/* ================================================
   LIRAMAX — Premium Industrial Identity
   Design System & Styles
   ================================================ */

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

:root {
  /* Colors */
  --black: #0a0a0a;
  --black-soft: #141414;
  --dark: #1a1a1a;
  --dark-2: #222222;
  --dark-3: #2a2a2a;
  --gray-900: #333333;
  --gray-800: #444444;
  --gray-700: #555555;
  --gray-600: #666666;
  --gray-500: #888888;
  --gray-400: #999999;
  --gray-300: #bbbbbb;
  --gray-200: #dddddd;
  --gray-100: #eeeeee;
  --gray-50: #f5f5f5;
  --white: #ffffff;
  --cream: #fafaf8;

  --accent: #c8a96e;
  --accent-light: #dfc89a;
  --accent-dark: #a8884e;

  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-display: 'Playfair Display', Georgia, serif;

  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2.5rem;
  --space-xl: 4rem;
  --space-2xl: 6rem;
  --space-3xl: 8rem;
  --space-4xl: 12rem;

  /* Layout */
  --container: 1200px;
  --container-wide: 1400px;

  /* Transitions */
  --ease: cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --duration: 0.6s;
  --duration-fast: 0.3s;

  /* Radius */
  --radius: 12px;
  --radius-sm: 8px;
  --radius-lg: 20px;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-size: 16px;
}

body {
  font-family: var(--font-sans);
  background: var(--cream);
  color: var(--dark);
  line-height: 1.6;
  overflow-x: hidden;
}

img {
  max-width: 100%;
  display: block;
}

a {
  text-decoration: none;
  color: inherit;
}

ul {
  list-style: none;
}

/* --- Loader --- */
.loader {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: var(--black);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.6s var(--ease), visibility 0.6s;
}

.loader.loaded {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.loader-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
}

.loader-line {
  width: 60px;
  height: 2px;
  background: var(--gray-800);
  border-radius: 2px;
  overflow: hidden;
  position: relative;
}

.loader-line::after {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  height: 100%;
  width: 0%;
  background: var(--accent);
  animation: loaderProgress 1.5s var(--ease) forwards;
}

@keyframes loaderProgress {
  to { width: 100%; }
}

.loader-text {
  font-size: 0.75rem;
  letter-spacing: 0.4em;
  color: var(--gray-500);
  font-weight: 500;
}

/* --- Container --- */
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 2rem;
}

/* --- Navigation --- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 1.25rem 0;
  transition: all var(--duration-fast) var(--ease);
}

.header.scrolled {
  background: rgba(10, 10, 10, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: 0.75rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  z-index: 101;
}

.logo-mark {
  color: var(--accent);
  font-size: 1.1rem;
}

.logo-text {
  font-size: 1.1rem;
  font-weight: 800;
  letter-spacing: 0.2em;
  color: var(--white);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2.25rem;
}

.nav-link {
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  color: rgba(255, 255, 255, 0.6);
  transition: color var(--duration-fast) var(--ease);
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--accent);
  transition: width var(--duration-fast) var(--ease);
}

.nav-link:hover {
  color: var(--white);
}

.nav-link:hover::after {
  width: 100%;
}

.nav-link--cta {
  padding: 0.55rem 1.4rem;
  border: 1px solid rgba(200, 169, 110, 0.4);
  border-radius: 100px;
  color: var(--accent);
  transition: all var(--duration-fast) var(--ease);
}

.nav-link--cta::after {
  display: none;
}

.nav-link--cta:hover {
  background: var(--accent);
  color: var(--black);
  border-color: var(--accent);
}

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  z-index: 101;
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 1.5px;
  background: var(--white);
  transition: all var(--duration-fast) var(--ease);
  transform-origin: center;
}

.menu-toggle.active span:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}

.menu-toggle.active span:nth-child(2) {
  opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  padding: 0.9rem 2rem;
  border-radius: 100px;
  border: none;
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease);
  white-space: nowrap;
}

.btn svg {
  transition: transform var(--duration-fast) var(--ease);
}

.btn:hover svg {
  transform: translateX(3px);
}

.btn-primary {
  background: var(--accent);
  color: var(--black);
}

.btn-primary:hover {
  background: var(--accent-light);
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(200, 169, 110, 0.25);
}

.btn-dark {
  background: var(--dark);
  color: var(--white);
}

.btn-dark:hover {
  background: var(--dark-2);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
}

.btn-ghost {
  background: transparent;
  color: var(--white);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-ghost:hover {
  border-color: rgba(255, 255, 255, 0.5);
  transform: translateY(-2px);
}

.btn-white {
  background: var(--white);
  color: var(--dark);
}

.btn-white:hover {
  background: var(--gray-100);
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(255, 255, 255, 0.2);
}

.btn-ghost-white {
  background: transparent;
  color: var(--white);
  border: 1px solid rgba(255, 255, 255, 0.3);
}

.btn-ghost-white:hover {
  border-color: var(--white);
  transform: translateY(-2px);
}

.btn-full {
  width: 100%;
  justify-content: center;
}

/* --- Hero --- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 8rem 0 4rem;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background: var(--black);
}

.hero-grain {
  position: absolute;
  inset: 0;
  opacity: 0.03;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
  background-size: 200px;
}

.hero-gradient {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 70% 40%, rgba(200, 169, 110, 0.06) 0%, transparent 60%),
    radial-gradient(ellipse 60% 80% at 20% 80%, rgba(200, 169, 110, 0.03) 0%, transparent 50%);
}

.hero-content {
  position: relative;
  z-index: 2;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  color: var(--gray-400);
  text-transform: uppercase;
  margin-bottom: 2rem;
}

.hero-badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  animation: pulse 2s ease infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.hero-title {
  font-family: var(--font-sans);
  font-size: clamp(3rem, 7vw, 5.5rem);
  font-weight: 800;
  line-height: 1.05;
  color: var(--white);
  letter-spacing: -0.03em;
  margin-bottom: 1.5rem;
}

.hero-title-accent {
  font-family: var(--font-display);
  font-style: italic;
  color: var(--accent);
  font-weight: 700;
}

.hero-subtitle {
  font-size: clamp(1rem, 1.5vw, 1.2rem);
  color: var(--gray-400);
  line-height: 1.7;
  max-width: 540px;
  margin-bottom: 2.5rem;
  font-weight: 400;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  margin-bottom: 4rem;
  flex-wrap: wrap;
}

.hero-stats {
  display: flex;
  align-items: center;
  gap: 2.5rem;
  padding-top: 3rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.hero-stat {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.hero-stat-number {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--white);
  line-height: 1;
  letter-spacing: -0.02em;
}

.hero-stat-plus {
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent);
}

.hero-stat-label {
  font-size: 0.75rem;
  color: var(--gray-500);
  letter-spacing: 0.04em;
  line-height: 1.4;
  font-weight: 500;
}

.hero-stat-divider {
  width: 1px;
  height: 48px;
  background: rgba(255, 255, 255, 0.08);
}

.hero-scroll {
  position: absolute;
  bottom: 2rem;
  right: 2rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  z-index: 2;
}

.hero-scroll span {
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  color: var(--gray-600);
  text-transform: uppercase;
  writing-mode: vertical-rl;
}

.hero-scroll-line {
  width: 1px;
  height: 60px;
  background: linear-gradient(to bottom, var(--accent), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
  0%, 100% { opacity: 1; height: 60px; }
  50% { opacity: 0.5; height: 40px; }
}

/* --- Marquee --- */
.marquee-section {
  background: var(--black);
  padding: 1.25rem 0;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  overflow: hidden;
}

.marquee-track {
  display: flex;
  width: max-content;
}

.marquee-content {
  display: flex;
  align-items: center;
  gap: 2rem;
  animation: marquee 30s linear infinite;
  white-space: nowrap;
}

.marquee-content span {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.3em;
  color: rgba(255, 255, 255, 0.2);
  text-transform: uppercase;
}

.marquee-dot {
  color: var(--accent) !important;
  font-size: 0.5rem !important;
  opacity: 0.5;
}

@keyframes marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

/* --- Sections --- */
.section {
  padding: var(--space-3xl) 0;
}

.section-tag {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.5rem;
  position: relative;
  padding-left: 2rem;
}

.section-tag::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 1.2rem;
  height: 1px;
  background: var(--accent);
}

.section-title {
  font-family: var(--font-sans);
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.03em;
  color: var(--dark);
}

.section-title em {
  font-family: var(--font-display);
  font-style: italic;
  color: var(--accent-dark);
}

.section-title--center {
  text-align: center;
}

.section-desc {
  text-align: center;
  font-size: 1.05rem;
  color: var(--gray-600);
  max-width: 560px;
  margin: 1rem auto 0;
  line-height: 1.7;
}

.section-header {
  margin-bottom: var(--space-2xl);
}

/* --- Grid --- */
.section-grid {
  display: grid;
  gap: var(--space-xl);
}

.section-grid--about {
  grid-template-columns: 1fr 1fr;
  align-items: start;
}

.section-grid--diff {
  grid-template-columns: 1fr 1fr;
  align-items: start;
}

.section-grid--contact {
  grid-template-columns: 1fr 1.2fr;
  align-items: start;
}

/* --- About --- */
.section-about {
  background: var(--cream);
}

.about-text {
  font-size: 1.05rem;
  line-height: 1.8;
  color: var(--gray-700);
  margin-bottom: 1.25rem;
}

.about-certifications {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-top: 2rem;
  padding-top: 2rem;
  border-top: 1px solid var(--gray-200);
}

.cert-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--gray-800);
}

.cert-item svg {
  color: var(--accent);
  flex-shrink: 0;
}

/* --- Products --- */
.section-products {
  background: var(--white);
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.product-card {
  padding: 2.5rem 2rem;
  background: var(--cream);
  border-radius: var(--radius);
  border: 1px solid var(--gray-100);
  transition: all var(--duration) var(--ease-out);
  position: relative;
  overflow: hidden;
}

.product-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--duration) var(--ease-out);
}

.product-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.08);
  border-color: transparent;
}

.product-card:hover::before {
  transform: scaleX(1);
}

.product-card-icon {
  width: 48px;
  height: 48px;
  margin-bottom: 1.5rem;
  color: var(--accent);
}

.product-card-icon svg {
  width: 100%;
  height: 100%;
}

.product-card-title {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  color: var(--dark);
}

.product-card-desc {
  font-size: 0.9rem;
  line-height: 1.65;
  color: var(--gray-600);
  margin-bottom: 1.5rem;
}

.product-card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.product-card-tags li {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  padding: 0.3rem 0.7rem;
  background: var(--white);
  border-radius: 100px;
  color: var(--gray-700);
  border: 1px solid var(--gray-200);
}

/* --- Technology --- */
.section-tech {
  background: var(--black);
  color: var(--white);
}

.section-tech .section-title {
  color: var(--white);
}

.section-tech .section-title em {
  color: var(--accent);
}

.section-tech .section-desc {
  color: var(--gray-400);
}

.tech-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: rgba(255, 255, 255, 0.06);
  border-radius: var(--radius);
  overflow: hidden;
}

.tech-card {
  padding: 2.5rem;
  background: var(--black-soft);
  transition: all var(--duration) var(--ease);
  position: relative;
}

.tech-card:hover {
  background: var(--dark);
}

.tech-card-number {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  color: var(--accent);
  margin-bottom: 1.25rem;
}

.tech-card-title {
  font-size: 1.4rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  margin-bottom: 0.75rem;
  color: var(--white);
}

.tech-card-desc {
  font-size: 0.88rem;
  line-height: 1.6;
  color: var(--gray-500);
}

.tech-card-line {
  width: 30px;
  height: 2px;
  background: var(--accent);
  margin-top: 1.5rem;
  opacity: 0.4;
  transition: all var(--duration-fast) var(--ease);
}

.tech-card:hover .tech-card-line {
  width: 60px;
  opacity: 1;
}

/* --- Process --- */
.section-process {
  background: var(--cream);
}

.process-timeline {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  position: relative;
}

.process-timeline::before {
  content: '';
  position: absolute;
  top: 28px;
  left: 56px;
  right: 56px;
  height: 1px;
  background: var(--gray-200);
}

.process-step {
  text-align: center;
  position: relative;
}

.process-step-marker {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--white);
  border: 2px solid var(--gray-200);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.5rem;
  position: relative;
  z-index: 2;
  transition: all var(--duration-fast) var(--ease);
}

.process-step-marker span {
  font-size: 0.8rem;
  font-weight: 800;
  color: var(--gray-600);
  transition: color var(--duration-fast) var(--ease);
}

.process-step:hover .process-step-marker {
  border-color: var(--accent);
  background: var(--accent);
}

.process-step:hover .process-step-marker span {
  color: var(--black);
}

.process-step-title {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--dark);
}

.process-step-desc {
  font-size: 0.85rem;
  line-height: 1.6;
  color: var(--gray-600);
  max-width: 220px;
  margin: 0 auto;
}

/* --- Diferenciais --- */
.section-diff {
  background: var(--white);
}

.diff-lead {
  font-size: 1.05rem;
  line-height: 1.7;
  color: var(--gray-600);
  margin: 1.5rem 0 2rem;
  max-width: 400px;
}

.diff-right {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.diff-card {
  display: flex;
  align-items: flex-start;
  gap: 1.25rem;
  padding: 1.5rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--gray-100);
  background: var(--cream);
  transition: all var(--duration-fast) var(--ease);
}

.diff-card:hover {
  border-color: var(--accent);
  transform: translateX(6px);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
}

.diff-card-icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  background: var(--white);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  border: 1px solid var(--gray-100);
}

.diff-card-title {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
  color: var(--dark);
}

.diff-card-desc {
  font-size: 0.85rem;
  color: var(--gray-600);
  line-height: 1.5;
}

/* --- CTA --- */
.section-cta {
  background: var(--cream);
  padding: var(--space-xl) 0 var(--space-3xl);
}

.cta-box {
  position: relative;
  background: var(--dark);
  border-radius: var(--radius-lg);
  padding: var(--space-3xl) var(--space-xl);
  text-align: center;
  overflow: hidden;
}

.cta-bg-pattern {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 50% 80% at 50% 0%, rgba(200, 169, 110, 0.1) 0%, transparent 70%),
    radial-gradient(ellipse 60% 50% at 80% 100%, rgba(200, 169, 110, 0.05) 0%, transparent 60%);
}

.cta-title {
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  font-weight: 800;
  color: var(--white);
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
  position: relative;
  z-index: 2;
}

.cta-desc {
  font-size: 1.05rem;
  color: var(--gray-400);
  max-width: 480px;
  margin: 0 auto 2rem;
  line-height: 1.7;
  position: relative;
  z-index: 2;
}

.cta-actions {
  display: flex;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
  position: relative;
  z-index: 2;
}

/* --- Contact --- */
.section-contact {
  background: var(--cream);
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-top: 2rem;
}

.contact-info-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.9rem;
  color: var(--gray-700);
}

.contact-info-item svg {
  color: var(--accent);
  flex-shrink: 0;
}

.contact-form {
  background: var(--white);
  padding: 2.5rem;
  border-radius: var(--radius);
  border: 1px solid var(--gray-100);
}

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

.form-group {
  margin-bottom: 0;
}

.form-group:last-child {
  margin-bottom: 0;
}

.form-label {
  display: block;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--gray-800);
  margin-bottom: 0.4rem;
  text-transform: uppercase;
}

.form-input {
  width: 100%;
  padding: 0.8rem 1rem;
  font-family: var(--font-sans);
  font-size: 0.9rem;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-sm);
  background: var(--cream);
  color: var(--dark);
  outline: none;
  transition: all var(--duration-fast) var(--ease);
}

.form-input::placeholder {
  color: var(--gray-400);
}

.form-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(200, 169, 110, 0.1);
}

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

.contact-form .form-group:not(:last-child) {
  margin-bottom: 0;
}

.contact-form > .form-group {
  margin-bottom: 1rem;
}

.contact-form > .btn {
  margin-top: 0.5rem;
}

/* --- Footer --- */
.footer {
  background: var(--black);
  padding: var(--space-2xl) 0 var(--space-lg);
  color: var(--gray-400);
}

.footer-top {
  display: flex;
  justify-content: space-between;
  gap: var(--space-xl);
  padding-bottom: var(--space-xl);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.logo--footer .logo-text {
  font-size: 1rem;
}

.footer-tagline {
  font-size: 0.85rem;
  color: var(--gray-600);
  margin-top: 1rem;
  line-height: 1.6;
}

.footer-links-grid {
  display: flex;
  gap: var(--space-xl);
}

.footer-col-title {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gray-400);
  margin-bottom: 1rem;
}

.footer-list li {
  margin-bottom: 0.5rem;
}

.footer-list a {
  font-size: 0.85rem;
  color: var(--gray-600);
  transition: color var(--duration-fast);
}

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

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--space-lg);
  font-size: 0.78rem;
  color: var(--gray-700);
}

.footer-credits {
  color: var(--gray-700);
}

/* --- Animations --- */
[data-animate] {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
}

[data-animate="fade-right"] {
  transform: translateX(-30px);
}

[data-animate="fade-left"] {
  transform: translateX(30px);
}

[data-animate].visible {
  opacity: 1;
  transform: translate(0, 0);
}

/* --- Responsive --- */
@media (max-width: 1024px) {
  .products-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .process-timeline {
    grid-template-columns: repeat(2, 1fr);
    gap: 2.5rem;
  }

  .process-timeline::before {
    display: none;
  }
}

@media (max-width: 768px) {
  .section {
    padding: var(--space-2xl) 0;
  }

  .nav-links {
    position: fixed;
    inset: 0;
    background: rgba(10, 10, 10, 0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    justify-content: center;
    gap: 2rem;
    opacity: 0;
    visibility: hidden;
    transition: all var(--duration-fast) var(--ease);
  }

  .nav-links.open {
    opacity: 1;
    visibility: visible;
  }

  .nav-links .nav-link {
    font-size: 1.2rem;
    color: var(--white);
  }

  .menu-toggle {
    display: flex;
  }

  .section-grid--about,
  .section-grid--diff,
  .section-grid--contact {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }

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

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

  .process-timeline {
    grid-template-columns: 1fr;
  }

  .hero-stats {
    flex-direction: column;
    align-items: flex-start;
    gap: 1.5rem;
  }

  .hero-stat-divider {
    width: 40px;
    height: 1px;
  }

  .hero-scroll {
    display: none;
  }

  .hero-title {
    font-size: clamp(2.4rem, 8vw, 3.5rem);
  }

  .hero-actions {
    flex-direction: column;
    align-items: flex-start;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .cta-box {
    padding: var(--space-2xl) var(--space-md);
  }

  .cta-actions {
    flex-direction: column;
    align-items: center;
  }

  .footer-top {
    flex-direction: column;
    gap: var(--space-xl);
  }

  .footer-links-grid {
    flex-direction: column;
    gap: var(--space-lg);
  }

  .footer-bottom {
    flex-direction: column;
    gap: 0.5rem;
    text-align: center;
  }

  .hide-mobile {
    display: none;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 1.25rem;
  }

  .hero {
    padding: 7rem 0 3rem;
  }

  .contact-form {
    padding: 1.5rem;
  }

  .product-card {
    padding: 2rem 1.5rem;
  }
}