/* Header Layout */
header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 70px;
  background-color: transparent;
  z-index: var(--z-sticky);
  transition: var(--transition-base);
}

header.scrolled {
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow-sm);
  height: 70px;
}

header.scrolled nav .nav-links a {
  color: var(--color-text-body);
}

header.scrolled nav .nav-links a:hover,
header.scrolled nav .nav-links a.active {
  color: var(--color-primary);
}

header.scrolled nav .nav-links a::after {
  background-color: var(--color-primary);
}

header.scrolled nav .logo-text {
  color: var(--color-primary-dark);
}

header.scrolled nav .logo img {
  filter: none;
}

/* Nav container */
nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

nav .logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

nav .logo img {
  max-height: 55px;
  width: auto;
  filter: brightness(0) invert(1);
  transition: var(--transition-base);
}

nav .logo-text {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: var(--weight-bold);
  color: var(--color-white);
  transition: var(--transition-colors);
}

header.scrolled nav .logo-text {
  color: var(--color-primary-dark);
}

/* Nav links desktop */
.nav-links {
  display: none;
  gap: var(--space-8);
}

.nav-links a {
  color: rgba(255, 255, 255, 0.9);
  font-family: var(--font-body);
  font-weight: var(--weight-medium);
  font-size: var(--text-sm);
  padding: var(--space-2) 0;
  position: relative;
  transition: var(--transition-colors);
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-accent);
  transition: var(--transition-base);
}

.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--color-white);
}

/* Scrolled styles are consolidated in the header.scrolled section */

/* Devis button desktop */
nav .btn-devis {
  display: none;
}

/* Mobile hamburger button */
.hamburger {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  width: 24px;
  height: 18px;
  z-index: var(--z-overlay);
}

.hamburger span {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--color-white);
  border-radius: 2px;
  transition: var(--transition-base);
}

header.scrolled .hamburger span {
  background-color: var(--color-primary-dark);
}

.hamburger.open span:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
  background-color: var(--color-primary-dark);
}

.hamburger.open span:nth-child(2) {
  opacity: 0;
}

.hamburger.open span:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
  background-color: var(--color-primary-dark);
}

/* Mobile Menu drawer */
.mobile-menu {
  position: fixed;
  top: 0;
  right: -100%;
  width: 80%;
  max-width: 350px;
  height: 100vh;
  background-color: var(--color-white);
  box-shadow: var(--shadow-xl);
  padding: 100px var(--space-8) var(--space-8);
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
  z-index: var(--z-sticky);
  transition: right var(--duration-normal) var(--ease-default);
}

.mobile-menu.open {
  right: 0;
}

.mobile-menu-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(4px);
  z-index: var(--z-raised);
  opacity: 0;
  visibility: hidden;
  transition: var(--transition-base);
}

.mobile-menu-overlay.open {
  opacity: 1;
  visibility: visible;
}

.mobile-menu a {
  color: var(--color-text-dark);
  font-family: var(--font-body);
  font-weight: var(--weight-medium);
  font-size: var(--text-lg);
  padding: var(--space-2) 0;
  border-bottom: 1px solid var(--color-border);
  transition: var(--transition-colors);
}

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

.mobile-menu .btn {
  margin-top: var(--space-4);
  border-bottom: none;
}

/* Footer Layout */
footer {
  background-color: var(--color-primary-dark);
  color: rgba(255, 255, 255, 0.7);
  padding-bottom: var(--space-8);
  position: relative;
  overflow: hidden;
}

footer .footer-wave {
  width: 100%;
  height: auto;
  line-height: 0;
  transform: rotate(180deg);
  background-color: transparent;
}

footer .footer-wave svg {
  fill: var(--color-white);
  width: 100%;
  height: auto;
}

footer a {
  color: rgba(255, 255, 255, 0.7);
  transition: var(--transition-colors);
}

footer a:hover {
  color: var(--color-white);
}

.footer-content {
  padding-top: var(--space-12);
  padding-bottom: var(--space-12);
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-10);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand .footer-logo {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
}

.footer-brand .footer-logo img {
  filter: brightness(0) invert(1);
}

.footer-brand .footer-logo-text {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: var(--weight-bold);
  color: var(--color-white);
}

.footer-brand p {
  font-size: var(--text-sm);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-5);
  max-width: 300px;
}

.footer-socials {
  display: flex;
  gap: var(--space-4);
}

.footer-socials a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.1);
  color: var(--color-white);
  transition: var(--transition-base);
}

.footer-socials a:hover {
  background-color: var(--color-accent);
  transform: translateY(-3px);
}

.footer-socials svg {
  width: 18px;
  height: 18px;
  fill: currentColor;
}

.footer-links-title {
  color: var(--color-white);
  font-family: var(--font-body);
  font-weight: var(--weight-bold);
  font-size: var(--text-base);
  margin-bottom: var(--space-5);
  position: relative;
}

.footer-links-title::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 0;
  width: 30px;
  height: 2px;
  background-color: var(--color-accent);
}

.footer-links-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  font-size: var(--text-sm);
}

.footer-contact-info {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  font-size: var(--text-sm);
}

.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
}

.footer-contact-item svg {
  width: 18px;
  height: 18px;
  color: var(--color-accent);
  flex-shrink: 0;
  margin-top: 2px;
}

.footer-bottom {
  padding-top: var(--space-8);
  text-align: center;
  font-size: var(--text-xs);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.footer-bottom-links {
  display: flex;
  justify-content: center;
  gap: var(--space-6);
  flex-wrap: wrap;
}

/* Responsive Layout Adjustments */
@media (min-width: 768px) {
  .footer-content {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-bottom {
    flex-direction: row;
    justify-content: space-between;
  }
}

@media (min-width: 1024px) {
  .nav-links {
    display: flex;
  }
  nav .btn-devis {
    display: inline-flex;
    padding: 10px 20px;
    font-size: var(--text-sm);
  }
  .hamburger {
    display: none;
  }
  .footer-content {
    grid-template-columns: 2fr 1fr 1fr 2fr;
  }
}

/* Internal Pages Hero */
.hero-internal {
  position: relative;
  min-height: 45vh;
  display: flex;
  align-items: center;
  color: var(--color-white);
  padding-top: 110px;
  padding-bottom: var(--space-10);
  background-color: var(--color-primary-dark);
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

.hero-internal-content {
  position: relative;
  z-index: var(--z-raised);
  max-width: 800px;
}

.hero-internal-title {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: var(--weight-bold);
  margin-bottom: var(--space-3);
  color: var(--color-white);
}

.hero-internal-subtitle {
  font-size: var(--text-base);
  color: rgba(255, 255, 255, 0.85);
  line-height: var(--leading-relaxed);
  max-width: 600px;
}

@media (min-width: 768px) {
  .hero-internal {
    min-height: 50vh;
    padding-top: 120px;
  }
  .hero-internal-title {
    font-size: var(--text-5xl);
  }
  .hero-internal-subtitle {
    font-size: var(--text-lg);
  }
}