/* ==========================================================================
   Автобояджийски сервиз „АвтоГланц Экспрес“ ООД
   Чист, лек, достъпен и адаптивен CSS без външни библиотеки
   Стандарти: WCAG AA, Mobile-First, Системни шрифтове
   ========================================================================== */

:root {
  /* Цветова палитра - акцентен автомобилен син цвят с висок контраст */
  --color-primary: #1e40af;       /* Тъмно кралско синьо, WCAG AAA контраст към бяло */
  --color-primary-hover: #1e3a8a;
  --color-primary-light: #eff6ff;
  --color-primary-border: #bfdbfe;
  
  --color-text-main: #0f172a;     /* Дълбоко графитено черно */
  --color-text-muted: #475569;    /* Четлив сив цвят с контраст над 5.5:1 */
  --color-text-inverse: #ffffff;

  --color-bg-base: #f8fafc;       /* Много светъл неутрален фон */
  --color-bg-surface: #ffffff;    /* Бял фон на карти и секции */
  --color-bg-alt: #f1f5f9;        /* Лек контрастен фон за редуване на секции */
  --color-border: #cbd5e1;        /* Граница с добър контраст */
  --color-border-light: #e2e8f0;

  --color-accent: #b45309;        /* Топъл кехлибарен цвят за акценти/плейсхолдъри */
  --color-placeholder-bg: #fef3c7;
  --color-placeholder-text: #92400e;
  --color-placeholder-border: #fcd34d;

  --color-success: #15803d;
  --color-success-bg: #dcfce7;

  /* Типография - системни шрифтове */
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;

  /* Разстояния и размери */
  --container-max-width: 1160px;
  --header-height: 72px;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.08);
  --shadow-md: 0 4px 12px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 10px 25px rgba(15, 23, 42, 0.1);
}

/* Нулиране и основни правила */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-family: var(--font-family);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text-main);
  background-color: var(--color-bg-base);
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  color: var(--color-text-main);
  background-color: var(--color-bg-base);
}

/* Достъпност: Skip to content */
.skip-link {
  position: absolute;
  top: -9999px;
  left: 1rem;
  background: var(--color-primary);
  color: var(--color-text-inverse);
  padding: 0.75rem 1.25rem;
  z-index: 9999;
  font-weight: 700;
  border-radius: var(--radius-sm);
  text-decoration: none;
}

.skip-link:focus {
  top: 1rem;
}

/* Фокус индикатори за достъпност (WCAG) */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 3px;
}

/* Контейнер */
.container {
  width: 100%;
  max-width: var(--container-max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.25rem;
  padding-right: 1.25rem;
}

/* ==========================================================================
   Header & Навигация
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: var(--color-bg-surface);
  border-bottom: 1px solid var(--color-border-light);
  box-shadow: var(--shadow-sm);
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: var(--color-text-main);
}

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

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

.brand-title {
  font-size: 1.15rem;
  font-weight: 800;
  line-height: 1.2;
  color: var(--color-text-main);
  letter-spacing: -0.01em;
}

.brand-subtitle {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  font-weight: 500;
}

/* Навигационно меню */
.site-nav {
  position: relative;
}

.nav-toggle-btn {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.6rem 0.9rem;
  background-color: var(--color-bg-alt);
  color: var(--color-text-main);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  min-height: 44px;
}

.nav-menu {
  display: none;
  list-style: none;
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  width: 260px;
  background-color: var(--color-bg-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  padding: 0.75rem 0.5rem;
  flex-direction: column;
  gap: 0.25rem;
}

.nav-menu.is-active {
  display: flex;
}

.nav-link {
  display: block;
  padding: 0.75rem 1rem;
  color: var(--color-text-main);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
  border-radius: var(--radius-sm);
  transition: background-color 0.15s ease, color 0.15s ease;
}

.nav-link:hover {
  background-color: var(--color-primary-light);
  color: var(--color-primary);
}

.nav-link.active {
  background-color: var(--color-primary);
  color: var(--color-text-inverse);
}

.header-cta {
  display: none;
}

/* Десктоп навигация */
@media (min-width: 860px) {
  .nav-toggle-btn {
    display: none;
  }

  .nav-menu {
    display: flex;
    position: static;
    width: auto;
    background: transparent;
    border: none;
    box-shadow: none;
    padding: 0;
    flex-direction: row;
    align-items: center;
    gap: 0.5rem;
  }

  .nav-link {
    padding: 0.5rem 0.85rem;
    font-size: 0.95rem;
  }

  .nav-link.active {
    background-color: var(--color-primary-light);
    color: var(--color-primary);
    border-bottom: 2px solid var(--color-primary);
    border-radius: 4px 4px 0 0;
  }

  .header-cta {
    display: inline-flex;
    margin-left: 1rem;
  }
}

/* ==========================================================================
   Типография & Заглавия
   ========================================================================== */
h1, h2, h3, h4 {
  color: var(--color-text-main);
  line-height: 1.25;
  font-weight: 800;
  letter-spacing: -0.015em;
}

h1 {
  font-size: 2rem;
  margin-bottom: 1rem;
}

h2 {
  font-size: 1.6rem;
  margin-bottom: 0.85rem;
}

h3 {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
}

p {
  margin-bottom: 1rem;
  color: var(--color-text-muted);
}

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

@media (min-width: 768px) {
  h1 { font-size: 2.75rem; }
  h2 { font-size: 2rem; }
  h3 { font-size: 1.4rem; }
}

/* ==========================================================================
   Бутони
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-weight: 700;
  font-size: 1rem;
  text-decoration: none;
  padding: 0.85rem 1.5rem;
  border-radius: var(--radius-sm);
  border: 2px solid transparent;
  cursor: pointer;
  min-height: 48px;
  text-align: center;
  line-height: 1.2;
  transition: all 0.15s ease-in-out;
}

.btn-primary {
  background-color: var(--color-primary);
  color: var(--color-text-inverse);
  border-color: var(--color-primary);
}

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

.btn-secondary {
  background-color: var(--color-bg-alt);
  color: var(--color-text-main);
  border-color: var(--color-border);
}

.btn-secondary:hover {
  background-color: #e2e8f0;
  border-color: #94a3b8;
}

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

.btn-outline:hover {
  background-color: var(--color-primary-light);
}

.btn-large {
  padding: 1rem 1.75rem;
  font-size: 1.1rem;
  border-radius: var(--radius-md);
}

.btn-full {
  width: 100%;
}

.btn-group {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

@media (min-width: 640px) {
  .btn-group {
    flex-direction: row;
    flex-wrap: wrap;
    align-items: center;
  }
}

/* ==========================================================================
   Секции
   ========================================================================== */
main {
  flex: 1 0 auto;
}

.section {
  padding-top: 3.5rem;
  padding-bottom: 3.5rem;
}

.section-alt {
  background-color: var(--color-bg-alt);
  border-top: 1px solid var(--color-border-light);
  border-bottom: 1px solid var(--color-border-light);
}

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 2.5rem;
}

.section-tag {
  display: inline-block;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 800;
  color: var(--color-primary);
  background-color: var(--color-primary-light);
  padding: 0.35rem 0.75rem;
  border-radius: 9999px;
  margin-bottom: 0.75rem;
}

.section-lead {
  font-size: 1.1rem;
  color: var(--color-text-muted);
}

/* Hero Секция */
.hero-section {
  padding: 3rem 0;
  background: linear-gradient(180deg, #ffffff 0%, #f1f5f9 100%);
  border-bottom: 1px solid var(--color-border-light);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  align-items: center;
}

@media (min-width: 900px) {
  .hero-section {
    padding: 4.5rem 0;
  }
  .hero-grid {
    grid-template-columns: 1.2fr 0.8fr;
    gap: 3rem;
  }
}

.hero-badge-wrap {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.hero-location-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-text-main);
  background-color: #e2e8f0;
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-sm);
}

.hero-lead {
  font-size: 1.15rem;
  line-height: 1.6;
  color: var(--color-text-muted);
  margin-bottom: 1.5rem;
}

/* CSS визуален блок (заместващ снимка) */
.hero-visual-box {
  background-color: var(--color-bg-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-md);
  position: relative;
}

.visual-badge-header {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.75rem;
  display: block;
}

.service-graphic-wrap {
  background: linear-gradient(135deg, #1e3a8a 0%, #1e40af 100%);
  color: #ffffff;
  padding: 1.75rem;
  border-radius: var(--radius-md);
  margin-bottom: 1.25rem;
  text-align: center;
}

.service-graphic-icon {
  width: 48px;
  height: 48px;
  margin: 0 auto 0.75rem;
  color: #93c5fd;
}

.service-graphic-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 0.25rem;
}

.service-graphic-sub {
  font-size: 0.85rem;
  color: #bfdbfe;
}

.quick-specs-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.quick-spec-item {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  font-size: 0.95rem;
  color: var(--color-text-main);
}

.quick-spec-icon {
  color: var(--color-success);
  flex-shrink: 0;
  margin-top: 2px;
}

/* ==========================================================================
   Карти и решетки (Cards & Grids)
   ========================================================================== */
.grid-3 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 640px) {
  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 960px) {
  .grid-3 {
    grid-template-columns: repeat(3, 1fr);
  }
}

.card {
  background-color: var(--color-bg-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-sm);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-primary-border);
}

.card-icon-box {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  background-color: var(--color-primary-light);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
}

.card-title {
  font-size: 1.2rem;
  margin-bottom: 0.75rem;
  color: var(--color-text-main);
}

.card-text {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  flex-grow: 1;
  margin-bottom: 1.25rem;
}

.card-footer {
  margin-top: auto;
  padding-top: 1rem;
  border-top: 1px solid var(--color-border-light);
}

.card-link {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--color-primary);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.card-link:hover {
  text-decoration: underline;
}

/* Секция „Защо да изберете нас“ */
.feature-card {
  background-color: var(--color-bg-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  display: flex;
  gap: 1rem;
}

.feature-num {
  font-size: 1.5rem;
  font-weight: 900;
  color: var(--color-primary);
  line-height: 1;
  background-color: var(--color-primary-light);
  width: 42px;
  height: 42px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.feature-body h3 {
  font-size: 1.15rem;
  margin-bottom: 0.35rem;
}

.feature-body p {
  font-size: 0.95rem;
  color: var(--color-text-muted);
}

/* ==========================================================================
   Плейсхолдър компонент (видими маркировки за данни)
   ========================================================================== */
.placeholder-mark {
  display: inline-block;
  background-color: var(--color-placeholder-bg);
  color: var(--color-placeholder-text);
  border: 1px solid var(--color-placeholder-border);
  border-radius: 4px;
  padding: 0.15rem 0.45rem;
  font-weight: 700;
  font-family: var(--font-mono);
  font-size: 0.9em;
  word-break: break-word;
}

.placeholder-notice {
  background-color: var(--color-placeholder-bg);
  border-left: 4px solid var(--color-accent);
  padding: 1rem;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin-bottom: 1.5rem;
  font-size: 0.9rem;
  color: var(--color-placeholder-text);
}

/* ==========================================================================
   Страница: Контакти
   ========================================================================== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

@media (min-width: 860px) {
  .contact-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.contact-card {
  background-color: var(--color-bg-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 2rem;
  box-shadow: var(--shadow-sm);
}

.contact-item {
  display: flex;
  gap: 1rem;
  margin-bottom: 1.5rem;
  align-items: flex-start;
}

.contact-item:last-child {
  margin-bottom: 0;
}

.contact-icon-box {
  width: 44px;
  height: 44px;
  background-color: var(--color-primary-light);
  color: var(--color-primary);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-details h3 {
  font-size: 1.05rem;
  margin-bottom: 0.25rem;
}

.contact-details p {
  font-size: 0.95rem;
  margin-bottom: 0.25rem;
}

.contact-link {
  color: var(--color-primary);
  font-weight: 700;
  text-decoration: none;
  font-size: 1.05rem;
  display: inline-block;
}

.contact-link:hover {
  text-decoration: underline;
}

.hours-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 0.5rem;
  font-size: 0.95rem;
}

.hours-table tr {
  border-bottom: 1px solid var(--color-border-light);
}

.hours-table tr:last-child {
  border-bottom: none;
}

.hours-table td {
  padding: 0.5rem 0;
}

.hours-table td:last-child {
  text-align: right;
  font-weight: 700;
  color: var(--color-text-main);
}

/* ==========================================================================
   Страница: Услуги (Детайлни секции)
   ========================================================================== */
.service-detail-section {
  padding: 2.5rem 0;
  border-bottom: 1px solid var(--color-border-light);
}

.service-detail-section:last-of-type {
  border-bottom: none;
}

.service-detail-card {
  background-color: var(--color-bg-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-sm);
}

.service-detail-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.service-detail-icon {
  width: 52px;
  height: 52px;
  background-color: var(--color-primary-light);
  color: var(--color-primary);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.service-points-list {
  list-style: none;
  margin: 1.25rem 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
}

@media (min-width: 640px) {
  .service-points-list {
    grid-template-columns: 1fr 1fr;
  }
}

.service-point-item {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  font-size: 0.95rem;
  color: var(--color-text-main);
}

/* ==========================================================================
   Страница: За нас
   ========================================================================== */
.about-content-card {
  background-color: var(--color-bg-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-sm);
  max-width: 860px;
  margin: 0 auto;
}

.about-content-card p {
  font-size: 1.05rem;
  line-height: 1.7;
  margin-bottom: 1.25rem;
  color: var(--color-text-main);
}

/* ==========================================================================
   Политика за поверителност
   ========================================================================== */
.policy-card {
  background-color: var(--color-bg-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  max-width: 860px;
  margin: 0 auto;
}

.policy-card h2 {
  font-size: 1.35rem;
  margin-top: 1.5rem;
  margin-bottom: 0.75rem;
  color: var(--color-text-main);
}

.policy-card p, .policy-card ul {
  margin-bottom: 1rem;
  font-size: 0.95rem;
  line-height: 1.65;
}

.policy-card ul {
  padding-left: 1.5rem;
}

/* ==========================================================================
   Страница 404
   ========================================================================== */
.error-page-container {
  text-align: center;
  padding: 4rem 1rem;
  max-width: 600px;
  margin: 0 auto;
}

.error-code {
  font-size: 5rem;
  font-weight: 900;
  color: var(--color-primary);
  line-height: 1;
  margin-bottom: 1rem;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer {
  background-color: var(--color-text-main);
  color: #cbd5e1;
  padding-top: 3.5rem;
  padding-bottom: 2rem;
  margin-top: auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  margin-bottom: 2.5rem;
}

@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: 1.5fr 1fr 1fr;
  }
}

.footer-col h3 {
  color: #ffffff;
  font-size: 1.1rem;
  margin-bottom: 1rem;
  letter-spacing: -0.01em;
}

.footer-col p {
  color: #94a3b8;
  font-size: 0.9rem;
  line-height: 1.6;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.footer-links a {
  color: #cbd5e1;
  text-decoration: none;
  font-size: 0.95rem;
  transition: color 0.15s ease;
}

.footer-links a:hover {
  color: #ffffff;
  text-decoration: underline;
}

.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  margin-bottom: 0.75rem;
  font-size: 0.9rem;
}

.footer-contact-item a {
  color: #93c5fd;
  text-decoration: none;
  font-weight: 600;
}

.footer-contact-item a:hover {
  text-decoration: underline;
}

.footer-bottom {
  border-top: 1px solid #334155;
  padding-top: 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  align-items: center;
  justify-content: space-between;
  font-size: 0.85rem;
  color: #94a3b8;
  text-align: center;
}

@media (min-width: 640px) {
  .footer-bottom {
    flex-direction: row;
    text-align: left;
  }
}

/* ==========================================================================
   Мобилна плаваща лента за бързо повикване (Sticky Mobile Call Bar)
   ========================================================================== */
.mobile-call-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background-color: var(--color-bg-surface);
  border-top: 1px solid var(--color-border);
  box-shadow: 0 -4px 12px rgba(15, 23, 42, 0.12);
  padding: 0.75rem 1rem;
  z-index: 99;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}

@media (min-width: 768px) {
  .mobile-call-bar {
    display: none;
  }
}

/* Отстъп на дъното на страницата при мобилни екрани заради плаващата лента */
@media (max-width: 767px) {
  body {
    padding-bottom: 74px;
  }
}