/* =============================================================================
   SmartExcellence – Main Stylesheet
   Mobile-first, no framework dependency.
   Organised sections:
     1. Custom Properties (tokens)
     2. Reset & Base
     3. Typography
     4. Utilities
     5. Buttons
     6. Navigation / Header
     7. Hero
     8. What Is
     9. How It Works
    10. Why Choose
    11. Value Propositions
    12. Highlights
    13. Key Features
    14. Footer CTA
    15. Site Footer
    16. 404
    17. Scroll Animations
    18. Responsive overrides
   ============================================================================= */

/* =============================================================================
   1. Custom Properties
   ============================================================================= */
:root {
  /* Brand palette */
  --teal:       #00B3C6;
  --teal-dark:  #006878;
  --teal-deep:  #003F50;
  --teal-light: #00D4E8;
  --teal-bg:    #E0F7FA;

  /* Neutral */
  --white:      #FFFFFF;
  --off-white:  #F8FFFE;
  --text-dark:  #0D2233;
  --text-body:  #374151;
  --text-muted: #6B7280;
  --border:     #E5E7EB;

  /* Gradients */
  --grad-hero:  linear-gradient(135deg, #003F50 0%, #00526B 55%, #003F50 100%);
  --grad-teal:  linear-gradient(135deg, #00B3C6 0%, #006878 100%);
  --grad-cta:   linear-gradient(135deg, #003F50 0%, #005F7A 50%, #003F50 100%);

  /* Shadows */
  --shadow-sm:  0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.05);
  --shadow-md:  0 4px 16px rgba(0,0,0,.10);
  --shadow-lg:  0 8px 32px rgba(0,0,0,.14);
  --shadow-teal:0 8px 24px rgba(0,179,198,.25);

  /* Spacing scale */
  --space-xs:  .5rem;
  --space-sm:  1rem;
  --space-md:  1.5rem;
  --space-lg:  2.5rem;
  --space-xl:  4rem;
  --space-2xl: 6rem;

  /* Border radius */
  --radius-sm:  6px;
  --radius-md:  12px;
  --radius-lg:  20px;
  --radius-full:9999px;

  /* Typography */
  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
  --leading-tight: 1.15;
  --leading-body:  1.65;

  /* Transitions */
  --t-fast:  150ms ease;
  --t-mid:   250ms ease;
  --t-slow:  400ms ease;

  /* Layout */
  --container: 1200px;
  --section-py: 5rem;
}

/* =============================================================================
   2. Reset & Base
   ============================================================================= */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  font-size: 16px;
}

body {
  font-family: var(--font-sans);
  color: var(--text-body);
  background: var(--white);
  line-height: var(--leading-body);
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: var(--teal-dark);
  text-decoration: none;
  transition: color var(--t-fast);
}
a:hover { color: var(--teal); }
a:focus-visible {
  outline: 3px solid var(--teal);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

ul, ol { list-style: none; }

button {
  cursor: pointer;
  font-family: inherit;
  border: none;
  background: none;
}

/* =============================================================================
   3. Typography
   ============================================================================= */
h1, h2, h3, h4, h5, h6 {
  color: var(--text-dark);
  line-height: var(--leading-tight);
  font-weight: 700;
}

h1 { font-size: clamp(2rem,   5vw, 3.25rem); }
h2 { font-size: clamp(1.6rem, 4vw, 2.5rem);  }
h3 { font-size: clamp(1.1rem, 2.5vw, 1.35rem); }
h4 { font-size: 1.1rem; }

p { max-width: 68ch; }
p + p { margin-top: .75rem; }

strong { font-weight: 700; }

/* =============================================================================
   4. Utilities
   ============================================================================= */

/* Screen-reader only */
.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

/* Skip link */
.skip-link:focus {
  position: fixed; top: 1rem; left: 1rem;
  background: var(--teal-dark); color: var(--white);
  padding: .5rem 1rem; border-radius: var(--radius-sm);
  z-index: 9999; font-weight: 600;
}

/* Layout */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: 1.5rem;
}

.section { padding-block: var(--section-py); }
.section--white { background: var(--white); }
.section--light { background: var(--teal-bg); }
.section--teal  { background: var(--grad-teal); }
.section--dark  { background: var(--teal-deep); }
.section--deep  { background: var(--teal-deep); }

.text-center { text-align: center; }
.text-center p { margin-inline: auto; }

/* Section headers */
.section-header { margin-bottom: var(--space-xl); }
.section-header + * { margin-top: 0; }

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  font-size: .75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--teal);
  background: rgba(0,179,198,.1);
  border: 1px solid rgba(0,179,198,.25);
  border-radius: var(--radius-full);
  padding: .3rem .9rem;
  margin-bottom: 1rem;
}
.section-tag--light {
  color: var(--teal-light);
  background: rgba(0,212,232,.12);
  border-color: rgba(0,212,232,.3);
}

.section-title {
  margin-bottom: .75rem;
}
.section-title--white { color: var(--white); }

.section-subtitle {
  font-size: 1.05rem;
  color: var(--text-muted);
  max-width: 60ch;
  margin-inline: auto;
}
.section-subtitle--white { color: rgba(255,255,255,.8); }

/* Icon sizing */
.se-icon {
  width: 1.25em; height: 1.25em;
  flex-shrink: 0;
  vertical-align: middle;
}

/* =============================================================================
   5. Buttons
   ============================================================================= */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  font-family: var(--font-sans);
  font-size: .9rem;
  font-weight: 600;
  line-height: 1;
  padding: .75rem 1.5rem;
  border-radius: var(--radius-full);
  border: 2px solid transparent;
  transition: background var(--t-mid), color var(--t-mid),
              border-color var(--t-mid), box-shadow var(--t-mid),
              transform var(--t-fast);
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
}
.btn:focus-visible {
  outline: 3px solid var(--teal);
  outline-offset: 3px;
}
.btn:active { transform: scale(.98); }

.btn-lg { font-size: 1rem; padding: .9rem 2rem; }

/* Primary – teal fill */
.btn-primary {
  background: var(--teal);
  color: var(--white);
  border-color: var(--teal);
  box-shadow: var(--shadow-teal);
}
.btn-primary:hover {
  background: var(--teal-dark);
  border-color: var(--teal-dark);
  color: var(--white);
  box-shadow: 0 8px 28px rgba(0,104,120,.3);
}

/* White – for dark backgrounds */
.btn-white {
  background: var(--white);
  color: var(--teal-dark);
  border-color: var(--white);
}
.btn-white:hover {
  background: var(--teal-bg);
  border-color: var(--teal-bg);
  color: var(--teal-dark);
}

/* Outline */
.btn-outline {
  background: transparent;
  color: var(--teal);
  border-color: var(--teal);
}
.btn-outline:hover {
  background: var(--teal);
  color: var(--white);
}

/* Ghost – for hero on dark */
.btn-ghost {
  background: rgba(255,255,255,.1);
  color: var(--white);
  border-color: rgba(255,255,255,.35);
  backdrop-filter: blur(4px);
}
.btn-ghost:hover {
  background: rgba(255,255,255,.2);
  border-color: rgba(255,255,255,.6);
  color: var(--white);
}

/* =============================================================================
   6. Navigation / Header
   ============================================================================= */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(0,63,80,.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255,255,255,.08);
  transition: background var(--t-mid), box-shadow var(--t-mid);
}
.site-header.scrolled {
  background: rgba(0,63,80,.98);
  box-shadow: 0 2px 20px rgba(0,0,0,.25);
}

.nav-container {
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: 1.5rem;
  height: 68px;
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

/* Logo */
.site-logo {
  display: flex;
  align-items: center;
  gap: .75rem;
  text-decoration: none;
  flex-shrink: 0;
}
.site-logo:hover { opacity: .9; }
.site-logo:focus-visible {
  outline: 3px solid var(--teal-light);
  outline-offset: 4px;
  border-radius: var(--radius-sm);
}

.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
  color: var(--white);
  font-size: .95rem;
}
.logo-text strong { font-weight: 800; }
.logo-ai { color: var(--teal-light); }
.logo-text small {
  font-size: .65rem;
  color: rgba(255,255,255,.6);
  font-weight: 400;
  letter-spacing: .03em;
}

/* Nav */
.site-nav { display: none; flex: 1; }

.nav-menu {
  display: flex;
  align-items: center;
  gap: .25rem;
  list-style: none;
}
.nav-menu a {
  display: block;
  padding: .5rem .85rem;
  font-size: .875rem;
  font-weight: 500;
  color: rgba(255,255,255,.8);
  border-radius: var(--radius-sm);
  transition: color var(--t-fast), background var(--t-fast);
}
.nav-menu a:hover,
.nav-menu .current-menu-item > a {
  color: var(--white);
  background: rgba(255,255,255,.08);
}

/* Nav CTA */
.nav-cta { margin-left: auto; }

/* Mobile toggle */
.nav-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  padding: 6px;
  margin-left: auto;
  transition: background var(--t-fast);
}
.nav-toggle:hover { background: rgba(255,255,255,.08); }
.nav-toggle:focus-visible { outline: 3px solid var(--teal-light); }

.toggle-bar {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: transform var(--t-mid), opacity var(--t-fast);
}
.nav-toggle[aria-expanded="true"] .toggle-bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .toggle-bar:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav-toggle[aria-expanded="true"] .toggle-bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile nav panel */
.site-nav.is-open {
  display: block;
  position: fixed;
  inset: 68px 0 0;
  background: var(--teal-deep);
  padding: 2rem 1.5rem;
  overflow-y: auto;
  z-index: 90;
  animation: navSlideIn var(--t-mid) ease;
}

@keyframes navSlideIn {
  from { opacity: 0; transform: translateY(-8px); }
  to   { opacity: 1; transform: translateY(0); }
}

.site-nav.is-open .nav-menu {
  flex-direction: column;
  align-items: stretch;
}
.site-nav.is-open .nav-menu a {
  font-size: 1.05rem;
  padding: .85rem 1rem;
  border-radius: var(--radius-md);
  border-bottom: 1px solid rgba(255,255,255,.06);
}

/* =============================================================================
   7. Hero
   ============================================================================= */
.se-hero {
  position: relative;
  background: var(--grad-hero);
  overflow: hidden;
  padding-block: 6rem 5rem;
  min-height: 90vh;
  display: flex;
  align-items: center;
}

/* Decorative rings */
.hero-rings { position: absolute; inset: 0; pointer-events: none; overflow: hidden; }
.hero-ring {
  position: absolute;
  border-radius: 50%;
  border: 1px solid rgba(0,179,198,.15);
}
.hero-ring--1 { width: 600px; height: 600px; top: -200px; right: -150px; }
.hero-ring--2 { width: 400px; height: 400px; top: -80px;  right: -50px;  border-color: rgba(0,179,198,.08); }
.hero-ring--3 { width: 900px; height: 900px; bottom: -400px; left: -300px; border-color: rgba(0,179,198,.05); }

.hero-container { position: relative; z-index: 1; }
.hero-content { max-width: 860px; margin-inline: auto; text-align: center; }

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  font-size: .72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--teal-light);
  background: rgba(0,212,232,.1);
  border: 1px solid rgba(0,212,232,.25);
  border-radius: var(--radius-full);
  padding: .35rem 1rem;
  margin-bottom: 1.5rem;
}

.hero-title {
  font-size: clamp(2.2rem, 6vw, 3.75rem);
  color: var(--white);
  font-weight: 900;
  line-height: 1.1;
  margin-bottom: 1.25rem;
}
.hero-title-accent {
  display: block;
  color: var(--teal-light);
}

.hero-subtitle {
  font-size: clamp(1rem, 2.5vw, 1.2rem);
  color: rgba(255,255,255,.8);
  max-width: 58ch;
  margin-inline: auto;
  margin-bottom: 2.5rem;
  line-height: 1.6;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
  margin-bottom: 3.5rem;
}

/* Hero stats strip */
.hero-stats {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 1rem;
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: var(--radius-lg);
  padding: 1.25rem 2rem;
  backdrop-filter: blur(8px);
}
.hero-stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .2rem;
}
.hero-stat strong {
  font-size: 1.75rem;
  font-weight: 900;
  color: var(--teal-light);
  line-height: 1;
}
.hero-stat span {
  font-size: .72rem;
  color: rgba(255,255,255,.65);
  text-transform: uppercase;
  letter-spacing: .06em;
  font-weight: 500;
}
.hero-stat-divider {
  width: 1px;
  height: 36px;
  background: rgba(255,255,255,.15);
}

/* Scroll indicator */
.hero-scroll {
  position: absolute;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%);
  color: rgba(255,255,255,.5);
  animation: bounce 2s infinite;
}
.hero-scroll:hover { color: var(--teal-light); }
@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50%       { transform: translateX(-50%) translateY(6px); }
}

/* =============================================================================
   8. What Is
   ============================================================================= */
.what-is-grid {
  display: grid;
  gap: var(--space-xl);
  align-items: start;
}

.what-is-lead {
  font-size: 1.1rem;
  color: var(--text-dark);
  font-weight: 500;
  margin-bottom: 1rem;
}

.what-is-content .btn { margin-top: var(--space-md); }

/* Pillars */
.pillar-list { display: grid; gap: 1.25rem; }
.pillar-item {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}
.pillar-icon {
  flex-shrink: 0;
  width: 44px; height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  background: rgba(0,179,198,.12);
  color: var(--teal-dark);
}
.pillar-icon--teal { background: rgba(0,179,198,.12); color: var(--teal-dark); }
.pillar-item strong {
  display: block;
  font-size: .95rem;
  color: var(--text-dark);
  margin-bottom: .2rem;
}
.pillar-item p {
  font-size: .875rem;
  color: var(--text-muted);
  margin: 0;
  max-width: 100%;
}
.pillar-item .se-icon { width: 22px; height: 22px; }

/* =============================================================================
   9. How It Works
   ============================================================================= */
.steps-flow {
  display: grid;
  gap: 2.5rem;
  margin-top: var(--space-xl);
  list-style: none;
  counter-reset: steps;
}

.step-item {
  position: relative;
  text-align: center;
}

.step-number {
  font-size: 3rem;
  font-weight: 900;
  color: rgba(0,212,232,.15);
  line-height: 1;
  margin-bottom: .5rem;
  letter-spacing: -.02em;
}

.step-icon {
  width: 64px; height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0,179,198,.12);
  border: 2px solid rgba(0,179,198,.25);
  border-radius: 50%;
  margin: 0 auto 1rem;
  color: var(--teal-light);
}
.step-icon .se-icon { width: 28px; height: 28px; }

.step-title {
  color: var(--white);
  font-size: 1.2rem;
  margin-bottom: .5rem;
}
.step-desc {
  color: rgba(255,255,255,.7);
  font-size: .9rem;
  max-width: 28ch;
  margin-inline: auto;
  line-height: 1.6;
}

/* Connector line – hidden on mobile, shown at ≥1024px via grid */
.step-connector { display: none; }

/* =============================================================================
   10. Why Choose
   ============================================================================= */
.why-choose-grid {
  display: grid;
  gap: var(--space-xl);
  align-items: center;
}

.why-choose-content .section-tag { margin-bottom: 1rem; }
.why-choose-content .section-title { color: var(--white); margin-bottom: 1rem; }
.why-choose-content .section-subtitle { color: rgba(255,255,255,.8); margin-inline: 0; margin-bottom: 2rem; }
.why-choose-content .btn { margin-top: 0; }

.proof-bullets { display: grid; gap: 1rem; }
.proof-bullet {
  display: flex;
  align-items: flex-start;
  gap: .75rem;
  background: rgba(255,255,255,.07);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: var(--radius-md);
  padding: 1rem 1.25rem;
}
.proof-check {
  flex-shrink: 0;
  width: 28px; height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0,212,232,.15);
  border-radius: 50%;
  color: var(--teal-light);
}
.proof-check .se-icon { width: 15px; height: 15px; }
.proof-bullet span { color: rgba(255,255,255,.9); font-size: .95rem; line-height: 1.5; }
.proof-bullet strong { color: var(--teal-light); }

.why-choose-badge {
  display: inline-flex;
  align-items: center;
  gap: .75rem;
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.15);
  border-radius: var(--radius-md);
  padding: 1rem 1.25rem;
  margin-top: 1.25rem;
  color: var(--white);
}
.why-choose-badge svg { color: #FFD700; }
.why-choose-badge strong { display: block; font-size: 1rem; }
.why-choose-badge span { font-size: .8rem; color: rgba(255,255,255,.7); }

/* =============================================================================
   11. Value Propositions
   ============================================================================= */
.vp-grid {
  display: grid;
  gap: 1.5rem;
}

.vp-card {
  border-radius: var(--radius-lg);
  padding: 2rem;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: transform var(--t-mid), box-shadow var(--t-mid);
}
.vp-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.vp-card--light { background: var(--white); }
.vp-card--dark  { background: var(--teal-deep); border-color: rgba(0,179,198,.2); }
.vp-card--teal  { background: var(--teal-bg);   border-color: rgba(0,179,198,.2); }

.vp-card__icon {
  width: 52px; height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  background: var(--teal);
  color: var(--white);
  margin-bottom: 1rem;
}
.vp-card__icon .se-icon { width: 26px; height: 26px; }
.vp-card--dark .vp-card__icon { background: rgba(0,212,232,.15); color: var(--teal-light); }

.vp-card__audience {
  display: block;
  font-size: .7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--teal);
  margin-bottom: .4rem;
}
.vp-card--dark .vp-card__audience { color: var(--teal-light); }

.vp-card__title {
  font-size: 1.15rem;
  margin-bottom: 1rem;
  color: var(--text-dark);
}
.vp-card--dark .vp-card__title { color: var(--white); }

.vp-card__list { display: grid; gap: .65rem; }
.vp-card__list li {
  display: flex;
  align-items: flex-start;
  gap: .6rem;
  font-size: .875rem;
  color: var(--text-body);
  line-height: 1.5;
}
.vp-card--dark .vp-card__list li { color: rgba(255,255,255,.8); }
.vp-card__list .se-icon { flex-shrink: 0; color: var(--teal); margin-top: .15rem; width: 16px; height: 16px; }
.vp-card--dark .vp-card__list .se-icon { color: var(--teal-light); }

/* =============================================================================
   12. Highlights
   ============================================================================= */
.highlights-grid {
  display: grid;
  gap: 1.25rem;
}

.highlight-card {
  display: flex;
  gap: 1.25rem;
  align-items: flex-start;
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(0,179,198,.2);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  transition: background var(--t-mid), border-color var(--t-mid);
}
.highlight-card:hover {
  background: rgba(0,179,198,.08);
  border-color: rgba(0,179,198,.35);
}

.highlight-card__icon {
  flex-shrink: 0;
  width: 52px; height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0,212,232,.1);
  border: 1px solid rgba(0,212,232,.2);
  border-radius: 50%;
  color: var(--teal-light);
}
.highlight-card__icon .se-icon { width: 26px; height: 26px; }

.highlight-card__title {
  font-size: 1rem;
  color: var(--white);
  font-weight: 700;
  margin-bottom: .4rem;
}
.highlight-card__desc {
  font-size: .875rem;
  color: rgba(255,255,255,.7);
  line-height: 1.6;
  max-width: 100%;
}

/* =============================================================================
   13. Key Features
   ============================================================================= */
.features-grid {
  display: grid;
  gap: 1.5rem;
}

.feature-card {
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  background: var(--white);
  box-shadow: var(--shadow-sm);
  transition: transform var(--t-mid), box-shadow var(--t-mid), border-color var(--t-mid);
  position: relative;
  overflow: hidden;
}
.feature-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--grad-teal);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--t-slow);
}
.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: rgba(0,179,198,.3);
}
.feature-card:hover::before { transform: scaleX(1); }

.feature-card__header {
  display: flex;
  align-items: center;
  gap: .75rem;
  margin-bottom: 1rem;
}
.feature-card__num {
  font-size: 2rem;
  font-weight: 900;
  color: rgba(0,179,198,.12);
  line-height: 1;
}
.feature-card__icon {
  width: 44px; height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0,179,198,.1);
  border-radius: var(--radius-md);
  color: var(--teal-dark);
}
.feature-card__icon .se-icon { width: 22px; height: 22px; }

.feature-card__title {
  font-size: 1.05rem;
  color: var(--text-dark);
  margin-bottom: .35rem;
}
.feature-card__claim {
  display: inline-block;
  font-size: .8rem;
  font-weight: 700;
  color: var(--teal-dark);
  background: rgba(0,179,198,.08);
  border-radius: var(--radius-full);
  padding: .2rem .7rem;
  margin-bottom: .75rem;
  max-width: 100%;
}
.feature-card__desc {
  font-size: .875rem;
  color: var(--text-muted);
  line-height: 1.65;
  max-width: 100%;
}

.features-cta {
  margin-top: var(--space-xl);
  padding: 2rem;
  background: var(--teal-bg);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(0,179,198,.2);
}
.features-cta__text {
  font-size: 1.05rem;
  font-weight: 500;
  color: var(--teal-dark);
  margin-bottom: 1.25rem;
}

/* =============================================================================
   14. Footer CTA Banner
   ============================================================================= */
.se-footer-cta {
  position: relative;
  background: var(--grad-cta);
  padding-block: var(--space-2xl);
  overflow: hidden;
}

.footer-cta-rings { position: absolute; inset: 0; pointer-events: none; }
.footer-cta-ring {
  position: absolute;
  border-radius: 50%;
  border: 1px solid rgba(0,179,198,.12);
}
.footer-cta-ring--1 { width: 700px; height: 700px; top: -250px; right: -200px; }
.footer-cta-ring--2 { width: 500px; height: 500px; bottom: -200px; left: -150px; }

.footer-cta-container { position: relative; z-index: 1; }

.footer-cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
  margin-bottom: 2rem;
}

.footer-cta-contact {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: .75rem;
}
.cta-contact-link {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  color: rgba(255,255,255,.8);
  font-size: .925rem;
  font-weight: 500;
  transition: color var(--t-fast);
}
.cta-contact-link:hover { color: var(--white); }
.cta-contact-link .se-icon { width: 16px; height: 16px; }
.cta-contact-sep { color: rgba(255,255,255,.3); }

/* =============================================================================
   15. Site Footer
   ============================================================================= */
.site-footer {
  background: #001E2B;
  color: rgba(255,255,255,.7);
}

.footer-inner {
  display: grid;
  gap: 2.5rem;
  padding-block: 3.5rem;
}

.footer-logo {
  display: inline-flex;
  align-items: center;
  gap: .65rem;
  text-decoration: none;
  margin-bottom: .75rem;
}
.footer-logo-text {
  font-size: 1.05rem;
  color: rgba(255,255,255,.9);
  font-weight: 400;
}
.footer-logo-text strong { font-weight: 800; color: var(--white); }
.footer-tagline {
  font-size: .82rem;
  color: rgba(255,255,255,.5);
  max-width: 100%;
}

.footer-menu {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem 1.5rem;
  list-style: none;
}
.footer-menu a {
  font-size: .875rem;
  color: rgba(255,255,255,.65);
  transition: color var(--t-fast);
}
.footer-menu a:hover { color: var(--teal-light); }

.footer-contact { display: flex; flex-direction: column; gap: .5rem; }
.footer-contact-label { font-size: .72rem; font-weight: 700; text-transform: uppercase; letter-spacing: .08em; color: rgba(255,255,255,.4); }
.footer-phone,
.footer-website {
  font-size: .95rem;
  color: rgba(255,255,255,.8);
  font-weight: 500;
  transition: color var(--t-fast);
}
.footer-phone:hover,
.footer-website:hover { color: var(--teal-light); }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.06);
  padding-block: 1.25rem;
}
.footer-bottom .container {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  justify-content: space-between;
  align-items: center;
}
.footer-copy,
.footer-legal {
  font-size: .8rem;
  color: rgba(255,255,255,.4);
  max-width: 100%;
}

/* =============================================================================
   16. 404
   ============================================================================= */
.se-404 { padding-block: 8rem; }
.se-404__inner { max-width: 520px; margin-inline: auto; }
.se-404__code {
  display: block;
  font-size: 6rem;
  font-weight: 900;
  color: var(--teal);
  line-height: 1;
  margin-bottom: 1rem;
}
.se-404__title { margin-bottom: .75rem; }
.se-404__desc  { margin-bottom: 2rem; max-width: 100%; }
.se-404__actions { display: flex; flex-wrap: wrap; gap: 1rem; justify-content: center; }

/* =============================================================================
   17. Scroll animations (JS adds .is-visible)
   ============================================================================= */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .55s ease, transform .55s ease;
}
.fade-in.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger via data-delay applied as CSS var by JS */
.fade-in[style] { transition-delay: var(--delay, 0ms); }

/* =============================================================================
   18. Responsive overrides
   ============================================================================= */

/* ── 640px – small landscape ── */
@media (min-width: 640px) {
  .hero-stat-divider { display: block; }

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

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

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

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

  .footer-inner { grid-template-columns: 1fr 1fr; }
}

/* ── 768px – tablet ── */
@media (min-width: 768px) {
  :root { --section-py: 6rem; }

  .what-is-grid { grid-template-columns: 1fr 1fr; align-items: start; }

  .why-choose-grid { grid-template-columns: 1fr 1fr; align-items: center; }

  .footer-inner { grid-template-columns: 2fr 1fr 1fr; }
}

/* ── 1024px – desktop ── */
@media (min-width: 1024px) {
  :root { --section-py: 7rem; }

  /* Nav */
  .site-nav { display: flex; align-items: center; }
  .nav-toggle { display: none; }
  .nav-cta { margin-left: 0; }

  /* Steps horizontal */
  .steps-flow {
    grid-template-columns: repeat(4, 1fr);
    position: relative;
  }
  .step-connector {
    display: block;
    position: absolute;
    top: 80px; /* vertically aligned to icon center */
    width: calc(100% / 4 - 64px);
    height: 1px;
    background: rgba(0,212,232,.2);
    left: calc(var(--col) * (100% / 4) + 32px);
  }
  .step-item:nth-child(1) { --col: 0; }
  .step-item:nth-child(2) { --col: 1; }
  .step-item:nth-child(3) { --col: 2; }

  /* Value props */
  .vp-grid { grid-template-columns: repeat(3, 1fr); }

  /* Highlights */
  .highlights-grid { grid-template-columns: repeat(3, 1fr); }

  /* Features */
  .features-grid { grid-template-columns: repeat(3, 1fr); }
}

/* ── 1280px – wide ── */
@media (min-width: 1280px) {
  :root { --section-py: 8rem; }

  .hero-title { font-size: 4rem; }

  .footer-inner { grid-template-columns: 2fr 1fr 1fr 1fr; }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
  .fade-in { opacity: 1; transform: none; }
  .hero-scroll { animation: none; }
}

/* Print */
@media print {
  .site-header,
  .nav-toggle,
  .hero-scroll,
  .hero-rings,
  .footer-cta-rings { display: none; }
  .se-hero { min-height: auto; background: none; }
  .hero-title, .hero-subtitle { color: #000; }
  .btn { display: none; }
}