/* ============================================================
   ClymbUp.ai — Shared Base Stylesheet
   cu-base.css  |  Version 1.0
   ============================================================ */

/* 1. FONTS
   ---------------------------------------------------------- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800;900&display=swap');

/* 2. CUSTOM PROPERTIES
   ---------------------------------------------------------- */
:root {
  /* Background */
  --bg: #0b1220;

  /* Text */
  --text: #eaf0ff;
  --muted: #8d9ec6;

  /* Accents */
  --accent:  #4da3ff;
  --accent2: #7cf0c5;

  /* Surfaces */
  --panel:  rgba(255,255,255,.06);
  --panel2: rgba(255,255,255,.03);
  --line:   rgba(255,255,255,.10);

  /* Shadow */
  --shadow: 0 16px 48px rgba(0,0,0,.4);

  /* Radius */
  --radius: 18px;

  /* Type scale */
  --fs-xs:   12px;
  --fs-sm:   13px;
  --fs-base: 15px;
  --fs-md:   17px;
  --fs-lg:   22px;
  --fs-xl:   32px;
  --fs-2xl:  44px;
  --fs-3xl:  56px;

  /* Spacing */
  --gap-xs: 6px;
  --gap-sm: 10px;
  --gap-md: 16px;
  --gap-lg: 28px;
  --gap-xl: 48px;

  /* Easing */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
}

/* 3. RESET + BASE
   ---------------------------------------------------------- */
*, *::before, *::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: 'Inter', ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
  font-size: var(--fs-base);
  line-height: 1.55;
  color: var(--text);
  background:
    radial-gradient(ellipse 1400px 700px at 18% -8%, rgba(77,163,255,.20) 0%, transparent 58%),
    radial-gradient(ellipse 900px 600px at 88% 8%,  rgba(124,240,197,.13) 0%, transparent 52%),
    var(--bg);
  background-attachment: fixed;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-feature-settings: "cv11", "ss01";
}

a { color: inherit; text-decoration: none; }
p { margin: 0 0 10px; }
p:last-child { margin-bottom: 0; }
ul, ol { padding-left: 20px; margin: 0 0 10px; }
img { max-width: 100%; display: block; }

/* 4. LAYOUT CONTAINERS
   ---------------------------------------------------------- */
.wrap {
  max-width: 860px;
  margin: 0 auto;
  padding: 0 20px 80px;
}

.wrap--wide {
  max-width: 1040px;
  margin: 0 auto;
  padding: 0 20px 80px;
}

.stack {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

/* 5. HEADER + NAV
   ---------------------------------------------------------- */
header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 20px;
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(11,18,32,.82);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--line);
  margin: 0 -20px;
}

.brand-wordmark {
  font-weight: 800;
  font-size: 15px;
  letter-spacing: -.3px;
  background: linear-gradient(120deg, var(--text) 55%, var(--accent2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  white-space: nowrap;
}

.brand-logo-img {
  height: 60px;
  width: auto;
}

nav {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.chip {
  border: 1px solid var(--line);
  background: rgba(255,255,255,.04);
  padding: 6px 13px;
  border-radius: 999px;
  text-decoration: none;
  color: var(--muted);
  font-weight: 500;
  font-size: var(--fs-sm);
  transition: color .15s, border-color .15s, background .15s;
  white-space: nowrap;
}
.chip:hover {
  color: var(--text);
  border-color: rgba(255,255,255,.22);
  background: rgba(255,255,255,.08);
}
.chip--active {
  color: var(--text);
  border-color: rgba(77,163,255,.4);
  background: rgba(77,163,255,.10);
}

/* 6. CARDS
   ---------------------------------------------------------- */
.card {
  background: linear-gradient(160deg, var(--panel), var(--panel2));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 30px;
}

.card--flat {
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 14px;
  padding: 20px;
}

.card--hero {
  background: linear-gradient(160deg, rgba(77,163,255,.09), rgba(124,240,197,.06));
  border: 1px solid rgba(77,163,255,.22);
  border-radius: var(--radius);
  box-shadow: 0 24px 64px rgba(0,0,0,.5), inset 0 1px 0 rgba(77,163,255,.12);
  padding: 44px 36px;
}

.card--stat {
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 14px;
  padding: 22px 18px;
  text-align: center;
}

/* 7. TYPOGRAPHY
   ---------------------------------------------------------- */
h1, h2, h3, h4 { margin: 0 0 10px; line-height: 1.1; }

h1 {
  font-size: var(--fs-2xl);
  font-weight: 800;
  letter-spacing: -.8px;
}
h2 {
  font-size: var(--fs-xl);
  font-weight: 700;
  letter-spacing: -.4px;
}
h3 {
  font-size: var(--fs-md);
  font-weight: 600;
  letter-spacing: -.1px;
}

.eyebrow {
  display: block;
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--accent2);
  margin: 0 0 10px;
}

.lead {
  font-size: var(--fs-md);
  color: var(--muted);
  line-height: 1.6;
  max-width: 56ch;
  margin: 0 0 20px;
}

.text-center { text-align: center; }
.text-muted   { color: var(--muted); }
.text-accent  { color: var(--accent); }
.text-accent2 { color: var(--accent2); }

@media (max-width: 520px) {
  h1 { font-size: 34px; }
  h2 { font-size: 26px; }
}

/* 8. TAGLINE PILL
   ---------------------------------------------------------- */
.tagline-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 5px 14px 5px 9px;
  border-radius: 999px;
  border: 1px solid rgba(124,240,197,.28);
  background: rgba(124,240,197,.07);
  font-size: var(--fs-sm);
  font-weight: 600;
  color: var(--text);
}

.pulse-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent2);
  flex-shrink: 0;
  animation: pulse 2.2s ease-in-out infinite;
}

@keyframes pulse {
  0%   { box-shadow: 0 0 0 0 rgba(124,240,197,.6); }
  65%  { box-shadow: 0 0 0 7px rgba(124,240,197,0); }
  100% { box-shadow: 0 0 0 0 rgba(124,240,197,0); }
}

/* 9. BUTTONS
   ---------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 22px;
  border-radius: 14px;
  font-family: inherit;
  font-weight: 700;
  font-size: var(--fs-base);
  border: 1px solid transparent;
  cursor: pointer;
  white-space: nowrap;
  text-decoration: none;
  transition: transform .16s var(--ease-out), box-shadow .16s, opacity .16s;
}
.btn:hover  { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn--primary {
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: #07101d;
  box-shadow: 0 4px 20px rgba(77,163,255,.35);
}
.btn--primary:hover {
  box-shadow: 0 8px 30px rgba(77,163,255,.48);
}

.btn--ghost {
  border-color: var(--line);
  background: rgba(255,255,255,.05);
  color: var(--text);
}
.btn--ghost:hover {
  border-color: rgba(255,255,255,.22);
  background: rgba(255,255,255,.09);
}

.btn--sm {
  padding: 8px 16px;
  font-size: var(--fs-sm);
  border-radius: 10px;
}

.cta-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: center;
}

/* 10. GRID LAYOUTS
   ---------------------------------------------------------- */

/* 3-column grid — stat/icon cards */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}
@media (max-width: 820px) { .grid-3 { grid-template-columns: 1fr 1fr; } }
@media (max-width: 520px) { .grid-3 { grid-template-columns: 1fr; } }

/* 2-column layout */
.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  gap: 20px;
  align-items: start;
}
@media (max-width: 820px) { .grid-2 { grid-template-columns: 1fr; } }

/* Bento — asymmetric 2fr / 1fr with spanning left cell */
.bento {
  display: grid;
  grid-template-columns: 2fr 1fr;
  grid-template-rows: 1fr 1fr;
  gap: 12px;
}
.bento > :first-child { grid-row: span 2; }
@media (max-width: 680px) {
  .bento { grid-template-columns: 1fr; grid-template-rows: unset; }
  .bento > :first-child { grid-row: span 1; }
}

/* 11. STEPS / TIMELINE LAYOUT
   ---------------------------------------------------------- */
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  position: relative;
  margin-top: 24px;
}
.steps::before {
  content: '';
  position: absolute;
  top: 19px;
  left: calc(100% / 6);
  right: calc(100% / 6);
  height: 1px;
  background: linear-gradient(90deg, transparent 0%, var(--accent) 30%, var(--accent2) 70%, transparent 100%);
  pointer-events: none;
}
.step { padding: 0 16px 0 0; }
.step-num {
  width: 38px;
  height: 38px;
  border-radius: 11px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(77,163,255,.13);
  border: 1px solid rgba(77,163,255,.32);
  color: var(--accent);
  font-weight: 800;
  font-size: 14px;
  margin-bottom: 14px;
  position: relative;
  z-index: 1;
}
.step h3 { margin: 0 0 6px; }
.step p  { font-size: var(--fs-sm); color: var(--muted); margin: 0; }

@media (max-width: 680px) {
  .steps { grid-template-columns: 1fr; gap: 20px; }
  .steps::before { display: none; }
  .step { padding: 0; }
}

/* 12. ICON BOX
   ---------------------------------------------------------- */
.icon-box {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(124,240,197,.10);
  border: 1px solid rgba(124,240,197,.22);
  color: var(--accent2);
  flex-shrink: 0;
}
.icon-box svg { width: 18px; height: 18px; stroke-width: 1.8; }

.icon-box--blue {
  background: rgba(77,163,255,.10);
  border-color: rgba(77,163,255,.22);
  color: var(--accent);
}

/* 13. BENEFIT LIST
   ---------------------------------------------------------- */
.benefit-list {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.benefit-list li {
  display: flex;
  gap: 14px;
  align-items: flex-start;
}
.benefit-list li strong { display: block; margin-bottom: 2px; }
.benefit-list li p { margin: 0; font-size: var(--fs-sm); color: var(--muted); line-height: 1.5; }

/* 14. STAT ELEMENTS
   ---------------------------------------------------------- */
.stat-num {
  font-size: 36px;
  font-weight: 800;
  letter-spacing: -2px;
  color: var(--text);
  line-height: 1;
}
.stat-label {
  font-size: var(--fs-sm);
  color: var(--muted);
  margin-top: 5px;
  line-height: 1.4;
}

/* 15. ACCORDION / DETAILS
   ---------------------------------------------------------- */
details {
  border: 1px solid var(--line);
  background: rgba(255,255,255,.04);
  border-radius: 14px;
  padding: 14px 18px;
  transition: background .15s;
}
details[open] { background: rgba(255,255,255,.065); }
details + details { margin-top: 8px; }

summary {
  cursor: pointer;
  font-weight: 600;
  font-size: var(--fs-base);
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  user-select: none;
  gap: 12px;
}
summary::-webkit-details-marker { display: none; }
summary::after {
  content: '+';
  font-size: 20px;
  line-height: 1;
  color: var(--muted);
  flex-shrink: 0;
  transition: transform .2s;
}
details[open] summary::after { content: '–'; }

.details-body {
  margin-top: 12px;
  color: var(--muted);
  line-height: 1.65;
  font-size: var(--fs-sm);
}

/* 16. FORMS (shared)
   ---------------------------------------------------------- */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 5px;
}
.form-group label {
  font-size: var(--fs-sm);
  font-weight: 600;
  color: var(--muted);
}

input:not([type="checkbox"]):not([type="radio"]):not([type="submit"]),
textarea,
select {
  width: 100%;
  padding: 11px 14px;
  border-radius: 10px;
  border: 1px solid rgba(255,255,255,.12);
  background: rgba(255,255,255,.06);
  color: var(--text);
  font-size: var(--fs-base);
  font-family: inherit;
  outline: none;
  transition: border-color .15s, box-shadow .15s;
  -webkit-appearance: none;
}
input:not([type="checkbox"]):not([type="radio"]):not([type="submit"]):focus,
textarea:focus,
select:focus {
  border-color: rgba(77,163,255,.5);
  box-shadow: 0 0 0 3px rgba(77,163,255,.14);
}
input::placeholder, textarea::placeholder { color: var(--muted); opacity: .7; }
textarea { min-height: 110px; resize: vertical; }
select { cursor: pointer; }
select option { background: #0f1a2d; color: var(--text); }

.checkbox-field {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  font-size: var(--fs-sm);
  color: var(--muted);
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.09);
  padding: 14px;
  border-radius: 12px;
  line-height: 1.55;
  cursor: pointer;
}
.checkbox-field input[type="checkbox"] {
  width: 16px;
  height: 16px;
  margin-top: 1px;
  accent-color: var(--accent);
  flex-shrink: 0;
  cursor: pointer;
}

/* 17. SCROLL REVEAL ANIMATIONS
   ---------------------------------------------------------- */
.reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity .6s var(--ease-out), transform .6s var(--ease-out);
}
.reveal.visible {
  opacity: 1;
  transform: none;
}
.reveal--left  { transform: translateX(-20px); }
.reveal--right { transform: translateX(20px); }
.reveal--scale { transform: scale(.97) translateY(10px); }

.stagger-1 { transition-delay: .06s; }
.stagger-2 { transition-delay: .13s; }
.stagger-3 { transition-delay: .20s; }
.stagger-4 { transition-delay: .27s; }

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
}

/* 18. COMING SOON BADGE
   ---------------------------------------------------------- */
.coming-soon-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--accent);
  background: rgba(77,163,255,.10);
  border: 1px solid rgba(77,163,255,.25);
  padding: 4px 11px;
  border-radius: 999px;
  margin-bottom: 14px;
}

/* 19. FOOTER
   ---------------------------------------------------------- */
footer {
  border-top: 1px solid var(--line);
  padding: 36px 0 0;
  margin-top: 16px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 28px 20px;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--line);
}
.footer-col-title {
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 12px;
}
.footer-links {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.footer-links a {
  font-size: var(--fs-sm);
  color: var(--muted);
  transition: color .15s;
}
.footer-links a:hover { color: var(--text); }
.footer-brand-name {
  font-weight: 800;
  font-size: 15px;
  letter-spacing: -.2px;
  margin: 0 0 6px;
}
.footer-tagline {
  font-size: var(--fs-sm);
  color: var(--muted);
  margin: 0 0 10px;
  line-height: 1.5;
}
.footer-bottom {
  padding: 16px 0;
  font-size: var(--fs-xs);
  color: var(--muted);
  display: flex;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
}

@media (max-width: 760px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 440px) {
  .footer-grid { grid-template-columns: 1fr; }
}

/* 20. MISC UTILITIES
   ---------------------------------------------------------- */
.fine-print {
  font-size: var(--fs-xs);
  color: var(--muted);
  line-height: 1.5;
}

.divider {
  height: 1px;
  background: var(--line);
  margin: 4px 0;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}