/* ============================================
   WaWave — Marketing Site
   Brand palette pulled from wawave-frontend
   ============================================ */

:root {
  --violet: #6C5CE7;
  --violet-deep: #4834D4;
  --violet-soft: #A29BFE;
  --violet-bg: #F0EDFF;
  --teal: #00CEC9;
  --teal-deep: #00B894;
  --emerald: #00B894;
  --gold: #FDCB6E;
  --coral: #E17055;
  --sky: #74B9FF;

  --charcoal: #2D3436;
  --gray: #636E72;
  --gray-2: #8a9296;
  --mist: #F8F9FD;
  --cloud: #DFE6E9;
  --line: #ECEEF3;
  --white: #FFFFFF;

  --shadow-sm: 0 1px 2px rgba(45, 52, 54, 0.04), 0 1px 3px rgba(45, 52, 54, 0.04);
  --shadow-md: 0 4px 14px rgba(108, 92, 231, 0.08);
  --shadow-lg: 0 20px 50px rgba(72, 52, 212, 0.18);

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-xl: 24px;

  --font-sans: 'Inter', system-ui, -apple-system, Segoe UI, sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-sans);
  background: var(--white);
  color: var(--charcoal);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img, svg { display: block; max-width: 100%; }

a { color: inherit; text-decoration: none; }

.container {
  width: 100%;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ============== BUTTONS ============== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 18px;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 14px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform .15s ease, box-shadow .2s ease, background .2s ease, color .2s ease, border-color .2s ease;
  white-space: nowrap;
}
.btn-lg { padding: 14px 24px; font-size: 15px; }
.btn-block { width: 100%; }

.btn-primary {
  background: linear-gradient(180deg, var(--violet) 0%, var(--violet-deep) 100%);
  color: #fff;
  box-shadow: 0 6px 18px rgba(108, 92, 231, 0.32);
}
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 10px 24px rgba(108, 92, 231, 0.38); }

.btn-outline {
  background: var(--white);
  color: var(--charcoal);
  border-color: var(--line);
}
.btn-outline:hover { border-color: var(--violet); color: var(--violet); }

.btn-ghost {
  background: transparent;
  color: var(--charcoal);
}
.btn-ghost:hover { color: var(--violet); }

/* ============== NAV ============== */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--line);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  letter-spacing: -0.01em;
}
.brand-mark {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--violet), var(--violet-deep));
  color: #fff;
  display: grid;
  place-items: center;
}
.brand-mark svg { width: 18px; height: 18px; }
.brand-name { font-size: 18px; }

.nav-links {
  display: flex;
  gap: 28px;
}
.nav-links a {
  color: var(--gray);
  font-weight: 500;
  font-size: 14px;
  transition: color .2s ease;
}
.nav-links a:hover { color: var(--charcoal); }

.nav-cta { display: flex; gap: 10px; align-items: center; }

/* ============== HERO ============== */
.hero {
  position: relative;
  padding: 72px 0 80px;
  overflow: hidden;
  background:
    radial-gradient(1000px 480px at 85% -10%, rgba(108, 92, 231, 0.10), transparent 60%),
    radial-gradient(800px 400px at -10% 30%, rgba(0, 206, 201, 0.10), transparent 60%),
    var(--white);
}
.hero-inner {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 64px;
  align-items: center;
}
.pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  border-radius: 999px;
  background: var(--violet-bg);
  color: var(--violet-deep);
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 22px;
}
.pill-dot {
  width: 7px; height: 7px;
  border-radius: 999px;
  background: var(--violet);
  box-shadow: 0 0 0 4px rgba(108, 92, 231, 0.20);
}
.hero h1 {
  font-size: clamp(36px, 5vw, 60px);
  line-height: 1.05;
  letter-spacing: -0.025em;
  margin: 0 0 20px;
  font-weight: 800;
}
.grad {
  background: linear-gradient(90deg, var(--violet) 0%, var(--teal) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.lead {
  color: var(--gray);
  font-size: 18px;
  max-width: 560px;
  margin: 0 0 32px;
}
.hero-ctas { display: flex; gap: 12px; flex-wrap: wrap; }
.hero-meta {
  list-style: none;
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
  margin: 28px 0 0;
  padding: 0;
  color: var(--gray);
  font-size: 14px;
  font-weight: 500;
}

/* HERO VISUAL */
.hero-visual { position: relative; min-height: 480px; }
.phone {
  position: relative;
  width: 100%;
  max-width: 420px;
  margin: 0 auto;
  background: #fff;
  border-radius: 28px;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-lg);
  padding: 22px;
  z-index: 2;
}
.phone-top {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line);
}
.phone-avatar {
  width: 44px; height: 44px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--violet), var(--violet-deep));
  color: #fff;
  font-weight: 800;
  display: grid; place-items: center;
}
.phone-name { font-weight: 700; }
.phone-sub { font-size: 13px; color: var(--gray); }
.phone-body { padding-top: 16px; display: flex; flex-direction: column; gap: 10px; }
.bubble {
  padding: 10px 14px;
  border-radius: 14px;
  font-size: 14px;
  max-width: 85%;
  line-height: 1.45;
}
.bubble-in { background: var(--mist); color: var(--charcoal); border-top-left-radius: 4px; }
.bubble-out {
  align-self: flex-end;
  background: linear-gradient(135deg, var(--violet) 0%, var(--violet-deep) 100%);
  color: #fff;
  border-top-right-radius: 4px;
}
.progress {
  margin-top: 8px;
  height: 8px;
  background: var(--mist);
  border-radius: 999px;
  overflow: hidden;
}
.progress-bar {
  height: 100%;
  width: 50%;
  background: linear-gradient(90deg, var(--violet), var(--teal));
  border-radius: 999px;
  animation: grow 2.4s ease-in-out infinite alternate;
}
@keyframes grow {
  from { width: 30%; }
  to   { width: 78%; }
}
.phone-row { display: flex; gap: 8px; }
.chip {
  padding: 6px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
}
.chip-good { background: #E6FFF5; color: var(--teal-deep); }
.chip-warn { background: #FFF8E1; color: #B7870E; }

.float {
  position: absolute;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 12px 16px;
  box-shadow: var(--shadow-md);
  z-index: 3;
}
.float-num { font-weight: 800; font-size: 18px; color: var(--charcoal); }
.float-label { font-size: 12px; color: var(--gray); }
.float-1 { top: 30px; left: -10px; animation: floaty 5s ease-in-out infinite; }
.float-2 { bottom: 40px; right: -10px; animation: floaty 6s ease-in-out infinite reverse; }
@keyframes floaty {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-10px); }
}

/* ============== LOGOS ============== */
.logos {
  padding: 32px 0 8px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--white);
}
.logos-label {
  text-align: center;
  color: var(--gray-2);
  font-size: 13px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin: 0 0 20px;
  font-weight: 600;
}
.logos-row {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 24px;
  padding-bottom: 28px;
  color: var(--gray-2);
  font-weight: 700;
  font-size: 16px;
  letter-spacing: 0.02em;
}
.logos-row span { opacity: 0.75; }

/* ============== SECTIONS ============== */
.section { padding: 96px 0; }
.section-alt { background: var(--mist); }
.section-head {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 56px;
}
.eyebrow {
  display: inline-block;
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--violet);
  font-weight: 700;
  margin-bottom: 12px;
}
.section-head h2 {
  font-size: clamp(28px, 3.6vw, 42px);
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin: 0 0 14px;
  font-weight: 800;
}
.section-head p { color: var(--gray); margin: 0; font-size: 17px; }

/* ============== GRIDS ============== */
.grid { display: grid; gap: 20px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }

/* ============== FEATURE CARDS ============== */
.card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: rgba(108, 92, 231, 0.25);
}
.card h3 { margin: 16px 0 8px; font-size: 18px; font-weight: 700; letter-spacing: -0.01em; }
.card p { color: var(--gray); margin: 0; font-size: 15px; }
.card-icon {
  width: 44px; height: 44px;
  border-radius: 12px;
  display: grid; place-items: center;
}
.card-icon svg { width: 22px; height: 22px; }
.icon-violet  { background: var(--violet-bg); color: var(--violet-deep); }
.icon-teal    { background: #E0FBFA; color: var(--teal-deep); }
.icon-emerald { background: #E6FFF5; color: var(--emerald); }
.icon-coral   { background: #FFE9E4; color: var(--coral); }
.icon-sky     { background: #E8F4FD; color: #1E78D8; }
.icon-gold    { background: #FFF8E1; color: #B7870E; }

/* ============== STEPS ============== */
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  position: relative;
}
.step {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 28px;
}
.step-num {
  display: inline-block;
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: 14px;
  color: var(--violet);
  background: var(--violet-bg);
  padding: 4px 10px;
  border-radius: 999px;
  margin-bottom: 16px;
  letter-spacing: 0.04em;
}
.step h3 { margin: 0 0 8px; font-size: 19px; font-weight: 700; letter-spacing: -0.01em; }
.step p  { color: var(--gray); margin: 0; }

/* ============== PRICING ============== */
.pricing-grid { max-width: 1100px; margin: 0 auto; align-items: stretch; }
.pricing-grid .price { height: 100%; }
.price {
  position: relative;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  padding: 32px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.price-featured {
  border-color: transparent;
  background:
    linear-gradient(#fff, #fff) padding-box,
    linear-gradient(135deg, var(--violet), var(--teal)) border-box;
  border: 2px solid transparent;
  box-shadow: var(--shadow-md);
}
.price-badge {
  position: absolute;
  top: -12px; right: 24px;
  background: linear-gradient(135deg, var(--violet), var(--violet-deep));
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.04em;
  padding: 5px 12px;
  border-radius: 999px;
}
.price-head h3 { margin: 0; font-size: 20px; font-weight: 700; }
.price-head p  { margin: 4px 0 0; color: var(--gray); font-size: 14px; }
.price-amount {
  font-size: 48px;
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1;
  color: var(--charcoal);
}
.price-amount .dollar { font-size: 24px; vertical-align: top; margin-right: 4px; color: var(--gray); font-weight: 700; }
.price-amount .per    { font-size: 16px; color: var(--gray); font-weight: 600; margin-left: 4px; }
.price-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
  color: var(--charcoal);
  font-size: 15px;
}

/* ============== PRICING WARNING ============== */
.pricing-warning {
  max-width: 980px;
  margin: 32px auto 0;
  padding: 16px 20px;
  background: #FFF8E1;
  border: 1px solid #F2D27A;
  border-left: 4px solid #B7870E;
  border-radius: var(--radius-md);
  color: #5C4A14;
  font-size: 14px;
  line-height: 1.6;
  display: flex;
  gap: 14px;
  align-items: flex-start;
}
.pricing-warning-icon { font-size: 18px; line-height: 1.4; flex-shrink: 0; }
.pricing-warning strong { color: #8a6510; }

/* ============== API TIER ============== */
.api-tier {
  max-width: 1100px;
  margin: 32px auto 0;
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 40px;
  align-items: center;
  padding: 36px 40px;
  border-radius: var(--radius-xl);
  background:
    radial-gradient(500px 200px at 100% 0%, rgba(0, 206, 201, 0.18), transparent 70%),
    linear-gradient(135deg, #2D2A6E 0%, #4834D4 100%);
  color: #fff;
  box-shadow: var(--shadow-lg);
}
.api-tier .eyebrow { color: var(--teal); }
.api-tier h3 {
  font-size: 28px;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin: 6px 0 12px;
}
.api-tier-info p {
  margin: 0 0 18px;
  color: rgba(255, 255, 255, 0.78);
  font-size: 16px;
  max-width: 520px;
}
.api-tier-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px 20px;
  color: rgba(255, 255, 255, 0.92);
  font-size: 15px;
}
.api-tier-cta {
  text-align: center;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--radius-lg);
  padding: 24px;
  backdrop-filter: blur(6px);
}
.api-tier-cta .price-amount { color: #fff; }
.api-tier-cta .price-amount .dollar,
.api-tier-cta .price-amount .per { color: rgba(255, 255, 255, 0.7); }
.api-tier-note {
  color: rgba(255, 255, 255, 0.7);
  font-size: 13px;
  margin: 8px 0 18px;
}
.api-tier .btn-primary {
  background: #fff;
  color: var(--violet-deep);
  box-shadow: 0 10px 26px rgba(0, 0, 0, 0.18);
}
.api-tier .btn-primary:hover { color: var(--violet); }

/* ============== FAQ ============== */
.faq { max-width: 760px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
.faq details {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 18px 22px;
  transition: border-color .2s ease, box-shadow .2s ease;
}
.faq details[open] { border-color: var(--violet-soft); box-shadow: var(--shadow-md); }
.faq summary {
  cursor: pointer;
  font-weight: 600;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: '+';
  font-weight: 400;
  font-size: 22px;
  color: var(--violet);
  transition: transform .2s ease;
}
.faq details[open] summary::after { content: '−'; }
.faq p { color: var(--gray); margin: 12px 0 0; }

/* ============== CTA ============== */
.cta {
  padding: 96px 0;
  background:
    radial-gradient(600px 240px at 50% 0%, rgba(0, 206, 201, 0.15), transparent 70%),
    linear-gradient(135deg, #4834D4 0%, #6C5CE7 100%);
  color: #fff;
  text-align: center;
}
.cta-inner h2 {
  font-size: clamp(28px, 3.6vw, 40px);
  margin: 0 0 12px;
  letter-spacing: -0.02em;
  font-weight: 800;
}
.cta-inner p { opacity: 0.85; margin: 0 0 28px; font-size: 17px; }
.cta .btn-primary {
  background: #fff;
  color: var(--violet-deep);
  box-shadow: 0 10px 26px rgba(0, 0, 0, 0.16);
}
.cta .btn-primary:hover { color: var(--violet); }

/* ============== FOOTER ============== */
.footer {
  background: #fff;
  border-top: 1px solid var(--line);
  padding: 56px 0 24px;
}
.footer-inner {
  display: grid;
  grid-template-columns: 1.2fr 2fr;
  gap: 48px;
}
.footer-brand p { color: var(--gray); margin: 14px 0 0; max-width: 320px; }
.footer-cols { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.footer-cols h4 { margin: 0 0 12px; font-size: 14px; font-weight: 700; }
.footer-cols a {
  display: block;
  color: var(--gray);
  font-size: 14px;
  padding: 4px 0;
  transition: color .2s ease;
}
.footer-cols a:hover { color: var(--violet); }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  border-top: 1px solid var(--line);
  margin-top: 40px;
  padding-top: 20px;
  color: var(--gray-2);
  font-size: 13px;
}

/* ============== TOAST ============== */
.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 100;
  max-width: 380px;
  background: #fff;
  border: 1px solid var(--line);
  border-left: 4px solid var(--coral);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  padding: 14px 16px;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 14px;
  line-height: 1.5;
  color: var(--charcoal);
  opacity: 0;
  transform: translateY(16px);
  pointer-events: none;
  transition: opacity .25s ease, transform .25s ease;
}
.toast.toast-visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}
.toast-icon { font-size: 18px; line-height: 1.4; flex-shrink: 0; }
.toast-body { display: flex; flex-direction: column; gap: 2px; }
.toast-body strong { font-weight: 700; color: var(--charcoal); }
.toast-body span { color: var(--gray); font-size: 13px; }
.toast-close {
  background: transparent;
  border: 0;
  color: var(--gray-2);
  font-size: 22px;
  line-height: 1;
  cursor: pointer;
  padding: 0 4px;
  margin-left: auto;
  transition: color .2s ease;
}
.toast-close:hover { color: var(--charcoal); }

@media (max-width: 600px) {
  .toast { left: 16px; right: 16px; bottom: 16px; max-width: none; }
}

/* ============== RESPONSIVE ============== */
@media (max-width: 960px) {
  .nav-links { display: none; }
  .hero { padding: 56px 0 64px; }
  .hero-inner { grid-template-columns: 1fr; gap: 48px; }
  .hero-visual { min-height: 420px; }
  .grid-3, .steps { grid-template-columns: 1fr 1fr; }
  .grid-2 { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; }
  .api-tier { grid-template-columns: 1fr; padding: 28px; gap: 24px; }
  .api-tier-list { grid-template-columns: 1fr; }
}
@media (max-width: 600px) {
  .container { padding: 0 18px; }
  .nav-cta .btn-ghost { display: none; }
  .grid-3, .steps { grid-template-columns: 1fr; }
  .section { padding: 72px 0; }
  .cta { padding: 72px 0; }
  .footer-cols { grid-template-columns: 1fr 1fr; }
  .float-1, .float-2 { display: none; }
  .logos-row { justify-content: center; gap: 18px; font-size: 14px; }
  .footer-bottom { flex-direction: column; gap: 6px; }
}