/* ==========================================================================
   POP — "POP MEAN" | PURE CUSTOMIZED WATER BOTTLE SUPPLY & BRANDING STUDIO
   Master 3D Interactive, Glassmorphic & Responsive Stylesheet (style.css)
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800&family=Space+Grotesk:wght@500;600;700&display=swap');

:root {
  /* Core Aqua & Deep Hydration Palette */
  --bg-deep: #041322;
  --bg-navy: #071e34;
  --bg-navy-light: #0c2b48;
  --bg-light: #f4f9fc;
  --bg-ivory: #ffffff;
  --bg-ice: #e8f4fa;

  /* Brand Accent Colors */
  --aqua-primary: #00b4d8;
  --aqua-bright: #00e5ff;
  --aqua-deep: #0077b6;
  --aqua-glow: rgba(0, 229, 255, 0.35);
  --cyan-soft: #90e0ef;
  --gold-accent: #f59e0b;
  --emerald-accent: #10b981;

  /* Typography Colors */
  --text-dark: #071e34;
  --text-slate: #334e68;
  --text-muted: #627d98;
  --text-light: #f0f8ff;
  --text-light-muted: #9fb3c8;

  /* Borders & Glass */
  --glass-bg-dark: rgba(10, 35, 60, 0.72);
  --glass-border-dark: rgba(0, 229, 255, 0.2);
  --glass-bg-light: rgba(255, 255, 255, 0.88);
  --glass-border-light: rgba(0, 180, 216, 0.18);

  /* Shadows & 3D Depth */
  --shadow-sm: 0 4px 16px rgba(4, 19, 34, 0.06);
  --shadow-md: 0 14px 34px rgba(4, 19, 34, 0.1);
  --shadow-lg: 0 24px 60px rgba(4, 19, 34, 0.18);
  --shadow-glow: 0 12px 35px rgba(0, 180, 216, 0.32);

  /* Layout & Transitions */
  --container-max: 1320px;
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --radius-pill: 999px;
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* ==========================================================================
   1. RESET & BASE STYLES
   ========================================================================== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  background-color: var(--bg-light);
  color: var(--text-dark);
  line-height: 1.65;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6, .font-display {
  font-family: 'Space Grotesk', sans-serif;
  line-height: 1.18;
  letter-spacing: -0.02em;
}

a {
  color: inherit;
  text-decoration: none;
  transition: all 0.28s var(--ease-out);
}

ul, ol {
  list-style: none;
}

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

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  border: none;
  outline: none;
  background: none;
}

button {
  cursor: pointer;
}

.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

/* ==========================================================================
   2. SCROLL PROGRESS BAR & FLOATING PARTICLES
   ========================================================================== */
.scroll-progress-bar {
  position: fixed;
  top: 0;
  left: 0;
  height: 3.5px;
  width: 0%;
  background: linear-gradient(90deg, var(--aqua-primary), var(--aqua-bright), var(--emerald-accent));
  z-index: 9999;
  box-shadow: 0 0 12px var(--aqua-bright);
  transition: width 0.08s linear;
}

/* ==========================================================================
   3. UNIFIED FIXED HEADER (TOPBAR + MAIN NAVBAR)
   ========================================================================== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(4, 19, 34, 0.86);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(0, 229, 255, 0.14);
  transition: all 0.35s var(--ease-out);
}

.site-header.scrolled {
  background: rgba(4, 19, 34, 0.96);
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.35);
}

/* Topbar */
.header-topbar {
  background: linear-gradient(90deg, rgba(0, 119, 182, 0.28), rgba(0, 229, 255, 0.12), rgba(0, 119, 182, 0.28));
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  height: 38px;
  overflow: hidden;
  transition: height 0.32s var(--ease-out), opacity 0.28s var(--ease-out);
}

.site-header.scrolled .header-topbar {
  height: 0;
  opacity: 0;
  border-bottom-color: transparent;
}

.topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 38px;
  font-size: 0.78rem;
  color: var(--text-light-muted);
}

.topbar-left, .topbar-right {
  display: flex;
  align-items: center;
  gap: 18px;
}

.topbar-item {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: #d9f2ff;
  font-weight: 500;
}

.topbar-item svg {
  width: 14px;
  height: 14px;
  color: var(--aqua-bright);
  flex-shrink: 0;
}

.live-status-pill {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 2px 10px;
  border-radius: var(--radius-pill);
  background: rgba(16, 185, 129, 0.15);
  border: 1px solid rgba(16, 185, 129, 0.35);
  color: #6ee7b7;
  font-weight: 600;
  font-size: 0.73rem;
}

.pulse-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--emerald-accent);
  box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7);
  animation: pulseDot 2s infinite;
}

@keyframes pulseDot {
  0% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7); }
  70% { box-shadow: 0 0 0 7px rgba(16, 185, 129, 0); }
  100% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

/* Main Navbar 3-Zone Layout */
.navbar-main {
  height: 78px;
  display: flex;
  align-items: center;
  transition: height 0.32s var(--ease-out);
}

.site-header.scrolled .navbar-main {
  height: 66px;
}

.navbar-inner {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 24px;
  width: 100%;
}

/* Brand Logo */
.brand-logo {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.brand-mark {
  width: 44px;
  height: 44px;
  border-radius: 13px;
  background: linear-gradient(135deg, var(--aqua-primary), var(--aqua-deep));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  box-shadow: 0 8px 22px rgba(0, 180, 216, 0.4);
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.3);
}

.brand-mark svg {
  width: 24px;
  height: 24px;
}

.brand-text {
  display: flex;
  flex-direction: column;
}

.brand-title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.45rem;
  font-weight: 700;
  color: #ffffff;
  letter-spacing: 0.06em;
  line-height: 1;
  display: flex;
  align-items: center;
  gap: 6px;
}

.brand-title span {
  font-size: 0.68rem;
  padding: 2px 7px;
  border-radius: 6px;
  background: rgba(0, 229, 255, 0.16);
  border: 1px solid rgba(0, 229, 255, 0.35);
  color: var(--aqua-bright);
  letter-spacing: 0.08em;
  font-weight: 700;
}

.brand-subtitle {
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--cyan-soft);
  margin-top: 3px;
  font-weight: 600;
}

/* Center Nav Links */
.nav-menu {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

.nav-item {
  position: relative;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 14px;
  border-radius: 10px;
  font-size: 0.9rem;
  font-weight: 600;
  color: rgba(240, 248, 255, 0.85);
  transition: all 0.25s var(--ease-out);
}

.nav-link svg {
  width: 14px;
  height: 14px;
  transition: transform 0.25s var(--ease-out);
}

.nav-link:hover,
.nav-link.active {
  color: #ffffff;
  background: rgba(0, 229, 255, 0.12);
}

.nav-link.active {
  box-shadow: inset 0 -2px 0 var(--aqua-bright);
}

.nav-item:hover .nav-link svg {
  transform: rotate(180deg);
}

/* Centered Glassmorphic Dropdown with Invisible Bridge */
.nav-dropdown {
  position: absolute;
  top: calc(100% + 12px);
  left: 50%;
  transform: translateX(-50%) translateY(10px);
  width: 280px;
  background: rgba(6, 24, 43, 0.96);
  backdrop-filter: blur(22px);
  border: 1px solid rgba(0, 229, 255, 0.24);
  border-radius: 16px;
  padding: 10px;
  box-shadow: 0 22px 48px rgba(0, 0, 0, 0.45);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: all 0.26s var(--ease-out);
  z-index: 100;
}

.nav-dropdown::before {
  content: '';
  position: absolute;
  top: -16px;
  left: 0;
  width: 100%;
  height: 16px;
}

.nav-item:hover .nav-dropdown {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateX(-50%) translateY(0);
}

.dropdown-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border-radius: 11px;
  color: #e2f1ff;
  transition: all 0.22s var(--ease-out);
}

.dropdown-link:hover {
  background: rgba(0, 229, 255, 0.14);
  transform: translateX(4px);
}

.dropdown-icon {
  width: 34px;
  height: 34px;
  border-radius: 9px;
  background: rgba(0, 180, 216, 0.16);
  border: 1px solid rgba(0, 229, 255, 0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--aqua-bright);
  flex-shrink: 0;
}

.dropdown-icon svg {
  width: 17px;
  height: 17px;
}

.dropdown-info strong {
  display: block;
  font-size: 0.85rem;
  color: #ffffff;
}

.dropdown-info span {
  font-size: 0.74rem;
  color: var(--text-light-muted);
}

/* Navbar Actions Right */
.navbar-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.cart-trigger-btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 14px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: #ffffff;
  font-size: 0.86rem;
  font-weight: 600;
}

.cart-trigger-btn:hover {
  background: rgba(0, 229, 255, 0.16);
  border-color: var(--aqua-bright);
}

.cart-trigger-btn svg {
  width: 18px;
  height: 18px;
  color: var(--aqua-bright);
}

.cart-count-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 21px;
  height: 21px;
  padding: 0 6px;
  border-radius: 99px;
  background: var(--aqua-bright);
  color: var(--bg-deep);
  font-size: 0.74rem;
  font-weight: 800;
}

.mobile-menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border-radius: 11px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.16);
  color: #ffffff;
  align-items: center;
  justify-content: center;
}

.mobile-menu-toggle svg {
  width: 22px;
  height: 22px;
}

/* ==========================================================================
   4. BUTTONS & BADGES
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 13px 24px;
  border-radius: 13px;
  font-weight: 700;
  font-size: 0.92rem;
  transition: all 0.28s var(--ease-out);
  cursor: pointer;
  white-space: nowrap;
}

.btn svg {
  width: 18px;
  height: 18px;
  transition: transform 0.25s var(--ease-out);
}

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

.btn-primary {
  background: linear-gradient(135deg, var(--aqua-bright) 0%, var(--aqua-primary) 55%, var(--aqua-deep) 100%);
  color: var(--bg-deep);
  box-shadow: 0 10px 26px rgba(0, 180, 216, 0.36);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 15px 32px rgba(0, 229, 255, 0.5);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.09);
  color: #ffffff;
  border: 1px solid rgba(0, 229, 255, 0.35);
  backdrop-filter: blur(10px);
}

.btn-secondary:hover {
  background: rgba(0, 229, 255, 0.18);
  border-color: var(--aqua-bright);
  transform: translateY(-2px);
}

.btn-outline-dark {
  background: transparent;
  color: var(--text-dark);
  border: 1.5px solid rgba(7, 30, 52, 0.2);
}

.btn-outline-dark:hover {
  background: var(--bg-navy);
  color: #ffffff;
  border-color: var(--bg-navy);
}

.btn-sm {
  padding: 9px 16px;
  font-size: 0.83rem;
  border-radius: 10px;
}

.section-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  background: rgba(0, 180, 216, 0.12);
  border: 1px solid rgba(0, 180, 216, 0.28);
  color: var(--aqua-deep);
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 14px;
}

.section-dark .section-eyebrow {
  background: rgba(0, 229, 255, 0.12);
  border-color: rgba(0, 229, 255, 0.3);
  color: var(--aqua-bright);
}

.section-eyebrow svg {
  width: 15px;
  height: 15px;
}

/* ==========================================================================
   5. HERO 3D STAGE & AMBIENT HYDRATION ENVIRONMENT
   ========================================================================== */
.hero-section {
  position: relative;
  min-height: 100vh;
  padding: 155px 0 110px;
  background: radial-gradient(circle at 75% 25%, rgba(0, 180, 216, 0.24) 0%, transparent 48%),
              radial-gradient(circle at 18% 80%, rgba(0, 229, 255, 0.15) 0%, transparent 45%),
              linear-gradient(160deg, #030f1c 0%, #061c33 55%, #041322 100%);
  color: #ffffff;
  overflow: hidden;
  display: flex;
  align-items: center;
}

.hero-grid-overlay {
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(0, 229, 255, 0.045) 1px, transparent 1px),
                    linear-gradient(90deg, rgba(0, 229, 255, 0.045) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(circle at center, black 35%, transparent 85%);
  pointer-events: none;
}

.hero-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(85px);
  pointer-events: none;
}

.hero-orb-1 {
  width: 420px;
  height: 420px;
  background: rgba(0, 229, 255, 0.22);
  top: 8%;
  right: 8%;
  animation: floatOrb 9s ease-in-out infinite alternate;
}

.hero-orb-2 {
  width: 340px;
  height: 340px;
  background: rgba(0, 119, 182, 0.28);
  bottom: 5%;
  left: 5%;
  animation: floatOrb 11s ease-in-out infinite alternate-reverse;
}

@keyframes floatOrb {
  0% { transform: translate(0, 0) scale(1); }
  100% { transform: translate(28px, -24px) scale(1.08); }
}

.hero-layout {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.08fr 0.92fr;
  align-items: center;
  gap: 54px;
}

.hero-badge-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 20px;
}

.hero-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 15px;
  border-radius: var(--radius-pill);
  background: rgba(0, 229, 255, 0.12);
  border: 1px solid rgba(0, 229, 255, 0.3);
  color: var(--aqua-bright);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.05em;
}

.hero-pill-secondary {
  background: rgba(255, 255, 255, 0.07);
  border-color: rgba(255, 255, 255, 0.16);
  color: #d9f2ff;
}

.hero-title {
  font-size: clamp(2.4rem, 4.4vw, 4rem);
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 20px;
  line-height: 1.1;
}

.hero-title .gradient-text {
  background: linear-gradient(92deg, #ffffff 0%, var(--aqua-bright) 52%, #6ee7b7 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.typewriter-wrap {
  display: inline-block;
  color: var(--aqua-bright);
  border-right: 2.5px solid var(--aqua-bright);
  padding-right: 4px;
  animation: blinkCaret 0.8s step-end infinite;
}

@keyframes blinkCaret {
  50% { border-color: transparent; }
}

.hero-description {
  font-size: 1.08rem;
  color: var(--text-light-muted);
  max-width: 600px;
  margin-bottom: 28px;
}

.hero-size-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 30px;
}

.size-chip {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 14px;
  border-radius: 11px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(0, 229, 255, 0.22);
  font-size: 0.82rem;
  font-weight: 600;
  color: #e2f1ff;
}

.size-chip svg {
  width: 15px;
  height: 15px;
  color: var(--aqua-bright);
}

.hero-cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 38px;
}

.hero-metrics-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.hero-metric-card {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: 14px;
  padding: 14px 16px;
}

.hero-metric-value {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.65rem;
  font-weight: 700;
  color: var(--aqua-bright);
  line-height: 1.1;
}

.hero-metric-label {
  font-size: 0.78rem;
  color: var(--text-light-muted);
  margin-top: 4px;
}

/* 3D Hero Bottle Interactive Visual Stage */
.hero-3d-stage-wrap {
  perspective: 1200px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-3d-stage {
  position: relative;
  width: 100%;
  max-width: 490px;
  height: 550px;
  border-radius: 30px;
  background: radial-gradient(circle at 50% 35%, rgba(0, 229, 255, 0.22), rgba(7, 30, 52, 0.78) 70%);
  border: 1px solid rgba(0, 229, 255, 0.3);
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.55), inset 0 0 40px rgba(0, 229, 255, 0.12);
  transform-style: preserve-3d;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.18s ease-out;
}

/* Orbiting 3D Rings */
.orbit-ring {
  position: absolute;
  border-radius: 50%;
  border: 1px dashed rgba(0, 229, 255, 0.35);
  pointer-events: none;
}

.orbit-ring-1 {
  width: 350px;
  height: 350px;
  transform: translateZ(15px) rotateX(68deg) rotateY(-12deg);
  animation: spinOrbit1 14s linear infinite;
}

.orbit-ring-2 {
  width: 410px;
  height: 410px;
  border-color: rgba(110, 231, 183, 0.25);
  transform: translateZ(25px) rotateX(62deg) rotateY(22deg);
  animation: spinOrbit2 19s linear infinite reverse;
}

@keyframes spinOrbit1 {
  0% { transform: translateZ(15px) rotateX(68deg) rotateY(-12deg) rotateZ(0deg); }
  100% { transform: translateZ(15px) rotateX(68deg) rotateY(-12deg) rotateZ(360deg); }
}

@keyframes spinOrbit2 {
  0% { transform: translateZ(25px) rotateX(62deg) rotateY(22deg) rotateZ(0deg); }
  100% { transform: translateZ(25px) rotateX(62deg) rotateY(22deg) rotateZ(360deg); }
}

/* 3D Central Bottle SVG Showcase */
.hero-bottle-3d-object {
  position: relative;
  z-index: 4;
  transform: translateZ(58px);
  filter: drop-shadow(0 28px 38px rgba(0, 0, 0, 0.6));
  animation: bottleFloat 5s ease-in-out infinite;
}

@keyframes bottleFloat {
  0%, 100% { transform: translateZ(58px) translateY(0px); }
  50% { transform: translateZ(58px) translateY(-14px); }
}

/* Floating 3D Depth Chips on Hero Stage */
.stage-depth-chip {
  position: absolute;
  z-index: 6;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 11px 15px;
  border-radius: 16px;
  background: rgba(6, 25, 44, 0.88);
  backdrop-filter: blur(16px);
  border: 1px solid rgba(0, 229, 255, 0.35);
  box-shadow: 0 16px 34px rgba(0, 0, 0, 0.4);
  color: #ffffff;
  transform: translateZ(80px);
}

.stage-chip-top-left {
  top: 28px;
  left: -18px;
}

.stage-chip-top-right {
  top: 75px;
  right: -18px;
}

.stage-chip-bottom-left {
  bottom: 65px;
  left: -16px;
}

.stage-chip-bottom-right {
  bottom: 24px;
  right: -14px;
}

.chip-icon-box {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, rgba(0, 229, 255, 0.25), rgba(0, 119, 182, 0.25));
  border: 1px solid rgba(0, 229, 255, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--aqua-bright);
  flex-shrink: 0;
}

.chip-icon-box svg {
  width: 18px;
  height: 18px;
}

.chip-meta strong {
  display: block;
  font-size: 0.82rem;
  line-height: 1.2;
}

.chip-meta span {
  font-size: 0.71rem;
  color: var(--cyan-soft);
}

/* Interactive Size Switcher inside Hero Stage */
.stage-size-switcher {
  position: absolute;
  bottom: 18px;
  left: 50%;
  transform: translateX(-50%) translateZ(70px);
  display: flex;
  gap: 6px;
  padding: 5px;
  border-radius: 12px;
  background: rgba(4, 19, 34, 0.9);
  border: 1px solid rgba(0, 229, 255, 0.28);
  z-index: 7;
}

.stage-size-btn {
  padding: 6px 11px;
  border-radius: 8px;
  font-size: 0.74rem;
  font-weight: 700;
  color: var(--text-light-muted);
  transition: all 0.2s ease;
}

.stage-size-btn.active,
.stage-size-btn:hover {
  background: var(--aqua-bright);
  color: var(--bg-deep);
}

/* ==========================================================================
   6. OVERLAPPING QUICK BOTTLE & HYDRATION FINDER BAR
   ========================================================================== */
.quick-finder-wrap {
  position: relative;
  z-index: 20;
  margin-top: -54px;
  margin-bottom: 40px;
}

.quick-finder-card {
  background: rgba(7, 30, 52, 0.95);
  backdrop-filter: blur(22px);
  border: 1px solid rgba(0, 229, 255, 0.32);
  border-radius: 22px;
  padding: 24px 28px;
  box-shadow: 0 24px 60px rgba(4, 19, 34, 0.28);
  color: #ffffff;
}

.finder-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 18px;
  flex-wrap: wrap;
  gap: 10px;
}

.finder-title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.02rem;
  font-weight: 700;
}

.finder-title svg {
  width: 20px;
  height: 20px;
  color: var(--aqua-bright);
}

.finder-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr) auto;
  gap: 14px;
  align-items: end;
}

.finder-field label {
  display: block;
  font-size: 0.74rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--cyan-soft);
  margin-bottom: 6px;
  font-weight: 700;
}

.finder-select,
.finder-input {
  width: 100%;
  height: 46px;
  padding: 0 14px;
  border-radius: 11px;
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.16);
  color: #ffffff;
  font-size: 0.88rem;
  font-weight: 600;
}

.finder-select option {
  background: var(--bg-navy);
  color: #ffffff;
}

.finder-select:focus,
.finder-input:focus {
  border-color: var(--aqua-bright);
  box-shadow: 0 0 0 3px rgba(0, 229, 255, 0.18);
}

/* ==========================================================================
   7. INFINITE BRAND TICKER MARQUEE
   ========================================================================== */
.marquee-bar {
  background: var(--bg-deep);
  border-top: 1px solid rgba(0, 229, 255, 0.15);
  border-bottom: 1px solid rgba(0, 229, 255, 0.15);
  padding: 15px 0;
  overflow: hidden;
  position: relative;
}

.marquee-track {
  display: flex;
  width: max-content;
  animation: marqueeScroll 32s linear infinite;
}

.marquee-track:hover {
  animation-play-state: paused;
}

.marquee-item {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 0 28px;
  color: #d9f2ff;
  font-size: 0.86rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.marquee-item svg {
  width: 17px;
  height: 17px;
  color: var(--aqua-bright);
}

@keyframes marqueeScroll {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* ==========================================================================
   8. SECTIONS, HEADERS & 3D TILT CARDS
   ========================================================================== */
.section {
  padding: 96px 0;
  position: relative;
}

.section-dark {
  background: linear-gradient(165deg, #041322 0%, #071e34 60%, #051628 100%);
  color: #ffffff;
}

.section-ice {
  background: linear-gradient(180deg, #e9f5fb 0%, #f4f9fc 100%);
}

.section-header {
  max-width: 720px;
  margin: 0 auto 56px;
  text-align: center;
}

.section-title {
  font-size: clamp(1.9rem, 3.2vw, 2.75rem);
  font-weight: 700;
  margin-bottom: 14px;
}

.section-subtitle {
  font-size: 1.02rem;
  color: var(--text-muted);
}

.section-dark .section-subtitle {
  color: var(--text-light-muted);
}

/* 3D Interactive Card Base + Strict Equal Height Row Baseline */
.tilt-card {
  position: relative;
  height: 100%;
  display: flex;
  flex-direction: column;
  border-radius: var(--radius-lg);
  background: #ffffff;
  border: 1px solid rgba(0, 180, 216, 0.16);
  box-shadow: var(--shadow-md);
  transform-style: preserve-3d;
  transition: transform 0.22s ease-out, box-shadow 0.28s ease-out, border-color 0.28s ease-out;
  overflow: hidden;
}

.section-dark .tilt-card {
  background: rgba(10, 35, 60, 0.72);
  border-color: rgba(0, 229, 255, 0.2);
  color: #ffffff;
}

.tilt-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(420px circle at var(--mx, 50%) var(--my, 50%), rgba(0, 229, 255, 0.13), transparent 60%);
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
  z-index: 1;
}

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

.tilt-card:hover {
  border-color: var(--aqua-primary);
  box-shadow: var(--shadow-lg);
}

/* ==========================================================================
   9. PRODUCT / BOTTLE CATALOG CARDS (STRICT BASELINE ALIGNMENT)
   ========================================================================== */
.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(295px, 1fr));
  gap: 26px;
  align-items: stretch;
}

.product-card {
  height: 100%;
  display: flex;
  flex-direction: column;
  background: #ffffff;
  border-radius: 22px;
  border: 1px solid rgba(7, 30, 52, 0.1);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: all 0.3s var(--ease-out);
  position: relative;
}

.product-card:hover {
  transform: translateY(-6px);
  border-color: var(--aqua-primary);
  box-shadow: var(--shadow-lg);
}

.product-visual {
  position: relative;
  height: 250px;
  background: radial-gradient(circle at 50% 40%, #dff5ff 0%, #eff8fc 75%);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  overflow: hidden;
}

.product-badge-top {
  position: absolute;
  top: 14px;
  left: 14px;
  z-index: 3;
  padding: 5px 11px;
  border-radius: 99px;
  background: var(--bg-navy);
  color: var(--aqua-bright);
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.product-moq-tag {
  position: absolute;
  top: 14px;
  right: 14px;
  z-index: 3;
  padding: 5px 10px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid rgba(0, 180, 216, 0.3);
  color: var(--text-dark);
  font-size: 0.72rem;
  font-weight: 700;
}

.product-svg-wrap {
  transition: transform 0.38s var(--ease-spring);
}

.product-card:hover .product-svg-wrap {
  transform: scale(1.08) translateY(-4px);
}

.product-body {
  padding: 22px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.product-category {
  font-size: 0.74rem;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  color: var(--aqua-deep);
  font-weight: 700;
  margin-bottom: 6px;
}

.product-title {
  font-size: 1.18rem;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 8px;
}

.product-desc {
  font-size: 0.87rem;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.product-specs-row {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin-bottom: 18px;
}

.spec-pill {
  font-size: 0.74rem;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 7px;
  background: var(--bg-ice);
  color: var(--text-slate);
}

.product-footer {
  margin-top: auto;
  padding-top: 16px;
  border-top: 1px solid rgba(7, 30, 52, 0.08);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.product-price-block span {
  display: block;
  font-size: 0.71rem;
  color: var(--text-muted);
}

.product-price-block strong {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.22rem;
  color: var(--text-dark);
}

.product-actions {
  display: flex;
  gap: 8px;
}

/* ==========================================================================
   10. FEATURE GRID & 4-STEP WORKFLOW
   ========================================================================== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(270px, 1fr));
  gap: 24px;
  align-items: stretch;
}

.feature-card {
  padding: 30px 26px;
}

.icon-badge {
  width: 54px;
  height: 54px;
  border-radius: 15px;
  background: linear-gradient(135deg, rgba(0, 180, 216, 0.16), rgba(0, 229, 255, 0.08));
  border: 1px solid rgba(0, 180, 216, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--aqua-deep);
  margin-bottom: 20px;
  transition: all 0.3s var(--ease-out);
}

.section-dark .icon-badge {
  color: var(--aqua-bright);
  border-color: rgba(0, 229, 255, 0.32);
}

.tilt-card:hover .icon-badge {
  transform: scale(1.08) rotate(-4deg);
  background: var(--aqua-primary);
  color: #ffffff;
}

.icon-badge svg {
  width: 26px;
  height: 26px;
}

.feature-card h3 {
  font-size: 1.22rem;
  margin-bottom: 10px;
}

.feature-card p {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 18px;
}

.section-dark .feature-card p {
  color: var(--text-light-muted);
}

.feature-card-footer {
  margin-top: auto;
  padding-top: 14px;
  border-top: 1px solid rgba(0, 180, 216, 0.14);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--aqua-deep);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.section-dark .feature-card-footer {
  color: var(--aqua-bright);
}

/* 4-Step Workflow */
.workflow-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
  align-items: stretch;
}

.workflow-step-card {
  padding: 28px 24px;
  position: relative;
}

.step-number {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 2.4rem;
  font-weight: 700;
  color: rgba(0, 180, 216, 0.22);
  line-height: 1;
  margin-bottom: 14px;
}

.section-dark .step-number {
  color: rgba(0, 229, 255, 0.28);
}

/* ==========================================================================
   11. PAGE HERO BANNER (FOR INNER PAGES)
   ========================================================================== */
.page-hero {
  padding: 155px 0 78px;
  background: radial-gradient(circle at 80% 20%, rgba(0, 229, 255, 0.2), transparent 45%),
              linear-gradient(160deg, #03101e 0%, #071e34 65%, #041322 100%);
  color: #ffffff;
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid rgba(0, 229, 255, 0.18);
}

.breadcrumb-list {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  color: var(--cyan-soft);
  margin-bottom: 16px;
}

.breadcrumb-list a:hover {
  color: #ffffff;
}

.page-hero h1 {
  font-size: clamp(2.1rem, 3.8vw, 3.3rem);
  margin-bottom: 14px;
}

.page-hero p {
  font-size: 1.05rem;
  color: var(--text-light-muted);
  max-width: 680px;
}

/* ==========================================================================
   12. CUSTOM BOTTLE & LABEL BRANDING STUDIO (custom.html)
   ========================================================================== */
.studio-layout {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: 36px;
  align-items: start;
}

.studio-preview-stage {
  position: sticky;
  top: 96px;
  background: radial-gradient(circle at 50% 35%, rgba(0, 229, 255, 0.22), #061b30 72%);
  border: 1px solid rgba(0, 229, 255, 0.3);
  border-radius: 28px;
  padding: 36px 28px;
  color: #ffffff;
  text-align: center;
  box-shadow: var(--shadow-lg);
}

.studio-live-svg-wrap {
  min-height: 360px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 16px 0;
}

.studio-form-panel {
  background: #ffffff;
  border-radius: 26px;
  border: 1px solid rgba(7, 30, 52, 0.1);
  padding: 34px;
  box-shadow: var(--shadow-md);
}

.studio-option-group {
  margin-bottom: 26px;
}

.studio-option-group label.group-label {
  display: block;
  font-weight: 700;
  font-size: 0.92rem;
  color: var(--text-dark);
  margin-bottom: 10px;
}

.option-pills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 10px;
}

.option-pill-btn {
  padding: 12px 14px;
  border-radius: 12px;
  border: 1.5px solid rgba(7, 30, 52, 0.14);
  background: var(--bg-light);
  font-weight: 700;
  font-size: 0.85rem;
  color: var(--text-dark);
  text-align: center;
  transition: all 0.2s ease;
}

.option-pill-btn.active,
.option-pill-btn:hover {
  border-color: var(--aqua-primary);
  background: rgba(0, 180, 216, 0.12);
  color: var(--aqua-deep);
}

.color-swatch-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.color-swatch-btn {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: 3px solid #ffffff;
  box-shadow: 0 0 0 1.5px rgba(7, 30, 52, 0.2);
  transition: transform 0.2s ease;
}

.color-swatch-btn.active {
  transform: scale(1.16);
  box-shadow: 0 0 0 2.5px var(--aqua-primary);
}

.form-control {
  width: 100%;
  padding: 13px 16px;
  border-radius: 12px;
  border: 1.5px solid rgba(7, 30, 52, 0.15);
  background: #ffffff;
  color: var(--text-dark);
  font-size: 0.92rem;
  transition: border-color 0.2s ease;
}

.form-control:focus {
  border-color: var(--aqua-primary);
  box-shadow: 0 0 0 3px rgba(0, 180, 216, 0.15);
}

/* ==========================================================================
   13. COMPARISON TABLE & ACCORDION FAQ
   ========================================================================== */
.comparison-table-wrap {
  overflow-x: auto;
  border-radius: 22px;
  border: 1px solid rgba(0, 180, 216, 0.2);
  box-shadow: var(--shadow-md);
  background: #ffffff;
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 720px;
}

.comparison-table th,
.comparison-table td {
  padding: 18px 22px;
  text-align: left;
  border-bottom: 1px solid rgba(7, 30, 52, 0.08);
}

.comparison-table thead th {
  background: var(--bg-navy);
  color: #ffffff;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.95rem;
}

.comparison-table thead th.highlight-col {
  background: var(--aqua-deep);
  color: #ffffff;
}

.comparison-table tbody tr:hover {
  background: var(--bg-ice);
}

/* FAQ Accordion */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.faq-item {
  background: #ffffff;
  border: 1px solid rgba(7, 30, 52, 0.1);
  border-radius: 16px;
  overflow: hidden;
  transition: border-color 0.25s ease;
}

.faq-item.open {
  border-color: var(--aqua-primary);
  box-shadow: var(--shadow-sm);
}

.faq-trigger {
  width: 100%;
  padding: 20px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  text-align: left;
  font-weight: 700;
  font-size: 1rem;
  color: var(--text-dark);
}

.faq-trigger svg {
  width: 20px;
  height: 20px;
  color: var(--aqua-deep);
  transition: transform 0.28s ease;
  flex-shrink: 0;
}

.faq-item.open .faq-trigger svg {
  transform: rotate(180deg);
}

.faq-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.32s var(--ease-out);
}

.faq-content-inner {
  padding: 0 24px 20px;
  color: var(--text-muted);
  font-size: 0.92rem;
}

/* ==========================================================================
   14. FLOATING ACTION STACK & LEFT QUICK-ACCESS RAIL
   ========================================================================== */
.left-quick-rail {
  position: fixed;
  left: 18px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 890;
  display: flex;
  flex-direction: column;
  gap: 10px;
  background: rgba(4, 19, 34, 0.84);
  backdrop-filter: blur(14px);
  padding: 10px 8px;
  border-radius: 16px;
  border: 1px solid rgba(0, 229, 255, 0.22);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.28);
}

.rail-btn {
  position: relative;
  width: 38px;
  height: 38px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #d9f2ff;
  transition: all 0.22s ease;
}

.rail-btn:hover {
  background: var(--aqua-bright);
  color: var(--bg-deep);
}

.rail-btn svg {
  width: 18px;
  height: 18px;
}

.rail-tooltip {
  position: absolute;
  left: calc(100% + 12px);
  top: 50%;
  transform: translateY(-50%) translateX(-6px);
  background: var(--bg-navy);
  color: #ffffff;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 5px 11px;
  border-radius: 8px;
  border: 1px solid rgba(0, 229, 255, 0.3);
  white-space: nowrap;
  opacity: 0;
  visibility: hidden;
  transition: all 0.2s ease;
  pointer-events: none;
}

.rail-btn:hover .rail-tooltip {
  opacity: 1;
  visibility: visible;
  transform: translateY(-50%) translateX(0);
}

/* Right Multi-Button Floating Action Stack */
.floating-action-stack {
  position: fixed;
  right: 22px;
  bottom: 24px;
  z-index: 950;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 12px;
}

.fab-btn {
  position: relative;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  box-shadow: 0 10px 26px rgba(0, 0, 0, 0.3);
  transition: transform 0.25s var(--ease-spring);
}

.fab-btn:hover {
  transform: scale(1.1);
}

.fab-btn svg {
  width: 22px;
  height: 22px;
}

.fab-top {
  background: var(--bg-navy);
  border: 1px solid rgba(0, 229, 255, 0.35);
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: all 0.28s ease;
}

.fab-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.fab-email {
  background: linear-gradient(135deg, #0077b6, #00b4d8);
}

.fab-call {
  background: linear-gradient(135deg, #0284c7, #38bdf8);
  animation: callShake 4.5s infinite;
}

@keyframes callShake {
  0%, 88%, 100% { transform: rotate(0deg); }
  90%, 94% { transform: rotate(-10deg); }
  92%, 96% { transform: rotate(10deg); }
}

.fab-whatsapp {
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, #10b981, #059669);
}

.fab-whatsapp::before,
.fab-whatsapp::after {
  content: '';
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  border: 2px solid rgba(16, 185, 129, 0.6);
  animation: waPulseRing 2.2s ease-out infinite;
}

.fab-whatsapp::after {
  animation-delay: 1.1s;
}

@keyframes waPulseRing {
  0% { transform: scale(0.95); opacity: 0.9; }
  100% { transform: scale(1.45); opacity: 0; }
}

.fab-tooltip {
  position: absolute;
  right: calc(100% + 12px);
  top: 50%;
  transform: translateY(-50%) translateX(8px);
  background: var(--bg-deep);
  color: #ffffff;
  padding: 6px 12px;
  border-radius: 8px;
  font-size: 0.76rem;
  font-weight: 700;
  white-space: nowrap;
  border: 1px solid rgba(0, 229, 255, 0.28);
  opacity: 0;
  visibility: hidden;
  transition: all 0.22s ease;
  pointer-events: none;
}

.fab-btn:hover .fab-tooltip {
  opacity: 1;
  visibility: visible;
  transform: translateY(-50%) translateX(0);
}

/* ==========================================================================
   15. FOOTER
   ========================================================================== */
.site-footer {
  background: #030e1a;
  color: var(--text-light-muted);
  padding: 82px 0 34px;
  border-top: 1px solid rgba(0, 229, 255, 0.16);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 40px;
  padding-bottom: 54px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-col h4 {
  color: #ffffff;
  font-size: 1.02rem;
  margin-bottom: 18px;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links a {
  font-size: 0.88rem;
  color: var(--text-light-muted);
  display: inline-flex;
  align-items: center;
  gap: 7px;
}

.footer-links a:hover {
  color: var(--aqua-bright);
  transform: translateX(4px);
}

.footer-bottom {
  padding-top: 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 14px;
  font-size: 0.82rem;
}

/* ==========================================================================
   16. TOAST NOTIFICATION & QUICK VIEW MODAL
   ========================================================================== */
.toast-container {
  position: fixed;
  bottom: 26px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.pop-toast {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 13px 20px;
  border-radius: 14px;
  background: rgba(4, 19, 34, 0.96);
  border: 1px solid var(--aqua-bright);
  color: #ffffff;
  font-size: 0.88rem;
  font-weight: 600;
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.45);
  animation: toastSlideUp 0.3s var(--ease-out);
}

.pop-toast svg {
  width: 20px;
  height: 20px;
  color: var(--aqua-bright);
  flex-shrink: 0;
}

@keyframes toastSlideUp {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Modal */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(3, 12, 22, 0.78);
  backdrop-filter: blur(10px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  visibility: hidden;
  transition: all 0.28s ease;
}

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

.modal-dialog {
  width: 100%;
  max-width: 760px;
  background: #ffffff;
  border-radius: 26px;
  overflow: hidden;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.5);
  position: relative;
  transform: scale(0.95);
  transition: transform 0.28s var(--ease-out);
}

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

.modal-close-btn {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--bg-ice);
  color: var(--text-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 5;
}

/* 3D Scroll Reveal Animation Classes */
.reveal-3d {
  opacity: 0;
  transform: perspective(900px) translateY(32px) rotateX(6deg);
  transition: opacity 0.65s var(--ease-out), transform 0.65s var(--ease-out);
}

.reveal-3d.revealed {
  opacity: 1;
  transform: perspective(900px) translateY(0) rotateX(0deg);
}

/* ==========================================================================
   17. RESPONSIVE BREAKPOINTS
   ========================================================================== */
@media (max-width: 1120px) {
  .hero-layout,
  .studio-layout {
    grid-template-columns: 1fr;
  }
  .finder-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .workflow-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .left-quick-rail {
    display: none;
  }
}

@media (max-width: 860px) {
  .header-topbar {
    display: none;
  }
  .mobile-menu-toggle {
    display: inline-flex;
  }
  .nav-menu {
    position: fixed;
    top: 78px;
    left: 0;
    width: 100%;
    background: rgba(4, 19, 34, 0.98);
    flex-direction: column;
    align-items: stretch;
    padding: 20px;
    gap: 8px;
    border-bottom: 1px solid rgba(0, 229, 255, 0.2);
    transform: translateY(-120%);
    opacity: 0;
    pointer-events: none;
    transition: all 0.3s var(--ease-out);
  }
  .nav-menu.mobile-open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
  .nav-dropdown {
    position: static;
    transform: none;
    width: 100%;
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    margin-top: 6px;
    display: none;
  }
  .nav-item:hover .nav-dropdown {
    display: block;
    transform: none;
  }
}

@media (max-width: 600px) {
  .finder-grid,
  .workflow-grid,
  .footer-grid,
  .hero-metrics-grid {
    grid-template-columns: 1fr;
  }
  .stage-depth-chip {
    display: none;
  }
  .hero-3d-stage {
    height: 430px;
  }
}