:root {
  --bg: #050711;
  --bg-alt: #0b0f1c;
  --bg-elevated: #111827;
  --accent: #38bdf8;
  --accent-soft: rgba(56, 189, 248, 0.12);
  --accent-strong: #0ea5e9;
  --text: #e5e7eb;
  --text-muted: #9ca3af;
  --border-subtle: rgba(148, 163, 184, 0.35);
  --radius-lg: 18px;
  --radius-md: 12px;
  --shadow-soft: 0 18px 35px rgba(15, 23, 42, 0.7);
  --max-width: 1120px;
  --transition-fast: 180ms ease-out;
  --transition-med: 220ms ease-out;
}

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

html, body {
  margin: 0;
  padding: 0;
}

body {
  font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  background: radial-gradient(circle at top, #0f172a 0, #020617 55%);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* Layout helpers */

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Header & nav */

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(16px);
  background: linear-gradient(to bottom, rgba(15, 23, 42, 0.98), rgba(15, 23, 42, 0.85));
  border-bottom: 1px solid rgba(148, 163, 184, 0.18);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1.5rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
}

.brand-mark {
  width: 28px;
  height: 28px;
  border-radius: 999px;
  background: conic-gradient(from 180deg, #0ea5e9, #22c55e, #a855f7, #0ea5e9);
  box-shadow: 0 0 0 2px rgba(15, 23, 42, 1), 0 0 32px rgba(56, 189, 248, 0.5);
}

.brand-text {
  display: flex;
  flex-direction: column;
}

.brand-name {
  font-weight: 600;
  font-size: 0.95rem;
}

.brand-tagline {
  font-size: 0.72rem;
  color: var(--text-muted);
}

/* Nav */

.nav {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  list-style: none;
  margin: 0;
  padding: 2px;
}

.nav-links a {
  text-decoration: none;
  color: var(--text-muted);
  font-size: 0.9rem;
  padding: 0.35rem 0;
  position: relative;
  transition: color var(--transition-fast);
}

.nav-links a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -0.1rem;
  width: 0;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, #38bdf8, #22c55e);
  transition: width var(--transition-fast);
}

.nav-links a:hover {
  color: var(--text);
}

.nav-links a:hover::after {
  width: 100%;
}

.nav-cta {
  padding: 0.45rem 0.9rem;
  border-radius: 999px;
  border: 1px solid rgba(148, 163, 184, 0.4);
  background: radial-gradient(circle at top left, rgba(56, 189, 248, 0.19), rgba(15, 23, 42, 0.9));
  color: var(--text);
  font-weight: 500;
}

.nav-links a.nav-cta {
  padding: 0.45rem 0.55rem !important;
}


/* Nav toggle (mobile) */

.nav-toggle {
  display: none;
  border: none;
  background: transparent;
  cursor: pointer;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 0.22rem;
  padding: 0.25rem;
}

.nav-bar {
  width: 20px;
  height: 2px;
  border-radius: 999px;
  background: var(--text);
}

/* Hero */

.hero {
  padding: 4.5rem 0 4rem;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.7fr) minmax(0, 1.3fr);
  gap: 2.5rem;
  align-items: stretch;
}

.hero-copy h1 {
  font-size: clamp(2.4rem, 4vw, 3rem);
  line-height: 1.1;
  margin: 0.4rem 0 0.75rem;
}

.eyebrow {
  font-size: 0.85rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
}

.hero-subtitle {
  color: var(--text-muted);
  max-width: 32rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin: 1.4rem 0 1.1rem;
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.meta-pill {
  font-size: 0.8rem;
  padding: 0.25rem 0.6rem;
  border-radius: 999px;
  border: 1px solid rgba(148, 163, 184, 0.45);
  background: rgba(15, 23, 42, 0.8);
  color: var(--text-muted);
}

/* Hero panel */

.hero-panel {
  position: relative;
}

.hero-panel-inner {
  position: relative;
  height: 100%;
  padding: 1.5rem 1.4rem;
  border-radius: 24px;
  border: 1px solid rgba(148, 163, 184, 0.5);
  background:
    radial-gradient(circle at top left, rgba(56, 189, 248, 0.24), transparent 55%),
    radial-gradient(circle at bottom right, rgba(59, 130, 246, 0.25), transparent 50%),
    rgba(15, 23, 42, 0.96);
  box-shadow: var(--shadow-soft);
}

.hero-panel-inner::before {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  border: 1px solid rgba(15, 23, 42, 0.9);
  pointer-events: none;
}

.hero-panel h2 {
  font-size: 1.2rem;
  margin-top: 0;
}

.hero-list {
  list-style: none;
  padding: 0;
  margin: 0.75rem 0 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.hero-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.55rem;
  font-size: 0.9rem;
}

.hero-list li::before {
  content: "●";
  font-size: 0.6rem;
  margin-top: 0.18rem;
  color: var(--accent-strong);
}

.hero-note {
  font-size: 0.85rem;
  color: var(--text-muted);
  border-radius: 14px;
  border: 1px dashed rgba(148, 163, 184, 0.7);
  padding: 0.7rem 0.75rem;
  background: rgba(15, 23, 42, 0.85);
}

/* Buttons */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.65rem 1.25rem;
  border-radius: 999px;
  border: 1px solid transparent;
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  text-decoration: none;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-med), border-color var(--transition-med), color var(--transition-med);
}

.btn-primary {
  background: radial-gradient(circle at top left, #38bdf8, #0ea5e9);
  color: #0b1120;
  box-shadow: 0 12px 25px rgba(56, 189, 248, 0.4);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 16px 35px rgba(56, 189, 248, 0.6);
}

.btn-ghost {
  background: rgba(15, 23, 42, 0.9);
  color: var(--text);
  border-color: rgba(148, 163, 184, 0.55);
}

.btn-ghost:hover {
  background: rgba(15, 23, 42, 1);
  border-color: var(--accent);
}

.btn-full {
  width: 100%;
}

/* Sections */

.section {
  padding: 4rem 0;
}

.section-alt {
  background: radial-gradient(circle at top, #020617 0, #020617 30%, #000 100%);
}

.section-header {
  text-align: center;
  max-width: 36rem;
  margin: 0 auto 2.5rem;
}

.section-header h2 {
  margin: 0 0 0.75rem;
  font-size: 1.8rem;
}

.section-header p {
  margin: 0;
  color: var(--text-muted);
}

/* Cards */

.card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.5rem;
}

.card {
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-subtle);
  background: linear-gradient(145deg, rgba(15, 23, 42, 0.95), rgba(15, 23, 42, 0.85));
  padding: 1.5rem 1.4rem 1.35rem;
  box-shadow: 0 16px 32px rgba(15, 23, 42, 0.9);
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}

.card::before {
  content: "";
  position: absolute;
  inset: -30%;
  opacity: 0;
  background: radial-gradient(circle at top left, rgba(56, 189, 248, 0.22), transparent 60%);
  transition: opacity var(--transition-med);
}

.card:hover::before {
  opacity: 1;
}

.card h3 {
  margin: 0;
  font-size: 1.1rem;
}

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

.card-list {
  list-style: none;
  padding: 0;
  margin: 0.25rem 0 0.9rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  font-size: 0.88rem;
  color: var(--text-muted);
}

.card-list li::before {
  content: "— ";
  color: var(--accent-strong);
}

.card-tag {
  align-self: flex-start;
  font-size: 0.78rem;
  padding: 0.25rem 0.6rem;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent-strong);
}

/* Steps */

.steps {
  display: grid;
  gap: 1.2rem;
  max-width: 44rem;
  margin: 0 auto;
}

.step {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 1rem;
  align-items: flex-start;
}

.step-number {
  width: 32px;
  height: 32px;
  border-radius: 999px;
  border: 1px solid rgba(148, 163, 184, 0.7);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  font-weight: 500;
  background: rgba(15, 23, 42, 0.9);
  color: var(--accent-strong);
}

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

.step-body p {
  margin: 0.2rem 0 0;
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* Results */

.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.stat {
  text-align: center;
  padding: 1.2rem 0.8rem;
  border-radius: var(--radius-md);
  border: 1px solid rgba(148, 163, 184, 0.4);
  background: linear-gradient(145deg, rgba(15, 23, 42, 0.92), rgba(15, 23, 42, 0.8));
}

.stat-value {
  font-size: 1.6rem;
  font-weight: 600;
  margin-bottom: 0.25rem;
  color: var(--accent-strong);
}

.stat-label {
  font-size: 0.9rem;
  color: var(--text-muted);
}

.quote-block {
  max-width: 44rem;
  margin: 0 auto;
  padding: 1.3rem 1.4rem;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(148, 163, 184, 0.5);
  background: rgba(15, 23, 42, 0.95);
  font-size: 0.95rem;
}

.quote-block p {
  margin: 0 0 0.6rem;
}

.quote-author {
  font-size: 0.85rem;
  color: var(--text-muted);
}


/* Case studies */

.case-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.4rem;
}

.case-card {
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-subtle);
  background: linear-gradient(145deg, rgba(15, 23, 42, 0.96), rgba(15, 23, 42, 0.88));
  padding: 1.3rem 1.2rem 1.15rem;
  box-shadow: 0 16px 30px rgba(15, 23, 42, 0.9);
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
  position: relative;
  overflow: hidden;
}

.case-card::before {
  content: "";
  position: absolute;
  inset: -30%;
  opacity: 0;
  background: radial-gradient(circle at top left, rgba(56, 189, 248, 0.22), transparent 60%);
  transition: opacity var(--transition-med);
}

.case-card:hover::before {
  opacity: 1;
}

.case-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.78rem;
}

.case-client {
  padding: 0.25rem 0.55rem;
  border-radius: 999px;
  background: rgba(15, 23, 42, 0.9);
  border: 1px solid rgba(148, 163, 184, 0.6);
  color: var(--text-muted);
}

.case-tag {
  padding: 0.25rem 0.6rem;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent-strong);
}

.case-body {
  font-size: 0.88rem;
  color: var(--text-muted);
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.case-body strong {
  color: var(--text);
  font-weight: 500;
}

.case-note {
  margin-top: 1.8rem;
  font-size: 0.8rem;
  text-align: center;
  color: var(--text-muted);
}

/* Responsive tweak for case studies */

@media (max-width: 900px) {
  .case-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 720px) {
  .case-grid {
    grid-template-columns: minmax(0, 1fr);
  }
}

/* Case Studies */

/* Contact */

.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 1.1fr);
  gap: 2rem;
  align-items: flex-start;
}

.contact-copy h2 {
  margin-top: 0;
  font-size: 1.6rem;
}

.contact-copy p {
  color: var(--text-muted);
}

.contact-list {
  list-style: none;
  padding: 0;
  margin: 1rem 0 0;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* Form */

.contact-form {
  border-radius: var(--radius-lg);
  border: 1px solid rgba(148, 163, 184, 0.6);
  background: rgba(15, 23, 42, 0.9);
  padding: 1.2rem 1.25rem 1.3rem;
  box-shadow: var(--shadow-soft);
}

.form-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.9rem;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  margin-bottom: 0.75rem;
}

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

input[type="text"],
input[type="email"],
textarea {
  border-radius: 10px;
  border: 1px solid rgba(148, 163, 184, 0.7);
  background: rgba(15, 23, 42, 0.9);
  color: var(--text);
  font: inherit;
  padding: 0.5rem 0.6rem;
  outline: none;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast);
}

input::placeholder,
textarea::placeholder {
  color: rgba(148, 163, 184, 0.7);
}

input:focus,
textarea:focus {
  border-color: var(--accent-strong);
  box-shadow: 0 0 0 1px rgba(56, 189, 248, 0.3);
  background: #020617;
}

textarea {
  resize: vertical;
  min-height: 100px;
}

.checkbox-field {
  flex-direction: row;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8rem;
}

.checkbox-field input[type="checkbox"] {
  width: 16px;
  height: 16px;
}

.form-note {
  margin-top: 0.7rem;
  font-size: 0.78rem;
  color: var(--text-muted);
}

/* Footer */

.site-footer {
  border-top: 1px solid rgba(148, 163, 184, 0.35);
  padding: 0.9rem 0 1.1rem;
  background: rgba(2, 6, 23, 0.96);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  font-size: 0.78rem;
  color: var(--text-muted);
}

.footer-divider {
  opacity: 0.6;
}

/* Responsive */

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

  .hero-panel {
    order: -1;
  }

  .card-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .stats-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (max-width: 720px) {
  .nav-links {
    position: absolute;
    inset: 52px 1rem auto 1rem;
    border-radius: 14px;
    border: 1px solid rgba(148, 163, 184, 0.4);
    background: rgba(15, 23, 42, 0.98);
    padding: 0.75rem 0.9rem;
    flex-direction: column;
    align-items: stretch;
    gap: 0.2rem;
    transform-origin: top;
    transform: scaleY(0.8);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-med), transform var(--transition-med);
  }

  .nav-links.show {
    opacity: 1;
    transform: scaleY(1);
    pointer-events: auto;
  }

  .nav-links li {
    padding: 0.5rem 0.5rem;
  }

  .nav-links a {
    display: block;
  }

  .nav-cta {
    text-align: center;
    margin-top: 0.15rem;
        padding: 16px;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .nav-container {
    padding-inline: 1rem;
  }

  .hero {
    padding-top: 3.2rem;
  }

  .card-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .stats-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .form-row {
    grid-template-columns: minmax(0, 1fr);
  }
}