/* ═══════════════════════════════════════════════════════════════════════════
   ResKick Design v2 — Modern AI Studio aesthetic
   Inspired by Google AI Studio / clean SaaS design language
   Override layer on top of style.css
   ═══════════════════════════════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Be+Vietnam+Pro:ital,wght@0,300;0,400;0,500;0,600;0,700;0,800;0,900;1,700;1,800;1,900&family=Inter:wght@300;400;500;600;700;800;900&family=Sora:wght@400;600;700;800&display=swap');

/* ── ENHANCED VARIABLES ───────────────────────────────────────────────────── */
:root {
  /* Be Vietnam Pro phải đứng đầu — hỗ trợ đầy đủ tiếng Việt */
  --fd:'Be Vietnam Pro','Sora','Segoe UI',system-ui,-apple-system,sans-serif;
  --fs:'Be Vietnam Pro','Inter','Segoe UI',system-ui,-apple-system,sans-serif;
  --r:18px;
  --rs:12px;
  --ease:cubic-bezier(.4,0,.2,1);
  --spring:cubic-bezier(.34,1.56,.64,1);
  --bounce:cubic-bezier(.68,-0.55,.265,1.55);
}

[data-theme="dark"] {
  /* Richer dark background */
  --bg:#07071a;
  --surface:#0d0d2b;
  --surface2:#111130;
  --text:#f0eeff;
  --text1:#c8c4e8;
  --t2:#8b87b8;
  --t3:#4a4670;
  /* Indigo-violet accent (AI brand) */
  --accent:#6366f1;
  --accent2:#818cf8;
  --accent3:#a5b4fc;
  --accent-glow:rgba(99,102,241,.18);
  --accent-glow2:rgba(99,102,241,.08);
  /* Keep warm secondary for CTAs */
  --orange:#f97316;
  --orange-glow:rgba(249,115,22,.15);
  /* Supporting palette */
  --green:#34d399;
  --coral:#fb7185;
  --violet:#a78bfa;
  --blue:#60a5fa;
  --pink:#f472b6;
  /* Glass system */
  --glass:rgba(255,255,255,.04);
  --glass2:rgba(255,255,255,.08);
  --glass3:rgba(255,255,255,.14);
  --glass4:rgba(255,255,255,.02);
  --border:rgba(255,255,255,.07);
  --border2:rgba(255,255,255,.14);
  --border-accent:rgba(99,102,241,.25);
  /* Shadows */
  --shadow:0 20px 60px rgba(0,0,0,.6);
  --shadow-sm:0 4px 20px rgba(0,0,0,.3);
  --shadow-accent:0 8px 32px rgba(99,102,241,.25);
  --shadow-card:0 2px 12px rgba(0,0,0,.2),0 20px 48px rgba(0,0,0,.3);
  /* Nav */
  --nav-bg:rgba(7,7,26,.72);
  /* Cards */
  --card-bg:rgba(255,255,255,.03);
  --safe-bg:rgba(99,102,241,.06);
  --safe-border:rgba(99,102,241,.2);
  --ev-bg:rgba(52,211,153,.05);
  --ev-border:rgba(52,211,153,.18);
}

[data-theme="light"] {
  --bg:#f8f7ff;
  --surface:#ffffff;
  --surface2:#f0eefc;
  --text:#1a1840;
  --text1:#2d2b5a;
  --t2:#5b5890;
  --t3:#9896c8;
  --accent:#4f46e5;
  --accent2:#6366f1;
  --accent3:#818cf8;
  --accent-glow:rgba(79,70,229,.1);
  --accent-glow2:rgba(79,70,229,.05);
  --orange:#ea580c;
  --orange-glow:rgba(234,88,12,.1);
  --green:#059669;
  --coral:#dc2626;
  --violet:#7c3aed;
  --blue:#2563eb;
  --pink:#db2777;
  --glass:rgba(255,255,255,.7);
  --glass2:rgba(255,255,255,.9);
  --glass3:rgba(255,255,255,.98);
  --glass4:rgba(255,255,255,.4);
  --border:rgba(79,70,229,.08);
  --border2:rgba(79,70,229,.14);
  --border-accent:rgba(79,70,229,.2);
  --shadow:0 20px 60px rgba(79,70,229,.08);
  --shadow-sm:0 4px 20px rgba(79,70,229,.06);
  --shadow-accent:0 8px 32px rgba(79,70,229,.15);
  --shadow-card:0 2px 8px rgba(79,70,229,.06),0 16px 40px rgba(79,70,229,.06);
  --nav-bg:rgba(248,247,255,.82);
  --card-bg:rgba(255,255,255,.8);
  --safe-bg:rgba(79,70,229,.04);
  --safe-border:rgba(79,70,229,.15);
  --ev-bg:rgba(5,150,105,.04);
  --ev-border:rgba(5,150,105,.14);
}

/* ── BASE FONT UPGRADE ────────────────────────────────────────────────────── */
body {
  font-family: var(--fs);
  background: var(--bg);
  color: var(--text);
}

/* ── BODY BACKGROUND — richer gradient mesh ─────────────────────────────── */
[data-theme="dark"] body::before {
  background:
    radial-gradient(ellipse 70% 50% at 10% 5%, rgba(99,102,241,.12), transparent 50%),
    radial-gradient(ellipse 50% 40% at 90% 15%, rgba(167,139,250,.08), transparent 45%),
    radial-gradient(ellipse 60% 40% at 50% 95%, rgba(52,211,153,.06), transparent 50%);
}
[data-theme="light"] body::before {
  background:
    radial-gradient(ellipse 60% 40% at 8% 5%, rgba(99,102,241,.06), transparent 50%),
    radial-gradient(ellipse 40% 30% at 92% 12%, rgba(167,139,250,.06), transparent 45%);
}

/* ── ANIMATED GRADIENT ORBS (replaces simple bg-mesh) ───────────────────── */
[data-theme="dark"] .bg-mesh {
  background:
    radial-gradient(ellipse 55% 45% at 18% 18%, rgba(99,102,241,.07), transparent 55%),
    radial-gradient(ellipse 45% 55% at 82% 28%, rgba(167,139,250,.05), transparent 50%),
    radial-gradient(ellipse 65% 38% at 48% 88%, rgba(52,211,153,.03), transparent 52%);
}
[data-theme="light"] .bg-mesh {
  background:
    radial-gradient(ellipse 55% 45% at 18% 18%, rgba(99,102,241,.04), transparent 55%),
    radial-gradient(ellipse 45% 55% at 82% 28%, rgba(167,139,250,.03), transparent 50%);
}

/* ── ENHANCED KEYFRAMES ──────────────────────────────────────────────────── */
@keyframes slideUp {
  from { opacity:0; transform:translateY(32px) scale(.98); }
  to   { opacity:1; transform:translateY(0) scale(1); }
}
@keyframes glowPulse {
  0%,100% { box-shadow: 0 0 0 0 var(--accent-glow); }
  50%      { box-shadow: 0 0 0 12px transparent; }
}
@keyframes borderFlow {
  0%   { border-color: var(--border); }
  50%  { border-color: var(--border-accent); }
  100% { border-color: var(--border); }
}
@keyframes cardIn {
  from { opacity:0; transform:translateY(20px); }
  to   { opacity:1; transform:translateY(0); }
}
@keyframes shimmerV2 {
  0%   { background-position: -400% 0; }
  100% { background-position:  400% 0; }
}
@keyframes gradientShift {
  0%   { background-position: 0%   50%; }
  50%  { background-position: 100% 50%; }
  100% { background-position: 0%   50%; }
}
@keyframes float {
  0%,100% { transform: translateY(0px); }
  50%      { transform: translateY(-8px); }
}
@keyframes dotBounce {
  0%,100% { transform:translateY(0); opacity:1; }
  50%      { transform:translateY(-6px); opacity:.4; }
}

/* ── TOPBAR — enhanced ────────────────────────────────────────────────────── */
.topbar {
  top: 14px;
  padding: 10px 14px 10px 18px;
  border-radius: 32px;
  background: var(--nav-bg);
  backdrop-filter: blur(40px) saturate(1.6);
  -webkit-backdrop-filter: blur(40px) saturate(1.6);
  border: 1px solid var(--border2);
  box-shadow: 0 4px 24px rgba(0,0,0,.15), inset 0 1px 0 rgba(255,255,255,.06);
  transition: all .4s var(--ease);
}
.topbar.scrolled {
  box-shadow: 0 8px 40px rgba(0,0,0,.2), inset 0 1px 0 rgba(255,255,255,.04);
  border-color: var(--border-accent);
}

/* Logo */
.logo-link {
  display: flex;
  align-items: center;
  font-size: 1.05rem;
  font-weight: 800;
  letter-spacing: -.02em;
  color: var(--text);
  gap: .1rem;
  text-decoration: none;
}
.logo-r {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--accent), var(--violet));
  color: #fff;
  font-size: .85rem;
  font-weight: 800;
  margin-right: 2px;
  box-shadow: 0 2px 12px var(--accent-glow);
}
.logo-eskick { color: var(--text1); }

/* Nav links */
.nav-links {
  display: flex;
  gap: 2px;
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: 99px;
  padding: 3px;
}
.tb-link {
  color: var(--t3);
  font-size: .72rem;
  font-weight: 500;
  padding: 5px 14px;
  border-radius: 99px;
  transition: all .2s var(--ease);
  white-space: nowrap;
  letter-spacing: .01em;
}
.tb-link:hover {
  color: var(--text);
  background: var(--glass2);
}
.tb-link.active {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 2px 10px var(--accent-glow);
}

/* Lang pills */
.lang-wrap {
  display: flex;
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: 99px;
  padding: 2px;
}
.lang-b {
  padding: 3px 10px;
  border-radius: 99px;
  color: var(--t3);
  font-size: .62rem;
  font-weight: 700;
  transition: .2s;
  letter-spacing: .04em;
}
.lang-b.active {
  background: linear-gradient(135deg, var(--accent), var(--violet));
  color: #fff;
  box-shadow: 0 1px 6px var(--accent-glow);
}

/* Icon buttons */
.icon-btn {
  width: 32px;
  height: 32px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--glass);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .85rem;
  cursor: pointer;
  transition: all .3s var(--spring);
  color: var(--t2);
}
.icon-btn:hover {
  border-color: var(--accent);
  background: var(--accent-glow2);
  transform: scale(1.08);
}

@media(max-width:700px) {
  .nav-links { display: none; }
  .topbar { width: 96vw; top: 8px; }
}

/* ── LANDING — hero upgrade ──────────────────────────────────────────────── */
.landing {
  min-height: 100vh;
  padding: 7.5rem 1.5rem 4rem;
  animation: slideUp .9s var(--ease) both;
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  gap: 1.75rem;
  align-items: start;
  justify-items: center;
  text-align: center;
  position: relative;
}

/* Animated gradient badge above headline */
.landing-badge {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  padding: .4rem 1rem .4rem .5rem;
  border-radius: 99px;
  border: 1px solid var(--border-accent);
  background: var(--accent-glow2);
  font-size: .72rem;
  font-weight: 600;
  color: var(--accent3);
  letter-spacing: .04em;
  text-transform: uppercase;
  margin-bottom: .25rem;
}
.landing-badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  animation: glowPulse 2s infinite;
}

/* H1 */
.landing h1 {
  font-family: var(--fd);
  font-size: clamp(2.2rem, 5vw + .5rem, 4rem);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -.03em;
  max-width: 820px;
  margin: 0 auto .75rem;
}
.landing h1 em {
  font-style: normal;
  background: linear-gradient(135deg, var(--accent), var(--violet), var(--blue));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  background-size: 300% auto;
  animation: gradientShift 5s ease infinite;
}

.landing-slogan {
  font-size: clamp(.85rem, 1.1vw + .3rem, 1rem);
  font-weight: 600;
  color: var(--accent2);
  letter-spacing: .06em;
  text-transform: uppercase;
  margin-bottom: 1rem;
}

.landing-sub {
  font-size: clamp(.92rem, .9vw + .38rem, 1.05rem);
  color: var(--t2);
  max-width: 640px;
  margin: 0 auto 2rem;
  line-height: 1.85;
  font-weight: 400;
}

/* ── INPUT WRAP — glass card upgrade ──────────────────────────────────────── */
.input-wrap {
  max-width: 700px;
  width: 100%;
  margin: 0 auto;
  padding: 1.75rem 1.75rem 1.5rem;
  background: var(--card-bg);
  border: 1px solid var(--border2);
  border-radius: 28px;
  box-shadow: var(--shadow-card);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  display: grid;
  gap: 1rem;
  animation: cardIn .7s .15s var(--ease) both;
  transition: border-color .3s, box-shadow .3s;
}
.input-wrap:focus-within {
  border-color: var(--border-accent);
  box-shadow: var(--shadow-card), 0 0 0 1px var(--border-accent);
}

.input-tabs {
  display: flex;
  gap: 3px;
  background: var(--glass4);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 3px;
}
.input-tab {
  flex: 1;
  padding: 8px;
  border-radius: 9px;
  font-size: .72rem;
  font-weight: 600;
  color: var(--t3);
  text-align: center;
  transition: .25s var(--ease);
  letter-spacing: .02em;
}
.input-tab.active {
  background: var(--glass2);
  color: var(--text);
  box-shadow: var(--shadow-sm);
}

.input-area {
  width: 100%;
  min-height: 120px;
  padding: 1rem 1.1rem;
  background: var(--glass4);
  border: 1.5px solid var(--border);
  border-radius: 14px;
  color: var(--text);
  font-family: var(--fs);
  font-size: .95rem;
  resize: vertical;
  transition: border-color .25s, box-shadow .25s, background .25s;
  line-height: 1.7;
}
.input-area:focus {
  outline: none;
  border-color: var(--accent);
  background: var(--glass);
  box-shadow: 0 0 0 3px var(--accent-glow2);
}
.input-area::placeholder { color: var(--t3); }

/* ── BARRIER CHIPS — upgraded ────────────────────────────────────────────── */
.barrier-chip {
  padding: 6px 14px;
  border-radius: 99px;
  font-size: .72rem;
  font-weight: 600;
  border: 1px solid var(--border2);
  background: var(--glass4);
  color: var(--t2);
  cursor: pointer;
  transition: all .2s var(--ease);
  letter-spacing: .02em;
}
.barrier-chip:hover {
  border-color: var(--border-accent);
  color: var(--accent2);
  background: var(--accent-glow2);
  transform: translateY(-1px);
}
.barrier-chip.selected {
  background: linear-gradient(135deg, var(--accent), var(--violet));
  border-color: transparent;
  color: #fff;
  box-shadow: 0 2px 12px var(--accent-glow);
  transform: translateY(-1px);
}

/* ── PRIMARY / SECONDARY BUTTONS — v2 ───────────────────────────────────── */
.btn-primary2 {
  flex: 1;
  padding: 13px 20px;
  border-radius: 12px;
  font-weight: 700;
  font-size: .88rem;
  color: #fff;
  background: linear-gradient(135deg, var(--accent) 0%, var(--violet) 100%);
  background-size: 200% auto;
  transition: all .3s var(--ease);
  box-shadow: 0 4px 16px var(--accent-glow), inset 0 1px 0 rgba(255,255,255,.15);
  border: none;
  letter-spacing: .01em;
  position: relative;
  overflow: hidden;
}
.btn-primary2::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,.12), transparent);
  opacity: 0;
  transition: opacity .3s;
  border-radius: inherit;
}
.btn-primary2:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px var(--accent-glow), 0 2px 4px rgba(0,0,0,.2);
  background-position: right center;
}
.btn-primary2:hover::after { opacity: 1; }
.btn-primary2:active {
  transform: translateY(0);
  box-shadow: 0 2px 8px var(--accent-glow);
}

/* CTA variant (orange for the main start action) */
.btn-primary2.cta-orange {
  background: linear-gradient(135deg, #f97316 0%, #c2410c 100%);
  box-shadow: 0 4px 16px rgba(249,115,22,.3), inset 0 1px 0 rgba(255,255,255,.15);
}
.btn-primary2.cta-orange:hover {
  box-shadow: 0 8px 28px rgba(249,115,22,.4), 0 2px 4px rgba(0,0,0,.2);
}

.btn-secondary2 {
  flex: 1;
  padding: 13px 20px;
  border-radius: 12px;
  font-weight: 600;
  font-size: .88rem;
  color: var(--text1);
  background: var(--glass);
  border: 1px solid var(--border2);
  transition: all .25s var(--ease);
  letter-spacing: .01em;
}
.btn-secondary2:hover {
  background: var(--glass2);
  border-color: var(--border-accent);
  color: var(--accent2);
  transform: translateY(-1px);
}

/* ── FLOW CARDS — v2 ─────────────────────────────────────────────────────── */
.flow-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 22px;
  padding: clamp(1.5rem, 2.5vw, 2rem);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  animation: cardIn .5s var(--ease) both;
  transition: transform .35s var(--ease), border-color .35s, box-shadow .35s;
  box-shadow: var(--shadow-card);
}
.flow-card:hover {
  transform: translateY(-3px);
  border-color: var(--border2);
  box-shadow: 0 4px 20px rgba(0,0,0,.2), 0 24px 60px rgba(0,0,0,.25);
}

/* Safe start card — indigo glow */
.flow-card.safe-card {
  border-color: var(--safe-border);
  background: var(--safe-bg);
  box-shadow: var(--shadow-card), 0 0 40px var(--accent-glow2);
}
/* Evidence card */
.flow-card.evidence-card {
  border-color: var(--ev-border);
  background: var(--ev-bg);
}

/* Safe action text */
.safe-action {
  font-size: clamp(1.1rem, 1.4vw + .4rem, 1.38rem);
  font-weight: 700;
  color: var(--text);
  line-height: 1.5;
  margin-bottom: 1rem;
  letter-spacing: -.01em;
}

/* Flow label */
.flow-label {
  font-size: .65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--accent2);
  margin-bottom: .75rem;
}

/* ── LOADING DOTS — v2 ────────────────────────────────────────────────────── */
.loading-dots {
  display: flex;
  gap: 5px;
  justify-content: center;
  margin-bottom: .75rem;
}
.loading-dots span {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  animation: dotBounce .9s ease infinite;
}
.loading-dots span:nth-child(2) { animation-delay: .15s; background: var(--violet); }
.loading-dots span:nth-child(3) { animation-delay: .3s;  background: var(--blue); }

/* ── SKELETON — v2 ────────────────────────────────────────────────────────── */
.skeleton {
  border-radius: 22px;
  background: linear-gradient(90deg,
    var(--glass) 0%,
    var(--glass2) 30%,
    var(--glass3) 50%,
    var(--glass2) 70%,
    var(--glass) 100%);
  background-size: 400% 100%;
  animation: shimmerV2 2s ease infinite;
}

/* ── PROGRESS DOTS — v2 ──────────────────────────────────────────────────── */
.flow-progress {
  display: flex;
  gap: 6px;
  justify-content: center;
  margin-bottom: 1.75rem;
}
.flow-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--border2);
  transition: all .35s var(--spring);
}
.flow-dot.active {
  width: 24px;
  border-radius: 99px;
  background: linear-gradient(90deg, var(--accent), var(--violet));
  box-shadow: 0 0 10px var(--accent-glow);
}
.flow-dot.done {
  background: var(--green);
  box-shadow: 0 0 6px rgba(52,211,153,.3);
}

/* ── STATS / WIN SECTION ──────────────────────────────────────────────────── */
.wins {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 1.25rem 1.5rem;
  box-shadow: var(--shadow-card);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}
.win-num {
  font-size: clamp(1.5rem, 2vw, 2rem);
  font-weight: 800;
  background: linear-gradient(135deg, var(--accent), var(--violet));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ── MOOD SLIDER ──────────────────────────────────────────────────────────── */
.mood-slider {
  -webkit-appearance: none;
  height: 6px;
  border-radius: 99px;
  background: linear-gradient(90deg, var(--coral), var(--orange), var(--accent), var(--green));
  outline: none;
  cursor: pointer;
}
.mood-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: #fff;
  border: 3px solid var(--accent);
  cursor: pointer;
  box-shadow: 0 2px 10px var(--accent-glow);
  transition: transform .2s var(--spring);
}
.mood-slider::-webkit-slider-thumb:hover { transform: scale(1.15); }
.mood-slider::-moz-range-thumb {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: #fff;
  border: 3px solid var(--accent);
  cursor: pointer;
}

/* ── VOICE BUTTON ─────────────────────────────────────────────────────────── */
.voice-btn {
  padding: 9px 20px;
  border-radius: 10px;
  border: 1px solid var(--border2);
  background: var(--glass4);
  color: var(--t2);
  font-size: .82rem;
  font-family: var(--fs);
  transition: all .25s var(--ease);
  display: flex;
  align-items: center;
  gap: .4rem;
}
.voice-btn:hover {
  border-color: var(--border-accent);
  color: var(--accent2);
  background: var(--accent-glow2);
  transform: translateY(-1px);
}

/* ── PAGE WRAP ────────────────────────────────────────────────────────────── */
.page-wrap {
  max-width: 900px;
  margin: 0 auto;
  padding: 6rem 1.5rem 3rem;
  animation: slideUp .7s var(--ease) both;
}
.page-title {
  font-size: clamp(1.6rem, 2.5vw + .5rem, 2.2rem);
  font-weight: 800;
  letter-spacing: -.02em;
  margin-bottom: .4rem;
}
.page-sub {
  font-size: clamp(.82rem, .5vw + .35rem, .92rem);
  color: var(--t2);
  margin-bottom: 2rem;
  line-height: 1.7;
}

/* ── INSIGHT / HISTORY CARDS ─────────────────────────────────────────────── */
.insight-card, .history-item {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 16px;
  transition: border-color .25s, transform .25s var(--ease);
}
.insight-card:hover, .history-item:hover {
  border-color: var(--border2);
  transform: translateY(-2px);
}

/* ── TEACHER / GUIDE PANELS ──────────────────────────────────────────────── */
.teacher-section, .guide-section {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 1.5rem;
  margin-bottom: 1rem;
  backdrop-filter: blur(12px);
}

/* ── FOOTER ───────────────────────────────────────────────────────────────── */
.app-footer {
  text-align: center;
  padding: 2rem 1rem;
  font-size: .75rem;
  color: var(--t3);
  border-top: 1px solid var(--border);
  margin-top: 3rem;
}
.app-footer a { color: var(--accent2); }
.app-footer a:hover { color: var(--accent3); }

/* ── GOOGLE SIGN-IN BUTTON ────────────────────────────────────────────────── */
.btn-google {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: .7rem;
  padding: 11px 20px;
  border-radius: 12px;
  border: 1px solid var(--border2);
  background: var(--glass2);
  color: var(--text);
  font-size: .88rem;
  font-weight: 600;
  font-family: var(--fs);
  cursor: pointer;
  transition: all .25s var(--ease);
  letter-spacing: .01em;
}
.btn-google:hover {
  border-color: rgba(66,133,244,.4);
  background: rgba(66,133,244,.06);
  box-shadow: 0 4px 16px rgba(66,133,244,.12);
  transform: translateY(-1px);
}
.btn-google svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}
.btn-google-divider {
  display: flex;
  align-items: center;
  gap: .75rem;
  margin: .75rem 0;
  color: var(--t3);
  font-size: .72rem;
}
.btn-google-divider::before, .btn-google-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}

/* ── AUTH MODAL / FORM ────────────────────────────────────────────────────── */
.auth-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.6);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 300;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  opacity: 0;
  visibility: hidden;
  transition: opacity .3s, visibility .3s;
}
.auth-modal-overlay.show {
  opacity: 1;
  visibility: visible;
}
.auth-modal {
  background: var(--card-bg);
  border: 1px solid var(--border2);
  border-radius: 24px;
  padding: 2.25rem;
  max-width: 400px;
  width: 100%;
  box-shadow: var(--shadow);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  transform: scale(.96) translateY(12px);
  transition: transform .35s var(--spring);
  position: relative;
}
.auth-modal-overlay.show .auth-modal {
  transform: scale(1) translateY(0);
}
.auth-modal-title {
  font-size: 1.35rem;
  font-weight: 800;
  margin-bottom: .3rem;
  letter-spacing: -.02em;
}
.auth-modal-sub {
  font-size: .82rem;
  color: var(--t2);
  margin-bottom: 1.5rem;
  line-height: 1.6;
}
.auth-field {
  display: flex;
  flex-direction: column;
  gap: .4rem;
  margin-bottom: 1rem;
}
.auth-label {
  font-size: .72rem;
  font-weight: 600;
  color: var(--t2);
  text-transform: uppercase;
  letter-spacing: .06em;
}
.auth-input {
  padding: .75rem 1rem;
  border-radius: 10px;
  border: 1.5px solid var(--border2);
  background: var(--glass);
  color: var(--text);
  font-family: var(--fs);
  font-size: .9rem;
  transition: border-color .2s, box-shadow .2s;
  width: 100%;
}
.auth-input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow2);
}
.auth-error {
  font-size: .75rem;
  color: var(--coral);
  margin-top: -.6rem;
  margin-bottom: .5rem;
}
.auth-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  width: 30px;
  height: 30px;
  border-radius: 8px;
  background: var(--glass2);
  border: 1px solid var(--border);
  color: var(--t3);
  font-size: .8rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: .2s;
}
.auth-close:hover { background: var(--glass3); color: var(--text); }
.auth-switch {
  text-align: center;
  font-size: .78rem;
  color: var(--t3);
  margin-top: .75rem;
}
.auth-switch a { color: var(--accent2); font-weight: 600; cursor: pointer; }
.auth-switch a:hover { color: var(--accent3); }

/* ── TERMS ACCEPTANCE ─────────────────────────────────────────────────────── */
.terms-check-row {
  display: flex;
  align-items: flex-start;
  gap: .65rem;
  padding: .85rem 1rem;
  background: var(--glass4);
  border: 1px solid var(--border);
  border-radius: 10px;
  margin-bottom: 1rem;
}
.terms-check {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  margin-top: 2px;
  accent-color: var(--accent);
  cursor: pointer;
}
.terms-label {
  font-size: .78rem;
  color: var(--t2);
  line-height: 1.55;
  cursor: pointer;
}
.terms-label a { color: var(--accent2); font-weight: 600; }
.terms-label a:hover { color: var(--accent3); }

/* ── TERMS MODAL (full consent wall) ─────────────────────────────────────── */
.terms-wall-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  z-index: 500;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding: 1rem;
  opacity: 0;
  visibility: hidden;
  transition: opacity .4s, visibility .4s;
}
.terms-wall-overlay.show {
  opacity: 1;
  visibility: visible;
}
.terms-wall {
  background: var(--card-bg);
  border: 1px solid var(--border2);
  border-radius: 24px 24px 20px 20px;
  padding: 2rem;
  max-width: 520px;
  width: 100%;
  box-shadow: 0 -20px 80px rgba(0,0,0,.4);
  backdrop-filter: blur(24px);
  transform: translateY(40px);
  transition: transform .45s var(--spring);
}
.terms-wall-overlay.show .terms-wall {
  transform: translateY(0);
}
.terms-wall-icon { font-size: 2rem; margin-bottom: .75rem; }
.terms-wall-title {
  font-size: 1.2rem;
  font-weight: 800;
  margin-bottom: .4rem;
  letter-spacing: -.01em;
}
.terms-wall-body {
  font-size: .82rem;
  color: var(--t2);
  line-height: 1.65;
  margin-bottom: 1.25rem;
}
.terms-wall-body a { color: var(--accent2); font-weight: 600; }
.terms-scroll-hint {
  display: flex;
  gap: .6rem;
  flex-direction: column;
  margin-bottom: 1.25rem;
}
.terms-point {
  display: flex;
  align-items: flex-start;
  gap: .6rem;
  font-size: .78rem;
  color: var(--t2);
  line-height: 1.5;
}
.terms-point-icon {
  font-size: .9rem;
  flex-shrink: 0;
  margin-top: .05rem;
}
.terms-wall-btns { display: flex; gap: .65rem; }
.btn-accept {
  flex: 2;
  padding: 12px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--accent), var(--violet));
  color: #fff;
  font-weight: 700;
  font-size: .88rem;
  font-family: var(--fs);
  border: none;
  cursor: pointer;
  transition: all .25s var(--ease);
  box-shadow: 0 4px 16px var(--accent-glow);
}
.btn-accept:hover { transform: translateY(-1px); box-shadow: 0 6px 24px var(--accent-glow); }
.btn-decline {
  flex: 1;
  padding: 12px;
  border-radius: 10px;
  background: transparent;
  color: var(--t3);
  font-weight: 500;
  font-size: .82rem;
  font-family: var(--fs);
  border: 1px solid var(--border);
  cursor: pointer;
  transition: .2s;
}
.btn-decline:hover { background: var(--glass2); color: var(--text); }

/* ── NOTION CONNECT BADGE ─────────────────────────────────────────────────── */
.notion-connect-badge {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .45rem .9rem;
  border-radius: 99px;
  border: 1px solid var(--border2);
  background: var(--glass);
  font-size: .72rem;
  font-weight: 600;
  color: var(--t2);
  cursor: pointer;
  transition: all .2s var(--ease);
}
.notion-connect-badge:hover {
  border-color: var(--border-accent);
  color: var(--text);
  background: var(--glass2);
}
.notion-connect-badge.connected {
  border-color: rgba(52,211,153,.3);
  color: var(--green);
  background: rgba(52,211,153,.06);
}
.notion-icon {
  font-size: .85rem;
  filter: grayscale(1);
  transition: filter .2s;
}
.notion-connect-badge:hover .notion-icon,
.notion-connect-badge.connected .notion-icon { filter: none; }

/* ── KB HINT ──────────────────────────────────────────────────────────────── */
.kb-hint {
  text-align: center;
  font-size: .65rem;
  color: var(--t3);
  margin-top: .5rem;
  letter-spacing: .06em;
}

/* ── SAFE START COMPARE ───────────────────────────────────────────────────── */
.safe-compare {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  padding: .3rem .75rem;
  background: rgba(52,211,153,.08);
  border: 1px solid rgba(52,211,153,.18);
  border-radius: 99px;
  font-size: .68rem;
  font-weight: 600;
  color: var(--green);
  margin-bottom: .75rem;
}

/* ── RETURN POINTER ───────────────────────────────────────────────────────── */
.return-card {
  background: var(--card-bg);
  border: 1px solid var(--border-accent);
  border-radius: 16px;
  padding: 1.1rem 1.25rem;
  margin-top: 1.25rem;
}
.return-label {
  font-size: .62rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--accent2);
  margin-bottom: .4rem;
}
.return-action {
  font-size: .88rem;
  font-weight: 600;
  color: var(--text);
  line-height: 1.5;
  margin-bottom: .75rem;
}

/* ── DONE CARD ────────────────────────────────────────────────────────────── */
.done-title {
  font-size: clamp(1.4rem, 2vw + .5rem, 1.9rem);
  font-weight: 800;
  letter-spacing: -.02em;
}
.done-icon { font-size: 2.5rem; margin-bottom: .75rem; }
.done-sub { font-size: .92rem; color: var(--t2); margin-bottom: 1.25rem; }

/* Replay */
.replay { padding: 1rem; background: var(--glass4); border-radius: 14px; margin-bottom: 1rem; }
.replay-title { font-size: .65rem; font-weight: 700; text-transform: uppercase; letter-spacing: .1em; color: var(--t3); margin-bottom: .75rem; }
.replay-steps { display: flex; align-items: center; gap: .4rem; flex-wrap: wrap; }
.replay-step { padding: .3rem .75rem; border-radius: 99px; font-size: .7rem; font-weight: 600; background: var(--glass2); color: var(--t3); }
.replay-step.done { background: linear-gradient(135deg, var(--accent), var(--violet)); color: #fff; }
.replay-arrow { color: var(--t3); font-size: .7rem; }
.replay-detail { font-size: .78rem; margin-top: .65rem; padding: .5rem .75rem; background: var(--glass); border-radius: 10px; line-height: 1.5; }
.replay-detail-label { font-weight: 600; color: var(--t3); margin-right: .35rem; }
.replay-ev { color: var(--green); }

/* Before/after */
.before-after { display: grid; grid-template-columns: auto 1fr; gap: .35rem .75rem; align-items: start; }
.ba-label { font-size: .62rem; font-weight: 700; text-transform: uppercase; letter-spacing: .08em; color: var(--t3); padding-top: .2rem; }
.ba-before { font-size: .82rem; color: var(--coral); line-height: 1.5; }
.ba-after  { font-size: .82rem; color: var(--green); line-height: 1.5; }

/* ── MOBILE RESPONSIVE ────────────────────────────────────────────────────── */
@media(max-width:640px) {
  .landing { padding: 6rem .9rem 2.5rem; gap: 1.25rem; }
  .input-wrap { padding: 1.25rem; border-radius: 20px; }
  .flow-card { padding: 1.25rem; border-radius: 18px; }
  .btn-primary2, .btn-secondary2 { padding: 12px 16px; font-size: .85rem; }
  .safe-action { font-size: 1.05rem; }
  .landing h1 { letter-spacing: -.02em; }
  .page-wrap { padding: 5.5rem .9rem 2rem; }
}
@media(max-width:380px) {
  .landing h1 { font-size: 1.8rem; }
  .btn-primary2, .btn-secondary2 { padding: 11px 12px; font-size: .8rem; }
}

/* ── AI EXPLAINABILITY PANEL ─────────────────────────────────────────────── */
.xp-panel {
  margin: 1rem 0 .5rem;
  border: 1px solid var(--border2);
  border-radius: 12px;
  overflow: hidden;
  background: var(--glass4);
}
.xp-summary {
  font-size: .78rem;
  font-weight: 600;
  color: var(--t2);
  padding: .65rem 1rem;
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  gap: .4rem;
  user-select: none;
  transition: background .15s;
}
.xp-summary::-webkit-details-marker { display: none; }
.xp-summary::after {
  content: '▸';
  margin-left: auto;
  font-size: .65rem;
  color: var(--t3);
  transition: transform .2s;
}
details[open] > .xp-summary::after { transform: rotate(90deg); }
.xp-summary:hover { background: var(--glass2); }
.xp-body {
  padding: .75rem 1rem 1rem;
  border-top: 1px solid var(--border2);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: .45rem .75rem;
}
.xp-row {
  display: flex;
  flex-direction: column;
  gap: .2rem;
}
.xp-k {
  font-size: .6rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--t3);
}
.xp-v {
  font-size: .8rem;
  color: var(--text);
  line-height: 1.4;
}
.xp-badge {
  display: inline-block;
  padding: .15rem .55rem;
  border-radius: 99px;
  font-size: .72rem;
  font-weight: 700;
}
.xp-bloom {
  background: rgba(99,102,241,.15);
  color: var(--accent);
}

/* ===== GAMIFICATION: XP bar · Level · Badges · Toasts ===== */
.xp-level-row{display:flex;align-items:center;gap:.6rem;padding:.65rem .85rem;background:rgba(99,102,241,.08);border:1px solid rgba(99,102,241,.2);border-radius:12px;margin-bottom:.75rem}
.xp-level-badge{font-size:.78rem;font-weight:800;color:var(--accent);white-space:nowrap;display:flex;align-items:center;gap:.3rem}
.xp-level-name{font-weight:600;color:var(--t2);font-size:.72rem}
.xp-bar-wrap{flex:1;height:7px;background:var(--border2);border-radius:99px;overflow:hidden}
.xp-bar-fill{height:100%;background:linear-gradient(90deg,var(--accent),var(--violet));border-radius:99px;transition:width .8s cubic-bezier(.4,0,.2,1);width:0%}
.xp-num{font-size:.7rem;color:var(--t3);white-space:nowrap;font-weight:600}

/* Badge grid */
.badge-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(76px,1fr));gap:.5rem;margin-top:.4rem}
.badge-item{display:flex;flex-direction:column;align-items:center;gap:.2rem;padding:.5rem .3rem;border-radius:10px;background:var(--glass2);border:1px solid var(--border2);cursor:default;transition:.2s;text-align:center}
.badge-item:hover{border-color:var(--accent);transform:translateY(-2px)}
.badge-locked{opacity:.35;filter:grayscale(1)}
.badge-icon{font-size:1.4rem;line-height:1}
.badge-name{font-size:.6rem;color:var(--t2);font-weight:600;line-height:1.3}

/* Toast notifications */
.rk-toast{
  max-width:320px;padding:.75rem 1rem;border-radius:14px;
  background:var(--surface2);border:1px solid var(--border2);
  box-shadow:0 8px 32px rgba(0,0,0,.4);
  font-size:.83rem;color:var(--text);line-height:1.4;
  pointer-events:auto;
  opacity:0;transform:translateX(20px);
  transition:opacity .35s,transform .35s cubic-bezier(.34,1.2,.64,1);
}
.rk-toast.show{opacity:1;transform:translateX(0)}
.rk-toast-success{border-color:rgba(52,211,153,.4);background:rgba(52,211,153,.08)}
.rk-toast-badge{border-color:rgba(251,191,36,.4);background:rgba(251,191,36,.06)}
.rk-toast-error{border-color:rgba(239,68,68,.4);background:rgba(239,68,68,.06)}

/* Offline banner */
#offlineBanner{
  position:fixed;top:0;left:0;right:0;z-index:9998;
  background:rgba(251,113,133,.95);color:#fff;
  text-align:center;font-size:.8rem;font-weight:700;
  padding:.5rem;display:none;backdrop-filter:blur(4px)
}