/* ============================================================
   WXUnlimited — Landing Page Styles
   Dark, atmospheric weather-intelligence aesthetic
   ============================================================ */

:root {
  --bg-0: #05090f;
  --bg-1: #0a111c;
  --bg-2: #0e1828;
  --card: rgba(15, 26, 42, 0.72);
  --card-border: rgba(97, 165, 250, 0.14);
  --text-1: #eaf2fb;
  --text-2: #9db2c9;
  --text-3: #647b94;
  --accent: #38bdf8;
  --accent-2: #22d3ee;
  --accent-3: #818cf8;
  --glow: rgba(56, 189, 248, 0.22);
  --radius: 16px;
  --radius-sm: 10px;
  --font-display: "Space Grotesk", "Inter", system-ui, sans-serif;
  --font-body: "Inter", system-ui, -apple-system, sans-serif;
  --shadow-card: 0 10px 34px rgba(2, 8, 20, 0.55);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  background: var(--bg-0);
  color: var(--text-1);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* ---------- Layout helpers ---------- */

.container {
  width: min(1140px, 100% - 3rem);
  margin-inline: auto;
}

.container.narrow {
  width: min(760px, 100% - 3rem);
}

.center {
  text-align: center;
}

.section {
  padding: clamp(4.5rem, 9vw, 7.5rem) 0;
  position: relative;
}

.section-alt {
  background:
    radial-gradient(60rem 30rem at 85% -10%, rgba(129, 140, 248, 0.07), transparent 60%),
    radial-gradient(50rem 26rem at 10% 110%, rgba(34, 211, 238, 0.06), transparent 60%),
    var(--bg-1);
  border-block: 1px solid rgba(97, 165, 250, 0.08);
}

.section-head {
  max-width: 780px;
  margin: 0 auto 3rem;
}

.section-lead {
  color: var(--text-2);
  font-size: 1.06rem;
  max-width: 720px;
  margin: 0.9rem auto 0;
}

.section-note {
  display: none;
  color: var(--text-3);
  font-size: 0.98rem;
  max-width: 720px;
  margin: 2.5rem auto 0;
  text-align: center;
  font-style: italic;
}

/* ---------- Typography ---------- */

h1, h2, h3 {
  font-family: var(--font-display);
  line-height: 1.12;
  letter-spacing: -0.015em;
}

h1 {
  font-size: clamp(2.5rem, 6vw, 4.3rem);
  font-weight: 700;
}

h2 {
  font-size: clamp(1.8rem, 4vw, 2.7rem);
  font-weight: 600;
}

h3 {
  font-size: 1.06rem;
  font-weight: 600;
}

.text-gradient {
  background: linear-gradient(92deg, var(--accent) 0%, var(--accent-2) 45%, var(--accent-3) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent-2);
  margin-bottom: 1.1rem;
}

/* ---------- Buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.8rem 1.6rem;
  border-radius: 999px;
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.18s ease, border-color 0.18s ease;
}

.btn:active {
  transform: translateY(1px);
}

.btn-primary {
  background: linear-gradient(92deg, #0ea5e9, #22d3ee);
  color: #04121e;
  box-shadow: 0 6px 24px rgba(34, 211, 238, 0.28);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 32px rgba(34, 211, 238, 0.4);
}

.btn-ghost {
  background: rgba(97, 165, 250, 0.08);
  border-color: rgba(97, 165, 250, 0.28);
  color: var(--text-1);
}

.btn-ghost:hover {
  background: rgba(97, 165, 250, 0.16);
  border-color: rgba(97, 165, 250, 0.45);
  transform: translateY(-2px);
}

.btn-lg {
  padding: 1rem 2rem;
  font-size: 1.02rem;
}

.btn-sm {
  padding: 0.55rem 1.15rem;
  font-size: 0.86rem;
}

.btn-block {
  width: 100%;
  justify-content: center;
}

/* ---------- Header / Nav ---------- */

.nav-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
  color: var(--text-1);
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: linear-gradient(135deg, #0ea5e9, #6366f1);
  color: #fff;
  font-size: 0.95rem;
  box-shadow: 0 4px 16px rgba(56, 189, 248, 0.35);
}

.brand-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.12rem;
  letter-spacing: -0.01em;
}

.brand-name em {
  font-style: normal;
  background: linear-gradient(92deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* ---------- Hero ---------- */

.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
  padding: 5rem 0 4rem;
  background:
    radial-gradient(70rem 34rem at 50% -20%, rgba(56, 189, 248, 0.12), transparent 62%),
    radial-gradient(46rem 30rem at 88% 108%, rgba(129, 140, 248, 0.1), transparent 60%),
    var(--bg-0);
}

#wind-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0.75;
  pointer-events: none;
}

.hero-glow {
  position: absolute;
  inset: auto 0 0 0;
  height: 8%;
  background: linear-gradient(to top, var(--bg-0), transparent);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 860px;
}

.hero-lead {
  color: var(--text-2);
  font-size: clamp(1.02rem, 1.6vw, 1.18rem);
  max-width: 660px;
  margin: 1.4rem auto 0;
}

.hero-sub {
  color: var(--text-3);
  font-size: 0.98rem;
  max-width: 560px;
  margin: 0.9rem auto 0;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.9rem;
  margin-top: 2.2rem;
}

.scroll-hint {
  position: absolute;
  bottom: 1.6rem;
  left: 50%;
  transform: translateX(-50%);
  color: var(--text-3);
  font-size: 1rem;
  z-index: 2;
  animation: hint-bounce 2.2s ease-in-out infinite;
}

@keyframes hint-bounce {
  0%, 100% { transform: translate(-50%, 0); opacity: 0.55; }
  50% { transform: translate(-50%, 7px); opacity: 1; }
}

/* ---------- Model cards ---------- */

.model-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.1rem;
}

.model-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.9rem;
  text-align: center;
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 1.6rem 1.2rem;
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.model-card:hover {
  transform: translateY(-4px);
  border-color: rgba(56, 189, 248, 0.4);
}

.model-flags {
  display: inline-grid;
  place-items: center;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  background: rgba(56, 189, 248, 0.08);
  border: 1.5px solid rgba(56, 189, 248, 0.55);
  transition: background 0.2s ease, border-color 0.2s ease;
}

.model-card:hover .model-flags {
  background: rgba(56, 189, 248, 0.14);
  border-color: rgba(56, 189, 248, 0.85);
}

.model-flag {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  object-fit: cover;
  /* duotone: shadows -> deep navy, highlights -> #38bdf8 (same blue as section eyebrows) */
  filter: grayscale(1) brightness(0.94) contrast(1.08);
  mix-blend-mode: luminosity;
  background: #38bdf8;
}

.model-flag-ai {
  display: grid;
  place-items: center;
  font-size: 1.05rem;
  color: #38bdf8;
  background: rgba(56, 189, 248, 0.12);
}

.model-card h3 {
  font-size: 0.98rem;
}

/* ---------- Feature cards ---------- */

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.1rem;
}

.feature-card {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 1.5rem 1.4rem;
  box-shadow: var(--shadow-card);
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.feature-card:hover {
  transform: translateY(-4px);
  border-color: rgba(56, 189, 248, 0.4);
  box-shadow: 0 14px 40px rgba(2, 8, 20, 0.65), 0 0 0 1px rgba(56, 189, 248, 0.12);
}

.feature-icon {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(14, 165, 233, 0.2), rgba(99, 102, 241, 0.2));
  border: 1px solid rgba(56, 189, 248, 0.28);
  color: var(--accent);
  font-size: 1.05rem;
  margin-bottom: 1rem;
}

.feature-card p {
  color: var(--text-2);
  font-size: 0.92rem;
  margin-top: 0.4rem;
}

/* ---------- Value cards ---------- */

.value-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.1rem;
}

.value-card {
  display: flex;
  gap: 1.1rem;
  align-items: flex-start;
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 1.6rem 1.5rem;
  box-shadow: var(--shadow-card);
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.value-card:hover {
  transform: translateY(-4px);
  border-color: rgba(34, 211, 238, 0.4);
}

.value-icon {
  flex: none;
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  border-radius: 12px;
  background: linear-gradient(135deg, #0ea5e9, #6366f1);
  color: #fff;
  font-size: 1.1rem;
  box-shadow: 0 4px 18px rgba(56, 189, 248, 0.3);
}

.value-card p {
  color: var(--text-2);
  font-size: 0.94rem;
  margin-top: 0.3rem;
}

/* ---------- Final CTA ---------- */

.cta-section {
  overflow: hidden;
  background:
    radial-gradient(56rem 30rem at 50% 120%, rgba(34, 211, 238, 0.12), transparent 60%),
    var(--bg-1);
  border-top: 1px solid rgba(97, 165, 250, 0.08);
}

.cta-glow {
  position: absolute;
  left: 50%;
  bottom: -14rem;
  transform: translateX(-50%);
  width: 60rem;
  height: 26rem;
  background: radial-gradient(closest-side, var(--glow), transparent);
  filter: blur(10px);
  pointer-events: none;
}

.cta-domain {
  margin-top: 2.4rem;
  font-family: var(--font-display);
  font-size: 0.95rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--text-3);
}

/* ---------- Footer ---------- */

.site-footer {
  border-top: 1px solid rgba(97, 165, 250, 0.1);
  padding: 2.6rem 0;
  background: var(--bg-0);
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  text-align: center;
}

.footer-tag {
  color: var(--text-2);
  font-size: 0.92rem;
  margin-top: 0.4rem;
}

.footer-copy {
  color: var(--text-3);
  font-size: 0.82rem;
}

/* ---------- Modal ---------- */

.modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: grid;
  place-items: center;
  padding: 1.25rem;
  background: rgba(3, 7, 13, 0.72);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  opacity: 0;
  transition: opacity 0.22s ease;
}

.modal-backdrop.open {
  opacity: 1;
}

.modal-backdrop[hidden] {
  display: none;
}

.modal {
  position: relative;
  width: min(460px, 100%);
  background: linear-gradient(180deg, var(--bg-2), var(--bg-1));
  border: 1px solid rgba(97, 165, 250, 0.22);
  border-radius: var(--radius);
  padding: 2.1rem 1.9rem;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.6);
  transform: translateY(14px) scale(0.98);
  transition: transform 0.22s ease;
  max-height: calc(100svh - 2.5rem);
  overflow-y: auto;
}

.modal-backdrop.open .modal {
  transform: translateY(0) scale(1);
}

.modal-close {
  position: absolute;
  top: 0.9rem;
  right: 0.9rem;
  background: rgba(97, 165, 250, 0.1);
  border: 1px solid rgba(97, 165, 250, 0.2);
  color: var(--text-2);
  width: 34px;
  height: 34px;
  border-radius: 50%;
  cursor: pointer;
  font-size: 0.95rem;
  transition: color 0.15s ease, background 0.15s ease;
}

.modal-close:hover {
  color: var(--text-1);
  background: rgba(97, 165, 250, 0.22);
}

.modal-body h3 {
  font-size: 1.4rem;
  margin-bottom: 0.4rem;
}

.modal-lead {
  color: var(--text-2);
  font-size: 0.92rem;
  margin-bottom: 1.4rem;
}

.form-row {
  margin-bottom: 1rem;
}

.form-row label {
  display: block;
  font-size: 0.83rem;
  font-weight: 600;
  color: var(--text-2);
  margin-bottom: 0.35rem;
}

.form-row .optional {
  font-weight: 400;
  color: var(--text-3);
}

.form-row input,
.form-row select,
.form-row textarea {
  width: 100%;
  font-family: var(--font-body);
  font-size: 0.94rem;
  color: var(--text-1);
  background: rgba(5, 9, 15, 0.7);
  border: 1px solid rgba(97, 165, 250, 0.22);
  border-radius: var(--radius-sm);
  padding: 0.7rem 0.9rem;
  outline: none;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
  appearance: none;
}

.form-row select {
  background-image: linear-gradient(45deg, transparent 50%, var(--text-2) 50%),
    linear-gradient(135deg, var(--text-2) 50%, transparent 50%);
  background-position: calc(100% - 19px) 55%, calc(100% - 14px) 55%;
  background-size: 5px 5px;
  background-repeat: no-repeat;
}

.form-row textarea {
  resize: vertical;
}

.form-row input:focus,
.form-row select:focus,
.form-row textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.18);
}

.form-row input.invalid,
.form-row select.invalid {
  border-color: #f87171;
  box-shadow: 0 0 0 3px rgba(248, 113, 113, 0.15);
}

.form-error {
  color: #fca5a5;
  font-size: 0.85rem;
  margin-bottom: 0.9rem;
}

.modal-success {
  text-align: center;
  padding: 1.2rem 0 0.4rem;
}

.success-icon {
  display: inline-grid;
  place-items: center;
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: rgba(52, 211, 153, 0.12);
  border: 1px solid rgba(52, 211, 153, 0.4);
  color: #34d399;
  font-size: 1.7rem;
  margin-bottom: 1.1rem;
}

.modal-success h3 {
  margin-bottom: 0.5rem;
}

.modal-success .btn {
  margin-top: 0.6rem;
}

/* ---------- Scroll reveal ---------- */

.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .scroll-hint { animation: none; }
}

/* ---------- Responsive ---------- */

@media (max-width: 560px) {
  .hero-actions .btn {
    width: 100%;
    justify-content: center;
  }

  .feature-grid,
  .value-grid,
  .model-grid {
    grid-template-columns: 1fr;
  }

  .modal {
    padding: 1.7rem 1.3rem;
  }
}