/* ============================================
   DBS Communications — Main Stylesheet
   Voice and Data Specialists
   ============================================ */

/* --- CSS Custom Properties (Theming) --- */
:root {
  /* Brand Colors */
  --color-primary: #1A5DAB;
  --color-primary-dark: #144A88;
  --color-primary-light: #3B7FCC;
  --color-primary-subtle: #E8F0FA;
  --color-accent: #E8922E;
  --color-accent-dark: #CF7E1F;
  --color-accent-light: #F5A94D;

  /* Light Theme (default) */
  --color-bg: #FAFBFD;
  --color-bg-alt: #F0F4F8;
  --color-surface: #FFFFFF;
  --color-surface-raised: #FFFFFF;
  --color-text: #1C2B3A;
  --color-text-secondary: #4A6178;
  --color-text-muted: #7A8FA3;
  --color-heading: #0F2137;
  --color-border: #DAE2EC;
  --color-border-light: #EAF0F6;
  --color-shadow: rgba(26, 93, 171, 0.08);
  --color-shadow-lg: rgba(26, 93, 171, 0.12);
  --color-overlay: rgba(15, 33, 55, 0.5);
  --color-success: #1A8754;
  --color-error: #C53030;

  /* Typography */
  --font-heading: 'DM Sans', system-ui, -apple-system, sans-serif;
  --font-body: 'Inter', system-ui, -apple-system, sans-serif;
  --font-size-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.8125rem);
  --font-size-sm: clamp(0.8125rem, 0.77rem + 0.25vw, 0.875rem);
  --font-size-base: clamp(0.9375rem, 0.88rem + 0.3vw, 1rem);
  --font-size-md: clamp(1rem, 0.92rem + 0.4vw, 1.125rem);
  --font-size-lg: clamp(1.125rem, 1rem + 0.5vw, 1.25rem);
  --font-size-xl: clamp(1.25rem, 1.1rem + 0.75vw, 1.5rem);
  --font-size-2xl: clamp(1.5rem, 1.2rem + 1.5vw, 2rem);
  --font-size-3xl: clamp(1.875rem, 1.4rem + 2.4vw, 2.75rem);
  --font-size-4xl: clamp(2.25rem, 1.6rem + 3.2vw, 3.5rem);

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;
  --space-5xl: 8rem;

  /* Layout */
  --max-width: 1200px;
  --max-width-narrow: 800px;
  --header-height: 80px;
  --border-radius: 10px;
  --border-radius-sm: 6px;
  --border-radius-lg: 16px;
  --border-radius-full: 9999px;

  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-base: 0.25s ease;
  --transition-slow: 0.4s ease;
  --transition-theme: 0.3s ease;
}

/* --- Dark Theme --- */
[data-theme="dark"] {
  --color-primary: #4A9AE8;
  --color-primary-dark: #3A82CC;
  --color-primary-light: #6DB2F5;
  --color-primary-subtle: #1A2A3E;
  --color-accent: #F5A94D;
  --color-accent-dark: #E8922E;
  --color-accent-light: #FFBE6D;

  --color-bg: #0F1419;
  --color-bg-alt: #161C24;
  --color-surface: #1C2530;
  --color-surface-raised: #222E3C;
  --color-text: #E0E6ED;
  --color-text-secondary: #9DAFC0;
  --color-text-muted: #6B7F93;
  --color-heading: #F0F4F8;
  --color-border: #2A3744;
  --color-border-light: #1E2A36;
  --color-shadow: rgba(0, 0, 0, 0.25);
  --color-shadow-lg: rgba(0, 0, 0, 0.4);
  --color-overlay: rgba(0, 0, 0, 0.6);
  --color-success: #2ECC71;
  --color-error: #E74C3C;
}

/* --- Theme Transition --- */
html,
html *,
html *::before,
html *::after {
  transition:
    background-color var(--transition-theme),
    color var(--transition-theme),
    border-color var(--transition-theme),
    box-shadow var(--transition-theme);
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  scroll-padding-top: var(--header-height);
}

body {
  font-family: var(--font-body);
  font-size: var(--font-size-base);
  line-height: 1.7;
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

input,
button,
textarea,
select {
  font: inherit;
  color: inherit;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-primary-dark);
}

ul,
ol {
  list-style: none;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--color-heading);
  line-height: 1.2;
  font-weight: 700;
  letter-spacing: -0.02em;
}

h1 { font-size: var(--font-size-4xl); }
h2 { font-size: var(--font-size-3xl); }
h3 { font-size: var(--font-size-2xl); }
h4 { font-size: var(--font-size-xl); }
h5 { font-size: var(--font-size-lg); }
h6 { font-size: var(--font-size-md); }

p {
  margin-bottom: var(--space-md);
}

p:last-child {
  margin-bottom: 0;
}

/* --- Skip Link --- */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-md);
  padding: var(--space-sm) var(--space-md);
  background: var(--color-primary);
  color: #FFFFFF;
  border-radius: var(--border-radius-sm);
  font-weight: 600;
  z-index: 10000;
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: var(--space-md);
  color: #FFFFFF;
}

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

.container--narrow {
  max-width: var(--max-width-narrow);
}

/* --- Header --- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border-light);
  z-index: 1000;
  display: flex;
  align-items: center;
  box-shadow: 0 1px 3px var(--color-shadow);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.header__logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.header__logo img {
  height: 44px;
  width: auto;
}

.header__nav {
  display: none;
  align-items: center;
  gap: var(--space-xl);
}

.header__nav-link {
  font-family: var(--font-heading);
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: var(--space-xs) 0;
  position: relative;
  transition: color var(--transition-fast);
}

.header__nav-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-primary);
  border-radius: 1px;
  transition: width var(--transition-base);
}

.header__nav-link:hover,
.header__nav-link--active {
  color: var(--color-primary);
}

.header__nav-link:hover::after,
.header__nav-link--active::after {
  width: 100%;
}

.header__actions {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

/* Theme Toggle */
.theme-toggle {
  background: none;
  border: 2px solid var(--color-border);
  border-radius: var(--border-radius-full);
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--color-text-secondary);
  transition: all var(--transition-fast);
  flex-shrink: 0;
}

.theme-toggle:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: var(--color-primary-subtle);
}

.theme-toggle:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.theme-toggle__icon {
  width: 20px;
  height: 20px;
  transition: transform var(--transition-base);
}

.theme-toggle:hover .theme-toggle__icon {
  transform: rotate(15deg);
}

.theme-toggle__sun,
.theme-toggle__moon {
  display: none;
}

[data-theme="light"] .theme-toggle__moon,
:root:not([data-theme]) .theme-toggle__moon {
  display: block;
}

[data-theme="dark"] .theme-toggle__sun {
  display: block;
}

/* Mobile Menu Button */
.mobile-menu-btn {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 44px;
  height: 44px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-sm);
  gap: 5px;
}

.mobile-menu-btn__line {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: all var(--transition-base);
}

.mobile-menu-btn--open .mobile-menu-btn__line:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-btn--open .mobile-menu-btn__line:nth-child(2) {
  opacity: 0;
}

.mobile-menu-btn--open .mobile-menu-btn__line:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile Navigation */
.mobile-nav {
  position: fixed;
  top: var(--header-height);
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--color-surface);
  z-index: 999;
  display: flex;
  flex-direction: column;
  padding: var(--space-2xl) var(--space-lg);
  transform: translateX(100%);
  transition: transform var(--transition-slow);
  overflow-y: auto;
}

.mobile-nav--open {
  transform: translateX(0);
}

.mobile-nav__link {
  font-family: var(--font-heading);
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-heading);
  padding: var(--space-md) 0;
  border-bottom: 1px solid var(--color-border-light);
  display: block;
  transition: color var(--transition-fast);
}

.mobile-nav__link:hover,
.mobile-nav__link--active {
  color: var(--color-primary);
}

.mobile-nav__cta {
  margin-top: var(--space-2xl);
}

.mobile-nav__phone {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-family: var(--font-heading);
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--color-primary);
  margin-top: var(--space-xl);
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 0.8125rem 1.75rem;
  font-family: var(--font-heading);
  font-size: var(--font-size-sm);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  border-radius: var(--border-radius);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
  white-space: nowrap;
  min-height: 48px;
}

.btn:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.btn--primary {
  background: var(--color-primary);
  color: #FFFFFF;
  border-color: var(--color-primary);
}

.btn--primary:hover {
  background: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  color: #FFFFFF;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px var(--color-shadow-lg);
}

.btn--primary:active {
  transform: translateY(0);
}

.btn--accent {
  background: var(--color-accent);
  color: #FFFFFF;
  border-color: var(--color-accent);
}

.btn--accent:hover {
  background: var(--color-accent-dark);
  border-color: var(--color-accent-dark);
  color: #FFFFFF;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(232, 146, 46, 0.3);
}

.btn--outline {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.btn--outline:hover {
  background: var(--color-primary);
  color: #FFFFFF;
  transform: translateY(-1px);
}

.btn--ghost {
  background: transparent;
  color: var(--color-text);
  border-color: transparent;
  padding: 0.5rem 1rem;
}

.btn--ghost:hover {
  background: var(--color-bg-alt);
  color: var(--color-primary);
}

.btn--sm {
  padding: 0.5rem 1.25rem;
  font-size: var(--font-size-xs);
  min-height: 40px;
}

.btn--lg {
  padding: 1rem 2.25rem;
  font-size: var(--font-size-base);
  min-height: 56px;
}

.btn__icon {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

/* --- Hero Section --- */
.hero {
  padding: calc(var(--header-height) + var(--space-4xl)) 0 var(--space-4xl);
  position: relative;
  overflow: hidden;
}

.hero--home {
  padding-bottom: var(--space-5xl);
  background: linear-gradient(
    170deg,
    var(--color-primary-subtle) 0%,
    var(--color-bg) 60%
  );
}

.hero--home::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 80%;
  height: 160%;
  background: radial-gradient(
    ellipse at center,
    var(--color-primary-subtle) 0%,
    transparent 70%
  );
  opacity: 0.5;
  pointer-events: none;
}

.hero__inner {
  position: relative;
  z-index: 1;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-xs) var(--space-md);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-full);
  font-size: var(--font-size-xs);
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: var(--space-xl);
}

.hero__badge-dot {
  width: 8px;
  height: 8px;
  background: var(--color-success);
  border-radius: 50%;
  flex-shrink: 0;
}

.hero__title {
  margin-bottom: var(--space-lg);
  max-width: 720px;
}

.hero__title span {
  color: var(--color-primary);
}

.hero__subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  max-width: 600px;
  margin-bottom: var(--space-2xl);
  line-height: 1.8;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  margin-bottom: var(--space-2xl);
}

.hero__trust {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-lg);
  padding-top: var(--space-xl);
  border-top: 1px solid var(--color-border-light);
}

.hero__trust-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

.hero__trust-icon {
  width: 20px;
  height: 20px;
  color: var(--color-primary);
  flex-shrink: 0;
}

/* --- Section Base --- */
.section {
  padding: var(--space-4xl) 0;
}

.section--alt {
  background: var(--color-bg-alt);
}

.section--primary {
  background: var(--color-primary);
  color: #FFFFFF;
}

.section--primary h2,
.section--primary h3,
.section--primary p {
  color: #FFFFFF;
}

.section--primary p {
  opacity: 0.9;
}

.section__header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto var(--space-3xl);
}

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

.section--primary .section__label {
  color: var(--color-accent-light);
}

.section__title {
  margin-bottom: var(--space-md);
}

.section__subtitle {
  font-size: var(--font-size-md);
  color: var(--color-text-secondary);
  line-height: 1.8;
}

.section--primary .section__subtitle {
  color: rgba(255, 255, 255, 0.85);
}

/* --- Grid System --- */
.grid {
  display: grid;
  gap: var(--space-xl);
}

.grid--2 { grid-template-columns: 1fr; }
.grid--3 { grid-template-columns: 1fr; }
.grid--4 { grid-template-columns: 1fr; }

/* --- Card --- */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border-light);
  border-radius: var(--border-radius-lg);
  padding: var(--space-2xl);
  transition: all var(--transition-base);
}

.card:hover {
  box-shadow: 0 8px 30px var(--color-shadow-lg);
  transform: translateY(-2px);
}

.card__icon {
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary-subtle);
  color: var(--color-primary);
  border-radius: var(--border-radius);
  margin-bottom: var(--space-lg);
}

.card__icon svg {
  width: 26px;
  height: 26px;
}

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

.card__text {
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  line-height: 1.7;
}

.card__link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  margin-top: var(--space-lg);
  font-weight: 600;
  font-size: var(--font-size-sm);
  color: var(--color-primary);
}

.card__link svg {
  width: 16px;
  height: 16px;
  transition: transform var(--transition-fast);
}

.card__link:hover svg {
  transform: translateX(3px);
}

/* --- Service Detail Card --- */
.service-detail {
  padding: var(--space-3xl) 0;
  border-bottom: 1px solid var(--color-border-light);
  max-width: 48rem;
  margin: 0 auto;
}

.service-detail:last-child {
  border-bottom: none;
}

.service-detail__content {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.service-detail__label {
  font-family: var(--font-heading);
  font-size: var(--font-size-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-primary);
}

.service-detail__title {
  font-size: var(--font-size-2xl);
}

.service-detail__text {
  color: var(--color-text-secondary);
  line-height: 1.8;
}

.service-detail__features {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  margin-top: var(--space-sm);
}

.service-detail__feature {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.service-detail__feature svg {
  width: 20px;
  height: 20px;
  color: var(--color-success);
  flex-shrink: 0;
  margin-top: 2px;
}

/* --- Testimonials --- */
.testimonials-grid {
  display: grid;
  gap: var(--space-xl);
}

.testimonial {
  background: var(--color-surface);
  border: 1px solid var(--color-border-light);
  border-radius: var(--border-radius-lg);
  padding: var(--space-2xl);
  position: relative;
}

.testimonial__stars {
  display: flex;
  gap: 2px;
  margin-bottom: var(--space-md);
  color: var(--color-accent);
}

.testimonial__stars svg {
  width: 18px;
  height: 18px;
  fill: currentColor;
}

.testimonial__quote {
  font-size: var(--font-size-md);
  line-height: 1.8;
  color: var(--color-text);
  margin-bottom: var(--space-lg);
  font-style: italic;
}

.testimonial__author {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.testimonial__avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--color-primary-subtle);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: var(--font-size-md);
  flex-shrink: 0;
}

.testimonial__name {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: var(--font-size-sm);
  color: var(--color-heading);
}

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

/* --- Stats --- */
.stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-xl);
}

.stat {
  text-align: center;
  padding: var(--space-lg);
}

.stat__number {
  font-family: var(--font-heading);
  font-size: var(--font-size-3xl);
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1;
  margin-bottom: var(--space-xs);
}

.section--primary .stat__number {
  color: #FFFFFF;
}

.stat__label {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.section--primary .stat__label {
  color: rgba(255, 255, 255, 0.8);
}

/* --- CTA Section --- */
.cta-section {
  text-align: center;
  padding: var(--space-4xl) 0;
}

.cta-section__title {
  margin-bottom: var(--space-md);
}

.cta-section__text {
  font-size: var(--font-size-md);
  max-width: 600px;
  margin: 0 auto var(--space-2xl);
  opacity: 0.9;
}

.cta-section__actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-md);
}

.cta-section__phone {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  margin-top: var(--space-lg);
  font-family: var(--font-heading);
  font-size: var(--font-size-lg);
  font-weight: 700;
}

.cta-section__phone a {
  color: inherit;
}

.section--primary .cta-section__phone a {
  color: #FFFFFF;
}

/* --- About Page --- */
.about-story {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
  max-width: 48rem;
  margin: 0 auto;
}

.about-story__content {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.about-story__text {
  color: var(--color-text-secondary);
  line-height: 1.8;
  font-size: 1.05rem;
}

/* Certifications */
.certs {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-md);
}

.cert {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-lg);
  background: var(--color-surface);
  border: 1px solid var(--color-border-light);
  border-radius: var(--border-radius);
}

.cert__icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary-subtle);
  color: var(--color-primary);
  border-radius: var(--border-radius-sm);
  flex-shrink: 0;
}

.cert__icon svg {
  width: 20px;
  height: 20px;
}

.cert__text {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-heading);
}

/* Pledge */
.pledge {
  background: var(--color-primary-subtle);
  border-radius: var(--border-radius-lg);
  padding: var(--space-3xl);
  border-left: 4px solid var(--color-primary);
}

.pledge__quote {
  font-size: var(--font-size-lg);
  font-style: italic;
  color: var(--color-text);
  line-height: 1.8;
  margin-bottom: var(--space-lg);
}

.pledge__author {
  font-family: var(--font-heading);
  font-weight: 700;
  color: var(--color-primary);
}

/* --- Contact Page --- */
.contact-grid {
  display: grid;
  gap: var(--space-2xl);
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: var(--space-xl);
}

.contact-info__item {
  display: flex;
  gap: var(--space-md);
}

.contact-info__icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary-subtle);
  color: var(--color-primary);
  border-radius: var(--border-radius);
  flex-shrink: 0;
}

.contact-info__icon svg {
  width: 22px;
  height: 22px;
}

.contact-info__label {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: var(--font-size-sm);
  color: var(--color-heading);
  margin-bottom: var(--space-xs);
}

.contact-info__text {
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  line-height: 1.6;
}

.contact-info__text a {
  color: var(--color-primary);
  font-weight: 600;
}

/* --- Forms --- */
.form {
  background: var(--color-surface);
  border: 1px solid var(--color-border-light);
  border-radius: var(--border-radius-lg);
  padding: var(--space-2xl);
}

.form__title {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-xs);
}

.form__subtitle {
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  margin-bottom: var(--space-xl);
}

.form__group {
  margin-bottom: var(--space-lg);
}

.form__label {
  display: block;
  font-family: var(--font-heading);
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-heading);
  margin-bottom: var(--space-sm);
}

.form__label--required::after {
  content: ' *';
  color: var(--color-error);
}

.form__input,
.form__select,
.form__textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  background: var(--color-bg);
  border: 1.5px solid var(--color-border);
  border-radius: var(--border-radius-sm);
  font-size: var(--font-size-base);
  color: var(--color-text);
  transition: all var(--transition-fast);
  min-height: 48px;
}

.form__input:focus,
.form__select:focus,
.form__textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-subtle);
}

.form__input::placeholder,
.form__textarea::placeholder {
  color: var(--color-text-muted);
}

.form__input--error {
  border-color: var(--color-error);
}

.form__error {
  font-size: var(--font-size-xs);
  color: var(--color-error);
  margin-top: var(--space-xs);
  display: none;
}

.form__error--visible {
  display: block;
}

.form__textarea {
  min-height: 140px;
  resize: vertical;
}

.form__row {
  display: grid;
  gap: var(--space-lg);
}

.form__consent {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: 1.5;
  cursor: pointer;
}

.form__consent input[type="checkbox"] {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  accent-color: var(--color-primary);
  cursor: pointer;
}

.form__success {
  display: none;
  text-align: center;
  padding: var(--space-2xl);
}

.form__success--visible {
  display: block;
}

.form__success-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto var(--space-lg);
  background: var(--color-success);
  color: #FFFFFF;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.form__success-icon svg {
  width: 32px;
  height: 32px;
}

/* --- Footer --- */
.footer {
  background: var(--color-surface);
  border-top: 1px solid var(--color-border-light);
  padding: var(--space-3xl) 0 var(--space-xl);
}

.footer__grid {
  display: grid;
  gap: var(--space-2xl);
  margin-bottom: var(--space-2xl);
}

.footer__brand {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.footer__logo img {
  height: 40px;
  width: auto;
}

.footer__tagline {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  max-width: 300px;
  line-height: 1.7;
}

.footer__heading {
  font-family: var(--font-heading);
  font-size: var(--font-size-sm);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-heading);
  margin-bottom: var(--space-lg);
}

.footer__links {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.footer__link {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
  padding: var(--space-xs) 0;
}

.footer__link:hover {
  color: var(--color-primary);
}

.footer__contact-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-sm);
}

.footer__contact-item svg {
  width: 16px;
  height: 16px;
  color: var(--color-primary);
  flex-shrink: 0;
}

.footer__bottom {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  padding-top: var(--space-xl);
  border-top: 1px solid var(--color-border-light);
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

.footer__bottom-links {
  display: flex;
  gap: var(--space-lg);
}

.footer__bottom-link {
  color: var(--color-text-muted);
  font-size: var(--font-size-xs);
}

.footer__bottom-link:hover {
  color: var(--color-primary);
}

/* --- Cookie Banner --- */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  padding: var(--space-lg);
  z-index: 9999;
  box-shadow: 0 -4px 20px var(--color-shadow-lg);
  transform: translateY(100%);
  transition: transform var(--transition-slow);
}

.cookie-banner--visible {
  transform: translateY(0);
}

.cookie-banner__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  align-items: flex-start;
}

.cookie-banner__text {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: 1.6;
}

.cookie-banner__text a {
  font-weight: 600;
}

.cookie-banner__actions {
  display: flex;
  gap: var(--space-sm);
  flex-shrink: 0;
}

/* --- 404 Page --- */
.error-page {
  min-height: calc(100vh - var(--header-height));
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--space-4xl) var(--space-lg);
}

.error-page__code {
  font-family: var(--font-heading);
  font-size: clamp(5rem, 15vw, 10rem);
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1;
  opacity: 0.15;
  margin-bottom: var(--space-md);
}

.error-page__title {
  font-size: var(--font-size-2xl);
  margin-bottom: var(--space-md);
}

.error-page__text {
  color: var(--color-text-secondary);
  max-width: 480px;
  margin: 0 auto var(--space-2xl);
}

/* --- Page Hero (Inner pages) --- */
.page-hero {
  padding: calc(var(--header-height) + var(--space-3xl)) 0 var(--space-3xl);
  background: var(--color-bg-alt);
  text-align: center;
}

.page-hero__breadcrumb {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--space-lg);
}

.page-hero__breadcrumb a {
  color: var(--color-text-muted);
}

.page-hero__breadcrumb a:hover {
  color: var(--color-primary);
}

.page-hero__breadcrumb-sep {
  color: var(--color-border);
}

.page-hero__title {
  margin-bottom: var(--space-md);
}

.page-hero__subtitle {
  font-size: var(--font-size-md);
  color: var(--color-text-secondary);
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.8;
}

/* --- Scroll Animations --- */
@media (prefers-reduced-motion: no-preference) {
  .animate-on-scroll {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s ease, transform 0.6s ease;
  }

  .animate-on-scroll--visible {
    opacity: 1;
    transform: translateY(0);
  }

  .animate-on-scroll--delay-1 { transition-delay: 0.1s; }
  .animate-on-scroll--delay-2 { transition-delay: 0.2s; }
  .animate-on-scroll--delay-3 { transition-delay: 0.3s; }
  .animate-on-scroll--delay-4 { transition-delay: 0.4s; }
}

@media (prefers-reduced-motion: reduce) {
  .animate-on-scroll {
    opacity: 1;
    transform: none;
  }
}

/* --- Responsive: sm (640px) --- */
@media (min-width: 640px) {
  .grid--2 { grid-template-columns: repeat(2, 1fr); }
  .stats { grid-template-columns: repeat(4, 1fr); }
  .form__row { grid-template-columns: repeat(2, 1fr); }
  .testimonials-grid { grid-template-columns: repeat(2, 1fr); }
  .certs { grid-template-columns: repeat(2, 1fr); }
  .cookie-banner__inner { flex-direction: row; align-items: center; }

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

  .footer__bottom {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }
}

/* --- Responsive: md (768px) --- */
@media (min-width: 768px) {
  .grid--3 { grid-template-columns: repeat(2, 1fr); }
  .service-detail { max-width: 48rem; margin: 0 auto; }
  .about-story { max-width: 48rem; margin: 0 auto; }
  .contact-grid { grid-template-columns: 1fr 1fr; }

  .hero__title {
    max-width: 800px;
  }
}

/* --- Responsive: lg (1024px) --- */
@media (min-width: 1024px) {
  .header__nav {
    display: flex;
  }

  .mobile-menu-btn {
    display: none;
  }

  .grid--3 { grid-template-columns: repeat(3, 1fr); }
  .grid--4 { grid-template-columns: repeat(4, 1fr); }
  .testimonials-grid { grid-template-columns: repeat(3, 1fr); }
  .certs { grid-template-columns: repeat(3, 1fr); }

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

/* --- Responsive: xl (1280px) --- */
@media (min-width: 1280px) {
  .container {
    padding: 0 var(--space-xl);
  }
}

/* --- Focus Styles --- */
:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

button:focus:not(:focus-visible),
a:focus:not(:focus-visible) {
  outline: none;
}

/* --- Selection --- */
::selection {
  background: var(--color-primary);
  color: #FFFFFF;
}

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

.text-center { text-align: center; }
.text-primary { color: var(--color-primary); }
.text-accent { color: var(--color-accent); }
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }