/* ── DESIGN TOKENS (from Stitch: AquaPure Landing Page) ── */
:root {
  --primary:            #001736;
  --secondary:          #0051d5;
  --tertiary:           #001a25;
  --primary-container:  #002b5b;
  --tertiary-container: #003041;
  --tertiary-fixed:     #c0e8ff;
  --surface:            #f7f9fb;
  --surface-low:        #f2f4f6;
  --surface-container:  #eceef0;
  --on-surface:         #191c1e;
  --on-surface-variant: #43474f;
  --on-primary:         #ffffff;
  --on-primary-container: #7594ca;
  --on-tertiary-fixed:  #001e2b;
  --outline-variant:    #c4c6d0;
  --secondary-container:#316bf3;

  --font-headline: 'Plus Jakarta Sans', sans-serif;
  --font-body:     'Manrope', sans-serif;

  --radius-card: 32px;
  --radius-btn:  9999px;
  --radius-xl:   24px;
  --section-gap: 7rem;
}

/* ── RESET ── */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: var(--surface);
  color: var(--on-surface);
  overflow-x: hidden;
}

/* ── UTILITIES ── */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

.glass-card {
  background: rgba(255,255,255,0.7);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border: 1px solid rgba(255,255,255,0.4);
  box-shadow: 0 8px 32px rgba(0,23,54,0.06);
}

.liquid-hover {
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.liquid-hover:hover {
  transform: translateY(-4px) scale(1.02);
  box-shadow: 0 20px 40px rgba(0,81,213,0.12);
}

.inner-glow {
  box-shadow: inset 0 1px 1px rgba(255,255,255,0.3);
}

.label-caps {
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--secondary);
  display: block;
  margin-bottom: 1rem;
}

.body-lg {
  font-size: 1.15rem;
  line-height: 1.7;
  color: var(--on-surface-variant);
  margin-bottom: 2rem;
}

/* ── NAV ── */
#navbar {
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 100;
  padding: 1rem 2rem;
  transition: background 0.4s, box-shadow 0.4s;
}

#navbar.scrolled {
  background: rgba(255,255,255,0.75);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255,255,255,0.2);
  box-shadow: 0 4px 30px rgba(0,23,54,0.06);
}

.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.nav-logo {
  font-family: var(--font-headline);
  font-size: 1.4rem;
  font-weight: 800;
  color: #fff;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  transition: color 0.4s;
}

#navbar.scrolled .nav-logo { color: var(--primary); }

.nav-drop {
  color: var(--secondary);
  font-variation-settings: 'FILL' 1;
}

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

.nav-links a {
  font-family: var(--font-headline);
  font-size: 0.9rem;
  font-weight: 500;
  text-decoration: none;
  color: rgba(255,255,255,0.85);
  transition: color 0.2s;
}

#navbar.scrolled .nav-links a { color: var(--on-surface-variant); }

.nav-links a:hover,
#navbar.scrolled .nav-links a:hover { color: var(--secondary); }

.btn-nav {
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
  background: var(--secondary);
  color: #fff;
  padding: 0.6rem 1.5rem;
  border-radius: var(--radius-btn);
  transition: transform 0.2s, opacity 0.2s;
  white-space: nowrap;
}

.btn-nav:hover { transform: scale(1.05); opacity: 0.9; }

/* ── HERO ── */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding: var(--section-gap) 2rem;
}

.hero-img-wrap {
  position: absolute;
  inset: 0;
}

.hero-bg {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scale(1.1);
  transition: transform 0.1s linear;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to right, rgba(255,255,255,0.9) 0%, rgba(255,255,255,0.7) 50%, transparent 100%);
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
}

.badge {
  display: inline-block;
  background: var(--tertiary-fixed);
  color: var(--on-tertiary-fixed);
  font-family: var(--font-body);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.4rem 1rem;
  border-radius: var(--radius-btn);
  margin-bottom: 1.5rem;
}

.hero-title {
  font-family: var(--font-headline);
  font-size: clamp(3rem, 8vw, 5.5rem);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.03em;
  color: var(--primary);
  margin-bottom: 1.2rem;
  max-width: 680px;
}

.hero-sub {
  font-size: clamp(1rem, 2vw, 1.25rem);
  line-height: 1.65;
  color: var(--on-surface-variant);
  max-width: 520px;
  margin-bottom: 2.5rem;
}

.hero-btns {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-headline);
  font-size: 1rem;
  font-weight: 700;
  text-decoration: none;
  background: var(--secondary);
  color: #fff;
  padding: 1rem 2.2rem;
  border-radius: var(--radius-btn);
  box-shadow: 0 8px 24px rgba(0,81,213,0.25);
  transition: transform 0.2s, box-shadow 0.2s;
}

.btn-primary:hover { transform: scale(1.04); box-shadow: 0 12px 32px rgba(0,81,213,0.3); }

.btn-glass {
  display: inline-flex;
  align-items: center;
  font-family: var(--font-headline);
  font-size: 1rem;
  font-weight: 700;
  text-decoration: none;
  color: var(--secondary);
  background: rgba(255,255,255,0.7);
  backdrop-filter: blur(24px);
  border: 1px solid rgba(255,255,255,0.4);
  padding: 1rem 2.2rem;
  border-radius: var(--radius-btn);
  transition: background 0.2s;
}

.btn-glass:hover { background: #fff; }

.hero-trust {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-top: 2.5rem;
}

.trust-avatars {
  display: flex;
  align-items: center;
}

.trust-avatars img {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 3px solid #fff;
  margin-left: -10px;
  object-fit: cover;
}

.trust-avatars img:first-child { margin-left: 0; }

.trust-more {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 3px solid #fff;
  background: var(--primary-container);
  color: #fff;
  font-size: 0.7rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-left: -10px;
}

.hero-trust p {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--on-surface-variant);
}

.wave-bottom {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  z-index: 2;
}

.wave-bottom svg { display: block; }

/* ── SECTIONS ── */
.section { padding: var(--section-gap) 0; }
.section-light { background: var(--surface-low); }
.section-dark  { background: var(--primary); color: #fff; }

.section-title {
  font-family: var(--font-headline);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--primary);
  text-align: center;
  margin-bottom: 0.75rem;
}

.section-title.left { text-align: left; }
.section-dark .section-title { color: #fff; }

.section-sub {
  text-align: center;
  color: var(--on-surface-variant);
  font-size: 1.05rem;
  max-width: 540px;
  margin: 0 auto 3.5rem;
  line-height: 1.6;
}

/* ── STATS ── */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.5rem;
}

.stat-card {
  border-radius: var(--radius-card);
  padding: 2.5rem 2rem;
  text-align: center;
}

.stat-icon {
  font-size: 2.5rem;
  color: var(--secondary);
  margin-bottom: 0.8rem;
  font-variation-settings: 'FILL' 1;
  display: block;
}

.stat-number {
  font-family: var(--font-headline);
  font-size: 3.2rem;
  font-weight: 800;
  color: var(--primary);
}

.stat-unit {
  font-family: var(--font-headline);
  font-size: 2rem;
  font-weight: 700;
  color: var(--secondary);
}

.stat-card p {
  font-size: 0.9rem;
  color: var(--on-surface-variant);
  margin-top: 0.5rem;
  line-height: 1.4;
}

/* ── IMPORTANCE ── */
.importance-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: center;
}

@media (max-width: 860px) {
  .importance-grid { grid-template-columns: 1fr; }
}

.feature-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-top: 1.5rem;
}

.feature-item {
  display: flex;
  align-items: flex-start;
  gap: 1.2rem;
  padding: 1.4rem;
  border-radius: var(--radius-xl);
}

.feature-item.dark-card {
  background: var(--primary-container);
  border: none;
  backdrop-filter: none;
}

.feature-item.dark-card h3,
.feature-item.dark-card p { color: var(--on-primary-container); }

.feature-icon-wrap {
  width: 52px;
  height: 52px;
  border-radius: 1rem;
  background: rgba(0,81,213,0.08);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.feature-icon-wrap .material-symbols-outlined { color: var(--secondary); font-size: 1.6rem; }

.feature-icon-wrap.dark { background: rgba(255,255,255,0.12); }
.feature-icon-wrap.dark .material-symbols-outlined { color: #fff; }

.feature-item h3 {
  font-family: var(--font-headline);
  font-size: 1rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 0.3rem;
}

.feature-item p {
  font-size: 0.9rem;
  color: var(--on-surface-variant);
  line-height: 1.5;
}

.importance-img img {
  width: 100%;
  height: 460px;
  object-fit: cover;
  border-radius: var(--radius-card);
  box-shadow: 0 20px 60px rgba(0,23,54,0.15);
  transition: transform 0.4s;
}

.importance-img img:hover { transform: scale(1.02); }

/* ── TRACKER ── */
.tracker-card {
  border-radius: 40px;
  padding: 4rem;
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 5rem;
  position: relative;
  overflow: hidden;
}

@media (max-width: 860px) {
  .tracker-card { flex-direction: column; gap: 2.5rem; padding: 2.5rem; }
}

.tracker-blob {
  position: absolute;
  top: -60px;
  right: -60px;
  width: 320px;
  height: 320px;
  background: rgba(0,81,213,0.07);
  border-radius: 50%;
  filter: blur(80px);
  pointer-events: none;
}

.tracker-text { flex: 1; }

.tracker-text h2 {
  font-family: var(--font-headline);
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
}

.tracker-text p {
  color: var(--on-surface-variant);
  font-size: 1.05rem;
  line-height: 1.7;
  margin-bottom: 2rem;
}

.progress-bar-wrap { max-width: 480px; }

.progress-bar {
  width: 100%;
  height: 14px;
  background: var(--surface-container);
  border-radius: 999px;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  width: 72%;
  background: var(--secondary);
  border-radius: 999px;
  position: relative;
  overflow: hidden;
}

.progress-fill::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
  animation: shimmer 2s infinite;
}

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

.progress-labels {
  display: flex;
  justify-content: space-between;
  margin-top: 0.75rem;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--primary);
}

.progress-labels .accent { color: var(--secondary); }

.tracker-img {
  width: 35%;
  flex-shrink: 0;
}

@media (max-width: 860px) { .tracker-img { width: 100%; } }

.tracker-img img {
  width: 100%;
  border-radius: var(--radius-xl);
  box-shadow: 0 20px 50px rgba(0,23,54,0.15);
  transform: rotate(2deg);
  border: 8px solid #fff;
}

/* ── GALLERY ── */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.2rem;
}

.gallery-item {
  position: relative;
  border-radius: var(--radius-card);
  overflow: hidden;
  aspect-ratio: 4/3;
  cursor: pointer;
}

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

.gallery-item:hover img { transform: scale(1.1); }

.gallery-caption {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  padding: 1.2rem;
  background: linear-gradient(transparent, rgba(0,23,54,0.75));
  color: #fff;
  font-family: var(--font-headline);
  font-weight: 700;
  font-size: 1rem;
  transform: translateY(100%);
  transition: transform 0.35s ease;
}

.gallery-item:hover .gallery-caption { transform: translateY(0); }

/* ── SECTION DARK / TESTIMONIALS ── */
.section-dark h2 {
  font-family: var(--font-headline);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 2.5rem;
}

.testimonials-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: start;
}

@media (max-width: 860px) {
  .testimonials-grid { grid-template-columns: 1fr; gap: 3rem; }
}

.testimonial-list { display: flex; flex-direction: column; gap: 2.5rem; }

.testimonial-item {
  border-left: 4px solid var(--secondary-container);
  padding-left: 2rem;
}

.testimonial-item p {
  font-size: 1.1rem;
  font-style: italic;
  font-weight: 300;
  line-height: 1.7;
  color: var(--on-primary-container);
  margin-bottom: 1rem;
}

.author-name {
  display: block;
  font-weight: 700;
  color: #fff;
  font-size: 0.95rem;
}

.author-role {
  display: block;
  font-size: 0.8rem;
  color: var(--on-primary-container);
}

/* ── TIPS ── */
.tips-wrap { display: flex; flex-direction: column; gap: 1.5rem; }

.rating-card {
  border-radius: var(--radius-xl);
  padding: 1.5rem 2rem;
  color: var(--primary);
  max-width: 260px;
}

.stars { display: flex; gap: 2px; color: #f59e0b; margin-bottom: 0.5rem; }
.stars .material-symbols-outlined { font-size: 1.1rem; }
.rating-label { font-size: 0.7rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: #64748b; }
.rating-score { font-family: var(--font-headline); font-size: 1.3rem; font-weight: 700; color: var(--primary); }

.tips-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.tip-card {
  border-radius: var(--radius-xl);
  padding: 1.5rem;
  text-align: center;
}

.tip-icon {
  font-size: 2rem;
  color: var(--secondary);
  display: block;
  margin-bottom: 0.6rem;
  font-variation-settings: 'FILL' 1;
}

.tip-card h3 {
  font-family: var(--font-headline);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 0.3rem;
}

.tip-card p {
  font-size: 0.82rem;
  color: var(--on-surface-variant);
  line-height: 1.5;
}

/* ── FOOTER ── */
footer {
  background: var(--surface-low);
  border-top: 1px solid var(--outline-variant);
  padding: 3rem 2rem;
  border-radius: 32px 32px 0 0;
  margin-top: 0;
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 2rem;
}

.footer-logo {
  font-family: var(--font-headline);
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 0.4rem;
}

.footer-copy {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #64748b;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
}

.footer-links a {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #64748b;
  text-decoration: none;
  transition: color 0.2s;
}

.footer-links a:hover { color: var(--secondary); }

.footer-icons { display: flex; gap: 0.75rem; }

.footer-icon {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: #fff;
  border: 1px solid var(--outline-variant);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: color 0.2s;
}

.footer-icon:hover { color: var(--secondary); }
.footer-icon .material-symbols-outlined { font-size: 1.1rem; }

/* ── FADE IN ── */
.fade-in {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── RESPONSIVE ── */
@media (max-width: 640px) {
  .nav-links { display: none; }
  .tracker-card { padding: 2rem; }
  .tips-grid { grid-template-columns: 1fr; }
  .hero-btns { flex-direction: column; }
}