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

:root {
  --bg: #020617;
  --bg-elevated: #0b1220;
  --bg-muted: #0f172a;
  --accent: #fbbf24;
  --accent-border: #facc15;
  --accent-soft: rgba(250, 204, 21, 0.16);
  --text-main: #e5e7eb;
  --text-muted: #9ca3af;
  --border-subtle: #1f2937;
  --font-main: system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Text", "Inter", sans-serif;
}

body.site-body,
body.chat-body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-main);
  background: radial-gradient(circle at top left, #0f172a, #020617 60%);
  color: var(--text-main);
}

/* Header */

.site-header,
.chat-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  padding: 0.9rem 1.25rem;
  background: rgba(15, 23, 42, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-subtle);
}

.site-header {
  align-items: flex-start;
  flex-wrap: nowrap;
}

.logo-block {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  min-width: 0;
}

.logo-icon {
  width: 38px;
  height: 38px;
  border-radius: 0.9rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(circle at top left, #1e293b, #020617);
  border: 2px solid var(--accent-border);
  box-shadow: 0 0 0 2px rgba(15, 23, 42, 0.85);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--accent);
  flex-shrink: 0;
}

.logo-text {
  display: flex;
  flex-direction: column;
}

.logo-title {
  font-size: 0.95rem;
  font-weight: 700;
}

.logo-subtitle {
  font-size: 0.78rem;
  color: var(--text-muted);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

/* Header right group */

.header-right {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 0.35rem;
  flex-shrink: 0;
}

.btn-ai-pill {
  display: inline-flex;
  align-items: center;
  padding: 0.3rem 0.9rem;
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 600;
  background: linear-gradient(135deg, #facc15, #f97316);
  color: #451a03;
  text-decoration: none;
  white-space: nowrap;
  transition: transform 0.08s ease, box-shadow 0.15s ease;
}

.btn-ai-pill:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 20px rgba(250, 204, 21, 0.5);
}

/* Hamburger button */

.hamburger-btn {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 4px;
  width: 38px;
  height: 38px;
  padding: 0;
  background: transparent;
  border: 1px solid var(--border-subtle);
  border-radius: 0.5rem;
  cursor: pointer;
  transition: border-color 0.15s ease;
}

.hamburger-btn:hover {
  border-color: var(--accent-border);
}

.hamburger-line {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--text-main);
  border-radius: 1px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.hamburger-btn.open .hamburger-line:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

.hamburger-btn.open .hamburger-line:nth-child(2) {
  opacity: 0;
}

.hamburger-btn.open .hamburger-line:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

/* Mobile menu dropdown */

.mobile-menu {
  display: none;
  position: absolute;
  top: 100%;
  right: 1.25rem;
  min-width: 200px;
  background: rgba(15, 23, 42, 0.98);
  border: 1px solid var(--border-subtle);
  border-radius: 0.75rem;
  padding: 0.5rem 0;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.5);
  z-index: 30;
}

.mobile-menu.open {
  display: flex;
  flex-direction: column;
}

.mobile-menu-link {
  padding: 0.6rem 1rem;
  font-size: 0.88rem;
  color: var(--text-main);
  text-decoration: none;
  transition: background 0.1s ease;
}

.mobile-menu-link:hover {
  background: rgba(250, 204, 21, 0.08);
  color: #fef3c7;
}

.phase-pill {
  font-size: 0.78rem;
  padding: 0.25rem 0.8rem;
  border-radius: 999px;
  border: 1px solid rgba(148, 163, 184, 0.7);
  color: var(--text-main);
}

/* Layout */

.main {
  max-width: 960px;
  margin: 0 auto;
  padding: 1.6rem 1.25rem 3rem;
}

.hero {
  border-radius: 1.5rem;
  padding: 1.75rem 1.5rem 1.5rem;
  border: 1px solid var(--border-subtle);
  background: radial-gradient(circle at top left, #0b1120, #020617 65%);
  box-shadow: 0 18px 50px rgba(15, 23, 42, 0.8);
}

.hero-senior {
  border-left: 6px solid var(--accent-border);
}

.hero-title {
  font-size: 2rem;
  line-height: 1.25;
  margin: 0 0 0.6rem;
}

.hero-kicker {
  font-size: 0.86rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 0.9rem;
}

.hero-panel {
  background: linear-gradient(to bottom right, rgba(15, 23, 42, 0.92), rgba(15, 23, 42, 0.96));
  border-radius: 1.1rem;
  padding: 1rem 1rem 1.2rem;
  border: 1px solid rgba(148, 163, 184, 0.4);
}

.hero-panel p {
  font-size: 0.95rem;
  color: var(--text-main);
  line-height: 1.7;
}

.hero-panel p + p {
  margin-top: 0.7rem;
}

.hero-cta {
  margin-top: 0.9rem;
}

.disclaimer {
  color: var(--text-muted);
  margin-top: 0.6rem;
}

/* Sections */

.section,
.section-grid {
  margin-top: 2rem;
}

.section-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1.2rem;
}

@media (min-width: 768px) {
  .hero {
    padding: 2rem 2rem 1.8rem;
  }
  .hero-title {
    font-size: 2.2rem;
  }
  .section-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.card {
  background: var(--bg-elevated);
  border-radius: 1.25rem;
  padding: 1.2rem 1.2rem 1.3rem;
  border: 1px solid var(--border-subtle);
}

.section-muted {
  background: var(--bg-muted);
  border-radius: 1.25rem;
  padding: 1.4rem 1.25rem 1.5rem;
  border: 1px solid var(--border-subtle);
}

/* Lists */

.checklist {
  list-style: none;
  padding-left: 0;
  margin: 0.8rem 0 0;
}

.checklist li {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  margin-top: 0.4rem;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.checklist li::before {
  content: "✔";
  font-size: 0.8rem;
  margin-top: 0.15rem;
  color: var(--accent-border);
}

/* Affiliate grid */

.affiliate-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0.8rem;
  margin-top: 1rem;
}

@media (min-width: 640px) {
  .affiliate-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.affiliate-card {
  display: flex;
  flex-direction: column;
  padding: 0.85rem 0.95rem;
  border-radius: 0.95rem;
  border: 1px solid rgba(250, 204, 21, 0.45);
  background: radial-gradient(circle at top left, var(--accent-soft), #020617);
  text-decoration: none;
  transition: border 0.15s ease, transform 0.08s ease, box-shadow 0.15s ease;
}

.affiliate-card:hover {
  border-color: var(--accent-border);
  transform: translateY(-1px);
  box-shadow: 0 14px 32px rgba(15, 23, 42, 0.9);
}

.affiliate-name {
  font-size: 0.95rem;
  font-weight: 600;
  color: #fef3c7;
}

.affiliate-tagline {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-top: 0.15rem;
}

.affiliate-note {
  margin-top: 0.8rem;
  color: var(--text-muted);
  font-size: 0.82rem;
}

/* Buttons */

.btn-primary,
.btn-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.55rem 1.1rem;
  border-radius: 999px;
  font-size: 0.9rem;
  font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease, transform 0.08s ease;
}

.btn-primary {
  background: linear-gradient(135deg, #facc15, #f97316);
  color: #451a03;
  box-shadow: 0 12px 30px rgba(250, 204, 21, 0.55);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 16px 36px rgba(251, 191, 36, 0.7);
}

.btn-outline {
  border-color: rgba(148, 163, 184, 0.8);
  color: var(--text-main);
  background: rgba(15, 23, 42, 0.9);
}

.btn-outline:hover {
  border-color: var(--accent-border);
  color: #fef3c7;
}

/* Text helpers */

.accent {
  color: var(--accent-border);
}

.small {
  font-size: 0.8rem;
}

.section h2 {
  margin-top: 0;
}

/* Footer */

.site-footer,
.chat-footer {
  padding: 1rem 1.25rem 1.5rem;
  border-top: 1px solid var(--border-subtle);
  background: rgba(15, 23, 42, 0.98);
  color: var(--text-muted);
  text-align: center;
}

.footer-text {
  margin: 0.25rem 0;
}

/* Chat layout */

.chat-header-main {
  display: flex;
  flex-direction: column;
}

.chat-title {
  font-weight: 600;
  font-size: 0.95rem;
}

.chat-subtitle {
  font-size: 0.78rem;
  color: var(--text-muted);
}

.chat-back-link {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-decoration: none;
}

.chat-back-link:hover {
  text-decoration: underline;
}

.chat-main {
  max-width: 920px;
  margin: 0 auto;
  padding: 1.25rem 1.25rem 1rem;
  display: flex;
  flex-direction: column;
  min-height: calc(100vh - 120px);
}

.chat-window {
  flex: 1 1 auto;
  border-radius: 1rem;
  border: 1px solid var(--border-subtle);
  background: radial-gradient(circle at top left, #020617, #030712 55%, #020617 100%);
  padding: 1rem;
  overflow-y: auto;
  max-height: calc(100vh - 210px);
}

.message-row {
  display: flex;
  margin-bottom: 0.7rem;
}

.message-row.assistant {
  justify-content: flex-start;
}

.message-row.user {
  justify-content: flex-end;
}

.message-bubble {
  max-width: 100%;
  border-radius: 1rem;
  padding: 0.65rem 0.85rem;
  font-size: 0.92rem;
  line-height: 1.55;
}

.message-row.assistant .message-bubble {
  background: #020617;
  border: 1px solid var(--border-subtle);
}

.message-row.user .message-bubble {
  background: #facc15;
  color: #422006;
}

.message-small {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.chat-form {
  margin-top: 0.9rem;
  display: flex;
  gap: 0.6rem;
  align-items: flex-end;
}

.chat-input {
  flex: 1 1 auto;
  resize: none;
  border-radius: 0.9rem;
  border: 1px solid var(--border-subtle);
  padding: 0.6rem 0.75rem;
  font-family: var(--font-main);
  font-size: 0.92rem;
  background: rgba(15, 23, 42, 0.9);
  color: var(--text-main);
  min-height: 44px;
  max-height: 120px;
}

.chat-input:focus {
  outline: none;
  border-color: var(--accent-border);
  box-shadow: 0 0 0 1px rgba(250, 204, 21, 0.7);
}

.chat-send {
  padding-inline: 1.1rem;
  height: 44px;
}

/* Linkified URLs in messages */

.message-bubble a {
  color: #38bdf8;
  text-decoration: underline;
}

/* Responsive */

@media (max-width: 640px) {
  .chat-header {
    flex-wrap: wrap;
  }
  .chat-main {
    padding-bottom: 0.75rem;
  }
  .chat-window {
    max-height: calc(100vh - 235px);
  }
}

.hero-kicker .hero-link {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.78rem;
}

.hero-kicker .hero-link:hover {
  text-decoration: underline;
}