/* ============================================
   AI-ERP Component Styles
   ============================================ */

/* --- Skip to content --- */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-4);
  z-index: 999;
  padding: var(--space-2) var(--space-4);
  background: var(--color-purple);
  color: #fff;
  border-radius: var(--radius-sm);
  font-size: var(--text-sm);
}
.skip-link:focus {
  top: var(--space-4);
}

/* ===========================================
   NAVIGATION
   =========================================== */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-nav);
  padding: var(--space-4) 0;
  transition: background var(--transition-normal),
              box-shadow var(--transition-normal),
              padding var(--transition-normal);
}

.nav--scrolled {
  background: rgba(10, 10, 15, 0.85);
  backdrop-filter: blur(16px) saturate(1.2);
  -webkit-backdrop-filter: blur(16px) saturate(1.2);
  box-shadow: 0 1px 0 var(--color-border);
  padding: var(--space-3) 0;
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex-shrink: 0;
}

.nav__logo svg {
  width: 36px;
  height: 36px;
}

.nav__logo-text {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: var(--text-lg);
  letter-spacing: 0.04em;
  background: linear-gradient(135deg, var(--color-gold), var(--color-gold-bright));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}

.nav__link {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  transition: color var(--transition-fast);
  cursor: pointer;
  white-space: nowrap;
}

.nav__link:hover {
  color: var(--color-gold);
}

.nav__actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

/* Language Switcher */
.lang-switcher {
  position: relative;
}

.lang-switcher__btn {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-1) var(--space-3);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  transition: color var(--transition-fast),
              border-color var(--transition-fast);
  cursor: pointer;
}

.lang-switcher__btn:hover {
  color: var(--color-text);
  border-color: var(--color-border-hover);
}

.lang-switcher__btn svg {
  width: 14px;
  height: 14px;
  transition: transform var(--transition-fast);
}

.lang-switcher.open .lang-switcher__btn svg {
  transform: rotate(180deg);
}

.lang-switcher__dropdown {
  position: absolute;
  top: calc(100% + var(--space-2));
  right: 0;
  min-width: 100px;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  opacity: 0;
  visibility: hidden;
  transform: scale(0.95);
  transition: opacity var(--transition-fast),
              visibility var(--transition-fast),
              transform var(--transition-fast);
  box-shadow: var(--shadow-lg);
}

.lang-switcher.open .lang-switcher__dropdown {
  opacity: 1;
  visibility: visible;
  transform: scale(1);
}

.lang-switcher__option {
  display: block;
  width: 100%;
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  text-align: left;
  transition: background var(--transition-fast),
              color var(--transition-fast);
  cursor: pointer;
}

.lang-switcher__option:hover {
  background: var(--color-surface-hover);
  color: var(--color-text);
}

.lang-switcher__option.active {
  color: var(--color-gold);
}

/* Mobile hamburger */
.nav__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: var(--space-2);
  cursor: pointer;
}

.nav__hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: transform var(--transition-fast),
              opacity var(--transition-fast);
}

.nav__hamburger.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav__hamburger.active span:nth-child(2) {
  opacity: 0;
}
.nav__hamburger.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-size: var(--text-sm);
  font-weight: 600;
  border-radius: var(--radius-full);
  transition: background var(--transition-fast),
              box-shadow var(--transition-fast),
              transform var(--transition-fast),
              border-color var(--transition-fast);
  white-space: nowrap;
  cursor: pointer;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn:active {
  transform: translateY(0);
}

.btn--primary {
  background: var(--color-purple);
  color: #fff;
  box-shadow: 0 0 0 0 rgba(99, 102, 241, 0);
}

.btn--primary:hover {
  background: var(--color-purple-hover);
  box-shadow: var(--shadow-purple);
}

.btn--outline-gold {
  background: transparent;
  color: var(--color-gold);
  border: 1px solid var(--color-gold);
}

.btn--outline-gold:hover {
  background: var(--color-gold-dim);
  box-shadow: var(--shadow-gold);
}

.btn--large {
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-base);
}

.btn--nav {
  padding: var(--space-2) var(--space-5);
}

/* Mobile menu - hidden by default on desktop */
.nav__mobile-menu {
  display: none;
}

/* ===========================================
   HERO SECTION
   =========================================== */
.hero {
  position: relative;
  min-height: 100vh;
  display: grid;
  place-items: center;
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero__bg canvas {
  width: 100%;
  height: 100%;
  display: block;
  position: relative;
  z-index: 0;
}

.hero__bg::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    radial-gradient(ellipse 60% 50% at 20% 30%, rgba(201, 168, 108, 0.06) 0%, transparent 70%),
    radial-gradient(ellipse 50% 40% at 80% 60%, rgba(99, 102, 241, 0.05) 0%, transparent 70%),
    radial-gradient(ellipse 70% 50% at 50% 80%, rgba(212, 175, 55, 0.04) 0%, transparent 60%);
  animation: hero-ambient 12s ease-in-out infinite alternate;
  pointer-events: none;
}

@keyframes hero-ambient {
  0% { opacity: 0.6; transform: scale(1) translate(0, 0); }
  33% { opacity: 1; transform: scale(1.05) translate(2%, -1%); }
  66% { opacity: 0.8; transform: scale(0.98) translate(-1%, 2%); }
  100% { opacity: 1; transform: scale(1.02) translate(1%, -1%); }
}

.hero__bg::after {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 2;
  background: linear-gradient(
    180deg,
    rgba(10, 10, 15, 0.15) 0%,
    rgba(10, 10, 15, 0.25) 40%,
    rgba(10, 10, 15, 0.6) 80%,
    rgba(10, 10, 15, 0.95) 100%
  );
  pointer-events: none;
}

.hero__content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 900px;
  margin-inline: auto;
  padding: var(--space-32) var(--content-padding) var(--space-16);
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-1) var(--space-4);
  margin-bottom: var(--space-8);
  font-size: var(--text-xs);
  color: var(--color-gold);
  border: 1px solid rgba(201, 168, 108, 0.3);
  border-radius: var(--radius-full);
  background: rgba(201, 168, 108, 0.08);
}

.hero__badge-dot {
  width: 6px;
  height: 6px;
  background: var(--color-gold);
  border-radius: 50%;
  animation: pulse-dot 2s ease-in-out infinite;
}

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

.hero__title {
  font-size: var(--text-hero);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: var(--space-6);
  background: linear-gradient(135deg, #fff 30%, var(--color-gold) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__subtitle {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  max-width: 600px;
  margin-inline: auto;
  margin-bottom: var(--space-10);
  line-height: 1.8;
}

.hero__actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
  flex-wrap: wrap;
}

/* Glow line separator */
.hero__glow-line {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg,
    transparent,
    var(--color-gold) 20%,
    var(--color-gold-bright) 50%,
    var(--color-gold) 80%,
    transparent
  );
  opacity: 0.3;
  z-index: 2;
}

/* ===========================================
   SECTION COMMON
   =========================================== */
.section {
  padding: clamp(var(--space-16), 8vw, var(--space-32)) 0;
  position: relative;
}

.section__header {
  text-align: center;
  margin-bottom: clamp(var(--space-10), 5vw, var(--space-16));
}

.section__label {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin-bottom: var(--space-4);
}

.section__title {
  font-size: var(--text-3xl);
  font-weight: 800;
  color: var(--color-text);
  margin-bottom: var(--space-4);
}

.section__desc {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  max-width: 560px;
  margin-inline: auto;
}

/* Reveal animations — default visible, GSAP sets initial opacity to 0 */
.reveal {
  will-change: opacity;
}

.reveal-clip {
  will-change: opacity, clip-path;
}

/* ===========================================
   FEATURE CARDS
   =========================================== */
.features__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-5);
}

.feature-card {
  position: relative;
  padding: var(--space-8);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: border-color var(--transition-fast),
              box-shadow var(--transition-fast),
              background var(--transition-fast);
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--color-gold), transparent);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.feature-card:hover {
  border-color: rgba(201, 168, 108, 0.2);
  background: var(--color-surface-hover);
  box-shadow: var(--shadow-gold);
}

.feature-card:hover::before {
  opacity: 1;
}

.feature-card__icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-5);
  background: var(--color-gold-dim);
  border-radius: var(--radius-md);
  color: var(--color-gold);
}

.feature-card__icon svg {
  width: 24px;
  height: 24px;
}

.feature-card__title {
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-3);
}

.feature-card__desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* ===========================================
   CHAT DEMO SECTION
   =========================================== */
.chat-demo {
  background: var(--color-bg-elevated);
}

.chat-demo__wrapper {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: var(--space-12);
  align-items: center;
}

.chat-demo__text {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.chat-demo__text .section__title {
  text-align: left;
}

.chat-demo__text .section__desc {
  text-align: left;
  margin-inline: 0;
}

.chat-demo__features {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.chat-demo__feature {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.chat-demo__feature svg {
  width: 18px;
  height: 18px;
  color: var(--color-gold);
  flex-shrink: 0;
}

/* Chat Interface Mock */
.chat-interface {
  position: relative;
  background: var(--color-bg);
  border: 1px solid rgba(201, 168, 108, 0.2);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 0 60px rgba(201, 168, 108, 0.08);
}

.chat-interface__header {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-5);
  border-bottom: 1px solid var(--color-border);
  background: rgba(255, 255, 255, 0.02);
}

.chat-interface__avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-gold), var(--color-gold-bright));
  display: flex;
  align-items: center;
  justify-content: center;
}

.chat-interface__avatar svg {
  width: 18px;
  height: 18px;
  color: #0a0a0f;
}

.chat-interface__header-info {
  flex: 1;
}

.chat-interface__header-name {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text);
}

.chat-interface__header-status {
  font-size: var(--text-xs);
  color: var(--color-success);
}

.chat-interface__role-badge {
  padding: var(--space-1) var(--space-3);
  font-size: var(--text-xs);
  color: var(--color-gold);
  border: 1px solid rgba(201, 168, 108, 0.3);
  border-radius: var(--radius-full);
  background: rgba(201, 168, 108, 0.08);
}

.chat-interface__messages {
  padding: var(--space-5);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  min-height: 320px;
}

.chat-msg {
  display: flex;
  gap: var(--space-3);
  max-width: 88%;
}

.chat-msg--user {
  align-self: flex-end;
  flex-direction: row-reverse;
}

.chat-msg__avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-xs);
  font-weight: 600;
}

.chat-msg--user .chat-msg__avatar {
  background: var(--color-purple-dim);
  color: var(--color-purple);
}

.chat-msg--ai .chat-msg__avatar {
  background: linear-gradient(135deg, var(--color-gold), var(--color-gold-bright));
  color: #0a0a0f;
}

.chat-msg__bubble {
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  line-height: 1.6;
}

.chat-msg--user .chat-msg__bubble {
  background: var(--color-purple);
  color: #fff;
  border-bottom-right-radius: var(--space-1);
}

.chat-msg--ai .chat-msg__bubble {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
  border-bottom-left-radius: var(--space-1);
}

/* Thinking indicator */
.chat-msg__thinking {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}

.thinking-dots {
  display: flex;
  gap: 4px;
}

.thinking-dots span {
  width: 5px;
  height: 5px;
  background: var(--color-gold);
  border-radius: 50%;
  animation: thinking-bounce 1.4s ease-in-out infinite;
}

.thinking-dots span:nth-child(2) { animation-delay: 0.16s; }
.thinking-dots span:nth-child(3) { animation-delay: 0.32s; }

@keyframes thinking-bounce {
  0%, 80%, 100% { opacity: 0.3; transform: scale(0.8); }
  40% { opacity: 1; transform: scale(1); }
}

/* Structured response */
.chat-msg__structured {
  margin-top: var(--space-3);
  padding: var(--space-3) var(--space-4);
  background: rgba(201, 168, 108, 0.05);
  border: 1px solid rgba(201, 168, 108, 0.15);
  border-radius: var(--radius-sm);
  font-size: var(--text-xs);
}

.chat-msg__structured-row {
  display: flex;
  justify-content: space-between;
  padding: var(--space-1) 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.chat-msg__structured-row:last-child {
  border-bottom: none;
}

.chat-msg__structured-label {
  color: var(--color-text-faint);
}

.chat-msg__structured-value {
  color: var(--color-gold);
  font-weight: 500;
  font-variant-numeric: tabular-nums;
}

.chat-interface__input {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-5);
  border-top: 1px solid var(--color-border);
}

.chat-interface__input-field {
  flex: 1;
  padding: var(--space-2) var(--space-4);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  color: var(--color-text-faint);
}

.chat-interface__input-send {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-purple);
  border-radius: 50%;
  color: #fff;
  transition: background var(--transition-fast);
  cursor: pointer;
}

.chat-interface__input-send:hover {
  background: var(--color-purple-hover);
}

.chat-interface__input-send svg {
  width: 16px;
  height: 16px;
}

/* ===========================================
   INDUSTRY FIT
   =========================================== */
.industry__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-5);
}

.industry-card {
  position: relative;
  padding: var(--space-8) var(--space-6);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  text-align: center;
  transition: border-color var(--transition-fast),
              box-shadow var(--transition-fast);
}

.industry-card:hover {
  border-color: rgba(201, 168, 108, 0.2);
  box-shadow: var(--shadow-gold);
}

.industry-card__number {
  font-size: var(--text-3xl);
  font-weight: 800;
  background: linear-gradient(135deg, var(--color-gold), var(--color-gold-bright));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--space-4);
  font-variant-numeric: tabular-nums;
}

.industry-card__title {
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-3);
}

.industry-card__desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* ===========================================
   TECH STACK
   =========================================== */
.tech {
  background: var(--color-bg-elevated);
}

.tech__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-5);
}

.tech-card {
  padding: var(--space-6);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: border-color var(--transition-fast);
}

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

.tech-card__label {
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin-bottom: var(--space-4);
}

.tech-card__items {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.tech-tag {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-1) var(--space-3);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  background: rgba(255, 255, 255, 0.04);
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.tech-tag__dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  flex-shrink: 0;
}

.tech-tag__dot--blue { background: #60A5FA; }
.tech-tag__dot--green { background: #34D399; }
.tech-tag__dot--purple { background: #A78BFA; }
.tech-tag__dot--gold { background: var(--color-gold); }

/* ===========================================
   COMPARISON
   =========================================== */
.comparison__table {
  max-width: 900px;
  margin-inline: auto;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
}

.comparison__header {
  display: grid;
  grid-template-columns: 1fr 1fr;
}

.comparison__header-cell {
  padding: var(--space-5) var(--space-6);
  font-size: var(--text-sm);
  font-weight: 700;
  text-align: center;
}

.comparison__header-cell--old {
  background: rgba(255, 255, 255, 0.03);
  color: var(--color-text-faint);
}

.comparison__header-cell--new {
  background: rgba(201, 168, 108, 0.08);
  color: var(--color-gold);
}

.comparison__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-top: 1px solid var(--color-border);
}

.comparison__cell {
  padding: var(--space-4) var(--space-6);
  font-size: var(--text-sm);
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.comparison__cell--old {
  color: var(--color-text-faint);
  background: rgba(255, 255, 255, 0.01);
}

.comparison__cell--new {
  color: var(--color-text);
  background: rgba(201, 168, 108, 0.04);
}

.comparison__cell svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

.comparison__cell--old svg {
  color: var(--color-text-faint);
}

.comparison__cell--new svg {
  color: var(--color-gold);
}

/* ===========================================
   CTA SECTION
   =========================================== */
.cta-section {
  position: relative;
  text-align: center;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(201, 168, 108, 0.08) 0%, transparent 70%);
  transform: translate(-50%, -50%);
  pointer-events: none;
}

.cta-section__title {
  font-size: var(--text-3xl);
  font-weight: 800;
  margin-bottom: var(--space-4);
}

.cta-section__desc {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  max-width: 480px;
  margin-inline: auto;
  margin-bottom: var(--space-10);
}

.cta-section .btn--primary {
  font-size: var(--text-base);
  padding: var(--space-5) var(--space-12);
}

/* ===========================================
   FOOTER
   =========================================== */
.footer {
  border-top: 1px solid var(--color-border);
  padding: var(--space-12) 0 var(--space-8);
}

.footer__inner {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-8);
  flex-wrap: wrap;
}

.footer__brand {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

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

.footer__logo svg {
  width: 28px;
  height: 28px;
}

.footer__logo-text {
  font-weight: 800;
  font-size: var(--text-base);
  background: linear-gradient(135deg, var(--color-gold), var(--color-gold-bright));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.footer__tagline {
  font-size: var(--text-sm);
  color: var(--color-text-faint);
  max-width: 280px;
}

.footer__links {
  display: flex;
  gap: var(--space-12);
}

.footer__col-title {
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: var(--space-4);
}

.footer__col-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer__col-link {
  font-size: var(--text-sm);
  color: var(--color-text-faint);
  transition: color var(--transition-fast);
  cursor: pointer;
}

.footer__col-link:hover {
  color: var(--color-gold);
}

.footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: var(--space-10);
  padding-top: var(--space-6);
  border-top: 1px solid var(--color-border);
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  flex-wrap: wrap;
  gap: var(--space-3);
}

.footer__attribution a {
  color: var(--color-text-faint);
  transition: color var(--transition-fast);
}

.footer__attribution a:hover {
  color: var(--color-gold);
}

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

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

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

  .chat-demo__wrapper {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }

  .chat-demo__text .section__title,
  .chat-demo__text .section__desc {
    text-align: center;
  }

  .chat-demo__features {
    align-items: center;
  }
}

@media (max-width: 768px) {
  .nav__links {
    display: none;
  }

  .nav__hamburger {
    display: flex;
  }

  .nav__mobile-menu {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: calc(var(--z-nav) - 1);
    background: rgba(10, 10, 15, 0.97);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-8);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-normal),
                visibility var(--transition-normal);
  }

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

  .nav__mobile-menu .nav__link {
    font-size: var(--text-xl);
    color: var(--color-text);
  }

  .hero__title {
    font-size: clamp(2rem, 6vw, 3rem);
  }

  .hero__subtitle {
    font-size: var(--text-base);
  }

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

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

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

  .footer__inner {
    flex-direction: column;
  }

  .footer__links {
    flex-direction: column;
    gap: var(--space-8);
  }

  .footer__bottom {
    flex-direction: column;
    text-align: center;
  }

  .comparison__cell {
    padding: var(--space-3) var(--space-4);
    font-size: var(--text-xs);
  }

  .comparison__header-cell {
    padding: var(--space-3) var(--space-4);
    font-size: var(--text-xs);
  }
}

@media (max-width: 480px) {
  .hero__actions {
    flex-direction: column;
    width: 100%;
  }

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

/* ===========================================
   PARTICLES (CSS-based ambient glow)
   =========================================== */
.ambient-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  pointer-events: none;
  opacity: 0.15;
}

.ambient-glow--gold {
  background: var(--color-gold);
}

.ambient-glow--purple {
  background: var(--color-purple);
}

/* ===========================================
   QR CODE MODAL
   =========================================== */
.qr-modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 300ms cubic-bezier(0.16, 1, 0.3, 1),
              visibility 300ms cubic-bezier(0.16, 1, 0.3, 1);
}

.qr-modal.active {
  opacity: 1;
  visibility: visible;
}

.qr-modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.qr-modal__content {
  position: relative;
  background: #1a1a1f;
  border: 1px solid rgba(201, 168, 108, 0.2);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  text-align: center;
  max-width: 380px;
  width: 90%;
  transform: scale(0.9) translateY(20px);
  transition: transform 300ms cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.5),
              0 0 80px rgba(201, 168, 108, 0.06);
}

.qr-modal.active .qr-modal__content {
  transform: scale(1) translateY(0);
}

.qr-modal__close {
  position: absolute;
  top: var(--space-4);
  right: var(--space-4);
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-full);
  color: var(--color-text-muted);
  transition: color var(--transition-interactive),
              background var(--transition-interactive);
  cursor: pointer;
}

.qr-modal__close:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.1);
}

.qr-modal__close svg {
  width: 18px;
  height: 18px;
}

.qr-modal__img-wrapper {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: var(--space-3);
  display: inline-block;
  margin-bottom: var(--space-4);
}

.qr-modal__img-wrapper img {
  width: 240px;
  height: 240px;
  object-fit: contain;
  border-radius: var(--radius-md);
}

.qr-modal__title {
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-gold);
  margin-bottom: var(--space-2);
}

.qr-modal__desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

/* ===========================================
   CTA QR SECTION
   =========================================== */
.cta-qr {
  margin-top: var(--space-8);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
}

.cta-qr img {
  width: 180px;
  height: 180px;
  object-fit: contain;
  border-radius: var(--radius-lg);
  background: #fff;
  padding: 8px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.cta-qr__hint {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}