-child { margin-bottom: 0; }

/* the privacy card gets a subtle green frame to signal safety, same layout */
.about-card--accent { border-color: #cfeede; background: linear-gradient(180deg, rgba(243, 251, 246, .7), var(--white)); }
[data-theme="dark"] .about-card--accent { border-color: #1f5e3d; background: linear-gradient(180deg, rgba(21, 48, 31, .55), var(--white)); }

.brand { font-family: "Fraunces", Georgia, serif; font-weight: 600; color: var(--blue-700); }
[data-theme="dark"] .brand { color: var(--cyan); }

.signature { margin-top: 26px; padding-top: 18px; border-top: 1px solid var(--line); text-align: right; font-weight: 500; color: var(--ink); font-style: italic; }

/* ---------- Footer ---------- */
footer { flex: none; margin-top: 24px; padding: 26px clamp(16px, 4vw, 44px); border-top: 1px solid var(--line); background: var(--white); display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; font-size: .85rem; color: var(--ink-soft); }
.footer-brand { display: flex; align-items: center; gap: 9px; font-family: "Fraunces", serif; font-weight: 600; font-size: 1.05rem; color: var(--blue-900); }
.footer-mark { width: 26px; height: 26px; color: var(--blue-700); }

/* ---------- Leave-guard modal ---------- */
.modal-overlay { position: fixed; inset: 0; background: rgba(10, 37, 64, .4); z-index: 3000; display: flex; align-items: center; justify-content: center; padding: 20px; }
.modal-overlay[hidden] { display: none; }
.modal-card { background: var(--white); border-radius: var(--radius); padding: 28px; max-width: 460px; width: 100%; box-shadow: var(--shadow-lg); }
.modal-card h3 { margin: 0 0 .5em; color: var(--ink); }
.modal-card p { color: var(--ink-soft); font-size: .94rem; }
.modal-actions { display: flex; flex-direction: column; gap: 10px; margin-top: 20px; }
.modal-actions button { width: 100%; }

/* ---------- Toast ---------- */
.toast { position: fixed; bottom: 26px; left: 50%; transform: translateX(-50%) translateY(20px); background: #1c2733; color: #fff; padding: 13px 22px; border-radius: 12px; font-size: .92rem; box-shadow: var(--shadow-md); opacity: 0; pointer-events: none; transition: all .25s; z-index: 2000; max-width: 90vw; }
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ---------- Responsive ---------- */
@media (max-width: 940px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-visual { order: -1; max-width: 460px; }
  .home-features { grid-template-columns: 1fr; max-width: 560px; }
  .scroll-cue { display: none; }
}
@media (max-width: 880px) {
  .viz-plot { height: 460px; }
}
@media (max-width: 680px) {
  nav { display: none; position: absolute; top: 74px; left: 0; right: 0; flex-direction: column; background: var(--navy); padding: 10px; gap: 2px; box-shadow: var(--shadow-md); }
  nav.open { display: flex; }
  nav a { padding: 12px 14px; }
  nav a::after { display: none; }
  .nav-toggle { display: flex; }
  .condition-row { grid-template-columns: 1fr 1fr; }
  .condition-row .field:first-child { grid-column: 1 / -1; }
  .remove-condition-btn { grid-column: 1 / -1; width: 100%; height: 38px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .reveal { opacity: 1; transform: none; }
  .profile-line { stroke-dashoffset: 0; }
  .profile-nodes circle { opacity: 1; }
}