/* ── Design Tokens ─────────────────────────────────────────────────────────── */
:root {
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.8rem + 0.35vw, 1rem);
  --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --text-lg: clamp(1.125rem, 1rem + 0.75vw, 1.5rem);
  --text-xl: clamp(1.5rem, 1.2rem + 1.25vw, 2.25rem);
  --text-2xl: clamp(2rem, 1.2rem + 2.5vw, 3.5rem);
  --text-3xl: clamp(2.5rem, 1rem + 4vw, 5rem);

  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;

  --radius-sm: 0.375rem;
  --radius-md: 0.625rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;
  --radius-full: 9999px;

  --transition: 180ms cubic-bezier(0.16, 1, 0.3, 1);

  --content-default: 1100px;
  --font-display: 'Cabinet Grotesk', 'Helvetica Neue', sans-serif;
  --font-body: 'Satoshi', 'Inter', sans-serif;
}

/* ── Light Mode ─────────────────────────────────────────────────────────────── */
:root, [data-theme='light'] {
  --color-bg: #f8f7f4;
  --color-surface: #ffffff;
  --color-surface-2: #f2f0ed;
  --color-border: #e2e0db;
  --color-text: #1a1917;
  --color-text-muted: #6b6a67;
  --color-text-faint: #b0afa9;
  --color-primary: #5b4cf5;
  --color-primary-hover: #4639d4;
  --color-primary-light: #ede9ff;
  --color-accent: #00c4a7;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.08);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.12);
}

/* ── Dark Mode ──────────────────────────────────────────────────────────────── */
[data-theme='dark'] {
  --color-bg: #0f0e0d;
  --color-surface: #181716;
  --color-surface-2: #211f1e;
  --color-border: #2e2c2a;
  --color-text: #edebe8;
  --color-text-muted: #7a7875;
  --color-text-faint: #4a4846;
  --color-primary: #7c6dff;
  --color-primary-hover: #9587ff;
  --color-primary-light: #1e1a3a;
  --color-accent: #00d9b8;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.3);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.4);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.5);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --color-bg: #0f0e0d;
    --color-surface: #181716;
    --color-surface-2: #211f1e;
    --color-border: #2e2c2a;
    --color-text: #edebe8;
    --color-text-muted: #7a7875;
    --color-text-faint: #4a4846;
    --color-primary: #7c6dff;
    --color-primary-hover: #9587ff;
    --color-primary-light: #1e1a3a;
    --color-accent: #00d9b8;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.3);
    --shadow-md: 0 4px 16px rgba(0,0,0,0.4);
    --shadow-lg: 0 12px 40px rgba(0,0,0,0.5);
  }
}

/* ── Base ───────────────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  -webkit-font-smoothing: antialiased;
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.65;
  min-height: 100dvh;
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { cursor: pointer; background: none; border: none; font: inherit; color: inherit; }
h1, h2, h3, h4 { font-family: var(--font-display); line-height: 1.1; text-wrap: balance; }
p { text-wrap: pretty; }

.container {
  max-width: var(--content-default);
  margin-inline: auto;
  padding-inline: var(--space-6);
}

/* ── Buttons ────────────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0.6rem 1.25rem;
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: 600;
  font-family: var(--font-body);
  transition: all var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background: var(--color-primary);
  color: #fff;
}
.btn-primary:hover { background: var(--color-primary-hover); transform: translateY(-1px); box-shadow: var(--shadow-md); }

.btn-ghost {
  color: var(--color-text-muted);
}
.btn-ghost:hover { color: var(--color-text); }

.btn-outline {
  border: 1.5px solid var(--color-border);
  color: var(--color-text);
}
.btn-outline:hover { border-color: var(--color-primary); color: var(--color-primary); }

.btn-lg { padding: 0.8rem 1.75rem; font-size: var(--text-base); }
.btn-block { width: 100%; justify-content: center; }

/* ── Nav ────────────────────────────────────────────────────────────────────── */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: color-mix(in srgb, var(--color-bg) 85%, transparent);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-border);
  transition: box-shadow var(--transition);
}

.nav-inner {
  max-width: var(--content-default);
  margin-inline: auto;
  padding: var(--space-4) var(--space-6);
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: var(--text-lg);
  color: var(--color-text);
  text-decoration: none;
}

.nav-links {
  display: flex;
  gap: var(--space-6);
  margin-left: auto;
}

.nav-links a {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  font-weight: 500;
  transition: color var(--transition);
}
.nav-links a:hover { color: var(--color-text); }

.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.theme-toggle {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
  transition: all var(--transition);
}
.theme-toggle:hover { color: var(--color-text); border-color: var(--color-text-muted); }

/* ── Hero ───────────────────────────────────────────────────────────────────── */
.hero {
  padding: clamp(var(--space-16), 10vw, var(--space-24)) var(--space-6);
  max-width: var(--content-default);
  margin-inline: auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: center;
  min-height: 88vh;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  background: var(--color-primary-light);
  color: var(--color-primary);
  font-size: var(--text-xs);
  font-weight: 600;
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-full);
  margin-bottom: var(--space-6);
}

.badge-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--color-accent);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(1.3); }
}

.hero-heading {
  font-size: var(--text-3xl);
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1.05;
  margin-bottom: var(--space-6);
}

.gradient-text {
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-sub {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  max-width: 52ch;
  margin-bottom: var(--space-8);
  line-height: 1.6;
}

.hero-cta {
  display: flex;
  gap: var(--space-3);
  align-items: center;
  flex-wrap: wrap;
  margin-bottom: var(--space-8);
}

.hero-social-proof {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

.proof-avatars {
  display: flex;
}

.avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--color-primary);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: 700;
  border: 2px solid var(--color-bg);
  margin-left: -6px;
}
.avatar:first-child { margin-left: 0; }

/* ── Phone Mockup ───────────────────────────────────────────────────────────── */
.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.phone-mockup {
  width: 300px;
  background: var(--color-surface);
  border-radius: 2rem;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-lg), 0 0 80px color-mix(in srgb, var(--color-primary) 15%, transparent);
  overflow: hidden;
  padding: var(--space-4);
}

.phone-screen {
  background: var(--color-surface-2);
  border-radius: 1.5rem;
  padding: var(--space-5);
}

.call-ui {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.call-incoming {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  background: var(--color-primary-light);
  border-radius: var(--radius-lg);
  padding: var(--space-3);
}

.call-icon { font-size: 1.25rem; }

.call-label {
  font-size: var(--text-xs);
  color: var(--color-primary);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.call-number {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text);
}

.call-transcript {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.msg {
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-md);
  font-size: var(--text-xs);
  max-width: 85%;
  line-height: 1.5;
}

.msg-ai {
  background: var(--color-primary);
  color: white;
  align-self: flex-start;
  border-bottom-left-radius: 3px;
}

.msg-user {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  color: var(--color-text);
  align-self: flex-end;
  border-bottom-right-radius: 3px;
}

.typing-dots {
  display: inline-flex;
  gap: 3px;
  align-items: center;
  padding: 2px 0;
}
.typing-dots span {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: rgba(255,255,255,0.7);
  animation: typingBounce 1.2s infinite ease-in-out;
}
.typing-dots span:nth-child(2) { animation-delay: 0.2s; }
.typing-dots span:nth-child(3) { animation-delay: 0.4s; }

@keyframes typingBounce {
  0%, 60%, 100% { transform: translateY(0); }
  30% { transform: translateY(-4px); }
}

.call-status {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  color: var(--color-accent);
  font-weight: 600;
}

.status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-accent);
  animation: pulse 1.5s infinite;
}

/* ── Stats ──────────────────────────────────────────────────────────────────── */
.stats {
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-10) var(--space-6);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
}

.stat { text-align: center; }

.stat-number {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 900;
  color: var(--color-primary);
  line-height: 1;
  margin-bottom: var(--space-1);
}

.stat-label {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ── Sections ───────────────────────────────────────────────────────────────── */
.section {
  padding: clamp(var(--space-16), 8vw, var(--space-24)) var(--space-6);
}

.section-dark {
  background: var(--color-surface);
}

.section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto var(--space-16);
}

.section-tag {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-primary);
  margin-bottom: var(--space-4);
}

.section-header h2 {
  font-size: var(--text-2xl);
  font-weight: 900;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-4);
}

.section-header p {
  color: var(--color-text-muted);
  font-size: var(--text-base);
  line-height: 1.7;
}

/* ── Steps ──────────────────────────────────────────────────────────────────── */
.steps {
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
  max-width: 900px;
  margin: 0 auto;
}

.step {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.step-num {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 900;
  color: var(--color-primary);
  opacity: 0.4;
  line-height: 1;
}

.step-body h3 {
  font-size: var(--text-lg);
  font-weight: 700;
  margin-bottom: var(--space-2);
}

.step-body p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.7;
}

.step-arrow {
  font-size: var(--text-xl);
  color: var(--color-primary);
  opacity: 0.3;
  padding-top: var(--space-2);
  flex-shrink: 0;
}

/* ── Features Grid ──────────────────────────────────────────────────────────── */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
}

.feature-card {
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  transition: all var(--transition);
}

.feature-card:hover {
  border-color: var(--color-primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.feature-card-accent {
  background: var(--color-primary-light);
  border-color: var(--color-primary);
}

.feature-icon {
  font-size: 1.75rem;
  margin-bottom: var(--space-4);
}

.feature-card h3 {
  font-size: var(--text-base);
  font-weight: 700;
  margin-bottom: var(--space-2);
}

.feature-card p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* ── Testimonials ───────────────────────────────────────────────────────────── */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
}

.testimonial {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
}

.testimonial-accent {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: white;
}

.testimonial-accent .testimonial-author .author-biz {
  opacity: 0.7;
}

.stars {
  color: #f59e0b;
  font-size: var(--text-sm);
  margin-bottom: var(--space-4);
  letter-spacing: 2px;
}

.testimonial p {
  font-size: var(--text-sm);
  line-height: 1.7;
  margin-bottom: var(--space-6);
  font-style: italic;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.author-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--color-primary-light);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: var(--text-sm);
  flex-shrink: 0;
}

.testimonial-accent .author-avatar {
  background: rgba(255,255,255,0.2);
  color: white;
}

.author-name {
  font-weight: 700;
  font-size: var(--text-sm);
}

.author-biz {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

/* ── Pricing ────────────────────────────────────────────────────────────────── */
.pricing-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-6);
  max-width: 780px;
  margin: 0 auto var(--space-8);
}

.pricing-card {
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  position: relative;
}

.pricing-card-featured {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: white;
}

.pricing-card-featured .plan-desc,
.pricing-card-featured .plan-features li {
  color: rgba(255,255,255,0.75);
}

.plan-badge {
  display: inline-block;
  background: rgba(255,255,255,0.2);
  color: white;
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-full);
  margin-bottom: var(--space-4);
}

.plan-name {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 800;
  margin-bottom: var(--space-4);
}

.plan-price {
  display: flex;
  align-items: baseline;
  gap: var(--space-1);
  margin-bottom: var(--space-4);
}

.price-amount {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 900;
  line-height: 1;
}

.price-period {
  font-size: var(--text-sm);
  opacity: 0.6;
}

.plan-desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--space-6);
  line-height: 1.6;
}

.plan-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  margin-bottom: var(--space-8);
}

.plan-features li {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.pricing-card-featured .btn-primary {
  background: white;
  color: var(--color-primary);
}
.pricing-card-featured .btn-primary:hover {
  background: rgba(255,255,255,0.9);
}

.pricing-note {
  text-align: center;
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.pricing-note a {
  color: var(--color-primary);
  text-decoration: underline;
  text-underline-offset: 2px;
}

/* ── CTA Section ────────────────────────────────────────────────────────────── */
.cta-section {
  padding-block: clamp(var(--space-16), 8vw, var(--space-24));
}

.cta-box {
  background: linear-gradient(135deg, var(--color-primary), color-mix(in srgb, var(--color-primary) 60%, var(--color-accent)));
  border-radius: var(--radius-xl);
  padding: clamp(var(--space-12), 6vw, var(--space-20));
  text-align: center;
  color: white;
}

.cta-box h2 {
  font-size: var(--text-2xl);
  font-weight: 900;
  margin-bottom: var(--space-4);
}

.cta-box p {
  font-size: var(--text-lg);
  opacity: 0.8;
  margin-bottom: var(--space-8);
}

.cta-box .btn-primary {
  background: white;
  color: var(--color-primary);
}
.cta-box .btn-primary:hover {
  background: rgba(255,255,255,0.9);
  transform: translateY(-2px);
}

/* ── Footer ─────────────────────────────────────────────────────────────────── */
.footer {
  border-top: 1px solid var(--color-border);
  padding: var(--space-10) var(--space-6);
}

.footer-inner {
  display: flex;
  align-items: center;
  gap: var(--space-8);
  flex-wrap: wrap;
}

.footer-links {
  display: flex;
  gap: var(--space-6);
  flex-wrap: wrap;
}

.footer-links a {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  transition: color var(--transition);
}
.footer-links a:hover { color: var(--color-text); }

.footer-copy {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  margin-left: auto;
}

/* ── Responsive ─────────────────────────────────────────────────────────────── */
@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; min-height: auto; padding-top: var(--space-12); }
  .hero-visual { display: none; }
  .features-grid { grid-template-columns: 1fr 1fr; }
  .testimonials-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .steps { flex-direction: column; }
  .step-arrow { display: none; }
  .nav-links { display: none; }
  .pricing-grid { grid-template-columns: 1fr; }
  .footer-inner { flex-direction: column; align-items: flex-start; gap: var(--space-4); }
  .footer-copy { margin-left: 0; }
}

@media (max-width: 560px) {
  .features-grid { grid-template-columns: 1fr; }
  .hero-cta { flex-direction: column; align-items: flex-start; }
  .hero-heading { font-size: clamp(2.2rem, 10vw, 3.5rem); }
}