/* LetAIWork — letaiwork.us */

:root {
  --bg: #0a0b10;
  --bg-alt: #10121b;
  --surface: #151824;
  --surface-2: #1c202f;
  --border: #262b3d;
  --text: #eef0f7;
  --text-dim: #9aa0b4;
  --text-faint: #676d84;
  --accent-1: #14b8a6;
  --accent-2: #22d3ee;
  --accent-3: #fbbf24;
  --gradient: linear-gradient(120deg, var(--accent-1), var(--accent-2));
  --radius: 14px;
  --max-width: 1120px;
  --shadow: 0 20px 60px rgba(0, 0, 0, 0.45);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(600px circle at 15% 0%, rgba(20, 184, 166, 0.16), transparent 55%),
    radial-gradient(500px circle at 85% 10%, rgba(34, 211, 238, 0.14), transparent 55%);
  pointer-events: none;
}

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

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

.wrap {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(10, 11, 16, 0.8);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: -0.01em;
}

.logo-mark {
  width: 30px;
  height: 30px;
  border-radius: 9px;
  background: var(--gradient);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  color: #0a0b10;
  font-weight: 800;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.main-nav a {
  color: var(--text-dim);
  font-size: 0.95rem;
  font-weight: 500;
  transition: color 0.15s ease;
}

.main-nav a:hover,
.main-nav a[aria-current="page"] {
  color: var(--text);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 14px;
}

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border);
  border-radius: 8px;
  width: 40px;
  height: 40px;
  color: var(--text);
  font-size: 1.1rem;
  cursor: pointer;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 22px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease, border-color 0.15s ease;
  white-space: nowrap;
}

.btn-primary {
  background: var(--gradient);
  color: #0a0b10;
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 10px 30px rgba(20, 184, 166, 0.35);
}

.btn-ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--border);
}

.btn-ghost:hover {
  border-color: var(--accent-2);
  color: var(--accent-2);
}

.btn-block {
  width: 100%;
}

.btn-lg {
  padding: 15px 30px;
  font-size: 1.02rem;
}

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

.hero {
  padding: 96px 0 80px;
  text-align: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text-dim);
  font-size: 0.82rem;
  font-weight: 600;
  margin-bottom: 24px;
}

.eyebrow .dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent-2);
  box-shadow: 0 0 8px var(--accent-2);
}

h1 {
  font-size: clamp(2.3rem, 5vw, 3.6rem);
  line-height: 1.08;
  letter-spacing: -0.02em;
  margin: 0 0 22px;
  font-weight: 700;
}

h1 .grad {
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.lede {
  max-width: 640px;
  margin: 0 auto 36px;
  font-size: 1.15rem;
  color: var(--text-dim);
}

.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}

.hero-note {
  color: var(--text-faint);
  font-size: 0.85rem;
}

/* Hero visual mock: a simple automated workflow strip */

.hero-visual {
  margin: 64px auto 0;
  max-width: 760px;
  border-radius: 20px;
  border: 1px solid var(--border);
  background: linear-gradient(180deg, var(--surface), var(--bg-alt));
  box-shadow: var(--shadow);
  overflow: hidden;
  text-align: left;
}

.hero-visual .window-toolbar {
  display: flex;
  gap: 6px;
  padding: 14px 18px;
  border-bottom: 1px solid var(--border);
}

.hero-visual .window-toolbar span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--surface-2);
}

.flow-body {
  padding: 36px 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
}

.flow-step {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px 18px;
  font-size: 0.88rem;
  max-width: 190px;
  text-align: center;
}

.flow-step .flow-label {
  display: block;
  color: var(--text-faint);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 6px;
}

.flow-step.active {
  border-color: var(--accent-1);
  background: linear-gradient(180deg, rgba(20, 184, 166, 0.14), var(--surface-2));
}

.flow-arrow {
  color: var(--text-faint);
  font-size: 1.3rem;
  flex-shrink: 0;
}

/* ---------- Sections ---------- */

section {
  padding: 88px 0;
}

.section-head {
  max-width: 620px;
  margin: 0 auto 56px;
  text-align: center;
}

.section-head h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.4rem);
  letter-spacing: -0.015em;
  margin: 0 0 14px;
}

.section-head p {
  color: var(--text-dim);
  font-size: 1.05rem;
  margin: 0;
}

.tag {
  display: inline-block;
  color: var(--accent-2);
  font-weight: 700;
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 14px;
}

/* ---------- Feature grid ---------- */

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

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: border-color 0.15s ease, transform 0.15s ease;
}

.card:hover {
  border-color: #38405c;
  transform: translateY(-2px);
}

.card-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  background: var(--surface-2);
  border: 1px solid var(--border);
  margin-bottom: 18px;
}

.card h3 {
  font-size: 1.08rem;
  margin: 0 0 10px;
}

.card p {
  color: var(--text-dim);
  font-size: 0.94rem;
  margin: 0;
}

/* ---------- Steps ---------- */

.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.step {
  position: relative;
  padding-top: 8px;
}

.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--gradient);
  color: #0a0b10;
  font-weight: 800;
  margin-bottom: 18px;
  font-size: 0.95rem;
}

.step h3 {
  font-size: 1.02rem;
  margin: 0 0 8px;
}

.step p {
  color: var(--text-dim);
  font-size: 0.92rem;
  margin: 0;
}

/* ---------- Contact ---------- */

.contact-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: start;
}

.contact-form {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.field label {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-dim);
}

.field input,
.field textarea,
.field select {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 14px;
  color: var(--text);
  font-size: 0.95rem;
  font-family: inherit;
  resize: vertical;
}

.field input:focus,
.field textarea:focus,
.field select:focus {
  outline: none;
  border-color: var(--accent-2);
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.contact-info .card h3 {
  margin: 0 0 6px;
}

.contact-info .card p {
  margin: 0;
}

.contact-info a {
  color: var(--accent-2);
}

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

.site-footer {
  border-top: 1px solid var(--border);
  padding: 64px 0 32px;
  margin-top: 40px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr repeat(3, 1fr);
  gap: 32px;
  margin-bottom: 48px;
}

.footer-brand p {
  color: var(--text-dim);
  font-size: 0.9rem;
  max-width: 280px;
  margin-top: 14px;
}

.footer-col h4 {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-faint);
  margin: 0 0 16px;
}

.footer-col ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-col a {
  color: var(--text-dim);
  font-size: 0.92rem;
  transition: color 0.15s ease;
}

.footer-col a:hover {
  color: var(--text);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 28px;
  border-top: 1px solid var(--border);
  color: var(--text-faint);
  font-size: 0.85rem;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-socials {
  display: flex;
  gap: 16px;
}

/* ---------- 404 ---------- */

.error-page {
  padding: 140px 0;
  text-align: center;
}

.error-page .code {
  font-size: 6rem;
  font-weight: 800;
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  line-height: 1;
  margin-bottom: 16px;
}

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

@media (max-width: 900px) {
  .main-nav,
  .nav-actions .btn-ghost {
    display: none;
  }

  .nav-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  .grid,
  .steps,
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .contact-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 560px) {
  .grid,
  .steps,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    padding: 64px 0 56px;
  }

  section {
    padding: 64px 0;
  }

  .flow-arrow {
    transform: rotate(90deg);
  }
}

/* ---------- Mobile nav drawer ---------- */

.mobile-nav {
  display: none;
  position: fixed;
  top: 72px;
  left: 0;
  right: 0;
  height: calc(100vh - 72px);
  background: var(--bg);
  z-index: 40;
  padding: 24px;
  border-top: 1px solid var(--border);
  overflow-y: auto;
}

.mobile-nav.open {
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.mobile-nav a {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text);
}

.mobile-nav .btn {
  margin-top: 12px;
}