/* ============================================
   Smart4Ops — Shared Layout Components
   Header, Footer, Nav, Page Hero, CTA Banner
   ============================================ */

/* --- Header --- */
.header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border-light);
  height: var(--header-height);
}

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

.header__brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
}

.header__icon {
  flex-shrink: 0;
}

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

.header__logo {
  font-family: var(--font-heading);
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: 0.05em;
  line-height: 1.2;
}

.header__tagline {
  font-size: 0.65rem;
  color: var(--color-text-light);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  font-weight: 400;
}

/* --- Language Switcher (Dropdown) --- */
.lang-switch {
  position: relative;
  margin-left: var(--space-sm);
}

.lang-dropdown {
  position: relative;
}

.lang-current {
  display: flex;
  align-items: center;
  gap: 4px;
  background: none;
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-sm);
  padding: 5px 10px;
  font-size: 0.78rem;
  font-family: var(--font-body);
  font-weight: 500;
  color: var(--color-text-medium);
  cursor: pointer;
  transition: all var(--transition-fast);
  line-height: 1.3;
}

.lang-current:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.lang-flag-img {
  width: 20px;
  height: 14px;
  border-radius: 2px;
  object-fit: cover;
  vertical-align: middle;
  box-shadow: 0 0 1px rgba(0,0,0,.2);
}

.lang-menu {
  display: none;
  position: absolute;
  top: calc(100% + 4px);
  right: 0;
  background: var(--color-bg-white);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-sm);
  box-shadow: var(--shadow-md);
  z-index: 1100;
  min-width: 150px;
  overflow: hidden;
}

.lang-menu.open {
  display: block;
}

.lang-option {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  padding: 8px 14px;
  background: none;
  border: none;
  font-size: 0.82rem;
  font-family: var(--font-body);
  color: var(--color-text-medium);
  cursor: pointer;
  transition: background var(--transition-fast);
  text-align: left;
}

.lang-option:hover {
  background: var(--color-bg-light);
}

.lang-option.active {
  color: var(--color-primary);
  font-weight: 600;
  background: var(--color-bg-blue-light);
}

/* --- Desktop Navigation --- */
.nav {
  display: flex;
  align-items: center;
  gap: var(--space-2xl);
}

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

.nav__link {
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-text-medium);
  text-decoration: none;
  padding: var(--space-xs) 0;
  border-bottom: 2px solid transparent;
  transition: all var(--transition-fast);
}

.nav__link:hover,
.nav__link--active {
  color: var(--color-primary);
  border-bottom-color: var(--color-accent);
}

.nav__cta {
  font-size: var(--font-size-sm);
  padding: 0.625rem 1.25rem;
}

.nav__contact {
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
}

/* --- Hamburger Menu (Mobile) --- */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 28px;
  height: 28px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  z-index: 1001;
}

.hamburger__line {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--color-text-dark);
  border-radius: 2px;
  transition: all var(--transition-base);
}

.hamburger--active .hamburger__line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.hamburger--active .hamburger__line:nth-child(2) {
  opacity: 0;
}

.hamburger--active .hamburger__line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* --- Page Hero (reusable for inner pages) --- */
.page-hero {
  background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 50%, var(--color-primary-medium) 100%);
  color: var(--color-text-white);
  padding: var(--space-4xl) 0;
  text-align: center;
}

.page-hero h1 {
  color: var(--color-text-white);
  margin-bottom: var(--space-md);
}

.page-hero p {
  color: rgba(255, 255, 255, 0.9);
  font-size: var(--font-size-md);
  max-width: 600px;
  margin: 0 auto;
}

/* --- CTA Banner --- */
.cta-banner {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-medium) 100%);
  color: var(--color-text-white);
  padding: var(--space-3xl) 0;
  text-align: center;
}

.cta-banner h2 {
  color: var(--color-text-white);
  margin-bottom: var(--space-sm);
}

.cta-banner p {
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: var(--space-xl);
}

.cta-banner .btn-group {
  justify-content: center;
}

/* --- Footer --- */
.footer {
  background-color: var(--color-bg-dark);
  color: rgba(255, 255, 255, 0.8);
  padding: var(--space-3xl) 0 var(--space-xl);
}

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

.footer__brand-name {
  font-family: var(--font-heading);
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--color-text-white);
  margin-bottom: var(--space-sm);
}

.footer__description {
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.7);
  line-height: var(--line-height-relaxed);
  max-width: 360px;
}

.footer__heading {
  font-family: var(--font-heading);
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-text-white);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-md);
}

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

.footer__link {
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.7);
  transition: color var(--transition-fast);
}

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

.footer__bottom {
  max-width: var(--max-width);
  margin: var(--space-2xl) auto 0;
  padding: var(--space-lg) var(--space-xl) 0;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  flex-direction: column;
  align-items: center;
}

.footer__copyright {
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.5);
}

.footer__legal {
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.4);
  margin-top: var(--space-sm);
  text-align: center;
  width: 100%;
}

.footer__legal a {
  color: rgba(255, 255, 255, 0.5);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer__legal a:hover {
  color: var(--color-accent);
}


/* --- Card Component (reusable) --- */
.card {
  background: var(--color-bg-white);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-md);
  padding: var(--space-xl);
  transition: all var(--transition-base);
}

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

.card__icon {
  width: 48px;
  height: 48px;
  background: var(--color-accent-light);
  border-radius: var(--border-radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-lg);
  font-size: 1.5rem;
}

.card__icon svg {
  width: 24px;
  height: 24px;
  color: var(--color-accent);
  stroke-width: 1.75;
}

.card__title {
  font-family: var(--font-heading);
  font-size: var(--font-size-lg);
  font-weight: 600;
  margin-bottom: var(--space-sm);
  color: var(--color-text-dark);
}

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

/* --- Credibility Strip --- */
.credibility-strip {
  background-color: var(--color-bg-blue-light);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-lg) 0;
}

.credibility-strip__inner {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--space-2xl);
  flex-wrap: wrap;
}

.credibility-strip__item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-primary);
}

.credibility-strip__icon {
  font-size: 1.25rem;
}

/* --- Accessibility: Skip Navigation --- */
.skip-link {
  position: absolute;
  top: -100%;
  left: 0;
  background: var(--color-primary);
  color: #fff;
  padding: 0.5rem 1rem;
  z-index: 10001;
  font-size: var(--font-size-sm);
  text-decoration: none;
  border-radius: 0 0 4px 0;
}

.skip-link:focus {
  top: 0;
}

/* --- Accessibility: Focus Indicators --- */
*:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

button:focus-visible,
.btn:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
  box-shadow: 0 0 0 4px rgba(0, 148, 248, 0.2);
}

/* --- Mobile Responsive --- */
@media (max-width: 768px) {
  .header__inner {
    padding: 0 var(--space-md);
  }

  .hamburger {
    display: flex;
  }

  .nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: var(--color-bg-white);
    flex-direction: column;
    align-items: flex-start;
    padding: calc(var(--header-height) + var(--space-xl)) var(--space-xl) var(--space-xl);
    box-shadow: var(--shadow-lg);
    transition: right var(--transition-base);
    gap: var(--space-xl);
  }

  .nav--open {
    right: 0;
  }

  .nav__links {
    flex-direction: column;
    gap: var(--space-md);
    width: 100%;
  }

  .nav__link {
    font-size: var(--font-size-base);
    padding: var(--space-sm) 0;
  }

  .nav__contact {
    display: none;
  }

  .nav__cta {
    width: 100%;
    text-align: center;
  }

  /* Page Hero */
  .page-hero {
    padding: var(--space-3xl) 0;
  }

  /* Footer */
  .footer__grid {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
    padding: 0 var(--space-md);
  }

  .footer__bottom {
    flex-direction: column;
    gap: var(--space-sm);
    text-align: center;
    padding: var(--space-lg) var(--space-md) 0;
  }

  /* Credibility Strip */
  .credibility-strip__inner {
    flex-direction: column;
    gap: var(--space-md);
  }

  /* Cards */
  .card {
    padding: var(--space-lg);
  }
}

/* --- Mobile Nav Overlay --- */
.nav-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.4);
  z-index: 999;
}

.nav-overlay--visible {
  display: block;
}

/* --- Cookie Consent Banner --- */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 10000;
  background: rgba(26, 42, 58, 0.97);
  color: rgba(255, 255, 255, 0.92);
  box-shadow: 0 -2px 16px rgba(0, 0, 0, 0.25);
  transform: translateY(100%);
  opacity: 0;
  transition: transform 0.4s ease, opacity 0.4s ease;
}

.cookie-banner--visible {
  transform: translateY(0);
  opacity: 1;
}

.cookie-banner--hidden {
  transform: translateY(100%);
  opacity: 0;
}

.cookie-banner__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--space-lg) var(--space-xl);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-xl);
}

.cookie-banner__text {
  font-size: var(--font-size-sm);
  line-height: var(--line-height-relaxed);
  flex: 1;
  margin: 0;
}

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

.cookie-banner__btn {
  font-size: var(--font-size-sm);
  padding: 0.5rem 1.25rem;
  white-space: nowrap;
}

.cookie-banner__btn.btn--secondary {
  border-color: rgba(255, 255, 255, 0.5);
  color: rgba(255, 255, 255, 0.9);
}

.cookie-banner__btn.btn--secondary:hover {
  border-color: #fff;
  color: #fff;
}

.cookie-banner__link {
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.7);
  text-decoration: underline;
  white-space: nowrap;
  transition: color var(--transition-fast);
}

.cookie-banner__link:hover {
  color: #fff;
}

@media (max-width: 768px) {
  .cookie-banner__inner {
    flex-direction: column;
    text-align: center;
    padding: var(--space-lg) var(--space-md);
    gap: var(--space-md);
  }

  .cookie-banner__actions {
    flex-direction: column;
    width: 100%;
    gap: var(--space-xs);
  }

  .cookie-banner__btn {
    width: 100%;
  }
}