/* ========================================
   SUNDERTECK — Design Tokens
   ======================================== */

:root {
  /* ---- Raw Colors ---- */
  --color-navy:       #0B1120;
  --color-navy-light: #111827;
  --color-navy-mid:   #1E293B;
  --color-white:      #FFFFFF;
  --color-grey-100:   #F1F5F9;
  --color-grey-200:   #E2E8F0;
  --color-grey-300:   #CBD5E1;
  --color-grey-400:   #94A3B8;
  --color-grey-500:   #64748B;
  --color-grey-600:   #475569;
  --color-grey-900:   #0F172A;
  --color-orange:     #FF6B35;
  --color-orange-dark:#E85A2A;
  --color-orange-glow:rgba(255, 107, 53, 0.2);
  --color-green:      #10B981;
  --color-red:        #EF4444;

  /* ---- Light Theme (default) ---- */
  --color-cyan:       #0891B2;
  --color-cyan-dark:  #0E7490;
  --color-cyan-glow:  rgba(8, 145, 178, 0.10);

  /* Semantic */
  --color-primary:    var(--color-cyan);
  --color-accent:     var(--color-orange);
  --color-bg:         #FFFFFF;
  --color-surface:    #F8FAFC;
  --color-surface-2:  #F1F5F9;
  --color-text:       #475569;
  --color-text-muted: #64748B;
  --color-heading:    #0F172A;

  /* ---- Typography ---- */
  --font-family:   'Outfit', sans-serif;
  --text-xs:       0.75rem;    /* 12px */
  --text-sm:       0.875rem;   /* 14px */
  --text-base:     1rem;       /* 16px */
  --text-lg:       1.125rem;   /* 18px */
  --text-xl:       1.25rem;    /* 20px */
  --text-2xl:      1.5rem;     /* 24px */
  --text-3xl:      1.875rem;   /* 30px */
  --text-4xl:      2.25rem;    /* 36px */
  --text-5xl:      3rem;       /* 48px */
  --text-6xl:      3.75rem;    /* 60px */

  --leading-tight:   1.2;
  --leading-normal:  1.6;
  --leading-relaxed: 1.8;

  --weight-normal:   400;
  --weight-medium:   500;
  --weight-semibold: 600;
  --weight-bold:     700;
  --weight-extrabold:800;

  /* ---- Spacing (4px base) ---- */
  --space-1:  0.25rem;   /* 4px */
  --space-2:  0.5rem;    /* 8px */
  --space-3:  0.75rem;   /* 12px */
  --space-4:  1rem;      /* 16px */
  --space-5:  1.25rem;   /* 20px */
  --space-6:  1.5rem;    /* 24px */
  --space-8:  2rem;      /* 32px */
  --space-10: 2.5rem;    /* 40px */
  --space-12: 3rem;      /* 48px */
  --space-16: 4rem;      /* 64px */
  --space-20: 5rem;      /* 80px */
  --space-24: 6rem;      /* 96px */

  /* ---- Borders ---- */
  --radius-sm:  6px;
  --radius-md:  12px;
  --radius-lg:  20px;
  --radius-xl:  28px;
  --radius-full:9999px;

  --border-subtle: 1px solid rgba(0,0,0,0.08);
  --border-accent: 1px solid var(--color-cyan);

  /* ---- Shadows ---- */
  --shadow-sm:  0 1px 3px rgba(0,0,0,0.08);
  --shadow-md:  0 4px 12px rgba(0,0,0,0.08);
  --shadow-lg:  0 8px 30px rgba(0,0,0,0.10);
  --shadow-xl:  0 16px 50px rgba(0,0,0,0.12);
  --shadow-glow:0 0 20px var(--color-cyan-glow);
  --shadow-glow-orange:0 0 20px var(--color-orange-glow);

  /* ---- Transitions ---- */
  --ease-out:    cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --duration-fast:    150ms;
  --duration-normal:  300ms;
  --duration-slow:    500ms;

  /* ---- Layout ---- */
  --container-max: 1200px;
  --container-padding: var(--space-6);
  --section-gap: var(--space-24);

  /* ---- Glass ---- */
  --glass-bg:    rgba(255, 255, 255, 0.70);
  --glass-blur:  16px;
  --glass-border:1px solid rgba(0,0,0,0.06);
}

/* ======== DARK THEME ======== */
[data-theme="dark"] {
  --color-cyan:       #00D4FF;
  --color-cyan-dark:  #00A3CC;
  --color-cyan-glow:  rgba(0, 212, 255, 0.15);

  --color-primary:    var(--color-cyan);
  --color-bg:         #0B1120;
  --color-surface:    #111827;
  --color-surface-2:  #1E293B;
  --color-text:       #E2E8F0;
  --color-text-muted: #94A3B8;
  --color-heading:    #FFFFFF;

  --border-subtle: 1px solid rgba(255,255,255,0.06);

  --shadow-sm:  0 1px 3px rgba(0,0,0,0.3);
  --shadow-md:  0 4px 12px rgba(0,0,0,0.3);
  --shadow-lg:  0 8px 30px rgba(0,0,0,0.4);
  --shadow-xl:  0 16px 50px rgba(0,0,0,0.5);

  --glass-bg:    rgba(17, 24, 39, 0.6);
  --glass-border:1px solid rgba(255,255,255,0.08);
}
/* ========================================
   SUNDERTECK — Base Styles
   ======================================== */

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  transition: background-color var(--duration-normal) var(--ease-out),
              color var(--duration-normal) var(--ease-out);
}

body {
  font-family: var(--font-family);
  font-size: var(--text-base);
  font-weight: var(--weight-normal);
  line-height: var(--leading-normal);
  color: var(--color-text);
  background: var(--color-bg);
  background-image:
    radial-gradient(ellipse at 20% 0%, rgba(8,145,178,0.04) 0%, transparent 60%),
    radial-gradient(ellipse at 80% 100%, rgba(255,107,53,0.03) 0%, transparent 60%);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--duration-fast) var(--ease-out);
}
a:hover {
  color: var(--color-cyan-dark);
}

ul, ol {
  list-style: none;
}

button, input, textarea, select {
  font: inherit;
  color: inherit;
  border: none;
  outline: none;
  background: none;
}

button {
  cursor: pointer;
}

/* ---- Typography ---- */
h1, h2, h3, h4, h5, h6 {
  color: var(--color-heading);
  font-weight: var(--weight-bold);
  line-height: var(--leading-tight);
}

h1 { font-size: var(--text-5xl); }
h2 { font-size: var(--text-4xl); }
h3 { font-size: var(--text-2xl); }
h4 { font-size: var(--text-xl);  }
h5 { font-size: var(--text-lg);  }

p {
  margin-bottom: var(--space-4);
  color: var(--color-text);
}

strong {
  font-weight: var(--weight-semibold);
  color: var(--color-heading);
}

/* ---- Container ---- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}

/* ---- Sections ---- */
.section {
  padding-top: var(--section-gap);
  padding-bottom: var(--section-gap);
}

.section__label {
  display: inline-block;
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-primary);
  margin-bottom: var(--space-3);
}

.section__title {
  font-size: var(--text-4xl);
  margin-bottom: var(--space-4);
}

.section__subtitle {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  max-width: 640px;
  margin-bottom: var(--space-12);
}

.section--center {
  text-align: center;
}
.section--center .section__subtitle {
  margin-left: auto;
  margin-right: auto;
}

/* ---- Gradient Text ---- */
.gradient-text {
  background: linear-gradient(135deg, var(--color-cyan), var(--color-heading));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Dark body bg */
[data-theme="dark"] body {
  background-image:
    radial-gradient(ellipse at 20% 0%, rgba(0,212,255,0.04) 0%, transparent 60%),
    radial-gradient(ellipse at 80% 100%, rgba(255,107,53,0.03) 0%, transparent 60%);
}
[data-theme="dark"] .gradient-text {
  background: linear-gradient(135deg, var(--color-cyan), #FFFFFF);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ---- Divider ---- */
.divider {
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, var(--color-cyan), var(--color-orange));
  border: none;
  border-radius: var(--radius-full);
  margin-bottom: var(--space-8);
}
.section--center .divider {
  margin-left: auto;
  margin-right: auto;
}

/* ---- Scroll Reveal ---- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity var(--duration-slow) var(--ease-out),
              transform var(--duration-slow) var(--ease-out);
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---- Responsive Typography ---- */
@media (max-width: 768px) {
  h1 { font-size: var(--text-3xl); }
  h2 { font-size: var(--text-2xl); }
  h3 { font-size: var(--text-xl);  }

  .section {
    padding-top: var(--space-16);
    padding-bottom: var(--space-16);
  }

  .section__title {
    font-size: var(--text-2xl);
  }

  .section__subtitle {
    font-size: var(--text-base);
  }
}
/* ========================================
   SUNDERTECK — Components
   ======================================== */

/* ==== NAVBAR ==== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: var(--space-4) 0;
  transition: background var(--duration-normal) var(--ease-out),
              padding var(--duration-normal) var(--ease-out),
              box-shadow var(--duration-normal) var(--ease-out);
}
.navbar.is-scrolled {
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  padding: var(--space-3) 0;
  box-shadow: var(--shadow-lg);
}
[data-theme="dark"] .navbar.is-scrolled {
  background: rgba(11, 17, 32, 0.92);
}
.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.navbar__brand {
  font-size: var(--text-2xl);
  font-weight: var(--weight-extrabold);
  color: var(--color-heading);
  letter-spacing: -0.02em;
  display: flex;
  align-items: center;
}
.navbar__logo {
  width: 28px;
  height: 28px;
  min-width: 28px;
  min-height: 28px;
  max-width: 28px;
  max-height: 28px;
  flex-shrink: 0;
  display: inline-block;
  overflow: hidden;
  margin-right: 8px;
}
.navbar__brand span {
  color: var(--color-cyan);
}

.navbar__links {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}
.navbar__links a {
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--color-grey-600);
  transition: color var(--duration-fast) var(--ease-out);
  position: relative;
}
[data-theme="dark"] .navbar__links a {
  color: var(--color-grey-300);
}
.navbar__links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-cyan);
  transition: width var(--duration-normal) var(--ease-out);
}
.navbar__links a:hover,
.navbar__links a.active {
  color: var(--color-heading);
}
[data-theme="dark"] .navbar__links a:hover,
[data-theme="dark"] .navbar__links a.active {
  color: var(--color-white);
}
.navbar__links a:hover::after,
.navbar__links a.active::after {
  width: 100%;
}

.navbar__cta {
  margin-left: var(--space-4);
}
.navbar__cta.btn--primary {
  color: var(--color-white);
  font-weight: var(--weight-bold);
}
[data-theme="dark"] .navbar__cta.btn--primary {
  color: var(--color-navy);
}
.navbar__cta.btn--primary:hover {
  color: var(--color-white);
}
[data-theme="dark"] .navbar__cta.btn--primary:hover {
  color: var(--color-navy);
}

/* Hamburger */
.navbar__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 28px;
  padding: 0;
  background: none;
  border: none;
  cursor: pointer;
}
.navbar__toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-heading);
  border-radius: 2px;
  transition: transform var(--duration-normal) var(--ease-out),
              opacity var(--duration-fast) var(--ease-out);
}
.navbar__toggle.is-active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}
.navbar__toggle.is-active span:nth-child(2) {
  opacity: 0;
}
.navbar__toggle.is-active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

@media (max-width: 768px) {
  .navbar__toggle {
    display: flex;
  }
  .navbar__links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    flex-direction: column;
    align-items: flex-start;
    padding: var(--space-20) var(--space-8);
    gap: var(--space-6);
    background: var(--color-bg);
    border-left: var(--border-subtle);
    transition: right var(--duration-normal) var(--ease-out);
    box-shadow: var(--shadow-xl);
  }
  .navbar__links.is-open {
    right: 0;
  }
  .navbar__links a {
    font-size: var(--text-lg);
  }
  .navbar__cta {
    margin-left: 0;
    margin-top: var(--space-4);
  }
}

/* ==== THEME TOGGLE ==== */
.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border: none;
  border-radius: 50%;
  background: var(--color-surface-2);
  color: var(--color-heading);
  cursor: pointer;
  transition: background var(--duration-fast) var(--ease-out),
              transform var(--duration-fast) var(--ease-out);
  flex-shrink: 0;
}
.theme-toggle:hover {
  background: var(--color-cyan-glow);
  transform: scale(1.1);
}
.theme-toggle svg {
  width: 20px;
  height: 20px;
}
.theme-toggle .icon-sun  { display: none; }
.theme-toggle .icon-moon { display: block; }
[data-theme="dark"] .theme-toggle .icon-sun  { display: block; }
[data-theme="dark"] .theme-toggle .icon-moon { display: none; }

.theme-toggle--mobile {
  display: none;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--color-text);
  cursor: pointer;
  background: none;
  border: none;
  padding: var(--space-2) 0;
  margin-top: var(--space-2);
}
.theme-toggle--mobile svg {
  width: 20px;
  height: 20px;
  color: var(--color-heading);
}
.theme-toggle--mobile .icon-sun  { display: none; }
.theme-toggle--mobile .icon-moon { display: block; }
[data-theme="dark"] .theme-toggle--mobile .icon-sun  { display: block; }
[data-theme="dark"] .theme-toggle--mobile .icon-moon { display: none; }
.theme-toggle--mobile .toggle-label-light { display: inline; }
.theme-toggle--mobile .toggle-label-dark  { display: none; }
[data-theme="dark"] .theme-toggle--mobile .toggle-label-light { display: none; }
[data-theme="dark"] .theme-toggle--mobile .toggle-label-dark  { display: inline; }

@media (max-width: 768px) {
  .theme-toggle {
    display: none;
  }
  .theme-toggle--mobile {
    display: flex;
  }
}

/* ==== BUTTONS ==== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  border-radius: var(--radius-md);
  transition: all var(--duration-normal) var(--ease-out);
  white-space: nowrap;
}

.btn--primary {
  background: var(--color-cyan);
  color: var(--color-white);
}
[data-theme="dark"] .btn--primary {
  color: var(--color-navy);
}
.btn--primary:hover {
  background: var(--color-cyan-dark);
  color: var(--color-white);
  box-shadow: var(--shadow-glow);
  transform: translateY(-2px);
}
[data-theme="dark"] .btn--primary:hover {
  color: var(--color-navy);
}

.btn--secondary {
  background: transparent;
  color: var(--color-cyan);
  border: 1px solid var(--color-cyan);
}
.btn--secondary:hover {
  background: var(--color-cyan-glow);
  color: var(--color-heading);
  transform: translateY(-2px);
}

.btn--cta {
  background: linear-gradient(135deg, var(--color-orange), var(--color-orange-dark));
  color: var(--color-white);
}
.btn--cta:hover {
  box-shadow: var(--shadow-glow-orange);
  transform: translateY(-2px);
  color: var(--color-white);
}

.btn--lg {
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-base);
  border-radius: var(--radius-lg);
}

.btn--sm {
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-xs);
}

/* ==== CARDS ==== */
.card {
  background: var(--color-bg);
  border: 1px solid rgba(0,0,0,0.10);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  box-shadow: var(--shadow-md);
  transition: transform var(--duration-normal) var(--ease-out),
              box-shadow var(--duration-normal) var(--ease-out),
              border-color var(--duration-normal) var(--ease-out),
              background var(--duration-normal) var(--ease-out);
}
[data-theme="dark"] .card {
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: var(--glass-border);
  box-shadow: var(--shadow-sm);
}
.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(8,145,178,0.25);
}
[data-theme="dark"] .card:hover {
  border-color: rgba(0,212,255,0.15);
}

.card__icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-cyan-glow);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-5);
  font-size: var(--text-2xl);
  color: var(--color-cyan);
}
.card__icon svg {
  width: 28px;
  height: 28px;
}

.card__title {
  font-size: var(--text-xl);
  margin-bottom: var(--space-3);
}

.card__text {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: var(--leading-relaxed);
  margin-bottom: 0;
}

.card__link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--color-cyan);
  margin-top: var(--space-4);
  transition: gap var(--duration-fast) var(--ease-out);
}
.card__link:hover {
  gap: var(--space-3);
  color: var(--color-heading);
}

/* Cards Grid */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}
@media (max-width: 1024px) {
  .cards-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 640px) {
  .cards-grid {
    display: flex;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    scroll-padding-left: var(--space-6);
    gap: var(--space-4);
    padding-bottom: var(--space-4);
    -ms-overflow-style: none;
    scrollbar-width: none;
  }
  .cards-grid::-webkit-scrollbar {
    display: none;
  }
  .cards-grid > * {
    flex: 0 0 78%;
    scroll-snap-align: start;
    min-width: 0;
  }
}

/* ==== PRICING CARDS ==== */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
  align-items: stretch;
}

.pricing-card {
  background: var(--color-bg);
  border: 1px solid rgba(0,0,0,0.10);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  text-align: center;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-md);
  transition: transform var(--duration-normal) var(--ease-out),
              box-shadow var(--duration-normal) var(--ease-out);
}
[data-theme="dark"] .pricing-card {
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: var(--glass-border);
  box-shadow: none;
}
.pricing-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.pricing-card--popular {
  border: 1px solid var(--color-cyan);
  box-shadow: var(--shadow-glow);
  position: relative;
}
.pricing-card--popular::before {
  content: 'Más popular';
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, var(--color-cyan), var(--color-cyan-dark));
  color: var(--color-white);
  font-size: var(--text-xs);
  font-weight: var(--weight-bold);
  padding: var(--space-1) var(--space-4);
  border-radius: var(--radius-full);
  white-space: nowrap;
}
[data-theme="dark"] .pricing-card--popular::before {
  color: var(--color-navy);
}

.pricing-card__name {
  font-size: var(--text-lg);
  font-weight: var(--weight-semibold);
  color: var(--color-text-muted);
  margin-bottom: var(--space-4);
}

.pricing-card__price {
  font-size: var(--text-5xl);
  font-weight: var(--weight-extrabold);
  color: var(--color-heading);
  margin-bottom: var(--space-1);
}
.pricing-card__price span {
  font-size: var(--text-lg);
  font-weight: var(--weight-normal);
  color: var(--color-text-muted);
}

.pricing-card__period {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--space-6);
}

.pricing-card__features {
  text-align: left;
  margin-bottom: var(--space-8);
  flex: 1;
}
.pricing-card__features li {
  font-size: var(--text-sm);
  color: var(--color-text);
  padding: var(--space-2) 0;
  border-bottom: 1px solid rgba(0,0,0,0.06);
  display: flex;
  align-items: center;
  gap: var(--space-3);
}
[data-theme="dark"] .pricing-card__features li {
  border-bottom: 1px solid rgba(255,255,255,0.04);
}
.pricing-card__features li::before {
  content: '✓';
  color: var(--color-green);
  font-weight: var(--weight-bold);
  flex-shrink: 0;
}

.pricing-card .btn {
  width: 100%;
  margin-top: auto;
}

@media (max-width: 1024px) {
  .pricing-grid {
    display: flex;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    scroll-padding-left: var(--space-6);
    gap: var(--space-4);
    padding-bottom: var(--space-4);
    -ms-overflow-style: none;
    scrollbar-width: none;
  }
  .pricing-grid::-webkit-scrollbar {
    display: none;
  }
  .pricing-grid > * {
    flex: 0 0 78%;
    scroll-snap-align: start;
    min-width: 260px;
  }
}

/* ==== CONTACT FORM ==== */
.form {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
  max-width: 560px;
  width: 100%;
}

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

.form__label {
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--color-text);
}

.form__input,
.form__textarea {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  background: var(--color-surface);
  border: 1px solid rgba(0,0,0,0.10);
  border-radius: var(--radius-md);
  color: var(--color-heading);
  font-size: var(--text-sm);
  transition: border-color var(--duration-fast) var(--ease-out),
              box-shadow var(--duration-fast) var(--ease-out);
}
[data-theme="dark"] .form__input,
[data-theme="dark"] .form__textarea {
  border: 1px solid rgba(255,255,255,0.08);
  color: var(--color-white);
}
.form__input:focus,
.form__textarea:focus {
  border-color: var(--color-cyan);
  box-shadow: 0 0 0 3px var(--color-cyan-glow);
}
.form__input::placeholder,
.form__textarea::placeholder {
  color: var(--color-grey-400);
}

.form__textarea {
  resize: vertical;
  min-height: 120px;
}

/* ==== FOOTER ==== */
.footer {
  background: var(--color-surface);
  border-top: var(--border-subtle);
  padding: var(--space-16) 0 var(--space-8);
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: var(--space-12);
  margin-bottom: var(--space-12);
}

.footer__brand {
  font-size: var(--text-2xl);
  font-weight: var(--weight-extrabold);
  color: var(--color-heading);
  margin-bottom: var(--space-4);
}
.footer__brand span {
  color: var(--color-cyan);
}

.footer__desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  max-width: 320px;
  line-height: var(--leading-relaxed);
}

.footer__heading {
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  color: var(--color-heading);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-5);
}

.footer__list li {
  margin-bottom: var(--space-3);
}
.footer__list a {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}
.footer__list a:hover {
  color: var(--color-cyan);
}

.footer__bottom {
  border-top: var(--border-subtle);
  padding-top: var(--space-6);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

@media (max-width: 768px) {
  .footer__grid {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }
  .footer__bottom {
    flex-direction: column;
    gap: var(--space-3);
    text-align: center;
  }
}

/* ==== FAQ ACCORDION ==== */
.faq__item {
  border-bottom: var(--border-subtle);
}

.faq__question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-5) 0;
  font-size: var(--text-base);
  font-weight: var(--weight-medium);
  color: var(--color-heading);
  text-align: left;
  cursor: pointer;
  transition: color var(--duration-fast) var(--ease-out);
}
.faq__question:hover {
  color: var(--color-cyan);
}

.faq__icon {
  width: 24px;
  height: 24px;
  position: relative;
  flex-shrink: 0;
}
.faq__icon::before,
.faq__icon::after {
  content: '';
  position: absolute;
  background: var(--color-cyan);
  border-radius: 2px;
  transition: transform var(--duration-normal) var(--ease-out);
}
.faq__icon::before {
  width: 14px;
  height: 2px;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}
.faq__icon::after {
  width: 2px;
  height: 14px;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}
.faq__item.is-open .faq__icon::after {
  transform: translate(-50%, -50%) rotate(90deg);
}

.faq__answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--duration-normal) var(--ease-out),
              padding var(--duration-normal) var(--ease-out);
}
.faq__item.is-open .faq__answer {
  max-height: 300px;
  padding-bottom: var(--space-5);
}

.faq__answer p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: var(--leading-relaxed);
}

/* ==== VALUE PROPS ==== */
.value-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-8);
}
.value-item {
  text-align: center;
  padding: var(--space-8);
}
.value-item__icon {
  font-size: var(--text-4xl);
  margin-bottom: var(--space-5);
  color: var(--color-cyan);
}
.value-item__icon svg {
  width: 40px;
  height: 40px;
  margin: 0 auto;
}
.contact-info__icon svg {
  width: 22px;
  height: 22px;
}
.value-item__title {
  font-size: var(--text-lg);
  font-weight: var(--weight-semibold);
  color: var(--color-heading);
  margin-bottom: var(--space-3);
}
.value-item__text {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: var(--leading-relaxed);
  margin-bottom: 0;
}

@media (max-width: 768px) {
  .value-grid {
    display: flex;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    scroll-padding-left: var(--space-6);
    gap: var(--space-4);
    padding-bottom: var(--space-4);
    -ms-overflow-style: none;
    scrollbar-width: none;
  }
  .value-grid::-webkit-scrollbar {
    display: none;
  }
  .value-grid > * {
    flex: 0 0 78%;
    scroll-snap-align: start;
    min-width: 0;
  }
  .value-item {
    background: var(--color-bg);
    border: 1px solid rgba(0,0,0,0.10);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
  }
  [data-theme="dark"] .value-item {
    background: var(--glass-bg);
    border: var(--glass-border);
    box-shadow: var(--shadow-sm);
  }
}

/* ==== PROCESS STEPS ==== */
.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
  position: relative;
}
.process-grid::before {
  content: '';
  position: absolute;
  top: 36px;
  left: 10%;
  right: 10%;
  height: 2px;
  background: linear-gradient(90deg, var(--color-cyan), var(--color-orange));
  opacity: 0.3;
}

.process-step {
  text-align: center;
  position: relative;
}
.process-step__number {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-surface-2);
  border: 2px solid var(--color-cyan);
  border-radius: 50%;
  font-size: var(--text-lg);
  font-weight: var(--weight-bold);
  color: var(--color-cyan);
  margin: 0 auto var(--space-5);
  position: relative;
  z-index: 1;
}
.process-step__title {
  font-size: var(--text-base);
  font-weight: var(--weight-semibold);
  color: var(--color-heading);
  margin-bottom: var(--space-2);
}
.process-step__text {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-bottom: 0;
}

@media (max-width: 768px) {
  .process-grid {
    display: flex;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    scroll-padding-left: var(--space-6);
    gap: var(--space-4);
    padding-bottom: var(--space-4);
    -ms-overflow-style: none;
    scrollbar-width: none;
  }
  .process-grid::-webkit-scrollbar {
    display: none;
  }
  .process-grid > * {
    flex: 0 0 72%;
    scroll-snap-align: start;
    min-width: 0;
  }
  .process-grid::before {
    display: none;
  }
}
@media (max-width: 480px) {
  .process-grid > * {
    flex: 0 0 78%;
  }
}

/* ==== STAGGER ANIMATION ==== */
.stagger > * {
  transition-delay: calc(var(--i, 0) * 100ms);
}

/* ==== SCROLL HINT (mobile affordance) ==== */
.scroll-hint {
  position: relative;
}
.scroll-hint::after {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: 48px;
  background: linear-gradient(to left, var(--color-bg), transparent);
  pointer-events: none;
  z-index: 2;
  opacity: 1;
  transition: opacity var(--duration-fast) var(--ease-out);
}
.scroll-hint.is-end::after {
  opacity: 0;
}

/* ==== OVERLAY (mobile nav) ==== */
.overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 999;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--duration-normal) var(--ease-out);
}
.overlay.is-visible {
  opacity: 1;
  pointer-events: auto;
}

/* ==== BACK TO TOP ==== */
.back-to-top {
  position: fixed;
  bottom: var(--space-8);
  right: var(--space-8);
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-cyan);
  color: var(--color-white);
  border: none;
  border-radius: 50%;
  cursor: pointer;
  z-index: 900;
  opacity: 0;
  transform: translateY(20px);
  pointer-events: none;
  transition: opacity var(--duration-normal) var(--ease-out),
              transform var(--duration-normal) var(--ease-out),
              box-shadow var(--duration-fast) var(--ease-out);
  box-shadow: var(--shadow-md);
}
[data-theme="dark"] .back-to-top {
  color: var(--color-navy);
}
.back-to-top.is-visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}
.back-to-top:hover {
  box-shadow: var(--shadow-glow);
  transform: translateY(-3px);
}
.back-to-top svg {
  width: 22px;
  height: 22px;
}

/* ==== TOAST ==== */
.toast {
  position: fixed;
  top: var(--space-8);
  right: var(--space-8);
  min-width: 320px;
  max-width: 420px;
  padding: var(--space-5) var(--space-6);
  background: var(--color-surface);
  border: var(--glass-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-xl);
  z-index: 2000;
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
  transform: translateX(120%);
  transition: transform var(--duration-normal) var(--ease-out);
}
.toast.is-visible {
  transform: translateX(0);
}
.toast__icon {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
  margin-top: 2px;
}
.toast--success .toast__icon {
  color: var(--color-green);
}
.toast--error .toast__icon {
  color: var(--color-red);
}
.toast--success {
  border-left: 3px solid var(--color-green);
}
.toast--error {
  border-left: 3px solid var(--color-red);
}
.toast__content {
  flex: 1;
}
.toast__title {
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  color: var(--color-heading);
  margin-bottom: var(--space-1);
}
.toast__message {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin-bottom: 0;
}
.toast__close {
  width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-grey-500);
  cursor: pointer;
  flex-shrink: 0;
  font-size: var(--text-lg);
  line-height: 1;
}
.toast__close:hover {
  color: var(--color-heading);
}
@media (max-width: 480px) {
  .toast {
    left: var(--space-4);
    right: var(--space-4);
    min-width: auto;
  }
}

/* ==== FORM VALIDATION ==== */
.form__input.is-error,
.form__textarea.is-error {
  border-color: var(--color-red);
  box-shadow: 0 0 0 3px rgba(239,68,68,0.15);
}
.form__error {
  font-size: var(--text-xs);
  color: var(--color-red);
  margin-top: var(--space-1);
  display: none;
}
.form__group.has-error .form__error {
  display: block;
}

/* ==== STICKY CTA (mobile) ==== */
.sticky-cta {
  display: none;
}

@media (max-width: 768px) {
  .sticky-cta {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 950;
    padding: var(--space-3) var(--space-4);
    background: var(--color-bg);
    border-top: var(--border-subtle);
    box-shadow: 0 -4px 20px rgba(0,0,0,0.08);
    display: flex;
    align-items: center;
    gap: var(--space-3);
    transform: translateY(100%);
    transition: transform var(--duration-normal) var(--ease-out);
  }
  [data-theme="dark"] .sticky-cta {
    box-shadow: 0 -4px 20px rgba(0,0,0,0.3);
  }
  .sticky-cta.is-visible {
    transform: translateY(0);
  }
  .sticky-cta__text {
    flex: 1;
    font-size: var(--text-sm);
    font-weight: var(--weight-medium);
    color: var(--color-heading);
    line-height: var(--leading-tight);
  }
  .sticky-cta__text span {
    display: block;
    font-size: var(--text-xs);
    font-weight: var(--weight-normal);
    color: var(--color-text-muted);
    margin-top: 2px;
  }
  .sticky-cta .btn {
    flex-shrink: 0;
  }
  .sticky-cta__close {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: none;
    border: none;
    color: var(--color-text-muted);
    cursor: pointer;
    flex-shrink: 0;
    font-size: var(--text-base);
    line-height: 1;
    padding: 0;
  }
  .sticky-cta__close:hover {
    color: var(--color-heading);
  }
}
/* ========================================
   SUNDERTECK — Page-Specific Styles
   ======================================== */

/* ==== HERO (shared) ==== */
.hero {
  min-height: 90vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding-top: 80px; /* navbar offset */
}

.hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero__bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 30% 40%, rgba(8,145,178,0.06) 0%, transparent 50%),
    radial-gradient(circle at 70% 60%, rgba(255,107,53,0.04) 0%, transparent 50%);
}
[data-theme="dark"] .hero__bg::before {
  background:
    radial-gradient(circle at 30% 40%, rgba(0,212,255,0.08) 0%, transparent 50%),
    radial-gradient(circle at 70% 60%, rgba(255,107,53,0.05) 0%, transparent 50%);
}
.hero__bg::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 200px;
  background: linear-gradient(to top, var(--color-bg), transparent);
}

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

.hero__content {
  max-width: 720px;
}

.hero__title {
  font-size: var(--text-6xl);
  font-weight: var(--weight-extrabold);
  margin-bottom: var(--space-6);
  line-height: 1.1;
}
.hero__title .highlight {
  background: linear-gradient(135deg, var(--color-cyan), #0F172A);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
[data-theme="dark"] .hero__title .highlight {
  background: linear-gradient(135deg, #00D4FF, #7dd3fc);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__text {
  font-size: var(--text-xl);
  color: var(--color-text);
  max-width: 560px;
  margin-bottom: var(--space-8);
  line-height: var(--leading-relaxed);
}

.hero__actions {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
}

/* Floating shapes behind hero */
.hero__shapes {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}
.hero__shape {
  position: absolute;
  border-radius: 50%;
  opacity: 0.06;
  animation: float 20s infinite ease-in-out;
}
.hero__shape--1 {
  width: 400px;
  height: 400px;
  background: var(--color-cyan);
  top: -100px;
  right: -100px;
  animation-delay: 0s;
}
.hero__shape--2 {
  width: 300px;
  height: 300px;
  background: var(--color-orange);
  bottom: -50px;
  left: -80px;
  animation-delay: 5s;
}
.hero__shape--3 {
  width: 200px;
  height: 200px;
  background: var(--color-cyan);
  top: 40%;
  right: 20%;
  animation-delay: 10s;
}

@keyframes float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  25%      { transform: translate(20px, -30px) scale(1.05); }
  50%      { transform: translate(-10px, 20px) scale(0.95); }
  75%      { transform: translate(15px, 10px) scale(1.03); }
}

@media (max-width: 768px) {
  .hero {
    min-height: 80vh;
    padding-top: 70px;
  }
  .hero__title {
    font-size: var(--text-3xl);
  }
  .hero__text {
    font-size: var(--text-base);
  }
}

/* ==== HOME — Services grid ==== */
.home-services .cards-grid {
  grid-template-columns: repeat(3, 1fr);
}

@media (min-width: 1025px) {
  .home-services .cards-grid--5 {
    grid-template-columns: repeat(3, 1fr);
  }
  .home-services .cards-grid--5 .card:nth-child(4),
  .home-services .cards-grid--5 .card:nth-child(5) {
    max-width: 380px;
  }
  .home-services .cards-grid--5 {
    justify-items: center;
  }
}
@media (max-width: 1024px) {
  .home-services .cards-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 640px) {
  .home-services .cards-grid {
    display: flex;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    scroll-padding-left: var(--space-6);
    gap: var(--space-4);
    padding-bottom: var(--space-4);
  }
  .home-services .cards-grid > * {
    flex: 0 0 78%;
    scroll-snap-align: start;
  }
}

/* ==== HOME — Contact ==== */
.contact-section {
  position: relative;
}
.contact-section__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-12);
  align-items: start;
}
.contact-info__item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}
.contact-info__icon {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-cyan-glow);
  border-radius: var(--radius-md);
  font-size: var(--text-xl);
  flex-shrink: 0;
}
.contact-info__label {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--space-1);
}
.contact-info__value {
  font-size: var(--text-base);
  color: var(--color-heading);
  font-weight: var(--weight-medium);
  margin-bottom: 0;
}

@media (max-width: 768px) {
  .contact-section__grid {
    display: flex;
    flex-direction: column-reverse;
    gap: var(--space-8);
  }
}

/* ==== SERVICE PAGES — Hero variant ==== */
.hero--service {
  min-height: 60vh;
}
.hero--service .hero__title {
  font-size: var(--text-5xl);
}
@media (max-width: 768px) {
  .hero--service .hero__title {
    font-size: var(--text-2xl);
  }
  .hero--service {
    min-height: 50vh;
  }
}

/* ==== SERVICE PAGES — Features ==== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}
@media (max-width: 768px) {
  .features-grid {
    display: flex;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    scroll-padding-left: var(--space-6);
    gap: var(--space-4);
    padding-bottom: var(--space-4);
    -ms-overflow-style: none;
    scrollbar-width: none;
  }
  .features-grid::-webkit-scrollbar {
    display: none;
  }
  .features-grid > * {
    flex: 0 0 78%;
    scroll-snap-align: start;
    min-width: 0;
  }
}

/* ==== CTA BANNER ==== */
.cta-banner {
  text-align: center;
  padding: var(--space-16) 0;
  background: linear-gradient(135deg, rgba(8,145,178,0.06), rgba(255,107,53,0.04));
  border-top: var(--border-subtle);
  border-bottom: var(--border-subtle);
}
[data-theme="dark"] .cta-banner {
  background: linear-gradient(135deg, rgba(0,212,255,0.06), rgba(255,107,53,0.04));
}
.cta-banner__title {
  font-size: var(--text-3xl);
  margin-bottom: var(--space-4);
}
.cta-banner__text {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  max-width: 560px;
  margin: 0 auto var(--space-8);
}