/* ============================================================
   SoulSync — Global Stylesheet
   Dark glassmorphism, purple/pink gradient theme
   ============================================================ */

:root {
  --clr-bg:        #0a0a1a;
  --clr-bg2:       #0e0e24;
  --clr-purple:    #6c3de0;
  --clr-pink:      #e040bb;
  --clr-cyan:      #00d4ff;
  --clr-white:     #ffffff;
  --clr-muted:     #8b8ba7;
  --clr-glass-bg:  rgba(108, 61, 224, 0.08);
  --clr-glass-bdr: rgba(108, 61, 224, 0.25);
  --grad-main:     linear-gradient(135deg, #6c3de0, #e040bb);
  --grad-dark:     linear-gradient(135deg, #0a0a1a 0%, #1a0a2e 50%, #0a1a2e 100%);
  --radius:        16px;
  --radius-lg:     24px;
  --shadow:        0 8px 32px rgba(108, 61, 224, 0.2);
  --trans:         0.3s ease;
}

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

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

body {
  font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
  background: var(--clr-bg);
  color: var(--clr-white);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

/* ── Background ── */
.bg-glow {
  position: fixed; inset: 0; z-index: -1;
  background: var(--grad-dark);
}
.bg-glow::before {
  content: '';
  position: absolute;
  top: -20%; left: -20%;
  width: 60%; height: 60%;
  background: radial-gradient(circle, rgba(108,61,224,0.15) 0%, transparent 70%);
  animation: glow-drift 8s ease-in-out infinite alternate;
}
.bg-glow::after {
  content: '';
  position: absolute;
  bottom: -20%; right: -20%;
  width: 60%; height: 60%;
  background: radial-gradient(circle, rgba(224,64,187,0.12) 0%, transparent 70%);
  animation: glow-drift 10s ease-in-out infinite alternate-reverse;
}

/* ── Glass card ── */
.glass {
  background: var(--clr-glass-bg);
  border: 1px solid var(--clr-glass-bdr);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}

/* ── Buttons ── */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 32px;
  border: none; border-radius: 50px;
  font-size: 15px; font-weight: 600;
  cursor: pointer; transition: var(--trans);
  text-decoration: none; white-space: nowrap;
}
.btn-primary {
  background: var(--grad-main);
  color: #fff;
  box-shadow: 0 4px 20px rgba(108,61,224,0.4);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(108,61,224,0.5);
}
.btn-outline {
  background: transparent;
  color: #fff;
  border: 1px solid var(--clr-glass-bdr);
}
.btn-outline:hover { background: var(--clr-glass-bg); }
.btn-google {
  background: #fff; color: #1a1a2e;
  font-weight: 700; font-size: 15px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.3);
}
.btn-google:hover { transform: translateY(-2px); box-shadow: 0 8px 30px rgba(0,0,0,0.4); }
.btn-google img { width: 20px; }
.btn-large { padding: 18px 48px; font-size: 17px; }

/* ── Progress bar ── */
.progress-wrap { background: rgba(255,255,255,0.08); border-radius: 50px; height: 6px; overflow: hidden; }
.progress-fill { height: 100%; background: var(--grad-main); border-radius: 50px; transition: width 0.4s ease; }

/* ── Typography ── */
h1 { font-size: clamp(2rem, 5vw, 3.5rem); font-weight: 800; line-height: 1.1; }
h2 { font-size: clamp(1.5rem, 3vw, 2.5rem); font-weight: 700; }
h3 { font-size: clamp(1.2rem, 2.5vw, 1.8rem); font-weight: 600; }
.gradient-text {
  background: var(--grad-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.text-muted { color: var(--clr-muted); }

/* ── Navbar ── */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 32px;
  background: rgba(10,10,26,0.8);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255,255,255,0.05);
}
.navbar-brand { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.navbar-brand span { font-size: 20px; font-weight: 800; }
.navbar-brand .heart { font-size: 24px; }
.navbar-actions { display: flex; align-items: center; gap: 12px; }
.user-avatar {
  width: 36px; height: 36px; border-radius: 50%;
  border: 2px solid var(--clr-purple);
  object-fit: cover;
}
.user-name { font-size: 14px; color: var(--clr-muted); }

/* ── Container ── */
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.page-wrap { padding-top: 80px; min-height: 100vh; }
.center { text-align: center; }

/* ── Quiz layout ── */
.quiz-wrap { max-width: 720px; margin: 0 auto; padding: 32px 24px; }
.quiz-header { margin-bottom: 32px; }
.quiz-counter { font-size: 13px; color: var(--clr-muted); margin-bottom: 8px; }
.question-number {
  display: inline-block;
  background: var(--grad-main);
  color: #fff; font-size: 12px; font-weight: 700;
  padding: 4px 12px; border-radius: 20px;
  margin-bottom: 16px;
}
.question-category {
  font-size: 12px; color: var(--clr-cyan);
  text-transform: uppercase; letter-spacing: 1px;
  margin-bottom: 8px;
}
.question-text {
  font-size: clamp(16px, 2.5vw, 20px);
  font-weight: 600; line-height: 1.5;
  margin-bottom: 32px;
}
.options-grid { display: flex; flex-direction: column; gap: 12px; margin-bottom: 32px; }
.option-btn {
  display: flex; align-items: flex-start; gap: 16px;
  padding: 18px 20px;
  background: var(--clr-glass-bg);
  border: 1.5px solid var(--clr-glass-bdr);
  border-radius: var(--radius);
  cursor: pointer; transition: var(--trans);
  text-align: left; color: #fff; font-size: 15px;
  width: 100%;
}
.option-btn:hover {
  border-color: var(--clr-purple);
  background: rgba(108,61,224,0.15);
  transform: translateX(4px);
}
.option-btn.selected {
  border-color: var(--clr-pink);
  background: rgba(224,64,187,0.15);
}
.option-letter {
  flex-shrink: 0; width: 28px; height: 28px;
  border: 1.5px solid var(--clr-glass-bdr);
  border-radius: 8px; display: flex; align-items: center; justify-content: center;
  font-size: 12px; font-weight: 700; color: var(--clr-muted);
}
.option-btn.selected .option-letter { background: var(--grad-main); border-color: transparent; color: #fff; }

/* ── Dashboard cards ── */
.dash-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 20px; margin-top: 32px; }
.dash-card {
  padding: 28px 24px; cursor: pointer; transition: var(--trans);
  position: relative; overflow: hidden;
}
.dash-card::before {
  content: ''; position: absolute; inset: 0;
  background: var(--grad-main); opacity: 0; transition: opacity var(--trans);
  border-radius: inherit;
}
.dash-card:hover::before { opacity: 0.06; }
.dash-card:hover { transform: translateY(-4px); box-shadow: 0 16px 48px rgba(108,61,224,0.25); }
.dash-card.disabled { opacity: 0.4; cursor: not-allowed; pointer-events: none; }
.dash-card-icon { font-size: 40px; margin-bottom: 16px; }
.dash-card h3 { font-size: 17px; margin-bottom: 8px; }
.dash-card p { font-size: 14px; color: var(--clr-muted); }
.dash-card .badge {
  display: inline-block; padding: 3px 10px;
  background: rgba(108,61,224,0.2); border: 1px solid rgba(108,61,224,0.4);
  border-radius: 20px; font-size: 11px; color: var(--clr-purple);
  margin-top: 12px;
}

/* ── Results / Compatibility ── */
.compat-score-ring {
  width: 200px; height: 200px; margin: 0 auto 32px;
  position: relative; display: flex; align-items: center; justify-content: center;
}
.compat-score-ring svg { position: absolute; inset: 0; transform: rotate(-90deg); }
.compat-score-text { text-align: center; z-index: 1; }
.compat-score-text .pct { font-size: 52px; font-weight: 800; line-height: 1; }
.compat-score-text .label { font-size: 13px; color: var(--clr-muted); }
.personality-badge {
  text-align: center; padding: 16px 24px;
  border-radius: var(--radius); margin-bottom: 32px;
}
.category-bars { display: flex; flex-direction: column; gap: 16px; }
.cat-bar-row { display: flex; flex-direction: column; gap: 6px; }
.cat-bar-label { display: flex; justify-content: space-between; font-size: 14px; }
.cat-bar-label span:last-child { color: var(--clr-muted); font-size: 13px; }
.cat-bar-track { background: rgba(255,255,255,0.08); border-radius: 50px; height: 8px; }
.cat-bar-fill { height: 100%; background: var(--grad-main); border-radius: 50px; transition: width 1s ease; }

/* ── Invite page ── */
.invite-card { max-width: 540px; margin: 48px auto; padding: 40px; text-align: center; }
.share-url {
  display: flex; gap: 8px; margin: 24px 0;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--clr-glass-bdr);
  border-radius: 12px; padding: 12px 16px;
}
.share-url input {
  flex: 1; background: transparent; border: none; color: #fff;
  font-size: 13px; outline: none; word-break: break-all;
}
.copy-btn {
  padding: 6px 14px; background: var(--grad-main);
  border: none; border-radius: 8px;
  color: #fff; font-size: 13px; font-weight: 600;
  cursor: pointer; white-space: nowrap;
}
.whatsapp-btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 14px 28px; background: #25d366;
  border-radius: 50px; color: #fff;
  font-weight: 700; text-decoration: none; font-size: 15px;
}

/* ── Modal ── */
.modal-overlay {
  position: fixed; inset: 0; z-index: 200;
  background: rgba(0,0,0,0.7);
  backdrop-filter: blur(8px);
  display: flex; align-items: center; justify-content: center;
  padding: 24px;
  opacity: 0; pointer-events: none; transition: opacity 0.3s;
}
.modal-overlay.active { opacity: 1; pointer-events: all; }
.modal-box { max-width: 440px; width: 100%; padding: 40px; }

/* ── Form inputs ── */
.form-group { margin-bottom: 20px; }
.form-label { display: block; font-size: 14px; color: var(--clr-muted); margin-bottom: 6px; }
.form-input {
  width: 100%; padding: 12px 16px;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--clr-glass-bdr);
  border-radius: 12px; color: #fff;
  font-size: 15px; outline: none; transition: var(--trans);
}
.form-input:focus { border-color: var(--clr-purple); }
.form-check { display: flex; align-items: flex-start; gap: 12px; margin-bottom: 16px; font-size: 14px; color: var(--clr-muted); }
.form-check input[type=checkbox] { flex-shrink: 0; margin-top: 3px; accent-color: var(--clr-purple); }

/* ── Toast ── */
.toast {
  position: fixed; bottom: 24px; right: 24px; z-index: 300;
  padding: 14px 20px; border-radius: 12px;
  background: rgba(30,20,50,0.95); border: 1px solid var(--clr-glass-bdr);
  font-size: 14px; transform: translateY(80px); opacity: 0;
  transition: all 0.3s ease; max-width: 300px;
}
.toast.show { transform: translateY(0); opacity: 1; }
.toast.success { border-color: #22c55e; }
.toast.error   { border-color: #ef4444; }

/* ── Animations ── */
@keyframes glow-drift {
  0%   { transform: translate(0, 0) scale(1); }
  100% { transform: translate(5%, 5%) scale(1.1); }
}
@keyframes fade-in {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes pulse-ring {
  0%, 100% { box-shadow: 0 0 0 0 rgba(108,61,224,0.4); }
  50%       { box-shadow: 0 0 0 16px rgba(108,61,224,0); }
}
.animate-in { animation: fade-in 0.5s ease forwards; }
.pulse { animation: pulse-ring 2s ease-in-out infinite; }

/* ── Stars/particles ── */
.stars {
  position: fixed; inset: 0; z-index: -1; overflow: hidden; pointer-events: none;
}
.star {
  position: absolute; width: 2px; height: 2px;
  background: rgba(255,255,255,0.5); border-radius: 50%;
  animation: twinkle 3s ease-in-out infinite;
}
@keyframes twinkle {
  0%, 100% { opacity: 0.2; } 50% { opacity: 0.8; }
}

/* ── Responsive ── */
@media (max-width: 640px) {
  .navbar { padding: 12px 16px; }
  .container { padding: 0 16px; }
  .quiz-wrap { padding: 24px 16px; }
  .dash-grid { grid-template-columns: 1fr; }
  .btn-large { padding: 15px 32px; font-size: 15px; }
}

/* ── Loading spinner ── */
.spinner {
  width: 40px; height: 40px; margin: 0 auto;
  border: 3px solid rgba(108,61,224,0.2);
  border-top-color: var(--clr-purple);
  border-radius: 50%; animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ── Section titles ── */
.section-tag {
  display: inline-block;
  padding: 6px 16px;
  border: 1px solid rgba(108,61,224,0.4);
  border-radius: 20px;
  font-size: 13px; color: var(--clr-purple);
  margin-bottom: 16px;
}

/* ── Avatar pair ── */
.avatar-pair {
  display: flex; align-items: center; justify-content: center;
  gap: 0; margin-bottom: 24px;
}
.avatar-pair img {
  width: 64px; height: 64px; border-radius: 50%;
  border: 3px solid var(--clr-bg);
  object-fit: cover;
}
.avatar-pair img:last-child { margin-left: -16px; }
.avatar-pair .heart-icon { font-size: 20px; margin: 0 8px; }

/* ── Radar chart wrapper ── */
#radarChart { max-width: 400px; margin: 0 auto; }