/* ═══════════════════════════════════════════════════════════
   Love for Physics — Master Stylesheet v2.0
   Deep Navy + Saffron Orange + Gold
   ═══════════════════════════════════════════════════════════ */

/* Google Fonts loaded via <link> in HTML head — NOT here — to avoid render blocking */

:root {
  --navy:        #0A1628;
  --navy-mid:    #0D1F3C;
  --navy-card:   #152240;
  --navy-border: #1E3258;
  --navy-hover:  #1A2D50;
  --navy-deep:   #060E1C;

  --orange:       #FF6B35;
  --orange-light: #FF8C5A;
  --orange-glow:  rgba(255, 107, 53, 0.12);
  --orange-glow2: rgba(255, 107, 53, 0.06);

  --gold:         #F5C842;
  --gold-light:   #F9D96A;
  --gold-glow:    rgba(245, 200, 66, 0.12);

  --text-primary:   #F0F4FF;
  --text-secondary: #8BA3C7;
  --text-muted:     #4A6080;

  --success: #00D4A0;
  --warning: #F5C842;
  --error:   #FF4D6A;
  --info:    #5BA8FF;

  --font: 'Inter', 'Segoe UI', system-ui, sans-serif;
  --radius:    14px;
  --radius-sm:  9px;
  --radius-lg: 20px;
  --shadow:     0 12px 40px rgba(0,0,0,0.5);
  --shadow-sm:  0 4px 16px rgba(0,0,0,0.35);
  --shadow-glow: 0 0 40px rgba(255,107,53,0.15);
  --transition: 0.2s ease;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  background: var(--navy);
  color: var(--text-primary);
  font-family: var(--font);
  line-height: 1.6;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: var(--navy-mid); }
::-webkit-scrollbar-thumb { background: var(--navy-border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--orange); }

/* ── Typography ── */
h1, h2, h3, h4, h5, h6 { color: var(--text-primary); font-weight: 700; line-height: 1.2; letter-spacing: -0.02em; }
p { color: var(--text-secondary); }
a { color: var(--orange); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--orange-light); }

/* ══════════════════════════════════════════
   NAVBAR
══════════════════════════════════════════ */
.navbar {
  background: rgba(10, 22, 40, 0.92);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-bottom: 1px solid rgba(30, 50, 88, 0.8);
  padding: 0 28px;
  height: 66px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
}

.navbar-brand { display: flex; align-items: center; gap: 11px; text-decoration: none; }

.navbar-brand .brand-icon {
  width: 38px; height: 38px;
  background: linear-gradient(135deg, var(--orange) 0%, #FF9A5C 100%);
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-size: 20px;
  box-shadow: 0 4px 12px rgba(255,107,53,0.35);
}

.navbar-brand .brand-text {
  font-size: 19px; font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -0.03em;
}
.navbar-brand .brand-text span { color: var(--orange); }

.navbar-nav {
  display: flex; align-items: center;
  gap: 2px; list-style: none;
}

.navbar-nav a {
  color: var(--text-secondary);
  padding: 8px 15px;
  border-radius: var(--radius-sm);
  font-size: 14px; font-weight: 500;
  transition: all var(--transition);
  white-space: nowrap;
}
.navbar-nav a:hover, .navbar-nav a.active { color: var(--text-primary); background: var(--navy-hover); }
.navbar-nav a.active { color: var(--orange); }

.btn-nav-cta {
  background: linear-gradient(135deg, var(--orange), var(--orange-light)) !important;
  color: #fff !important;
  padding: 8px 20px !important;
  border-radius: var(--radius-sm) !important;
  font-weight: 700 !important;
  box-shadow: 0 4px 14px rgba(255,107,53,0.3) !important;
}
.btn-nav-cta:hover { transform: translateY(-1px); box-shadow: 0 6px 18px rgba(255,107,53,0.4) !important; }

.navbar-toggle {
  display: none; background: none; border: none;
  color: var(--text-primary); font-size: 22px;
  cursor: pointer; padding: 4px;
}

/* ── Page Layout ── */
.page-wrapper { padding-top: 66px; min-height: 100vh; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section { padding: 88px 0; }
.section-sm { padding: 40px 0; }

/* ══════════════════════════════════════════
   BUTTONS
══════════════════════════════════════════ */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 13px 26px;
  border-radius: var(--radius-sm);
  font-size: 15px; font-weight: 600;
  border: none; cursor: pointer;
  transition: all var(--transition);
  text-decoration: none; white-space: nowrap;
  font-family: var(--font);
  letter-spacing: -0.01em;
}
.btn:disabled { opacity: 0.45; cursor: not-allowed; }

.btn-primary {
  background: linear-gradient(135deg, var(--orange) 0%, var(--orange-light) 100%);
  color: #fff;
  box-shadow: 0 4px 18px rgba(255,107,53,0.35);
}
.btn-primary:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(255,107,53,0.45);
  color: #fff;
}

.btn-secondary {
  background: var(--navy-card); color: var(--text-primary);
  border: 1px solid var(--navy-border);
}
.btn-secondary:hover:not(:disabled) { background: var(--navy-hover); border-color: var(--orange); color: var(--orange); }

.btn-outline {
  background: transparent; color: var(--orange);
  border: 1.5px solid var(--orange);
}
.btn-outline:hover:not(:disabled) { background: var(--orange-glow); color: var(--orange); }

.btn-ghost {
  background: transparent; color: var(--text-secondary);
  border: 1px solid var(--navy-border);
}
.btn-ghost:hover:not(:disabled) { background: var(--navy-hover); color: var(--text-primary); }

.btn-gold {
  background: linear-gradient(135deg, var(--gold) 0%, var(--gold-light) 100%);
  color: #0A1628;
  font-weight: 700;
  box-shadow: 0 4px 18px rgba(245,200,66,0.3);
}
.btn-gold:hover:not(:disabled) { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(245,200,66,0.4); color: #0A1628; }

.btn-sm  { padding: 8px 16px; font-size: 13px; }
.btn-lg  { padding: 16px 32px; font-size: 17px; }
.btn-xl  { padding: 18px 40px; font-size: 18px; font-weight: 700; }
.btn-full { width: 100%; }
.btn-icon { padding: 10px; border-radius: 50%; }

/* ══════════════════════════════════════════
   CARDS
══════════════════════════════════════════ */
.card {
  background: var(--navy-card);
  border: 1px solid var(--navy-border);
  border-radius: var(--radius);
  padding: 24px;
  transition: all var(--transition);
}
.card:hover { border-color: rgba(255,107,53,0.25); }
.card-glow { box-shadow: 0 0 0 1px rgba(255,107,53,0.2), var(--shadow-sm); }

/* ══════════════════════════════════════════
   FORMS
══════════════════════════════════════════ */
.form-group { margin-bottom: 20px; }
.form-label { display: block; font-size: 14px; font-weight: 600; color: var(--text-secondary); margin-bottom: 8px; }

.form-input, .form-select, .form-textarea {
  width: 100%;
  background: var(--navy-mid);
  border: 1.5px solid var(--navy-border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 15px; padding: 13px 16px;
  transition: all var(--transition);
  font-family: var(--font);
}
.form-input:focus, .form-select:focus, .form-textarea:focus {
  outline: none;
  border-color: var(--orange);
  background: var(--navy-card);
  box-shadow: 0 0 0 3px var(--orange-glow);
}
.form-input::placeholder { color: var(--text-muted); }
.form-select option { background: var(--navy-card); }
.form-textarea { resize: vertical; min-height: 100px; }
.form-error { color: var(--error); font-size: 13px; margin-top: 4px; }
.form-hint { color: var(--text-muted); font-size: 12px; margin-top: 4px; }

/* ══════════════════════════════════════════
   BADGES
══════════════════════════════════════════ */
.badge {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 4px 11px; border-radius: 20px;
  font-size: 12px; font-weight: 600;
}
.badge-orange { background: rgba(255,107,53,0.15); color: var(--orange); border: 1px solid rgba(255,107,53,0.3); }
.badge-gold   { background: rgba(245,200,66,0.12); color: var(--gold); border: 1px solid rgba(245,200,66,0.25); }
.badge-green  { background: rgba(0,212,160,0.1); color: var(--success); border: 1px solid rgba(0,212,160,0.2); }
.badge-yellow { background: rgba(245,200,66,0.1); color: var(--warning); border: 1px solid rgba(245,200,66,0.2); }
.badge-red    { background: rgba(255,77,106,0.1); color: var(--error); border: 1px solid rgba(255,77,106,0.2); }
.badge-blue   { background: rgba(91,168,255,0.1); color: var(--info); border: 1px solid rgba(91,168,255,0.2); }

/* ══════════════════════════════════════════
   ALERTS
══════════════════════════════════════════ */
.alert {
  padding: 14px 18px; border-radius: var(--radius-sm);
  font-size: 14px; display: flex; align-items: flex-start; gap: 10px;
  margin-bottom: 20px;
}
.alert-warning { background: rgba(245,200,66,0.07); border: 1px solid rgba(245,200,66,0.25); color: #f5d070; }
.alert-orange  { background: rgba(255,107,53,0.07); border: 1px solid rgba(255,107,53,0.25); color: #ffaa80; }
.alert-danger  { background: rgba(255,77,106,0.08); border: 1px solid rgba(255,77,106,0.3); color: #ff8099; }
.alert-success { background: rgba(0,212,160,0.07); border: 1px solid rgba(0,212,160,0.2); color: #66e8c9; }
.alert-info    { background: rgba(91,168,255,0.07); border: 1px solid rgba(91,168,255,0.2); color: #90caf9; }

/* ══════════════════════════════════════════
   SPINNER
══════════════════════════════════════════ */
.spinner {
  width: 20px; height: 20px;
  border: 2px solid rgba(255,107,53,0.2);
  border-top-color: var(--orange);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  display: inline-block;
}
.spinner-lg { width: 40px; height: 40px; border-width: 3px; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ══════════════════════════════════════════
   SUBSCRIPTION BANNER
══════════════════════════════════════════ */
.sub-banner {
  padding: 12px 24px; font-size: 14px; font-weight: 500;
  display: flex; align-items: center; justify-content: space-between;
  gap: 12px; flex-wrap: wrap;
}
.sub-banner-yellow  { background: rgba(245,200,66,0.1); border-bottom: 2px solid rgba(245,200,66,0.4); color: #f5d070; }
.sub-banner-orange  { background: rgba(255,107,53,0.1); border-bottom: 2px solid rgba(255,107,53,0.4); color: #ffaa80; }
.sub-banner-red     { background: rgba(255,77,106,0.1); border-bottom: 2px solid rgba(255,77,106,0.5); color: #ff8099; }
.sub-banner-blocked { background: rgba(255,77,106,0.14); border-bottom: 2px solid rgba(255,77,106,0.6); color: var(--error); }

/* ══════════════════════════════════════════
   AI RESPONSE
══════════════════════════════════════════ */
.ai-response { line-height: 1.8; }
.ai-response h2 { color: var(--orange); font-size: 16px; margin: 20px 0 8px; padding-bottom: 4px; border-bottom: 1px solid rgba(255,107,53,0.2); }
.ai-response h3 { color: var(--text-primary); font-size: 15px; margin: 16px 0 6px; }
.ai-response p { color: var(--text-secondary); margin-bottom: 10px; }
.ai-response ul, .ai-response ol { color: var(--text-secondary); padding-left: 20px; margin-bottom: 10px; }
.ai-response li { margin-bottom: 4px; }
.ai-response strong { color: var(--text-primary); }
.ai-response em { color: var(--gold-light); }
.ai-response code { background: rgba(255,107,53,0.1); color: var(--orange-light); padding: 1px 6px; border-radius: 4px; font-family: 'Cascadia Code','Consolas',monospace; font-size: 13px; }
.ai-response pre { background: var(--navy-deep); border: 1px solid var(--navy-border); border-radius: var(--radius-sm); padding: 14px; overflow-x: auto; margin: 10px 0; }
.ai-response pre code { background: none; color: var(--text-primary); padding: 0; }
.ai-response blockquote { border-left: 3px solid var(--orange); padding-left: 14px; color: var(--text-secondary); margin: 10px 0; }

/* ══════════════════════════════════════════
   CHAT INTERFACE
══════════════════════════════════════════ */
.chat-container { display: flex; flex-direction: column; height: calc(100vh - 66px - 80px); min-height: 500px; }
.chat-messages { flex: 1; overflow-y: auto; padding: 24px; display: flex; flex-direction: column; gap: 16px; }

.chat-bubble {
  max-width: 86%; padding: 14px 18px;
  border-radius: var(--radius); animation: fadeInUp 0.3s ease;
}
.chat-bubble-user {
  background: rgba(255,107,53,0.1); border: 1px solid rgba(255,107,53,0.2);
  align-self: flex-end; border-bottom-right-radius: 4px; color: var(--text-primary);
}
.chat-bubble-ai {
  background: var(--navy-card); border: 1px solid var(--navy-border);
  align-self: flex-start; border-bottom-left-radius: 4px;
}
.chat-input-area {
  padding: 16px 20px; background: var(--navy-mid);
  border-top: 1px solid var(--navy-border);
  display: flex; gap: 12px; align-items: flex-end;
}
.chat-input {
  flex: 1; background: var(--navy-card); border: 1.5px solid var(--navy-border);
  border-radius: var(--radius-sm); color: var(--text-primary);
  font-size: 15px; padding: 12px 16px; resize: none; font-family: var(--font); max-height: 120px;
}
.chat-input:focus { outline: none; border-color: var(--orange); }

/* ══════════════════════════════════════════
   TOPIC CARDS
══════════════════════════════════════════ */
.topic-card {
  background: var(--navy-card); border: 1px solid var(--navy-border);
  border-radius: var(--radius); padding: 18px; cursor: pointer;
  transition: all var(--transition);
}
.topic-card:hover {
  border-color: var(--orange); background: var(--navy-hover);
  transform: translateY(-2px); box-shadow: 0 6px 20px rgba(255,107,53,0.1);
}

/* ══════════════════════════════════════════
   HERO SECTION
══════════════════════════════════════════ */
.hero {
  min-height: 100vh;
  background:
    radial-gradient(ellipse 80% 60% at 50% -10%, rgba(255,107,53,0.1) 0%, transparent 60%),
    radial-gradient(ellipse 60% 40% at 80% 80%, rgba(245,200,66,0.04) 0%, transparent 50%),
    linear-gradient(180deg, var(--navy-deep) 0%, var(--navy) 50%, var(--navy-mid) 100%);
  padding: 0 0 80px;
  display: flex; align-items: center;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0; bottom: 0;
  background-image:
    radial-gradient(circle at 20% 30%, rgba(255,107,53,0.06) 0%, transparent 40%),
    radial-gradient(circle at 80% 70%, rgba(245,200,66,0.04) 0%, transparent 40%);
  pointer-events: none;
}

/* Animated grid overlay */
.hero::after {
  content: '';
  position: absolute; top: 0; left: 0; right: 0; bottom: 0;
  background-image:
    linear-gradient(rgba(30,50,88,0.2) 1px, transparent 1px),
    linear-gradient(90deg, rgba(30,50,88,0.2) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 30%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 30%, transparent 80%);
}

.hero-inner { position: relative; z-index: 1; width: 100%; padding-top: 80px; }

.hero-label {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(255,107,53,0.1); border: 1px solid rgba(255,107,53,0.25);
  border-radius: 30px; padding: 7px 18px;
  font-size: 13px; font-weight: 600; color: var(--orange);
  letter-spacing: 0.02em; margin-bottom: 28px;
}

.hero-title {
  font-size: clamp(38px, 6vw, 72px);
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -0.04em;
  margin-bottom: 20px;
  background: linear-gradient(145deg, #FFFFFF 0%, rgba(240,244,255,0.85) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-title .accent {
  background: linear-gradient(135deg, var(--orange) 0%, var(--gold) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-tagline {
  font-size: clamp(15px, 2vw, 19px);
  color: var(--text-secondary);
  margin-bottom: 14px;
  font-style: italic;
  letter-spacing: 0.01em;
}

.hero-sub {
  font-size: 16px; color: var(--text-muted);
  margin-bottom: 44px; max-width: 580px; margin-left: auto; margin-right: auto;
  line-height: 1.65;
}

.hero-cta { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; margin-bottom: 52px; }

.hero-badges {
  display: flex; gap: 12px; justify-content: center; flex-wrap: wrap;
}

.hero-badge {
  background: var(--navy-card);
  border: 1px solid var(--navy-border);
  border-radius: 10px; padding: 10px 20px;
  font-size: 14px; font-weight: 600; color: var(--text-secondary);
  transition: all var(--transition);
}
.hero-badge:hover { border-color: var(--orange); color: var(--text-primary); }

/* ══════════════════════════════════════════
   SECTION HEADERS
══════════════════════════════════════════ */
.section-header { text-align: center; margin-bottom: 60px; }
.section-title { font-size: clamp(28px, 3.5vw, 44px); margin-bottom: 14px; letter-spacing: -0.03em; }
.section-sub { font-size: 16px; color: var(--text-secondary); max-width: 560px; margin: 0 auto; line-height: 1.65; }
.section-label {
  font-size: 12px; color: var(--orange);
  text-transform: uppercase; letter-spacing: 3px; font-weight: 700; margin-bottom: 14px;
  display: block;
}

/* ══════════════════════════════════════════
   PHILOSOPHY SECTION
══════════════════════════════════════════ */
.philosophy-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }

.philosophy-card {
  background: var(--navy-card);
  border: 1px solid var(--navy-border);
  border-radius: var(--radius);
  padding: 36px 28px;
  position: relative; overflow: hidden;
  transition: all var(--transition);
}
.philosophy-card::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, var(--orange), var(--gold));
  opacity: 0; transition: opacity var(--transition);
}
.philosophy-card:hover { border-color: rgba(255,107,53,0.3); transform: translateY(-4px); }
.philosophy-card:hover::before { opacity: 1; }

.philosophy-icon {
  width: 56px; height: 56px;
  background: var(--orange-glow);
  border: 1px solid rgba(255,107,53,0.2);
  border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center;
  font-size: 26px; margin-bottom: 20px;
}
.philosophy-title { font-size: 20px; font-weight: 800; margin-bottom: 12px; color: var(--text-primary); }
.philosophy-desc { font-size: 14px; color: var(--text-secondary); line-height: 1.7; }

/* ══════════════════════════════════════════
   FEATURES GRID
══════════════════════════════════════════ */
.features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }

.feature-card {
  background: var(--navy-card);
  border: 1px solid var(--navy-border);
  border-radius: var(--radius); padding: 30px 28px;
  transition: all var(--transition);
  position: relative; overflow: hidden; cursor: default;
}
.feature-card::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: linear-gradient(90deg, transparent, var(--orange), transparent);
  opacity: 0; transition: opacity var(--transition);
}
.feature-card:hover::before { opacity: 1; }
.feature-card:hover {
  border-color: rgba(255,107,53,0.3);
  transform: translateY(-5px);
  box-shadow: 0 16px 40px rgba(0,0,0,0.3), 0 0 20px rgba(255,107,53,0.06);
}

.feature-icon {
  width: 54px; height: 54px;
  background: var(--orange-glow);
  border: 1px solid rgba(255,107,53,0.2);
  border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center;
  font-size: 26px; margin-bottom: 20px;
  transition: all var(--transition);
}
.feature-card:hover .feature-icon {
  background: rgba(255,107,53,0.18);
  border-color: rgba(255,107,53,0.35);
}
.feature-title { font-size: 18px; font-weight: 700; margin-bottom: 10px; letter-spacing: -0.02em; }
.feature-desc { font-size: 14px; color: var(--text-secondary); line-height: 1.65; }

/* PhysicsVerse feature card variant — cyan accent */
.feature-card-pv { cursor: default; border-color: rgba(0,217,255,0.18); }
.feature-card-pv::before {
  background: linear-gradient(90deg, transparent, #00d9ff, transparent);
}
.feature-card-pv:hover {
  border-color: rgba(0,217,255,0.35);
  box-shadow: 0 16px 40px rgba(0,0,0,0.3), 0 0 20px rgba(0,217,255,0.08);
}
.feature-icon-pv {
  background: rgba(0,217,255,0.08);
  border-color: rgba(0,217,255,0.25);
}
.feature-card-pv:hover .feature-icon-pv {
  background: rgba(0,217,255,0.14);
  border-color: rgba(0,217,255,0.4);
}
.fcard-badge-new {
  display: inline-block;
  background: #ffb84d; color: #0a0e27;
  font-size: 9px; font-weight: 800;
  letter-spacing: 0.08em; text-transform: uppercase;
  padding: 2px 6px; border-radius: 4px;
  vertical-align: middle; margin-left: 6px;
  animation: badge-pulse 2s ease-in-out infinite;
}
.fcard-link {
  display: inline-block; margin-top: 16px;
  font-size: 13px; font-weight: 700;
  color: #00d9ff; text-decoration: none;
  letter-spacing: 0.02em;
  transition: opacity 0.15s;
}
.fcard-link:hover { opacity: 0.75; }

/* ══════════════════════════════════════════
   PRICING CARDS
══════════════════════════════════════════ */
.pricing-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 28px; max-width: 720px; margin: 0 auto;
}

.pricing-card {
  background: var(--navy-card); border: 1.5px solid var(--navy-border);
  border-radius: var(--radius-lg); padding: 40px 32px;
  text-align: center; position: relative;
  transition: all var(--transition);
}
.pricing-card.featured {
  border-color: var(--orange);
  box-shadow: 0 0 0 1px rgba(255,107,53,0.2), var(--shadow-glow), var(--shadow);
  background: linear-gradient(145deg, var(--navy-card) 0%, rgba(21,34,64,0.9) 100%);
}
.pricing-card:hover { transform: translateY(-6px); }
.pricing-card.featured:hover { box-shadow: 0 0 0 1px rgba(255,107,53,0.3), 0 0 60px rgba(255,107,53,0.2), var(--shadow); }

.pricing-badge {
  position: absolute; top: -13px; left: 50%; transform: translateX(-50%);
  background: linear-gradient(135deg, var(--orange), var(--gold));
  color: #0A1628; padding: 5px 18px; border-radius: 30px;
  font-size: 12px; font-weight: 800; white-space: nowrap;
  box-shadow: 0 4px 12px rgba(255,107,53,0.4);
}

.pricing-plan {
  font-size: 13px; color: var(--text-muted);
  text-transform: uppercase; letter-spacing: 2px; margin-bottom: 10px; font-weight: 600;
}
.pricing-amount {
  font-size: 52px; font-weight: 900; color: var(--text-primary);
  margin-bottom: 6px; letter-spacing: -0.04em; line-height: 1;
}
.pricing-amount span { font-size: 22px; font-weight: 700; vertical-align: top; margin-top: 12px; display: inline-block; }
.pricing-period { font-size: 14px; color: var(--text-muted); margin-bottom: 32px; }

.pricing-features { list-style: none; margin-bottom: 32px; text-align: left; }
.pricing-features li {
  padding: 9px 0; border-bottom: 1px solid var(--navy-border);
  font-size: 14px; color: var(--text-secondary);
  display: flex; align-items: center; gap: 10px;
}
.pricing-features li:last-child { border-bottom: none; }
.pricing-features .check { color: var(--success); font-size: 16px; flex-shrink: 0; }

/* ══════════════════════════════════════════
   DASHBOARD
══════════════════════════════════════════ */
.dashboard-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 20px; }

.stat-card {
  background: var(--navy-card); border: 1px solid var(--navy-border);
  border-radius: var(--radius); padding: 24px;
  display: flex; flex-direction: column; gap: 8px;
  transition: all var(--transition);
}
.stat-card:hover { border-color: rgba(255,107,53,0.25); }
.stat-card .stat-label { font-size: 13px; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.5px; font-weight: 600; }
.stat-card .stat-value { font-size: 34px; font-weight: 900; color: var(--text-primary); letter-spacing: -0.04em; }
.stat-card .stat-change { font-size: 12px; color: var(--text-muted); }

.module-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 16px; }

.module-btn {
  background: var(--navy-card); border: 1px solid var(--navy-border);
  border-radius: var(--radius); padding: 26px 16px;
  text-align: center; cursor: pointer;
  transition: all var(--transition); text-decoration: none;
  display: flex; flex-direction: column; align-items: center; gap: 10px;
  color: var(--text-primary);
}
.module-btn:hover {
  border-color: var(--orange); background: var(--navy-hover); color: var(--orange);
  transform: translateY(-3px); box-shadow: 0 8px 24px rgba(255,107,53,0.1);
}
.module-btn .module-icon { font-size: 34px; }
.module-btn .module-name { font-size: 14px; font-weight: 700; letter-spacing: -0.01em; }
.module-btn .module-desc { font-size: 12px; color: var(--text-muted); }

/* ══════════════════════════════════════════
   ROADMAP
══════════════════════════════════════════ */
.roadmap-timeline { position: relative; }
.roadmap-timeline::before {
  content: ''; position: absolute; left: 29px; top: 0; bottom: 0; width: 2px;
  background: linear-gradient(180deg, var(--orange), var(--navy-border));
}
.roadmap-item { display: flex; gap: 24px; margin-bottom: 32px; position: relative; }
.roadmap-dot {
  width: 60px; height: 60px;
  background: var(--navy-card); border: 2px solid var(--orange); border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 18px; font-weight: 900; color: var(--orange); flex-shrink: 0; z-index: 1;
}
.roadmap-content {
  flex: 1; background: var(--navy-card); border: 1px solid var(--navy-border);
  border-radius: var(--radius); padding: 22px; transition: all var(--transition);
}
.roadmap-content:hover { border-color: rgba(255,107,53,0.3); }
.roadmap-month-title { font-size: 17px; margin-bottom: 4px; }
.roadmap-focus { font-size: 13px; color: var(--orange); margin-bottom: 12px; }
.roadmap-tasks { list-style: none; }
.roadmap-tasks li { padding: 4px 0; font-size: 13px; color: var(--text-secondary); display: flex; align-items: flex-start; gap: 8px; }
.roadmap-tasks li::before { content: '→'; color: var(--orange); flex-shrink: 0; }

/* ══════════════════════════════════════════
   SIMULATION
══════════════════════════════════════════ */
.simulation-container {
  background: var(--navy-mid); border: 1px solid var(--navy-border);
  border-radius: var(--radius); padding: 20px; margin: 20px 0; min-height: 300px;
}
.sim-canvas { width: 100%; border-radius: var(--radius-sm); }
.sim-controls { display: flex; flex-wrap: wrap; gap: 16px; margin-top: 16px; }
.sim-control { display: flex; flex-direction: column; gap: 4px; flex: 1; min-width: 120px; }
.sim-control label { font-size: 12px; color: var(--text-muted); }
.sim-control input[type=range] { accent-color: var(--orange); }
.sim-control .sim-value { font-size: 13px; color: var(--orange); font-weight: 600; }

/* ══════════════════════════════════════════
   SCORE / INTERVIEW
══════════════════════════════════════════ */
.score-circle {
  width: 100px; height: 100px; border-radius: 50%; border: 4px solid;
  display: flex; flex-direction: column; align-items: center; justify-content: center; margin: 0 auto 20px;
}
.score-circle.high { border-color: var(--success); color: var(--success); }
.score-circle.mid  { border-color: var(--warning); color: var(--warning); }
.score-circle.low  { border-color: var(--error); color: var(--error); }
.score-number { font-size: 28px; font-weight: 900; letter-spacing: -0.04em; }
.score-denom  { font-size: 12px; opacity: 0.7; }

/* ══════════════════════════════════════════
   COMMUNITY
══════════════════════════════════════════ */
.post-card {
  background: var(--navy-card); border: 1px solid var(--navy-border);
  border-radius: var(--radius); padding: 22px; transition: all var(--transition);
}
.post-card:hover { border-color: rgba(255,107,53,0.2); }
.post-meta { display: flex; align-items: center; gap: 12px; margin-bottom: 12px; }
.post-author { font-size: 13px; color: var(--text-muted); }
.post-title { font-size: 16px; font-weight: 600; margin-bottom: 8px; color: var(--text-primary); }
.post-content { font-size: 14px; color: var(--text-secondary); margin-bottom: 14px; }
.post-actions { display: flex; gap: 16px; align-items: center; }
.post-action-btn { background: none; border: none; color: var(--text-muted); cursor: pointer; font-size: 13px; display: flex; align-items: center; gap: 4px; transition: color var(--transition); }
.post-action-btn:hover, .post-action-btn.liked { color: var(--orange); }

/* ══════════════════════════════════════════
   FOOTER
══════════════════════════════════════════ */
.footer {
  background: var(--navy-deep);
  border-top: 1px solid var(--navy-border);
  padding: 56px 0 28px;
}
.footer-grid {
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px; margin-bottom: 48px;
}
.footer-brand-text { font-size: 22px; font-weight: 800; color: var(--text-primary); margin-bottom: 10px; letter-spacing: -0.03em; }
.footer-brand-text span { color: var(--orange); }
.footer-tagline { font-size: 13px; color: var(--text-muted); font-style: italic; line-height: 1.6; }
.footer-heading { font-size: 13px; font-weight: 700; color: var(--text-secondary); margin-bottom: 16px; text-transform: uppercase; letter-spacing: 1px; }
.footer-links { list-style: none; }
.footer-links li { margin-bottom: 10px; }
.footer-links a { font-size: 14px; color: var(--text-muted); transition: color var(--transition); }
.footer-links a:hover { color: var(--orange); }
.footer-bottom {
  border-top: 1px solid var(--navy-border); padding-top: 24px;
  display: flex; justify-content: space-between; align-items: center;
  flex-wrap: wrap; gap: 12px;
}
.footer-copy { font-size: 13px; color: var(--text-muted); }
.footer-disclaimer {
  background: rgba(255,107,53,0.05); border: 1px solid rgba(255,107,53,0.1);
  border-radius: var(--radius-sm); padding: 12px 16px;
  font-size: 12px; color: var(--text-muted); margin-top: 20px; line-height: 1.5;
}

/* ══════════════════════════════════════════
   AUTH PAGES
══════════════════════════════════════════ */
.auth-page {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  background:
    radial-gradient(ellipse 70% 50% at 30% 30%, rgba(255,107,53,0.06) 0%, transparent 55%),
    radial-gradient(ellipse 60% 50% at 70% 70%, rgba(245,200,66,0.03) 0%, transparent 55%),
    var(--navy-deep);
  padding: 24px;
  position: relative;
}
.auth-page::before {
  content: '';
  position: absolute; inset: 0;
  background-image: linear-gradient(rgba(30,50,88,0.15) 1px, transparent 1px), linear-gradient(90deg, rgba(30,50,88,0.15) 1px, transparent 1px);
  background-size: 48px 48px;
}
.auth-card {
  background: var(--navy-card); border: 1px solid var(--navy-border);
  border-radius: var(--radius-lg); padding: 44px;
  width: 100%; max-width: 480px;
  box-shadow: var(--shadow), 0 0 60px rgba(0,0,0,0.3);
  position: relative; z-index: 1;
}
.auth-logo { text-align: center; margin-bottom: 36px; }
.auth-logo .logo-mark { font-size: 44px; margin-bottom: 10px; }
.auth-logo .logo-text { font-size: 24px; font-weight: 800; color: var(--text-primary); letter-spacing: -0.03em; }
.auth-logo .logo-text span { color: var(--orange); }
.auth-logo .logo-sub { font-size: 13px; color: var(--text-muted); font-style: italic; margin-top: 6px; }
.auth-title { font-size: 26px; margin-bottom: 6px; letter-spacing: -0.03em; }
.auth-sub { font-size: 14px; color: var(--text-muted); margin-bottom: 30px; }
.auth-footer-link { text-align: center; font-size: 14px; color: var(--text-muted); margin-top: 22px; }

/* ══════════════════════════════════════════
   PAGE HEADER
══════════════════════════════════════════ */
.page-header { padding: 32px 0 28px; border-bottom: 1px solid var(--navy-border); margin-bottom: 32px; }
.page-title { font-size: clamp(22px, 3vw, 32px); margin-bottom: 4px; letter-spacing: -0.03em; }
.page-sub { font-size: 15px; color: var(--text-muted); }

/* ══════════════════════════════════════════
   TABS
══════════════════════════════════════════ */
.tabs { display: flex; gap: 2px; background: var(--navy-mid); border-radius: var(--radius-sm); padding: 4px; margin-bottom: 24px; }
.tab-btn { flex: 1; padding: 10px 16px; background: none; border: none; color: var(--text-muted); cursor: pointer; border-radius: 6px; font-size: 14px; font-weight: 500; transition: all var(--transition); }
.tab-btn.active { background: var(--navy-card); color: var(--text-primary); box-shadow: 0 2px 8px rgba(0,0,0,0.2); }
.tab-btn:hover:not(.active) { color: var(--text-primary); }
.tab-content { display: none; }
.tab-content.active { display: block; }

/* ══════════════════════════════════════════
   ANIMATIONS
══════════════════════════════════════════ */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(18px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes float {
  0%   { transform: translateY(0px) rotate(0deg); }
  50%  { transform: translateY(-20px) rotate(180deg); }
  100% { transform: translateY(0px) rotate(360deg); }
}
@keyframes pulse { 0%,100%{opacity:1} 50%{opacity:0.5} }
@keyframes shimmer { 0%{background-position:-200% 0} 100%{background-position:200% 0} }

.fade-in { animation: fadeInUp 0.4s ease; }
.pulse { animation: pulse 2s infinite; }

/* ══════════════════════════════════════════
   RESPONSIVE
══════════════════════════════════════════ */
@media (max-width: 900px) {
  .philosophy-grid { grid-template-columns: 1fr; }
  .features-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .navbar-nav {
    display: none; position: absolute; top: 66px; left: 0; right: 0;
    background: rgba(10,22,40,0.98);
    flex-direction: column; padding: 12px;
    border-bottom: 1px solid var(--navy-border); gap: 2px;
    backdrop-filter: blur(24px); z-index: 999;
  }
  .navbar-nav.open { display: flex; }
  .navbar-toggle { display: block; }
  .hero { padding: 0 0 60px; }
  .hero-inner { padding-top: 60px; }
  .hero-title { letter-spacing: -0.03em; }
  .auth-card { padding: 32px 22px; }
  .roadmap-timeline::before { left: 23px; }
  .roadmap-dot { width: 48px; height: 48px; font-size: 16px; }
  .section { padding: 60px 0; }
}

@media (max-width: 600px) {
  .features-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .hero-cta { flex-direction: column; align-items: center; }
  .pricing-grid { grid-template-columns: 1fr; }
}

/* ══════════════════════════════════════════
   UTILITIES
══════════════════════════════════════════ */
.text-center { text-align: center; }
.text-orange { color: var(--orange); }
.text-gold   { color: var(--gold); }
.text-muted  { color: var(--text-muted); }
.text-success { color: var(--success); }
.text-error   { color: var(--error); }
.text-warning { color: var(--warning); }
.mt-auto { margin-top: auto; }
.d-flex { display: flex; }
.align-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-8  { gap: 8px; }
.gap-12 { gap: 12px; }
.gap-16 { gap: 16px; }
.mb-4  { margin-bottom: 4px; }
.mb-8  { margin-bottom: 8px; }
.mb-12 { margin-bottom: 12px; }
.mb-16 { margin-bottom: 16px; }
.mb-20 { margin-bottom: 20px; }
.mb-24 { margin-bottom: 24px; }
.mb-32 { margin-bottom: 32px; }
.w-full { width: 100%; }
.hidden { display: none !important; }
.divider { height: 1px; background: var(--navy-border); margin: 24px 0; }

/* ── EXTRA: steps list (used on homepage) ── */
.steps { display: flex; flex-direction: column; gap: 0; }
.step  { display: flex; gap: 20px; padding: 18px 0; border-bottom: 1px solid var(--navy-border); }
.step:last-child { border-bottom: none; }
.step-num {
  width: 34px; height: 34px; border-radius: 50%;
  background: var(--orange-glow); border: 1px solid rgba(255,107,53,0.3);
  color: var(--orange); display: flex; align-items: center; justify-content: center;
  font-weight: 900; font-size: 14px; flex-shrink: 0;
}
.step-body h4 { font-size: 14px; margin-bottom: 3px; }
.step-body p  { font-size: 13px; color: var(--text-muted); }

/* ── Founding banner ── */
.founding-banner {
  background: linear-gradient(145deg, var(--navy-card), rgba(21,34,64,0.8));
  border: 1.5px solid rgba(255,107,53,0.3);
  border-radius: var(--radius-lg);
  padding: 60px 48px; text-align: center; max-width: 640px; margin: 0 auto;
  box-shadow: 0 0 40px rgba(255,107,53,0.06);
}
.founding-banner h3 { font-size: 28px; font-weight: 900; margin-bottom: 20px; line-height: 1.25; letter-spacing: -0.03em; }
.founding-banner p  { font-size: 16px; color: var(--text-secondary); line-height: 1.7; margin-bottom: 8px; }
.founding-banner .founding-note { font-size: 13px; color: var(--text-muted); margin-top: 24px; }

/* ══════════════════════════════════════════
   NAVBAR PHASE 1 — Credits, Lang, Profile
══════════════════════════════════════════ */
.navbar-right {
  display: flex; align-items: center; gap: 10px; flex-shrink: 0;
}

.credits-badge {
  display: inline-flex; align-items: center; gap: 5px;
  background: rgba(255,107,53,0.12); border: 1px solid rgba(255,107,53,0.3);
  color: var(--orange); padding: 5px 12px; border-radius: 20px;
  font-size: 13px; font-weight: 700; text-decoration: none;
  transition: all var(--transition); white-space: nowrap;
}
.credits-badge:hover { background: rgba(255,107,53,0.2); color: var(--orange); }

.plan-pill {
  display: inline-flex; align-items: center;
  background: var(--navy-card); border: 1px solid var(--navy-border);
  color: var(--text-secondary); padding: 4px 10px; border-radius: 20px;
  font-size: 12px; font-weight: 600; text-transform: capitalize; white-space: nowrap;
}

.trial-pill {
  display: inline-flex; align-items: center;
  background: rgba(245,200,66,0.1); border: 1px solid rgba(245,200,66,0.3);
  color: var(--gold); padding: 4px 10px; border-radius: 20px;
  font-size: 12px; font-weight: 600; white-space: nowrap;
}

.lang-switcher {
  display: inline-flex; gap: 2px;
  background: var(--navy-mid); border: 1px solid var(--navy-border);
  border-radius: var(--radius-sm); padding: 2px;
}
.lang-btn {
  background: none; border: none; color: var(--text-muted);
  padding: 4px 8px; border-radius: 6px; font-size: 11px; font-weight: 700;
  cursor: pointer; transition: all var(--transition); line-height: 1.4;
  font-family: var(--font);
}
.lang-btn:hover { color: var(--text-primary); }
.lang-btn.active { background: var(--orange); color: #fff; }

.profile-dropdown { position: relative; }
.profile-trigger {
  display: flex; align-items: center; gap: 7px;
  background: var(--navy-card); border: 1px solid var(--navy-border);
  color: var(--text-primary); border-radius: var(--radius-sm);
  padding: 6px 12px; cursor: pointer; font-size: 13px; font-weight: 600;
  transition: all var(--transition); font-family: var(--font);
}
.profile-trigger:hover { border-color: var(--orange); }
.profile-avatar {
  width: 26px; height: 26px; border-radius: 50%;
  background: linear-gradient(135deg, var(--orange), var(--orange-light));
  display: flex; align-items: center; justify-content: center;
  font-size: 13px; font-weight: 800; color: #fff; flex-shrink: 0;
}
.profile-name { max-width: 80px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.profile-caret { color: var(--text-muted); font-size: 10px; }
.profile-menu {
  display: none; position: absolute; right: 0; top: calc(100% + 6px);
  background: var(--navy-card); border: 1px solid var(--navy-border);
  border-radius: var(--radius); padding: 6px; min-width: 180px;
  box-shadow: var(--shadow); z-index: 1100;
}
.profile-menu.open { display: block; animation: fadeInUp 0.15s ease; }
.profile-menu-item {
  display: block; padding: 10px 14px; border-radius: var(--radius-sm);
  font-size: 14px; color: var(--text-secondary); text-decoration: none;
  transition: all var(--transition); cursor: pointer;
  border: none; background: none; width: 100%; text-align: left;
  font-family: var(--font); font-weight: 500;
}
.profile-menu-item:hover { background: var(--navy-hover); color: var(--text-primary); }
.profile-menu-item.profile-menu-logout { color: var(--error); }
.profile-menu-item.profile-menu-logout:hover { background: rgba(255,77,106,0.08); color: var(--error); }
.profile-menu-divider { height: 1px; background: var(--navy-border); margin: 6px 0; }

/* Mobile-only nav items (logout/login inside hamburger menu) */
.nav-mobile-only { display: none; }

@media (max-width: 768px) {
  .navbar-right { display: none; }
  .nav-mobile-only { display: block; }
}

/* ══════════════════════════════════════════
   BILLING PAGE
══════════════════════════════════════════ */
.billing-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin-bottom: 32px; }
.balance-card {
  background: linear-gradient(135deg, var(--navy-card) 0%, rgba(21,34,64,0.9) 100%);
  border: 1.5px solid rgba(255,107,53,0.3);
  border-radius: var(--radius); padding: 32px;
  box-shadow: 0 0 30px rgba(255,107,53,0.06);
}
.balance-amount {
  font-size: 52px; font-weight: 900; color: var(--orange);
  letter-spacing: -0.04em; line-height: 1; margin-bottom: 6px;
}
.tx-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.tx-table th {
  padding: 10px 12px; text-align: left; border-bottom: 1.5px solid var(--navy-border);
  color: var(--text-muted); font-size: 11px; text-transform: uppercase; letter-spacing: 0.5px;
  font-weight: 700;
}
.tx-table td { padding: 11px 12px; border-bottom: 1px solid var(--navy-border); color: var(--text-secondary); }
.tx-table tr:last-child td { border-bottom: none; }
.tx-table tr:hover td { background: var(--navy-hover); }
.tx-amount-positive { color: var(--success); font-weight: 700; }
.tx-amount-negative { color: var(--error); font-weight: 700; }
.tx-type-badge {
  display: inline-block; padding: 2px 8px; border-radius: 10px;
  font-size: 11px; font-weight: 600; text-transform: capitalize;
}

/* ══════════════════════════════════════════
   PRICING PAGE V2 (5-tier)
══════════════════════════════════════════ */
.pricing-grid-5 {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
}
.pricing-card-v2 {
  background: var(--navy-card); border: 1.5px solid var(--navy-border);
  border-radius: var(--radius); padding: 28px 20px;
  text-align: center; position: relative;
  transition: all var(--transition); display: flex; flex-direction: column;
}
.pricing-card-v2.featured {
  border-color: var(--orange);
  box-shadow: 0 0 0 1px rgba(255,107,53,0.2), var(--shadow-glow);
  background: linear-gradient(145deg, var(--navy-card) 0%, rgba(21,34,64,0.95) 100%);
}
.pricing-card-v2:hover { transform: translateY(-4px); }
.pricing-card-v2.featured:hover { box-shadow: 0 0 0 1px rgba(255,107,53,0.35), 0 0 50px rgba(255,107,53,0.18); }
.pricing-name { font-size: 14px; font-weight: 700; letter-spacing: -0.01em; margin-bottom: 12px; color: var(--text-primary); }
.pricing-price { font-size: 36px; font-weight: 900; color: var(--text-primary); letter-spacing: -0.04em; line-height: 1; }
.pricing-price .rupee { font-size: 18px; vertical-align: top; margin-top: 6px; display: inline-block; font-weight: 700; }
.pricing-mo { font-size: 12px; color: var(--text-muted); margin-bottom: 6px; }
.pricing-credits-count { font-size: 13px; color: var(--orange); font-weight: 600; margin-bottom: 16px; }
.pricing-feat-list { list-style: none; text-align: left; margin-bottom: 20px; flex: 1; }
.pricing-feat-list li { font-size: 12px; color: var(--text-secondary); padding: 5px 0; display: flex; align-items: flex-start; gap: 7px; border-bottom: 1px solid rgba(30,50,88,0.5); }
.pricing-feat-list li:last-child { border-bottom: none; }
.pricing-feat-list .ck { color: var(--success); flex-shrink: 0; font-size: 13px; }

.payg-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-bottom: 32px; }
.payg-card {
  background: var(--navy-card); border: 1px solid var(--navy-border);
  border-radius: var(--radius); padding: 24px; text-align: center;
  transition: all var(--transition);
}
.payg-card:hover { border-color: rgba(255,107,53,0.3); transform: translateY(-2px); }
.payg-price { font-size: 42px; font-weight: 900; color: var(--gold); letter-spacing: -0.04em; }
.payg-credits { font-size: 20px; color: var(--text-primary); font-weight: 700; margin-bottom: 4px; }
.payg-label { font-size: 12px; color: var(--text-muted); }

.special-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin-bottom: 40px; }
.special-card {
  background: var(--navy-card); border: 1px solid var(--navy-border);
  border-radius: var(--radius); padding: 28px; transition: all var(--transition);
}
.special-card:hover { border-color: rgba(255,107,53,0.25); }

.faq-details {
  border-bottom: 1px solid var(--navy-border);
}
.faq-details summary {
  padding: 18px 0; cursor: pointer; font-size: 15px; font-weight: 600;
  color: var(--text-primary); display: flex; justify-content: space-between;
  align-items: center; list-style: none; user-select: none;
}
.faq-details summary::-webkit-details-marker { display: none; }
.faq-details summary::after { content: '+'; color: var(--text-muted); font-size: 18px; font-weight: 300; }
.faq-details[open] summary::after { content: '−'; color: var(--orange); }
.faq-details .faq-body { font-size: 14px; color: var(--text-secondary); padding-bottom: 18px; line-height: 1.75; }

@media (max-width: 1024px) {
  .pricing-grid-5 { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 768px) {
  .pricing-grid-5 { grid-template-columns: repeat(2, 1fr); }
  .special-grid { grid-template-columns: 1fr; }
  .billing-grid { grid-template-columns: 1fr; }
}
@media (max-width: 500px) {
  .pricing-grid-5 { grid-template-columns: 1fr; }
  .payg-grid { grid-template-columns: 1fr; }
}

/* ── PhysicsVerse nav item (shared across all pages) ── */
.nav-physicsverse {
  color: #00d9ff !important;
  font-weight: 600 !important;
  display: inline-flex !important;
  align-items: center;
  gap: 6px;
}
.nav-physicsverse:hover { text-shadow: 0 0 14px rgba(0,217,255,0.65) !important; }
.nav-badge-new {
  background: #ffb84d;
  color: #0a0e27;
  font-size: 9px;
  font-weight: 800;
  letter-spacing: 0.08em;
  padding: 2px 5px;
  border-radius: 4px;
  text-transform: uppercase;
  animation: badge-pulse 2s ease-in-out infinite;
  line-height: 1;
}
@keyframes badge-pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: 0.72; transform: scale(1.1); }
}