:root {
  --bg: #050816;
  --bg-alt: #070b1f;
  --card: #0b1026;
  --accent: #4f46e5;
  --accent-soft: rgba(79, 70, 229, 0.14);
  --accent-strong: #6366f1;
  --text-main: #f9fafb;
  --text-muted: #9ca3af;
  --border-subtle: rgba(148, 163, 184, 0.3);
  --danger: #f97373;
  --success: #22c55e;
  --info: #38bdf8;
  --pending: #fbbf24;
  --radius-lg: 18px;
  --radius-xl: 24px;
  --shadow-soft: 0 24px 60px rgba(15, 23, 42, 0.65);
}

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

html, body {
  margin: 0;
  padding: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Text",
    "Inter", sans-serif;
  background: radial-gradient(circle at top, #0f172a 0, #020617 55%, #000 100%);
  color: var(--text-main);
  -webkit-font-smoothing: antialiased;
}

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

.container {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* NAVBAR */
.navbar {
  position: sticky;
  top: 0;
  z-index: 50;
  background: linear-gradient(to bottom, rgba(15, 23, 42, 0.98), rgba(15, 23, 42, 0.94));
  border-bottom: 1px solid rgba(148, 163, 184, 0.16);
  backdrop-filter: blur(16px);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.85rem 0;
}

.logo {
  font-weight: 700;
  letter-spacing: 0.08em;
  font-size: 1.05rem;
  text-transform: uppercase;
}

.logo span {
  color: var(--accent-strong);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1rem;
  font-size: 0.9rem;
}

.nav-links a {
  padding: 0.4rem 0.7rem;
  border-radius: 999px;
  color: var(--text-muted);
  transition: all 0.18s ease-out;
}

.nav-links a:hover {
  color: var(--text-main);
  background: rgba(148, 163, 184, 0.08);
}

.nav-cta {
  border: 1px solid var(--accent);
  color: var(--accent-strong);
  background: rgba(79, 70, 229, 0.08);
}

.nav-cta:hover {
  background: rgba(79, 70, 229, 0.16);
}

/* HERO */
.hero {
  padding: 3.5rem 0 2.5rem;
}

.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  gap: 2.5rem;
  align-items: center;
}

.hero-text h1 {
  font-size: clamp(2.4rem, 3.1vw, 3rem);
  line-height: 1.05;
  margin: 0 0 1rem;
}

.hero-text p {
  margin: 0 0 1.2rem;
  color: var(--text-muted);
  font-size: 1rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-bottom: 0.8rem;
}

.hero-small {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* BUTTONS */
.btn-primary,
.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.7rem 1.2rem;
  border-radius: 999px;
  font-size: 0.95rem;
  font-weight: 500;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.1s ease-out, box-shadow 0.15s ease-out, background 0.15s ease-out;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  box-shadow: 0 18px 38px rgba(79, 70, 229, 0.45);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 24px 50px rgba(79, 70, 229, 0.6);
}

.btn-secondary {
  background: rgba(15, 23, 42, 0.7);
  border-color: rgba(148, 163, 184, 0.6);
  color: var(--text-main);
}

.btn-secondary:hover {
  background: rgba(15, 23, 42, 0.95);
}

/* HERO CARD */
.hero-card {
  background: radial-gradient(circle at top left, rgba(79,70,229,0.15), transparent 60%),
              radial-gradient(circle at bottom right, rgba(56,189,248,0.12), transparent 55%),
              var(--card);
  border-radius: var(--radius-xl);
  border: 1px solid rgba(148, 163, 184, 0.55);
  padding: 1.3rem 1.2rem;
  box-shadow: var(--shadow-soft);
}

.hero-card-header {
  font-size: 0.88rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--text-muted);
  margin-bottom: 0.8rem;
}

.habit-list {
  list-style: none;
  padding: 0;
  margin: 0 0 0.9rem;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.habit-list li {
  display: flex;
  justify-content: space-between;
  gap: 0.8rem;
  padding: 0.6rem 0.7rem;
  border-radius: 0.75rem;
  background: rgba(15, 23, 42, 0.7);
  border: 1px solid rgba(148, 163, 184, 0.4);
}

.habit-title {
  font-size: 0.92rem;
  margin: 0 0 0.1rem;
}

.habit-meta {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin: 0;
}

.habit-pill {
  align-self: center;
  padding: 0.22rem 0.6rem;
  border-radius: 999px;
  font-size: 0.7rem;
  font-weight: 500;
  border: 1px solid transparent;
}

.habit-pill.success {
  background: rgba(34,197,94,0.12);
  border-color: rgba(34,197,94,0.55);
  color: #bbf7d0;
}

.habit-pill.info {
  background: rgba(56,189,248,0.12);
  border-color: rgba(56,189,248,0.55);
  color: #bae6fd;
}

.habit-pill.pending {
  background: rgba(251,191,36,0.12);
  border-color: rgba(251,191,36,0.65);
  color: #fef3c7;
}

.hero-card-footer {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* SECTIONS */
.section {
  padding: 2.8rem 0;
}

.section.alt {
  background: radial-gradient(circle at top, #020617 0, #020617 55%, #000 100%);
}

.section h2 {
  font-size: 1.7rem;
  margin: 0 0 0.5rem;
}

.section-subtitle {
  margin: 0 0 1.8rem;
  color: var(--text-muted);
  max-width: 36rem;
}

/* GRID */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.2rem;
}

.card {
  background: rgba(15, 23, 42, 0.85);
  border-radius: var(--radius-lg);
  padding: 1.1rem 1.1rem 1.1rem;
  border: 1px solid rgba(148, 163, 184, 0.45);
}

.card h3 {
  margin: 0 0 0.4rem;
  font-size: 1rem;
}

.card p {
  margin: 0;
  font-size: 0.95rem;
  color: var(--text-muted);
}

/* STEPS */
.steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.1rem;
}

.step {
  background: rgba(15, 23, 42, 0.85);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(148, 163, 184, 0.43);
  padding: 1rem 1rem 1.1rem;
}

.step-number {
  width: 2rem;
  height: 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent-strong);
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 0.5rem;
}

.step h3 {
  margin: 0 0 0.35rem;
  font-size: 1rem;
}

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

/* FAQ */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
  margin-top: 1rem;
}

.faq-item {
  background: rgba(15, 23, 42, 0.9);
  border-radius: var(--radius-lg);
  padding: 0.95rem 1.05rem;
  border: 1px solid rgba(148, 163, 184, 0.4);
}

.faq-item h3 {
  margin: 0 0 0.2rem;
  font-size: 0.98rem;
}

.faq-item p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* CONTACT */
.contact-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
  gap: 1.8rem;
  align-items: flex-start;
}

.contact-form {
  background: rgba(15, 23, 42, 0.96);
  border-radius: var(--radius-xl);
  padding: 1.1rem 1.1rem 1.3rem;
  border: 1px solid rgba(148, 163, 184, 0.55);
  box-shadow: var(--shadow-soft);
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.contact-form label {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.contact-form input {
  border-radius: 999px;
  border: 1px solid rgba(148, 163, 184, 0.7);
  background: rgba(15, 23, 42, 0.9);
  padding: 0.6rem 0.9rem;
  color: var(--text-main);
  font-size: 0.92rem;
  outline: none;
}

.contact-form input:focus {
  border-color: var(--accent-strong);
  box-shadow: 0 0 0 1px rgba(99, 102, 241, 0.7);
}

.contact-form button {
  margin-top: 0.3rem;
  border: none;
}

.form-note {
  font-size: 0.78rem;
  color: var(--text-muted);
}

/* FOOTER */
.footer {
  border-top: 1px solid rgba(148, 163, 184, 0.28);
  padding: 1.4rem 0 1.6rem;
  background: rgba(2, 6, 23, 0.98);
}

.footer-inner {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  font-size: 0.82rem;
  color: var(--text-muted);
}

.footer-meta {
  font-size: 0.78rem;
}

/* RESPONSIVE */
@media (max-width: 900px) {
  .hero-inner {
    grid-template-columns: minmax(0, 1fr);
  }

  .hero-card {
    order: -1;
  }

  .grid-3,
  .steps,
  .contact-inner {
    grid-template-columns: minmax(0, 1fr);
  }

  .nav-links {
    display: none;
  }

  .hero {
    padding-top: 2.5rem;
  }
}

@media (max-width: 600px) {
  .container {
    padding: 0 1.1rem;
  }

  .hero-text h1 {
    font-size: 2.15rem;
  }
}