/* Custom Styles for Green Gold Acoustics Website */

html {
  scroll-behavior: smooth;
  scroll-padding-top: 82px;
}

section[id], div[id] {
  scroll-margin-top: 82px;
}

/* Custom Scrollbar matching the brand theme */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
::-webkit-scrollbar-track {
  background: var(--neutral-900);
}
::-webkit-scrollbar-thumb {
  background: var(--gold-600);
  border-radius: var(--radius-sm);
}
::-webkit-scrollbar-thumb:hover {
  background: var(--gold-500);
}

/* Smooth transition utility */
.transition-all {
  transition: all var(--duration-normal) var(--ease-standard);
}

/* Sticky Header with Backdrop Blur */
.sticky-header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  background: rgba(39, 34, 30, 0.95); /* Dark sepia/charcoal brown matching reference image */
  border-bottom: 1px solid var(--gold-400); /* Thin line in the gold tone of the logo */
}

/* Premium Card Hover Effect */
.model-card {
  transition: transform var(--duration-normal) var(--ease-standard),
              box-shadow var(--duration-normal) var(--ease-standard),
              border-color var(--duration-normal) var(--ease-standard);
}
.model-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--gold-400);
}

/* Overlay gradient helper for readable text on images */
.image-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, rgba(14, 12, 9, 0.95) 25%, rgba(14, 12, 9, 0.6) 65%, rgba(14, 12, 9, 0.2) 100%);
  z-index: 1;
}

.image-overlay-pb {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(14, 12, 9, 0) 30%, rgba(14, 12, 9, 0.75) 60%, rgba(14, 12, 9, 0.98) 100%);
  z-index: 1;
}

/* Micro-animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-fade-in {
  animation: fadeInUp var(--duration-slow) var(--ease-standard) forwards;
}

/* Link transitions */
.nav-link {
  position: relative;
  transition: color var(--duration-fast) var(--ease-standard);
}
.nav-link::after {
  content: '';
  position: absolute;
  width: 100%;
  transform: scaleX(0);
  height: 1px;
  bottom: -4px;
  left: 0;
  background-color: var(--gold-300);
  transform-origin: bottom right;
  transition: transform var(--duration-fast) var(--ease-standard);
}
.nav-link:hover {
  color: var(--neutral-0) !important;
}
.nav-link:hover::after {
  transform: scaleX(1);
  transform-origin: bottom left;
}

/* Zoom effect on card images */
.image-zoom-container {
  overflow: hidden;
  position: relative;
}
.image-zoom-container img {
  transition: transform var(--duration-slow) var(--ease-standard);
}
.image-zoom-container:hover img {
  transform: scale(1.05);
}

/* Layout Utilities */
.section-padding {
  padding: var(--space-16) var(--space-12);
}
@media (min-width: 768px) {
  .section-padding {
    padding: var(--space-24) var(--space-16);
  }
}

/* Form Styles */
.form-container {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  padding: var(--space-8);
}
@media (min-width: 768px) {
  .form-container {
    padding: var(--space-12);
  }
}

/* Configurator selection buttons */
.spec-button {
  background: transparent;
  border: 1px solid var(--border-default);
  border-radius: 9999px !important;
  color: var(--text-primary);
  padding: 8px 20px;
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 500;
  text-transform: uppercase;
  cursor: pointer;
  transition: all 0.25s var(--ease-standard);
}

.spec-button.active {
  background: var(--gold-600);
  border-color: var(--gold-600);
  color: var(--text-inverse);
}

.spec-button:hover:not(.active) {
  border-color: var(--gold-400);
  background: rgba(146, 115, 55, 0.05);
}

/* Global rounded button overrides and animations */
button, .spec-button, .btn {
  border-radius: 9999px !important;
}

button:hover:not(:disabled) {
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 4px 15px rgba(185, 152, 74, 0.25);
  transition: transform 0.25s var(--ease-standard), box-shadow 0.25s var(--ease-standard), background 0.25s var(--ease-standard) !important;
}

button {
  transition: transform 0.25s var(--ease-standard), box-shadow 0.25s var(--ease-standard), background 0.25s var(--ease-standard) !important;
}

/* Rounded corners and flex alignment for cards */
.model-card, .form-container, .gallery-card {
  border-radius: 16px !important;
}

.model-card {
  display: flex !important;
  flex-direction: column !important;
  height: 100% !important;
}

.model-card > div {
  height: 100% !important;
  display: flex !important;
  flex-direction: column !important;
}

input, select, textarea {
  border-radius: 8px !important;
}

input:focus, select:focus, textarea:focus {
  border-color: var(--gold-400) !important;
  box-shadow: 0 0 0 3px rgba(185, 152, 74, 0.2) !important;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

/* Fluid scroll reveal animations */
.fade-in-section {
  opacity: 0;
  transform: translateY(35px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity, transform;
}

.fade-in-section.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Vintage Analog Photographic FX (Film Grain, Warm Amber Cast, Vignette) */

.analog-photo {
  /* Warm sepia/amber cast, boosted contrast, and soft highlight roll-off */
  filter: sepia(0.38) contrast(1.15) brightness(0.94) saturate(1.15) hue-rotate(-6deg);
  transition: filter var(--duration-normal) var(--ease-standard);
}

.analog-bg-image {
  /* Filter specific to backgrounds to blend with darker parent tones */
  filter: sepia(0.35) contrast(1.15) brightness(0.92) saturate(1.12) hue-rotate(-5deg);
}

.analog-bg-image-pb {
  /* Warm-toned monochrome/sepia-toned silver-halide styling */
  filter: grayscale(100%) sepia(0.4) contrast(1.18) brightness(0.68);
}

.grain-overlay {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 2;
  opacity: 0.08; /* Subtle yet organic film grain */
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 250 250' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
  mix-blend-mode: overlay;
}

.vignette-overlay {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 3;
  /* Radial gradient simulating classic lens light falloff (vignette) */
  background: radial-gradient(circle, rgba(14, 12, 9, 0) 55%, rgba(14, 12, 9, 0.42) 100%);
  mix-blend-mode: multiply;
}



/* Prevent tab buttons from having rounded borders and jumping on hover */
.tab-container button {
  border-radius: 0 !important;
  transform: none !important;
  box-shadow: none !important;
  transition: color var(--duration-fast) var(--ease-standard) !important;
}

/* Badge readability on dark backgrounds */
#luthier span[style*="font-family"],
#relic span[style*="font-family"],
#destaque span[style*="font-family"],
#vagas span[style*="font-family"] {
  color: var(--gold-200) !important;
  border-color: rgba(185, 152, 74, 0.4) !important;
  background-color: rgba(146, 115, 55, 0.1) !important;
}

/* Page-wide organic film grain texture to cover solid backgrounds */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 9999; /* Overlay all solid backgrounds and elements */
  opacity: 0.045; /* Soft, premium tactile texture */
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 250 250' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
  mix-blend-mode: overlay;
}

/* Scroll offset for anchor links to prevent header overlap */
section[id] {
  scroll-margin-top: 98px;
}

/* Responsive visibility rules */
.mobile-only {
  display: none !important;
}
.desktop-only {
  display: flex;
}

/* Hamburger button styling */
.hamburger-btn {
  background: none;
  border: none;
  color: var(--gold-200);
  cursor: pointer;
  padding: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color var(--duration-fast) var(--ease-standard);
  justify-self: start;
}
.hamburger-btn:hover {
  color: #fff;
}

/* Mobile dropdown drawer menu styling */
.mobile-drawer {
  position: absolute;
  top: 100%; /* Sits flush under the header */
  left: 0;
  right: 0;
  z-index: 150;
  box-shadow: 0 12px 30px rgba(0,0,0,0.6);
  border-top: 1px solid rgba(185, 152, 74, 0.2);
}

.mobile-nav-link {
  font-family: var(--font-label);
  font-size: 15px;
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  color: var(--gold-200);
  text-decoration: none;
  padding: 12px 0;
  border-bottom: 1px solid rgba(255,255,255,0.03);
  transition: color var(--duration-fast) var(--ease-standard);
  display: block;
  text-align: left;
}
.mobile-nav-link:hover {
  color: #fff;
}

/* Media query for responsive layouts (tablets and mobile screens) */
@media (max-width: 991px) {
  section[id] {
    scroll-margin-top: 81px; /* Thinner header scroll margin on mobile */
  }
  .desktop-only {
    display: none !important;
  }
  .mobile-only {
    display: flex !important;
  }
  .sticky-header {
    grid-template-columns: 1fr auto 1fr !important; /* Centered logo grid */
    padding: 10px 24px !important;
  }
  .header-logo-img {
    height: 60px !important; /* Smaller logo on small screen viewports */
  }
  
  /* Stack layout panels vertically on tablets/mobiles */
  #historia, #processo, #contato, #destaque {
    flex-direction: column !important;
    padding: 48px 24px !important;
  }
  #historia div, #contato div, #destaque div {
    flex-basis: 100% !important;
    max-width: 100% !important;
  }
  
  /* Sobre Nós mobile alignment: Foto completa exibida antes do texto */
  #luthier {
    padding: 0 !important;
    flex-direction: column !important;
  }
  .luthier-photo-container {
    padding: 32px 20px 0 20px !important;
    width: 100% !important;
    max-width: 100% !important;
    flex-basis: 100% !important;
    display: flex !important;
    justify-content: center !important;
    order: 1 !important;
  }
  .luthier-photo-frame {
    height: auto !important;
    max-width: 480px !important;
    width: 100% !important;
    border-radius: 12px !important;
    position: relative !important;
    overflow: visible !important;
    background: transparent !important;
    box-shadow: none !important;
  }
  .luthier-photo-img {
    height: auto !important;
    width: 100% !important;
    max-height: none !important;
    object-fit: contain !important;
    position: static !important;
    transform: none !important;
    border-radius: 12px !important;
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.7) !important;
    display: block !important;
  }
  .luthier-text-container {
    padding: 36px 24px 48px 24px !important;
    max-width: 100% !important;
    flex-basis: 100% !important;
    order: 2 !important;
  }
  #luthier img[src*="logo-white-wordmark"] {
    margin-left: 0 !important;
  }
  
  /* O Processo mobile alignment */
  #processo div.fade-in-section {
    flex-direction: column !important;
    gap: 24px !important;
  }
  .gallery-card {
    flex-basis: 100% !important;
    width: 100% !important;
    aspect-ratio: 4/5 !important;
  }
  
  /* Hero section mobile adjustments */
  #home {
    padding: 48px 24px !important;
  }
  #home div.animate-fade-in {
    margin-left: 0 !important;
    padding: 60px 0 !important;
  }
  #home h1 {
    font-size: 52px !important; /* Scale down hero text on small screens */
  }
}