/* ============================================================
   SAFETY EXPERT – STYLE.CSS
   Design System: "Precision & Trust"
   ============================================================ */

/* ---------- CSS CUSTOM PROPERTIES ---------- */
:root {
  /* Colors – Light Mode */
  --color-bg: #FFFFFF;
  --color-surface: #F5F7FA;
  --color-surface-2: #EDF0F5;
  --color-border: #D1D5DB;
  --color-text: #2D3748;
  --color-text-muted: #6B7280;
  --color-text-faint: #9CA3AF;
  --color-primary: #0A2540;
  --color-primary-hover: #0D3B66;
  --color-accent: #C6930A;
  --color-accent-hover: #A67D08;
  --color-success: #10B981;

  /* Typography */
  --font-display: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
  --font-body: 'General Sans', system-ui, -apple-system, sans-serif;

  /* Type Scale */
  --text-xs: clamp(0.6875rem, 0.65rem + 0.15vw, 0.75rem);
  --text-sm: clamp(0.8125rem, 0.78rem + 0.15vw, 0.875rem);
  --text-base: clamp(0.9375rem, 0.9rem + 0.18vw, 1rem);
  --text-lg: clamp(1.0625rem, 1rem + 0.25vw, 1.125rem);
  --text-xl: clamp(1.1875rem, 1.1rem + 0.4vw, 1.375rem);
  --text-2xl: clamp(1.375rem, 1.2rem + 0.75vw, 1.75rem);
  --text-3xl: clamp(1.75rem, 1.4rem + 1.5vw, 2.5rem);
  --text-4xl: clamp(2rem, 1.5rem + 2.2vw, 3.25rem);
  --text-hero: clamp(2.25rem, 1.6rem + 3vw, 4rem);

  /* Spacing */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;
  --space-3xl: 64px;
  --space-4xl: 96px;
  --space-5xl: 128px;

  /* Layout */
  --max-width: 1200px;
  --header-height: 72px;

  /* Radius */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 24px rgba(0,0,0,0.1);
  --shadow-xl: 0 16px 48px rgba(0,0,0,0.12);

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

/* ---------- DARK MODE ---------- */
[data-theme="dark"] {
  --color-bg: #0F172A;
  --color-surface: #1E293B;
  --color-surface-2: #283548;
  --color-border: #475569;
  --color-text: #E2E8F0;
  --color-text-muted: #94A3B8;
  --color-text-faint: #64748B;
  --color-primary: #60A5FA;
  --color-primary-hover: #93C5FD;
  --color-accent: #F59E0B;
  --color-accent-hover: #D97706;
  --color-success: #34D399;

  --shadow-sm: 0 1px 2px rgba(0,0,0,0.2);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.25);
  --shadow-lg: 0 8px 24px rgba(0,0,0,0.3);
  --shadow-xl: 0 16px 48px rgba(0,0,0,0.35);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-height);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
  overflow-x: hidden;
  transition: background-color var(--duration-normal) var(--ease-out),
              color var(--duration-normal) var(--ease-out);
}

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

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

ul, ol {
  list-style: none;
}

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

button {
  cursor: pointer;
}

/* ---------- SKIP NAV ---------- */
.skip-nav {
  position: absolute;
  top: -100%;
  left: var(--space-md);
  background: var(--color-accent);
  color: #fff;
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-sm);
  font-weight: 600;
  z-index: 10000;
  transition: top var(--duration-fast);
}

.skip-nav:focus {
  top: var(--space-sm);
}

/* ---------- FOCUS STYLES ---------- */
:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

/* ---------- BUTTONS ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--text-sm);
  padding: 12px 24px;
  border-radius: var(--radius-md);
  transition: all var(--duration-fast) var(--ease-out);
  white-space: nowrap;
  text-align: center;
}

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

.btn--accent:hover {
  background: var(--color-accent-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn--outline-white {
  border: 2px solid rgba(255,255,255,0.4);
  color: #fff;
  background: transparent;
}

.btn--outline-white:hover {
  border-color: #fff;
  background: rgba(255,255,255,0.1);
}

.btn--lg {
  font-size: var(--text-base);
  padding: 14px 32px;
}

.btn--full {
  width: 100%;
}

/* ---------- HEADER ---------- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  z-index: 1000;
  transition: transform var(--duration-normal) var(--ease-out),
              background-color var(--duration-normal) var(--ease-out),
              box-shadow var(--duration-normal) var(--ease-out);
}

.header--hidden {
  transform: translateY(-100%);
}

.header--scrolled {
  box-shadow: var(--shadow-md);
}

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

.header__logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  flex-shrink: 0;
}

.header__logo-text {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: var(--text-lg);
  letter-spacing: 0.05em;
  color: var(--color-primary);
}

.header__nav {
  display: none;
}

.header__nav-list {
  display: flex;
  gap: var(--space-sm);
}

.header__nav-link {
  font-family: var(--font-display);
  font-size: 0.8125rem;
  white-space: nowrap;
  font-weight: 500;
  color: var(--color-text-muted);
  padding: var(--space-xs) 0;
  position: relative;
  transition: color var(--duration-fast);
}

.header__nav-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: width var(--duration-normal) var(--ease-out);
}

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

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

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

.header__phone {
  display: none;
  align-items: center;
  gap: 6px;
  font-size: var(--text-sm);
  font-weight: 500;
  white-space: nowrap;
  color: var(--color-text-muted);
  transition: color var(--duration-fast);
}

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

.header__theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  color: var(--color-text-muted);
  transition: all var(--duration-fast);
}

.header__theme-toggle:hover {
  background: var(--color-surface);
  color: var(--color-text);
}

/* Theme toggle icon visibility */
.icon-moon { display: none; }
[data-theme="dark"] .icon-sun { display: none; }
[data-theme="dark"] .icon-moon { display: block; }

.header__cta {
  display: none;
}

/* Hamburger */
.header__hamburger {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 40px;
  height: 40px;
  gap: 5px;
  border-radius: var(--radius-md);
}

.header__hamburger-line {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: all var(--duration-normal) var(--ease-out);
}

.header__hamburger[aria-expanded="true"] .header__hamburger-line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.header__hamburger[aria-expanded="true"] .header__hamburger-line:nth-child(2) {
  opacity: 0;
}

.header__hamburger[aria-expanded="true"] .header__hamburger-line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ---------- MOBILE MENU ---------- */
.mobile-menu {
  position: fixed;
  top: var(--header-height);
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--color-bg);
  z-index: 999;
  padding: var(--space-2xl) var(--space-lg);
  transform: translateX(100%);
  transition: transform var(--duration-normal) var(--ease-out);
  overflow-y: auto;
}

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

.mobile-menu__list {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.mobile-menu__link {
  display: block;
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 700;
  padding: var(--space-md) 0;
  color: var(--color-text);
  border-bottom: 1px solid var(--color-border);
  transition: color var(--duration-fast);
}

.mobile-menu__link:hover {
  color: var(--color-accent);
}

.mobile-menu__footer {
  margin-top: var(--space-3xl);
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.mobile-menu__phone {
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-text-muted);
}

/* ---------- HERO ---------- */
.hero {
  background: #0A2540;
  color: #fff;
  padding-top: calc(var(--header-height) + var(--space-3xl));
  padding-bottom: var(--space-3xl);
  overflow: hidden;
}

[data-theme="dark"] .hero {
  background: #0A2540;
}

.hero__container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-2xl);
  align-items: center;
}

.hero__badge {
  display: inline-block;
  font-family: var(--font-display);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.1em;
  color: #C6930A;
  background: rgba(198, 147, 10, 0.12);
  padding: 6px 16px;
  border-radius: 100px;
  margin-bottom: var(--space-lg);
}

.hero__title {
  font-family: var(--font-display);
  font-size: var(--text-hero);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: var(--space-lg);
  letter-spacing: -0.02em;
}

.hero__subtitle {
  font-size: var(--text-lg);
  line-height: 1.6;
  color: rgba(255,255,255,0.75);
  max-width: 540px;
  margin-bottom: var(--space-xl);
}

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

.hero__image {
  display: none;
}

.hero__image img {
  border-radius: var(--radius-xl);
  box-shadow: 0 24px 48px rgba(0,0,0,0.3);
  width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: 6/5;
}

/* ---------- TRUST BAR ---------- */
.trust-bar {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-lg) 0;
  overflow: hidden;
}

.trust-bar__container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.trust-bar__label {
  font-size: var(--text-sm);
  color: var(--color-text-faint);
  text-align: center;
  margin-bottom: var(--space-md);
}

.trust-bar__logos {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-lg) var(--space-xl);
}

.trust-bar__logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-sm);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-faint);
  white-space: nowrap;
  opacity: 0.7;
  transition: opacity var(--duration-fast);
}

.trust-bar__logo:hover {
  opacity: 1;
}

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

.section__container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.section__header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto var(--space-3xl);
}

.section__title {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 800;
  color: var(--color-text);
  margin-bottom: var(--space-md);
  letter-spacing: -0.02em;
}

.section__subtitle {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* ---------- SERVICES ---------- */
.services {
  background: var(--color-bg);
}

.services__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
}

.service-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  transition: all var(--duration-normal) var(--ease-out);
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-accent);
}

.service-card__icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  background: rgba(10, 37, 64, 0.06);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  margin-bottom: var(--space-lg);
}

[data-theme="dark"] .service-card__icon {
  background: rgba(96, 165, 250, 0.12);
}

.service-card__title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  margin-bottom: var(--space-sm);
  color: var(--color-text);
}

.service-card__desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-bottom: var(--space-lg);
}

.service-card__link {
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-accent);
  transition: color var(--duration-fast);
  cursor: pointer;
  background: none;
  border: none;
  padding: 0;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.service-card__link:hover {
  color: var(--color-accent-hover);
}

.service-card__arrow {
  display: inline-block;
  transition: transform var(--duration-fast) var(--ease-out);
}

.service-card__link[aria-expanded="true"] .service-card__arrow {
  transform: rotate(90deg);
}

.service-card__details {
  overflow: hidden;
  max-height: 0;
  opacity: 0;
  transition: max-height 0.4s ease, opacity 0.3s ease, margin 0.3s ease;
  margin-top: 0;
}

.service-card__details[hidden] {
  display: block;
  max-height: 0;
  opacity: 0;
  margin-top: 0;
}

.service-card__details.is-open {
  max-height: 500px;
  opacity: 1;
  margin-top: var(--space-md);
}

.service-card__details ul {
  list-style: none;
  padding: 0;
  margin: 0 0 var(--space-md) 0;
}

.service-card__details li {
  position: relative;
  padding-left: 20px;
  padding-top: 4px;
  padding-bottom: 4px;
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.6;
}

.service-card__details li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 12px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-accent);
  opacity: 0.6;
}

.service-card__cta {
  display: inline-block;
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 600;
  color: #fff;
  background: var(--color-accent);
  padding: 8px 20px;
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: background var(--duration-fast);
}

.service-card__cta:hover {
  background: var(--color-accent-hover);
}

/* ---------- STATS ---------- */
.stats {
  background: #0A2540;
  color: #fff;
  padding: var(--space-3xl) 0;
}

[data-theme="dark"] .stats {
  background: #0A2540;
}

.stats__container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-xl);
}

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

.stats__number {
  font-family: var(--font-display);
  font-size: var(--text-4xl);
  font-weight: 800;
  display: block;
  line-height: 1.1;
  font-variant-numeric: tabular-nums;
}

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

.stats__plus {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 800;
  color: #C6930A;
}

.stats__label {
  display: block;
  font-size: var(--text-sm);
  color: rgba(255,255,255,0.6);
  margin-top: var(--space-sm);
}

/* ---------- WHY US ---------- */
.why-us {
  background: var(--color-bg);
}

.why-us__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
}

.why-us__card {
  display: flex;
  gap: var(--space-md);
  padding: var(--space-xl);
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  transition: all var(--duration-normal) var(--ease-out);
}

.why-us__card:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-md);
}

.why-us__icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: rgba(10, 37, 64, 0.06);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
}

[data-theme="dark"] .why-us__icon {
  background: rgba(96, 165, 250, 0.12);
}

.why-us__title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-xs);
}

.why-us__desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.5;
}

/* ---------- ABOUT ---------- */
.about {
  background: var(--color-surface);
}

.about__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-2xl);
  align-items: center;
}

.about__image img {
  border-radius: var(--radius-xl);
  width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: 4/5;
  box-shadow: var(--shadow-lg);
}

.about__content .section__title {
  text-align: left;
}

.about__role {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-accent);
  margin-bottom: var(--space-lg);
}

.about__text {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: var(--space-md);
}

.about__milestones {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-md);
  margin-top: var(--space-xl);
}

.about__milestone {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  text-align: center;
}

.about__milestone-year {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 800;
  color: var(--color-primary);
  display: block;
}

.about__milestone-label {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  display: block;
  margin-top: 2px;
}

/* ---------- REFERENCES ---------- */
.references {
  background: var(--color-bg);
}

.references__groups {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl);
}

.references__group-title {
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--color-text);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-sm);
  border-bottom: 2px solid var(--color-accent);
  display: inline-block;
}

.references__chips {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.references__chip {
  display: inline-block;
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 500;
  padding: 8px 16px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text-muted);
  transition: all var(--duration-fast);
}

.references__chip:hover {
  border-color: var(--color-primary);
  color: var(--color-text);
  background: var(--color-surface-2);
}

/* ---------- CTA SECTION ---------- */
.cta-section {
  position: relative;
  background-image: url('./images/cta-background.jpg');
  background-size: cover;
  background-position: center;
  padding: var(--space-4xl) 0;
  text-align: center;
  color: #fff;
}

.cta-section__overlay {
  position: absolute;
  inset: 0;
  background: rgba(10, 37, 64, 0.88);
}

.cta-section__content {
  position: relative;
  z-index: 1;
  max-width: 640px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.cta-section__title {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 800;
  margin-bottom: var(--space-md);
  letter-spacing: -0.02em;
}

.cta-section__subtitle {
  font-size: var(--text-lg);
  color: rgba(255,255,255,0.75);
  line-height: 1.6;
  margin-bottom: var(--space-xl);
}

.cta-section__contact {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-lg);
  margin-top: var(--space-xl);
}

.cta-section__link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--text-sm);
  color: rgba(255,255,255,0.75);
  transition: color var(--duration-fast);
}

.cta-section__link:hover {
  color: #fff;
}

/* ---------- CONTACT ---------- */
.contact {
  background: var(--color-surface);
}

.contact__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-2xl);
}

/* Form */
.contact__form {
  background: var(--color-bg);
  padding: var(--space-xl);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
}

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

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

.form__input,
.form__select,
.form__textarea {
  width: 100%;
  padding: 12px 16px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: var(--text-base);
  color: var(--color-text);
  transition: border-color var(--duration-fast), box-shadow var(--duration-fast);
}

.form__input:focus,
.form__select:focus,
.form__textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(10, 37, 64, 0.1);
}

[data-theme="dark"] .form__input:focus,
[data-theme="dark"] .form__select:focus,
[data-theme="dark"] .form__textarea:focus {
  box-shadow: 0 0 0 3px rgba(96, 165, 250, 0.15);
}

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

.form__select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath d='M3 5l3 3 3-3' fill='none' stroke='%236B7280' stroke-width='1.5' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 40px;
}

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

.form__error {
  display: block;
  font-size: var(--text-xs);
  color: #EF4444;
  margin-top: 4px;
  min-height: 1em;
}

.form__input.is-invalid,
.form__textarea.is-invalid {
  border-color: #EF4444;
}

.form__success {
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md);
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid var(--color-success);
  border-radius: var(--radius-md);
  margin-top: var(--space-lg);
  color: var(--color-success);
  display: none;
}

.form__success.is-visible {
  display: flex;
}

.form__success p {
  font-size: var(--text-sm);
  font-weight: 500;
}

.form__server-error {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-md);
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid #EF4444;
  border-radius: var(--radius-md);
  margin-bottom: var(--space-md);
  color: #EF4444;
  font-size: var(--text-sm);
  font-weight: 500;
  animation: fadeIn 0.3s ease-out;
}

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

button[type="submit"]:disabled {
  opacity: 0.7;
  cursor: not-allowed;
}

/* Contact Info Cards */
.contact__info {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.contact__info-card {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  padding: var(--space-lg);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: border-color var(--duration-fast);
}

.contact__info-card:hover {
  border-color: var(--color-primary);
}

.contact__info-icon {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: rgba(10, 37, 64, 0.06);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
}

[data-theme="dark"] .contact__info-icon {
  background: rgba(96, 165, 250, 0.12);
}

.contact__info-title {
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 2px;
}

.contact__info-value {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.5;
}

a.contact__info-value:hover {
  color: var(--color-primary);
}

/* ---------- FOOTER ---------- */
.footer {
  background: #0A2540;
  color: #fff;
  padding: var(--space-3xl) 0 0;
}

[data-theme="dark"] .footer {
  background: #0A2540;
}

.footer__container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

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

.footer__logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
}

.footer__logo-text {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: var(--text-lg);
  letter-spacing: 0.05em;
  color: #fff;
}

.footer__desc {
  font-size: var(--text-sm);
  color: rgba(255,255,255,0.6);
  line-height: 1.6;
  max-width: 300px;
  margin-bottom: var(--space-lg);
}

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

.footer__social a {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.5);
  transition: all var(--duration-fast);
}

.footer__social a:hover {
  color: #fff;
  background: rgba(255,255,255,0.1);
}

.footer__heading {
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: rgba(255,255,255,0.5);
  margin-bottom: var(--space-lg);
}

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

.footer__links a {
  font-size: var(--text-sm);
  color: rgba(255,255,255,0.7);
  transition: color var(--duration-fast);
  padding: 2px 0;
}

.footer__links a:hover {
  color: #fff;
}

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

.footer__contact li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  font-size: var(--text-sm);
  color: rgba(255,255,255,0.7);
}

.footer__contact li svg {
  flex-shrink: 0;
  margin-top: 2px;
  color: rgba(255,255,255,0.4);
}

.footer__contact a {
  color: rgba(255,255,255,0.7);
  transition: color var(--duration-fast);
}

.footer__contact a:hover {
  color: #fff;
}

.footer__bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding: var(--space-lg) 0;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-md);
}

.footer__bottom p {
  font-size: var(--text-xs);
  color: rgba(255,255,255,0.4);
}

.footer__attribution {
  font-size: var(--text-xs);
  color: rgba(255,255,255,0.4);
  transition: color var(--duration-fast);
}

.footer__attribution:hover {
  color: rgba(255,255,255,0.7);
}

.footer__legal-link {
  color: rgba(255,255,255,0.5);
  text-decoration: underline;
  transition: color var(--duration-fast);
}

.footer__legal-link:hover {
  color: rgba(255,255,255,0.8);
}

/* ---------- ANIMATIONS ---------- */
[data-animate] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity var(--duration-slow) var(--ease-out),
              transform var(--duration-slow) var(--ease-out);
}

[data-animate].is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  [data-animate] {
    opacity: 1;
    transform: none;
  }
}

/* ============================================================
   RESPONSIVE BREAKPOINTS
   ============================================================ */

/* Tablet (768px+) */
@media (min-width: 768px) {
  .services__grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

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

  .about__grid {
    grid-template-columns: 1fr 1fr;
  }

  .contact__grid {
    grid-template-columns: 1fr 1fr;
  }

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

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

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

  .hero__image {
    display: block;
  }

  .hero__container {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
  }
}

/* Desktop (1024px+) */
@media (min-width: 1024px) {
  .header__nav {
    display: block;
  }

  .header__phone {
    display: none;
  }

  .header__cta {
    display: inline-flex;
  }

  .header__hamburger {
    display: none;
  }

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

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

  .footer__grid {
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
  }
}

/* Large Desktop (1200px+) */
@media (min-width: 1280px) {
  .header__phone {
    display: flex;
  }
}

@media (min-width: 1200px) {
  .hero {
    padding-top: calc(var(--header-height) + var(--space-4xl));
    padding-bottom: var(--space-4xl);
  }

  .hero__container {
    gap: var(--space-4xl);
  }
}