/* ==========================================================================
   SIPKO PACKAGED DRINKING WATER - CORE STYLESHEET
   A pure, crisp, modern aesthetic tailored for packaged drinking water.
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. DESIGN TOKENS (CSS VARIABLES)
   -------------------------------------------------------------------------- */
:root {
  /* Brand Palette */
  --primary-deep: #08203e;         /* Abyssal deep navy */
  --primary-navy: #0f3460;         /* Slate navy */
  --primary-blue: #0077b6;         /* Pure water blue */
  --primary-bright: #0096c7;       /* Refreshing cyan blue */
  --primary-aqua: #00b4d8;         /* Vibrant aqua */
  --primary-light: #caf0f8;        /* Icy light tint */
  --accent-cyan: #38bdf8;          /* Bright glow */
  --accent-emerald: #10b981;       /* Quality green */

  /* Neutral Spectrum */
  --surface-white: #ffffff;
  --surface-soft: #f8fafc;
  --surface-ice: #f0f7fc;
  --surface-card: #ffffff;
  --text-main: #0f172a;
  --text-muted: #475569;
  --text-light: #64748b;
  --text-white: #ffffff;
  --border-light: #e2e8f0;
  --border-ice: #d8e8f4;

  /* Typography */
  --font-base: 'Plus Jakarta Sans', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

  /* Elevations */
  --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.06), 0 1px 2px rgba(15, 23, 42, 0.04);
  --shadow-md: 0 4px 14px -2px rgba(0, 119, 182, 0.1), 0 2px 6px -1px rgba(15, 23, 42, 0.06);
  --shadow-lg: 0 12px 30px -4px rgba(0, 119, 182, 0.15), 0 4px 10px -2px rgba(15, 23, 42, 0.05);
  --shadow-glow: 0 0 25px rgba(0, 180, 216, 0.35);

  /* Layout & Spacing */
  --max-width: 1200px;
  --header-height: 80px;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-full: 9999px;
  --transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 16px);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-base);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-main);
  background-color: var(--surface-soft);
  overflow-x: hidden;
  position: relative;
}

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

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

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

ul, ol {
  list-style: none;
}

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

/* --------------------------------------------------------------------------
   3. TYPOGRAPHY & COMMON UTILITIES
   -------------------------------------------------------------------------- */
.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 0.8rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--primary-deep);
  background: linear-gradient(135deg, #ffffff 0%, rgba(224, 242, 254, 0.7) 100%);
  padding: 7px 18px 7px 14px;
  border-radius: 4px 16px 4px 16px;
  border: 1px solid rgba(0, 180, 216, 0.32);
  border-left: 3.5px solid var(--primary-bright);
  box-shadow: 0 3px 12px rgba(0, 119, 182, 0.08);
  margin-bottom: 16px;
  position: relative;
  transition: var(--transition);
}

.section-tag:hover {
  border-color: var(--primary-bright);
  box-shadow: 0 4px 16px rgba(0, 180, 216, 0.18);
  transform: translateY(-1px);
}

.section-tag svg {
  width: 14px;
  height: 14px;
  fill: var(--primary-bright);
  flex-shrink: 0;
}

.section-title {
  font-size: clamp(2rem, 3.5vw, 2.75rem);
  font-weight: 800;
  color: var(--primary-deep);
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--text-muted);
  max-width: 680px;
  margin-bottom: 40px;
}

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

.text-center .section-subtitle {
  margin-left: auto;
  margin-right: auto;
}

/* Section Wrapper */
.section-padding {
  padding-top: 90px;
  padding-bottom: 90px;
  position: relative;
}

/* --------------------------------------------------------------------------
   4. BUTTONS & INTERACTIVE ELEMENTS
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-weight: 600;
  font-size: 0.95rem;
  padding: 13px 26px;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary-bright) 0%, var(--primary-blue) 100%);
  color: var(--text-white);
  box-shadow: 0 4px 14px rgba(0, 119, 182, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 22px rgba(0, 119, 182, 0.4);
  filter: brightness(1.05);
}

.btn-secondary {
  background: var(--surface-white);
  color: var(--primary-deep);
  border: 1px solid var(--border-ice);
  box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
  background: var(--surface-ice);
  border-color: var(--primary-aqua);
  color: var(--primary-blue);
  transform: translateY(-2px);
}

.btn-whatsapp {
  background: #25d366;
  color: #ffffff;
  font-weight: 700;
  box-shadow: 0 4px 14px rgba(37, 211, 102, 0.3);
}

.btn-whatsapp:hover {
  background: #20bd5a;
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(37, 211, 102, 0.45);
}

.btn-sm {
  padding: 8px 18px;
  font-size: 0.85rem;
}

/* --------------------------------------------------------------------------
   5. HEADER & NAVIGATION
   -------------------------------------------------------------------------- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(226, 232, 240, 0.7);
  z-index: 1000;
  transition: var(--transition);
}

.header.scrolled {
  height: 70px;
  background: rgba(255, 255, 255, 0.98);
  box-shadow: 0 4px 20px rgba(15, 23, 42, 0.08);
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.header-logo {
  display: flex;
  align-items: center;
}

.header-logo img {
  height: 44px;
  width: auto;
  transition: var(--transition);
}

.header.scrolled .header-logo img {
  height: 38px;
}

/* Nav Menu */
.nav-menu {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-link {
  font-weight: 600;
  font-size: 0.92rem;
  color: var(--text-muted);
  position: relative;
  padding: 6px 0;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary-blue);
  border-radius: 2px;
  transition: var(--transition);
}

.nav-link:hover,
.nav-link.active {
  color: var(--primary-blue);
}

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

.header-actions {
  display: flex;
  align-items: center;
  gap: 14px;
}

.header-cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: 0.88rem;
  padding: 10px 20px;
  background: var(--primary-deep);
  color: #fff;
  border-radius: var(--radius-full);
  transition: var(--transition);
}

.header-cta-btn:hover {
  background: var(--primary-blue);
  transform: translateY(-1px);
}

/* Mobile Toggle Hamburger */
.mobile-nav-toggle {
  display: none;
  background: none;
  border: none;
  width: 44px;
  height: 44px;
  padding: 8px;
  cursor: pointer;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  z-index: 1100;
}

.mobile-nav-toggle span {
  display: block;
  width: 24px;
  height: 2.5px;
  background-color: var(--primary-deep);
  border-radius: 3px;
  transition: var(--transition);
}

.mobile-nav-toggle.open span:nth-child(1) {
  transform: translateY(7.5px) rotate(45deg);
}

.mobile-nav-toggle.open span:nth-child(2) {
  opacity: 0;
}

.mobile-nav-toggle.open span:nth-child(3) {
  transform: translateY(-7.5px) rotate(-45deg);
}

/* Mobile Navigation Drawer */
.mobile-drawer {
  position: fixed;
  top: 0;
  right: -100%;
  width: 300px;
  height: 100vh;
  background: var(--surface-white);
  box-shadow: -10px 0 30px rgba(0, 0, 0, 0.12);
  padding: 100px 30px 40px;
  display: flex;
  flex-direction: column;
  gap: 22px;
  transition: right 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  z-index: 1050;
}

.mobile-drawer.open {
  right: 0;
}

.mobile-drawer .nav-link {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--primary-deep);
  padding: 8px 0;
  border-bottom: 1px solid var(--border-light);
  display: block;
}

.mobile-drawer .nav-link:hover,
.mobile-drawer .nav-link.active {
  color: var(--primary-blue);
  padding-left: 6px;
}

.drawer-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.45);
  backdrop-filter: blur(4px);
  z-index: 1040;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
}

.drawer-overlay.active {
  opacity: 1;
  visibility: visible;
}

/* --------------------------------------------------------------------------
   6. HERO BANNER SECTION
   -------------------------------------------------------------------------- */
.hero-section {
  padding-top: calc(var(--header-height) + 40px);
  padding-bottom: 70px;
  background: radial-gradient(circle at 80% 20%, rgba(202, 240, 248, 0.6) 0%, rgba(240, 247, 252, 0.8) 50%, var(--surface-soft) 100%);
  position: relative;
  overflow: hidden;
}

.hero-glow-blob {
  position: absolute;
  top: -100px;
  right: -100px;
  width: 550px;
  height: 550px;
  background: radial-gradient(circle, rgba(0, 180, 216, 0.25) 0%, rgba(0, 180, 216, 0) 70%);
  border-radius: 50%;
  pointer-events: none;
  filter: blur(40px);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  align-items: center;
  gap: 50px;
}

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

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: linear-gradient(135deg, #ffffff 0%, rgba(224, 242, 254, 0.7) 100%);
  border: 1px solid rgba(0, 180, 216, 0.35);
  border-left: 4px solid var(--primary-bright);
  padding: 7px 18px 7px 14px;
  border-radius: 4px 16px 4px 16px;
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--primary-deep);
  box-shadow: 0 4px 14px rgba(0, 119, 182, 0.08);
  margin-bottom: 22px;
  transition: var(--transition);
}

.hero-tag svg {
  color: var(--primary-bright);
  flex-shrink: 0;
}

.hero-tag:hover {
  border-color: var(--primary-bright);
  transform: translateY(-1px);
}

.hero-title {
  font-size: clamp(2.4rem, 4.5vw, 3.6rem);
  font-weight: 900;
  color: var(--primary-deep);
  line-height: 1.12;
  letter-spacing: -0.03em;
  margin-bottom: 20px;
}

.hero-title span {
  background: linear-gradient(135deg, var(--primary-bright) 0%, var(--primary-blue) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-description {
  font-size: 1.15rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 32px;
  max-width: 540px;
}

.hero-cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 40px;
}

/* Trust Badges Strip in Hero */
.hero-trust-bar {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  padding-top: 24px;
  border-top: 1px solid var(--border-ice);
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 12px;
}

.trust-icon {
  width: 38px;
  height: 38px;
  background: rgba(0, 180, 216, 0.15);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-blue);
  flex-shrink: 0;
}

.trust-icon svg {
  width: 20px;
  height: 20px;
}

.trust-text h4 {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--primary-deep);
  line-height: 1.2;
}

.trust-text p {
  font-size: 0.75rem;
  color: var(--text-light);
}

/* Hero Visual Box */
.hero-visual-wrapper {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-image-frame {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 20px 40px -10px rgba(0, 119, 182, 0.22);
  border: 4px solid #ffffff;
  background: #ffffff;
  transition: transform 0.4s ease;
}

.hero-image-frame:hover {
  transform: scale(1.01);
}

.hero-image-frame img {
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* Floating Metric Badges over Hero Image */
.floating-metric-card {
  position: absolute;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.8);
  box-shadow: var(--shadow-md);
  border-radius: var(--radius-md);
  padding: 12px 18px;
  display: flex;
  align-items: center;
  gap: 12px;
  z-index: 5;
  animation: floatAnim 4s ease-in-out infinite alternate;
}

.card-top-left {
  top: 24px;
  left: -20px;
}

.card-bottom-right {
  bottom: 24px;
  right: -20px;
  animation-delay: 2s;
}

@keyframes floatAnim {
  0% { transform: translateY(0); }
  100% { transform: translateY(-8px); }
}

.metric-pill {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary-bright), var(--primary-blue));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
}

.metric-pill svg {
  width: 18px;
  height: 18px;
}

.metric-details strong {
  display: block;
  font-size: 0.95rem;
  font-weight: 800;
  color: var(--primary-deep);
}

.metric-details span {
  font-size: 0.75rem;
  color: var(--text-light);
}

/* --------------------------------------------------------------------------
   7. LIVE PURITY SPECS BAR
   -------------------------------------------------------------------------- */
.purity-specs-bar {
  background: var(--primary-deep);
  color: var(--text-white);
  padding: 30px 0;
  border-radius: var(--radius-md);
  margin-top: -30px;
  position: relative;
  z-index: 10;
  box-shadow: var(--shadow-lg);
}

.purity-specs-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.spec-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 0 16px;
  border-right: 1px solid rgba(255, 255, 255, 0.12);
}

.spec-item:last-child {
  border-right: none;
}

.spec-icon {
  width: 44px;
  height: 44px;
  background: rgba(0, 180, 216, 0.2);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-cyan);
  flex-shrink: 0;
}

.spec-icon svg {
  width: 22px;
  height: 22px;
}

.spec-info .spec-number {
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--text-white);
  line-height: 1.1;
  display: flex;
  align-items: baseline;
  gap: 4px;
}

.spec-info .spec-label {
  font-size: 0.8rem;
  color: var(--primary-light);
  margin-top: 4px;
}

/* --------------------------------------------------------------------------
   8. ABOUT SIPKO SECTION
   -------------------------------------------------------------------------- */
.about-section {
  background: var(--surface-white);
}

.about-grid {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  align-items: center;
  gap: 60px;
}

.about-image-column {
  position: relative;
}

.about-main-image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  border: 4px solid var(--surface-white);
}

.about-overlay-badge {
  position: absolute;
  bottom: -20px;
  right: -10px;
  background: var(--surface-white);
  padding: 18px 24px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border-ice);
  display: flex;
  align-items: center;
  gap: 14px;
  max-width: 260px;
}

.badge-seal {
  width: 44px;
  height: 44px;
  background: rgba(16, 185, 129, 0.15);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-emerald);
  flex-shrink: 0;
}

.badge-seal svg {
  width: 24px;
  height: 24px;
}

.badge-text strong {
  display: block;
  font-size: 0.95rem;
  font-weight: 800;
  color: var(--primary-deep);
}

.badge-text span {
  font-size: 0.78rem;
  color: var(--text-muted);
}

.about-content-column .section-title {
  margin-bottom: 20px;
}

.about-lead-text {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--primary-blue);
  margin-bottom: 16px;
  line-height: 1.6;
}

.about-body-text {
  color: var(--text-muted);
  font-size: 0.98rem;
  line-height: 1.7;
  margin-bottom: 28px;
}

.about-features-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  margin-bottom: 34px;
}

.about-feature-card {
  background: var(--surface-ice);
  padding: 16px;
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--primary-blue);
}

.about-feature-card h4 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--primary-deep);
  margin-bottom: 4px;
}

.about-feature-card p {
  font-size: 0.82rem;
  color: var(--text-light);
  line-height: 1.5;
}

/* --------------------------------------------------------------------------
   9. OUR PURIFICATION PROCESS SECTION
   -------------------------------------------------------------------------- */
.process-section {
  background: linear-gradient(180deg, var(--surface-ice) 0%, var(--surface-soft) 100%);
}

.process-steps-container {
  display: flex;
  flex-direction: column;
  gap: 40px;
  margin-top: 50px;
}

.process-card {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  align-items: center;
  background: var(--surface-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-ice);
  transition: var(--transition);
}

.process-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.process-card.reverse {
  grid-template-columns: 0.95fr 1.05fr;
}

.process-card.reverse .process-card-content {
  order: 2;
}

.process-card.reverse .process-card-media {
  order: 1;
}

.process-card-content {
  padding: 44px;
}

.step-indicator {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.78rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--primary-deep);
  background: linear-gradient(135deg, #ffffff 0%, var(--surface-ice) 100%);
  padding: 5px 14px;
  border-radius: 4px 12px 4px 12px;
  border: 1px solid var(--border-ice);
  border-left: 3px solid var(--primary-bright);
  margin-bottom: 14px;
}

.process-card-content h3 {
  font-size: 1.65rem;
  font-weight: 800;
  color: var(--primary-deep);
  margin-bottom: 14px;
  letter-spacing: -0.01em;
}

.process-card-content p {
  color: var(--text-muted);
  font-size: 0.96rem;
  line-height: 1.7;
  margin-bottom: 22px;
}

.process-specs-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.spec-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--primary-deep);
  background: var(--surface-ice);
  padding: 6px 12px;
  border-radius: 6px;
  border: 1px solid var(--border-ice);
}

.spec-badge svg {
  width: 14px;
  height: 14px;
  color: var(--primary-blue);
}

.process-card-media {
  position: relative;
  height: 100%;
  min-height: 320px;
  overflow: hidden;
}

.process-card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.process-card:hover .process-card-media img {
  transform: scale(1.04);
}

/* Secondary Stages Bar (Micro-filtration, RO, Ozonation) */
.secondary-stages-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 40px;
}

.stage-subcard {
  background: var(--surface-white);
  padding: 28px 24px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-ice);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.stage-subcard:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--primary-aqua);
}

.subcard-icon {
  width: 44px;
  height: 44px;
  background: rgba(0, 180, 216, 0.12);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-blue);
  margin-bottom: 16px;
}

.subcard-icon svg {
  width: 22px;
  height: 22px;
}

.stage-subcard h4 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--primary-deep);
  margin-bottom: 8px;
}

.stage-subcard p {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* --------------------------------------------------------------------------
   10. PRODUCTS DISPLAY SECTION (NO CART / CHECKOUT)
   -------------------------------------------------------------------------- */
.products-section {
  background: var(--surface-white);
}

.products-lineup-banner {
  background: linear-gradient(135deg, var(--surface-ice) 0%, #e0f2fe 100%);
  border-radius: var(--radius-lg);
  padding: 40px 30px;
  margin-bottom: 50px;
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  align-items: center;
  gap: 40px;
  border: 1px solid var(--border-ice);
}

.lineup-content h3 {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--primary-deep);
  margin-bottom: 12px;
}

.lineup-content p {
  font-size: 0.98rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 24px;
}

.lineup-features {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.lineup-feature-pill {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--primary-deep);
  background: #ffffff;
  padding: 8px 16px;
  border-radius: 8px;
  border: 1px solid var(--border-ice);
  box-shadow: var(--shadow-sm);
}

.lineup-image-frame {
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  border: 3px solid #ffffff;
}

/* Product Cards Grid */
.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 24px;
}

.product-card {
  background: var(--surface-white);
  border: 1px solid var(--border-ice);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  transition: var(--transition);
  position: relative;
}

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

.product-badge-flag {
  position: absolute;
  top: 14px;
  left: 14px;
  background: var(--primary-deep);
  color: #ffffff;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 4px 10px;
  border-radius: 4px 10px 4px 10px;
  z-index: 2;
}

.product-image-container {
  height: 220px;
  background: radial-gradient(circle at center, #f0f7fc 0%, #ffffff 80%);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  overflow: hidden;
  position: relative;
}

.product-image-container img {
  max-height: 190px;
  width: auto;
  object-fit: contain;
  transition: transform 0.4s ease;
  filter: drop-shadow(0 8px 12px rgba(0, 119, 182, 0.15));
}

.product-card:hover .product-image-container img {
  transform: scale(1.08);
}

.product-card-body {
  padding: 22px 18px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.product-category {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--primary-blue);
  margin-bottom: 6px;
}

.product-name {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--primary-deep);
  margin-bottom: 8px;
}

.product-desc {
  font-size: 0.84rem;
  color: var(--text-muted);
  line-height: 1.5;
  margin-bottom: 16px;
  flex-grow: 1;
}

.product-spec-table {
  background: var(--surface-soft);
  border-radius: var(--radius-sm);
  padding: 10px;
  margin-bottom: 18px;
  font-size: 0.78rem;
}

.product-spec-row {
  display: flex;
  justify-content: space-between;
  padding: 3px 0;
  border-bottom: 1px dashed var(--border-light);
}

.product-spec-row:last-child {
  border-bottom: none;
}

.spec-key {
  color: var(--text-light);
}

.spec-val {
  font-weight: 700;
  color: var(--text-main);
}

.product-action-btn {
  width: 100%;
  font-size: 0.86rem;
  padding: 10px;
}

/* --------------------------------------------------------------------------
   11. INTERACTIVE HYDRATION / PACK PLANNER
   -------------------------------------------------------------------------- */
.planner-card {
  margin-top: 60px;
  background: linear-gradient(135deg, var(--primary-deep) 0%, var(--primary-navy) 100%);
  color: var(--text-white);
  border-radius: var(--radius-lg);
  padding: 44px;
  box-shadow: var(--shadow-lg);
}

.planner-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 36px;
}

.planner-header h3 {
  font-size: 1.8rem;
  font-weight: 800;
  margin-bottom: 10px;
}

.planner-header p {
  color: var(--primary-light);
  font-size: 0.95rem;
}

.planner-interface {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 36px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-md);
  padding: 30px;
}

.planner-inputs {
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.planner-control label {
  display: block;
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--primary-light);
  margin-bottom: 8px;
}

.planner-select,
.planner-input {
  width: 100%;
  padding: 12px 16px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-sm);
  color: #ffffff;
  font-size: 0.95rem;
  transition: var(--transition);
}

.planner-select option {
  background: var(--primary-deep);
  color: #fff;
}

.planner-select:focus,
.planner-input:focus {
  border-color: var(--accent-cyan);
  background: rgba(255, 255, 255, 0.16);
}

.planner-result {
  background: rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-sm);
  padding: 24px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.result-title {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent-cyan);
  margin-bottom: 12px;
}

.result-recommendation {
  font-size: 1.45rem;
  font-weight: 800;
  color: #ffffff;
  line-height: 1.3;
  margin-bottom: 12px;
}

.result-breakdown {
  font-size: 0.86rem;
  color: #e2e8f0;
  line-height: 1.6;
  margin-bottom: 22px;
}

/* --------------------------------------------------------------------------
   12. PHOTO GALLERY SECTION (WITH FILTER & LIGHTBOX)
   -------------------------------------------------------------------------- */
.gallery-section {
  background: var(--surface-soft);
}

.gallery-filters {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 40px;
}

.filter-btn {
  background: var(--surface-white);
  color: var(--text-muted);
  border: 1px solid var(--border-ice);
  padding: 8px 18px;
  border-radius: 6px;
  font-size: 0.88rem;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition);
}

.filter-btn:hover,
.filter-btn.active {
  background: var(--primary-deep);
  color: #ffffff;
  border-color: var(--primary-deep);
  box-shadow: 0 4px 12px rgba(15, 23, 42, 0.15);
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 22px;
}

.gallery-item {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  height: 260px;
  cursor: pointer;
  box-shadow: var(--shadow-sm);
  background: #e2e8f0;
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

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

.gallery-item-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(8, 32, 62, 0.88) 100%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 20px;
  color: #ffffff;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.gallery-item:hover .gallery-item-overlay {
  opacity: 1;
}

.gallery-caption-title {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.gallery-caption-sub {
  font-size: 0.78rem;
  color: var(--primary-light);
}

.gallery-zoom-icon {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 36px;
  height: 36px;
  background: rgba(255, 255, 255, 0.25);
  backdrop-filter: blur(8px);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
}

.gallery-zoom-icon svg {
  width: 18px;
  height: 18px;
}

/* Lightbox Modal */
.lightbox-modal {
  position: fixed;
  inset: 0;
  background: rgba(8, 20, 36, 0.94);
  backdrop-filter: blur(10px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
  padding: 30px;
}

.lightbox-modal.active {
  opacity: 1;
  pointer-events: auto;
}

.lightbox-container {
  max-width: 900px;
  width: 100%;
  max-height: 88vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
}

.lightbox-img {
  max-width: 100%;
  max-height: 75vh;
  object-fit: contain;
  border-radius: var(--radius-sm);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
}

.lightbox-caption {
  color: #ffffff;
  font-size: 1rem;
  font-weight: 600;
  margin-top: 16px;
  text-align: center;
}

.lightbox-close {
  position: absolute;
  top: -46px;
  right: 0;
  background: none;
  border: none;
  color: #ffffff;
  font-size: 2rem;
  cursor: pointer;
  padding: 8px;
}

/* --------------------------------------------------------------------------
   13. CUSTOMER CONTACT & ENQUIRY SECTION
   -------------------------------------------------------------------------- */
.contact-section {
  background: var(--surface-white);
}

.contact-layout {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 50px;
}

/* Contact Info Column */
.contact-info-col {
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.contact-card-box {
  background: var(--surface-soft);
  border: 1px solid var(--border-ice);
  border-radius: var(--radius-md);
  padding: 24px;
  display: flex;
  align-items: flex-start;
  gap: 18px;
  transition: var(--transition);
}

.contact-card-box:hover {
  transform: translateY(-2px);
  border-color: var(--primary-bright);
  box-shadow: var(--shadow-sm);
}

.contact-card-icon {
  width: 46px;
  height: 46px;
  border-radius: 12px;
  background: rgba(0, 119, 182, 0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-blue);
  flex-shrink: 0;
}

.contact-card-icon svg {
  width: 22px;
  height: 22px;
}

.contact-card-details h4 {
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--primary-deep);
  margin-bottom: 4px;
}

.contact-card-details a,
.contact-card-details p {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-main);
  line-height: 1.4;
}

.contact-card-details a:hover {
  color: var(--primary-blue);
}

.contact-card-details small {
  display: block;
  font-size: 0.78rem;
  color: var(--text-light);
  margin-top: 4px;
}

/* Dealership Highlight Callout */
.dealership-callout {
  background: linear-gradient(135deg, rgba(0, 119, 182, 0.08) 0%, rgba(0, 180, 216, 0.12) 100%);
  border: 1px solid rgba(0, 180, 216, 0.3);
  border-radius: var(--radius-md);
  padding: 24px;
}

.dealership-callout h4 {
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--primary-deep);
  margin-bottom: 6px;
}

.dealership-callout p {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 16px;
}

/* Contact Form Column */
.contact-form-col {
  background: var(--surface-soft);
  border: 1px solid var(--border-ice);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow-sm);
}

.contact-form-col h3 {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--primary-deep);
  margin-bottom: 8px;
}

.contact-form-col p {
  color: var(--text-muted);
  font-size: 0.92rem;
  margin-bottom: 26px;
}

.enquiry-form {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.form-group-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-control-item label {
  display: block;
  font-size: 0.84rem;
  font-weight: 700;
  color: var(--primary-deep);
  margin-bottom: 6px;
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 12px 14px;
  background: var(--surface-white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  font-size: 0.92rem;
  color: var(--text-main);
  transition: var(--transition);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  border-color: var(--primary-blue);
  box-shadow: 0 0 0 3px rgba(0, 119, 182, 0.12);
}

.form-textarea {
  resize: vertical;
  min-height: 110px;
}

.form-actions-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 10px;
}

.form-actions-row .btn {
  flex: 1 1 200px;
}

.form-notice {
  font-size: 0.78rem;
  color: var(--text-light);
  margin-top: 8px;
}

/* --------------------------------------------------------------------------
   14. FOOTER & FLOATING CTA
   -------------------------------------------------------------------------- */
.footer {
  background: var(--primary-deep);
  color: #ffffff;
  padding-top: 70px;
  padding-bottom: 30px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-top-grid {
  display: grid;
  grid-template-columns: 1.4fr 0.9fr 0.9fr 1.2fr;
  gap: 40px;
  margin-bottom: 50px;
}

.footer-brand img {
  height: 40px;
  width: auto;
  margin-bottom: 18px;
}

.footer-brand p {
  color: #94a3b8;
  font-size: 0.92rem;
  line-height: 1.6;
  max-width: 320px;
  margin-bottom: 22px;
}

.footer-badges {
  display: flex;
  gap: 10px;
}

.footer-badge-pill {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent-cyan);
  background: rgba(56, 189, 248, 0.12);
  padding: 5px 12px;
  border-radius: 6px;
  border: 1px solid rgba(56, 189, 248, 0.25);
}

.footer-column h4 {
  font-size: 1rem;
  font-weight: 800;
  color: #ffffff;
  letter-spacing: -0.01em;
  margin-bottom: 20px;
  position: relative;
}

.footer-column h4::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 0;
  width: 24px;
  height: 2px;
  background: var(--primary-bright);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-links a {
  color: #94a3b8;
  font-size: 0.9rem;
  transition: var(--transition);
}

.footer-links a:hover {
  color: #ffffff;
  padding-left: 4px;
}

.footer-contact-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  color: #cbd5e1;
  font-size: 0.9rem;
}

.footer-contact-item svg {
  width: 18px;
  height: 18px;
  color: var(--accent-cyan);
  flex-shrink: 0;
  margin-top: 2px;
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 0.85rem;
  color: #94a3b8;
}

.footer-bottom-links {
  display: flex;
  gap: 20px;
}

.footer-bottom-links a:hover {
  color: #ffffff;
}

/* Floating WhatsApp Button */
.floating-whatsapp-btn {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 58px;
  height: 58px;
  background: #25d366;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  box-shadow: 0 6px 20px rgba(37, 211, 102, 0.45);
  z-index: 990;
  cursor: pointer;
  transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.floating-whatsapp-btn:hover {
  transform: scale(1.1) rotate(6deg);
}

.floating-whatsapp-btn svg {
  width: 32px;
  height: 32px;
  fill: currentColor;
}

/* Pulse animation ring */
.floating-whatsapp-btn::before {
  content: '';
  position: absolute;
  inset: -6px;
  border-radius: 50%;
  border: 2px solid #25d366;
  opacity: 0.7;
  animation: pulseRipple 2.2s infinite;
}

@keyframes pulseRipple {
  0% { transform: scale(0.9); opacity: 0.8; }
  100% { transform: scale(1.4); opacity: 0; }
}

/* Back to Top Button */
.back-to-top-btn {
  position: fixed;
  bottom: 92px;
  right: 28px;
  width: 44px;
  height: 44px;
  background: var(--surface-white);
  border: 1px solid var(--border-ice);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-deep);
  box-shadow: var(--shadow-sm);
  z-index: 980;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
}

.back-to-top-btn.visible {
  opacity: 1;
  visibility: visible;
}

.back-to-top-btn:hover {
  background: var(--primary-deep);
  color: #ffffff;
  transform: translateY(-3px);
}

.back-to-top-btn svg {
  width: 20px;
  height: 20px;
}

/* --------------------------------------------------------------------------
   15. RESPONSIVE BREAKPOINTS (MOBILE & TABLET OPTIMIZATIONS)
   Simple, robust, non-overengineered rules ensuring zero horizontal overflow
   and comfortable touch ergonomics on all screen sizes.
   -------------------------------------------------------------------------- */

/* TABLET LANDSCAPE & SMALL DESKTOPS (<= 1024px) */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 40px;
    text-align: center;
  }

  .hero-content {
    display: flex;
    flex-direction: column;
    align-items: center;
  }

  .hero-cta-group {
    justify-content: center;
  }

  .hero-trust-bar {
    max-width: 600px;
    margin: 0 auto;
    width: 100%;
  }

  .about-grid {
    grid-template-columns: 1fr;
    gap: 50px;
  }

  .about-content-column {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
  }

  .process-card,
  .process-card.reverse {
    grid-template-columns: 1fr;
  }

  .process-card.reverse .process-card-content {
    order: 1;
  }

  .process-card.reverse .process-card-media {
    order: 2;
  }

  .process-card-media {
    min-height: 280px;
    max-height: 380px;
  }

  .products-lineup-banner {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .planner-interface {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .contact-layout {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .footer-top-grid {
    grid-template-columns: 1fr 1fr;
    gap: 36px;
  }
}

/* TABLET PORTRAIT (<= 920px) */
@media (max-width: 920px) {
  :root {
    --header-height: 72px;
  }

  .nav-menu,
  .header-actions .header-cta-btn {
    display: none;
  }

  .mobile-nav-toggle {
    display: flex;
  }

  .section-padding {
    padding-top: 64px;
    padding-bottom: 64px;
  }

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

/* MOBILE DEVICES & PHONES (<= 768px) */
@media (max-width: 768px) {
  :root {
    --header-height: 68px;
  }

  .hero-trust-bar {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .purity-specs-bar {
    margin-top: 20px;
    padding: 24px 16px;
    border-radius: var(--radius-sm);
  }

  .purity-specs-grid {
    grid-template-columns: 1fr 1fr;
    row-gap: 20px;
  }

  .spec-item:nth-child(2) {
    border-right: none;
  }

  .secondary-stages-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .about-features-list {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .about-overlay-badge {
    position: static;
    margin: 18px auto 0;
    max-width: 100%;
    justify-content: center;
  }

  .hero-visual-wrapper {
    flex-direction: column;
    width: 100%;
    gap: 12px;
  }

  .card-top-left,
  .card-bottom-right {
    position: static;
    margin: 6px auto;
    width: 100%;
    max-width: 320px;
    animation: none;
  }

  .form-group-row {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .form-actions-row {
    flex-direction: column;
  }

  .form-actions-row .btn {
    width: 100%;
    flex: 1 1 100%;
  }

  .footer-top-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 14px;
    text-align: center;
  }

  /* Prevent iOS Safari input zoom */
  .form-input,
  .form-select,
  .form-textarea,
  .planner-select,
  .planner-input {
    font-size: 16px;
  }
}

/* SMALL PHONES & COMPACT VIEWPORTS (<= 480px) */
@media (max-width: 480px) {
  .container {
    padding-left: 16px;
    padding-right: 16px;
  }

  .section-title {
    font-size: 1.85rem;
  }

  .hero-title {
    font-size: 2.1rem;
    line-height: 1.15;
  }

  .hero-cta-group {
    flex-direction: column;
    width: 100%;
  }

  .hero-cta-group .btn {
    width: 100%;
  }

  .purity-specs-grid {
    grid-template-columns: 1fr;
    row-gap: 14px;
  }

  .spec-item {
    border-right: none;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding: 0 0 12px 0;
  }

  .spec-item:last-child {
    border-bottom: none;
  }

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

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

  .gallery-item {
    height: 220px;
  }

  .gallery-filters {
    gap: 6px;
  }

  .filter-btn {
    padding: 7px 14px;
    font-size: 0.8rem;
  }

  .planner-card {
    padding: 24px 14px;
  }

  .planner-interface {
    padding: 16px 12px;
  }

  .contact-form-col {
    padding: 24px 16px;
  }

  .process-card-content {
    padding: 24px 16px;
  }

  .lineup-features {
    flex-direction: column;
    align-items: stretch;
  }

  .floating-whatsapp-btn {
    bottom: 18px;
    right: 18px;
    width: 50px;
    height: 50px;
  }

  .floating-whatsapp-btn svg {
    width: 28px;
    height: 28px;
  }

  .back-to-top-btn {
    bottom: 76px;
    right: 20px;
    width: 38px;
    height: 38px;
  }

  .mobile-drawer {
    width: min(300px, 85vw);
    padding: 85px 20px 30px;
  }
}