/* ==========================================================================
   TitanPrint 3D - MONUMENTAL FULL-WIDTH Industrial Design System
   ========================================================================== */

:root {
  /* Color Palette */
  --bg-dark: #07090E;
  --bg-card: #0F141F;
  --bg-card-hover: #161D2C;
  --bg-glass: rgba(15, 20, 31, 0.85);
  --border-color: rgba(255, 255, 255, 0.08);
  --border-active: rgba(0, 240, 255, 0.5);
  
  --primary: #00F0FF;
  --primary-glow: rgba(0, 240, 255, 0.3);
  --secondary: #0088FF;
  --accent-amber: #FFB800;
  --accent-orange: #FF5500;
  --accent-green: #00E676;
  
  --text-main: #F8FAFC;
  --text-muted: #94A3B8;
  --text-dim: #64748B;
  
  /* Fonts */
  --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Layout & Spacing */
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 28px;
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  background-color: var(--bg-dark);
  color: var(--text-main);
  font-family: var(--font-body);
  line-height: 1.5;
  overflow-x: hidden;
  width: 100vw;
  background-image: 
    radial-gradient(circle at 10% 20%, rgba(0, 240, 255, 0.06) 0%, transparent 50%),
    radial-gradient(circle at 90% 70%, rgba(0, 136, 255, 0.06) 0%, transparent 50%),
    linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  background-size: 100% 100%, 100% 100%, 60px 60px, 60px 60px;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 800;
  line-height: 1.1;
  color: #FFFFFF;
  letter-spacing: -0.02em;
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: #70F8FF;
}

/* FULL-WIDTH CONTAINER */
.container {
  width: 100%;
  max-width: 100%;
  padding: 0 4vw;
  margin: 0 auto;
}

/* Header & Nav */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: var(--bg-glass);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-color);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  font-family: var(--font-heading);
  font-size: 1.6rem;
  font-weight: 900;
  color: #FFF;
  letter-spacing: -1px;
}

.logo-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #000;
  font-weight: 900;
  font-size: 1.1rem;
  box-shadow: 0 0 20px var(--primary-glow);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
}

.nav-links a {
  color: var(--text-muted);
  font-weight: 600;
  font-size: 1rem;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  padding: 0.75rem 1.5rem;
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  border: none;
  outline: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #050B14;
  box-shadow: 0 4px 20px var(--primary-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(0, 240, 255, 0.45);
  color: #000;
}

.btn-outline {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-main);
  border: 1px solid var(--border-color);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--border-active);
  color: #FFF;
}

.btn-lg {
  padding: 1rem 2rem;
  font-size: 1.1rem;
  border-radius: var(--radius-md);
}

/* Badges & Tags */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 1rem;
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 700;
  background: rgba(0, 240, 255, 0.12);
  color: var(--primary);
  border: 1px solid rgba(0, 240, 255, 0.3);
}

.badge-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-green);
  box-shadow: 0 0 10px var(--accent-green);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { opacity: 0.4; transform: scale(0.9); }
  50% { opacity: 1; transform: scale(1.25); }
  100% { opacity: 0.4; transform: scale(0.9); }
}

/* Hero Section */
.hero {
  padding: 95px 0 60px;
  position: relative;
  width: 100%;
}

/* TOP HERO SLIDESHOW SHOWCASE BANNER (UN-CROPPED EXPANSIVE ASPECT RATIO) */
.hero-slideshow-wrap {
  margin-bottom: 3rem;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 25px 65px rgba(0, 0, 0, 0.7);
}

.slideshow-header {
  padding: 1rem 1.8rem;
  background: rgba(4, 6, 10, 0.85);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  gap: 1.2rem;
  flex-wrap: wrap;
}

.slideshow-title {
  font-size: 0.95rem;
  color: var(--text-muted);
  font-weight: 500;
}

.slideshow-container {
  position: relative;
  height: clamp(520px, 68vh, 760px);
  overflow: hidden;
  background: #030508;
}

.slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 0.6s ease-in-out;
  pointer-events: none;
  display: flex;
  align-items: center;
  justify-content: center;
}

.slide.active {
  opacity: 1;
  pointer-events: all;
}

.slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center center;
  display: block;
}

.slide-caption {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 2.5rem 3rem 2rem;
  background: linear-gradient(0deg, rgba(3, 5, 8, 0.96) 0%, rgba(3, 5, 8, 0.7) 60%, rgba(3, 5, 8, 0) 100%);
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.slide-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--primary);
  letter-spacing: 1px;
}

.slide-caption h3 {
  font-size: clamp(1.6rem, 2.5vw, 2.4rem);
  color: #FFF;
}

.slide-caption p {
  color: var(--text-muted);
  font-size: 1.05rem;
  max-width: 850px;
}

/* Slide Nav Controls */
.slide-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 54px;
  height: 54px;
  border-radius: 50%;
  background: rgba(5, 8, 14, 0.75);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border-color);
  color: #FFF;
  font-size: 1.5rem;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
  transition: all var(--transition-fast);
}

.slide-nav:hover {
  background: var(--primary);
  color: #000;
  border-color: var(--primary);
  box-shadow: 0 0 20px var(--primary-glow);
}

.slide-nav.prev { left: 2rem; }
.slide-nav.next { right: 2rem; }

.slide-dots {
  position: absolute;
  bottom: 1.5rem;
  right: 3rem;
  display: flex;
  gap: 0.6rem;
  z-index: 10;
}

.slide-dots .dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.3);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.slide-dots .dot.active {
  background: var(--primary);
  box-shadow: 0 0 12px var(--primary-glow);
  width: 32px;
  border-radius: 20px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 4rem;
  align-items: center;
  width: 100%;
}

.hero-content h1 {
  font-size: clamp(3rem, 5vw, 5.5rem);
  letter-spacing: -2px;
  margin: 0.8rem 0;
  line-height: 1.05;
  background: linear-gradient(180deg, #FFFFFF 0%, #CBD5E1 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-content h1 span {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: clamp(1.1rem, 1.4vw, 1.35rem);
  color: var(--text-muted);
  margin-bottom: 1.8rem;
  max-width: 780px;
  line-height: 1.5;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 1.2rem;
  margin-bottom: 2.5rem;
  flex-wrap: wrap;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  padding-top: 1.8rem;
  border-top: 1px solid var(--border-color);
}

.stat-item h4 {
  font-size: clamp(2rem, 3vw, 3.2rem);
  color: var(--primary);
  font-family: var(--font-mono);
  line-height: 1;
  margin-bottom: 0.3rem;
}

.stat-item p {
  font-size: 0.9rem;
  color: var(--text-muted);
  font-weight: 500;
}

/* Hero Visual Card */
.hero-visual {
  position: relative;
  width: 100%;
}

.visual-card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.7);
  transition: border-color var(--transition-normal);
  height: clamp(420px, 50vh, 560px);
}

.visual-card:hover {
  border-color: var(--border-active);
}

.visual-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.visual-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 2rem;
  background: linear-gradient(0deg, rgba(7, 9, 14, 0.98) 0%, rgba(7, 9, 14, 0) 100%);
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
}

.model-tag {
  background: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(12px);
  padding: 0.6rem 1.2rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  font-family: var(--font-mono);
  font-size: 0.95rem;
}

.model-tag .accent {
  color: var(--primary);
}

/* Section Common */
.section {
  padding: 80px 0;
  position: relative;
}

.section-header {
  text-align: center;
  max-width: 850px;
  margin: 0 auto 3.5rem;
}

.section-header h2 {
  font-size: clamp(2.2rem, 3.5vw, 3.8rem);
  margin-top: 0.75rem;
  margin-bottom: 1rem;
  letter-spacing: -1.5px;
}

.section-header p {
  color: var(--text-muted);
  font-size: 1.15rem;
  line-height: 1.5;
}

/* Process Section */
.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.8rem;
  width: 100%;
}

.process-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 2.2rem 1.8rem;
  position: relative;
  transition: all var(--transition-normal);
}

.process-card:hover {
  transform: translateY(-6px);
  background: var(--bg-card-hover);
  border-color: var(--border-active);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.5);
}

.step-num {
  font-family: var(--font-mono);
  font-size: 3rem;
  font-weight: 900;
  color: rgba(255, 255, 255, 0.08);
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  line-height: 1;
}

.step-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-sm);
  background: rgba(0, 240, 255, 0.1);
  border: 1px solid rgba(0, 240, 255, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  color: var(--primary);
  margin-bottom: 1.5rem;
}

.process-card h3 {
  font-size: 1.35rem;
  margin-bottom: 0.75rem;
}

.process-card p {
  color: var(--text-muted);
  font-size: 1rem;
  line-height: 1.5;
}

.process-card ul {
  margin-top: 1rem;
  padding-left: 1.2rem;
  color: var(--text-dim);
  font-size: 0.9rem;
}

.process-card ul li {
  margin-bottom: 0.4rem;
}

/* Slicing Tech Interactive Section */
.slicer-demo {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 3rem;
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 3.5rem;
  align-items: center;
  width: 100%;
}

.slicer-view {
  background: #04060A;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  height: 460px;
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.slicer-grid-bg {
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(rgba(0, 240, 255, 0.12) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 240, 255, 0.12) 1px, transparent 1px);
  background-size: 40px 40px;
  opacity: 0.7;
}

.slicer-canvas-wrap {
  position: relative;
  width: 340px;
  height: 340px;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Interactive Model Slicer Blocks */
.model-parts-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: repeat(3, 1fr);
  gap: 8px;
  width: 300px;
  height: 330px;
  transition: all 0.4s ease;
}

.part-block {
  background: rgba(0, 136, 255, 0.25);
  border: 2px dashed var(--primary);
  border-radius: 6px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--primary);
  position: relative;
  transition: all 0.3s ease;
  cursor: pointer;
}

.part-block:hover {
  background: rgba(0, 240, 255, 0.45);
  transform: scale(1.08);
  z-index: 5;
  box-shadow: 0 0 25px var(--primary-glow);
}

.part-block .pin-dot {
  position: absolute;
  width: 7px;
  height: 7px;
  background: var(--accent-amber);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--accent-amber);
}

.pin-dot.top-right { top: 5px; right: 5px; }
.pin-dot.bottom-left { bottom: 5px; left: 5px; }

.slicer-controls {
  display: flex;
  flex-direction: column;
  gap: 1.8rem;
}

.control-group {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.control-group label {
  display: flex;
  justify-content: space-between;
  font-weight: 700;
  font-size: 1.05rem;
}

.control-group label span {
  font-family: var(--font-mono);
  color: var(--primary);
  font-size: 1.1rem;
}

input[type="range"] {
  width: 100%;
  accent-color: var(--primary);
  background: rgba(255, 255, 255, 0.1);
  height: 7px;
  border-radius: 4px;
  outline: none;
}

.joint-selector {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.6.5rem;
}

.joint-opt {
  padding: 0.75rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  text-align: center;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.joint-opt:hover, .joint-opt.active {
  border-color: var(--primary);
  background: rgba(0, 240, 255, 0.15);
  color: #FFF;
}

/* Showcase Gallery Section */
.gallery-filters {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 3rem;
  flex-wrap: wrap;
}

.filter-btn {
  padding: 0.7rem 1.5rem;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-color);
  border-radius: 50px;
  color: var(--text-muted);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.filter-btn:hover, .filter-btn.active {
  background: var(--primary);
  border-color: var(--primary);
  color: #050B14;
  font-weight: 700;
  box-shadow: 0 5px 18px var(--primary-glow);
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  width: 100%;
}

.gallery-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition-normal);
  cursor: pointer;
}

.gallery-card:hover {
  transform: translateY(-8px);
  border-color: var(--border-active);
  box-shadow: 0 20px 45px rgba(0, 0, 0, 0.6);
}

.gallery-img-wrap {
  position: relative;
  height: 340px;
  overflow: hidden;
}

.gallery-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.gallery-card:hover .gallery-img-wrap img {
  transform: scale(1.08);
}

.gallery-overlay-badge {
  position: absolute;
  top: 1rem;
  left: 1rem;
  background: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(10px);
  padding: 0.4rem 0.85rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--primary);
  font-weight: 700;
}

.gallery-content {
  padding: 1.6rem;
}

.gallery-content h3 {
  font-size: 1.35rem;
  margin-bottom: 0.6rem;
}

.gallery-content p {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 1rem;
  line-height: 1.5;
}

.gallery-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 1rem;
  border-top: 1px solid var(--border-color);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-dim);
}

/* Quote Estimator Section */
.calculator-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 3.5rem;
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 3.5rem;
  width: 100%;
}

.calc-inputs {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.field-group {
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}

.field-group label {
  font-weight: 700;
  font-size: 1.05rem;
  display: flex;
  justify-content: space-between;
}

.field-group label .val-display {
  color: var(--primary);
  font-family: var(--font-mono);
  font-size: 1.15rem;
}

.select-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.85rem;
}

.select-btn {
  padding: 0.85rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-main);
  text-align: center;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.select-btn:hover, .select-btn.active {
  background: rgba(0, 240, 255, 0.15);
  border-color: var(--primary);
  color: #FFF;
}

.calc-summary {
  background: #04060A;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 2.5rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.summary-header h3 {
  font-size: 1.5rem;
  margin-bottom: 1.8rem;
  padding-bottom: 0.85rem;
  border-bottom: 1px solid var(--border-color);
}

.summary-list {
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}

.summary-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 1rem;
  color: var(--text-muted);
}

.summary-row .val {
  font-family: var(--font-mono);
  color: #FFF;
  font-weight: 700;
  font-size: 1.1rem;
}

.summary-total {
  margin-top: 2rem;
  padding-top: 1.6rem;
  border-top: 1px dashed var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
}

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

.summary-total h2 {
  font-size: clamp(2.2rem, 3vw, 3.5rem);
  color: var(--primary);
  font-family: var(--font-mono);
}

/* FAQ Accordion */
.faq-grid {
  max-width: 950px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color var(--transition-fast);
}

.faq-item.active {
  border-color: var(--border-active);
}

.faq-question {
  padding: 1.4rem 1.8rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  font-weight: 700;
  font-size: 1.15rem;
}

.faq-toggle {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--transition-fast);
}

.faq-item.active .faq-toggle {
  transform: rotate(180deg);
  background: var(--primary);
  color: #000;
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.35s ease;
  padding: 0 1.8rem;
  color: var(--text-muted);
  font-size: 1rem;
  line-height: 1.6;
}

.faq-item.active .faq-answer {
  max-height: 350px;
  padding: 0 1.8rem 1.4rem;
}

/* Contact / Quote Modal */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(4, 6, 10, 0.88);
  backdrop-filter: blur(16px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-normal);
}

.modal-backdrop.active {
  opacity: 1;
  pointer-events: all;
}

.modal-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 720px;
  max-height: 90vh;
  overflow-y: auto;
  padding: 2.5rem;
  position: relative;
  transform: scale(0.95);
  transition: transform var(--transition-normal);
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.8);
}

.modal-backdrop.active .modal-card {
  transform: scale(1);
}

.modal-close {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  border: none;
  color: #FFF;
  font-size: 1.4rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-close:hover {
  background: rgba(255, 255, 255, 0.18);
}

/* Dropzone Simulator */
.dropzone {
  border: 2px dashed rgba(0, 240, 255, 0.4);
  background: rgba(0, 240, 255, 0.03);
  border-radius: var(--radius-md);
  padding: 2.5rem 1.5rem;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-fast);
  margin-bottom: 1.5rem;
}

.dropzone:hover, .dropzone.dragover {
  border-color: var(--primary);
  background: rgba(0, 240, 255, 0.1);
}

.dropzone-icon {
  font-size: 2.5rem;
  color: var(--primary);
  margin-bottom: 0.75rem;
}

.file-preview {
  display: none;
  background: #04060A;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 1rem;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.5rem;
}

.file-preview.active {
  display: flex;
}

.file-info {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  font-family: var(--font-mono);
  font-size: 0.9rem;
}

/* Form Controls */
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.form-control {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 0.85rem 1rem;
  color: #FFF;
  font-family: var(--font-body);
  font-size: 1rem;
  outline: none;
  width: 100%;
}

.form-control:focus {
  border-color: var(--primary);
  background: rgba(255, 255, 255, 0.08);
}

textarea.form-control {
  resize: vertical;
  min-height: 100px;
}

/* Toast */
.toast {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  background: var(--bg-card);
  border: 1px solid var(--accent-green);
  border-radius: var(--radius-md);
  padding: 1rem 1.6rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  color: #FFF;
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.6);
  z-index: 3000;
  transform: translateY(100px);
  opacity: 0;
  transition: all var(--transition-normal);
}

.toast.active {
  transform: translateY(0);
  opacity: 1;
}

/* Footer */
.footer {
  border-top: 1px solid var(--border-color);
  background: #030407;
  padding: 60px 0 30px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2.5fr repeat(3, 1.2fr);
  gap: 3.5rem;
  margin-bottom: 3rem;
  width: 100%;
}

.footer-brand p {
  color: var(--text-muted);
  font-size: 1rem;
  margin-top: 1.2rem;
  max-width: 440px;
  line-height: 1.6;
}

.footer-col h4 {
  font-size: 1.1rem;
  margin-bottom: 1.2rem;
}

.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.footer-col a {
  color: var(--text-muted);
  font-size: 0.95rem;
}

.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid var(--border-color);
  color: var(--text-dim);
  font-size: 0.9rem;
}

/* Responsive Scaling */
@media (max-width: 1400px) {
  .gallery-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 1024px) {
  .hero-grid,
  .slicer-demo,
  .calculator-card {
    grid-template-columns: 1fr;
  }

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

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

@media (max-width: 640px) {
  .nav-links { display: none; }
  .process-grid { grid-template-columns: 1fr; }
  .gallery-grid { grid-template-columns: 1fr; }
  .hero-stats { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .container { padding: 0 1.5rem; }
  .slideshow-container { height: 380px; }
}