/* =============================================
   Shampoo Polygonum Landing Page — Design System
   Mobile First | Premium Dark + Green Theme
   ============================================= */

/* ── Google Fonts ─────────────────────────────── */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=Outfit:wght@400;500;600;700;800;900&display=swap');

/* ── CSS Custom Properties ────────────────────── */
:root {
  /* Primary palette */
  --green-50: #e8f5e9;
  --green-100: #c8e6c9;
  --green-400: #66bb6a;
  --green-500: #43a047;
  --green-600: #2e7d32;
  --green-700: #1b5e20;
  --green-gradient: linear-gradient(135deg, #43a047 0%, #2e7d32 50%, #1b5e20 100%);
  --green-glow: 0 0 30px rgba(67, 160, 71, 0.3);

  /* Accent */
  --gold-400: #ffca28;
  --gold-500: #ffc107;
  --gold-gradient: linear-gradient(135deg, #ffd54f, #ffb300);

  /* Urgency */
  --red-400: #ef5350;
  --red-500: #e53935;
  --red-600: #c62828;
  --red-gradient: linear-gradient(135deg, #ef5350, #c62828);

  /* Neutrals */
  --dark-900: #0a0f14;
  --dark-800: #0f1923;
  --dark-700: #1a2634;
  --dark-600: #243242;
  --dark-500: #2f4050;
  --white: #ffffff;
  --gray-50: #f8f9fa;
  --gray-100: #f1f3f5;
  --gray-200: #e9ecef;
  --gray-300: #dee2e6;
  --gray-400: #ced4da;
  --gray-500: #adb5bd;
  --gray-600: #868e96;
  --gray-700: #495057;
  --gray-800: #343a40;
  --gray-900: #212529;

  /* Typography */
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-heading: 'Outfit', 'Inter', sans-serif;

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;

  /* Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.12);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.15);
  --shadow-lg: 0 8px 30px rgba(0,0,0,0.2);
  --shadow-xl: 0 16px 50px rgba(0,0,0,0.25);
  --shadow-green: 0 4px 20px rgba(46, 125, 50, 0.4);

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms cubic-bezier(0.4, 0, 0.2, 1);

  /* Container */
  --container-max: 1100px;
  --container-padding: 1rem;
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--gray-800);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

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

button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
}

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

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  border: 0;
}

/* ── Animations ───────────────────────────────── */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.05); }
}

@keyframes shimmer {
  0% { background-position: -200% center; }
  100% { background-position: 200% center; }
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

@keyframes bounceIn {
  0% { transform: scale(0.3); opacity: 0; }
  50% { transform: scale(1.05); }
  70% { transform: scale(0.9); }
  100% { transform: scale(1); opacity: 1; }
}

@keyframes checkmark {
  0% { stroke-dashoffset: 100; }
  100% { stroke-dashoffset: 0; }
}

.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate-on-scroll.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── Top Banner ───────────────────────────────── */
.top-banner {
  background: var(--green-gradient);
  color: var(--white);
  padding: 10px 0;
  overflow: hidden;
  position: relative;
}

.top-banner__track {
  display: flex;
  animation: scrollBanner 20s linear infinite;
  width: max-content;
}

.top-banner__text {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.5px;
  white-space: nowrap;
  padding: 0 3rem;
}

.top-banner__text span {
  margin: 0 0.5rem;
}

/* ── Hero Section ─────────────────────────────── */
.hero {
  background: var(--dark-800);
  padding: var(--space-xl) 0 var(--space-2xl);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -30%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(46,125,50,0.15) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl);
  align-items: center;
}

.hero__image-wrapper {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
}

.hero__image-wrapper img {
  width: 100%;
  border-radius: var(--radius-lg);
  transition: transform var(--transition-slow);
}

.hero__image-wrapper:hover img {
  transform: scale(1.03);
}

/* Image gallery thumbnails */
.hero__thumbnails {
  display: flex;
  gap: var(--space-sm);
  margin-top: var(--space-md);
  overflow-x: auto;
  padding-bottom: var(--space-sm);
  scrollbar-width: none;
}

.hero__thumbnails::-webkit-scrollbar {
  display: none;
}

.hero__thumb {
  flex-shrink: 0;
  width: 70px;
  height: 70px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  cursor: pointer;
  border: 2px solid transparent;
  transition: border-color var(--transition-fast);
  opacity: 0.6;
  transition: opacity var(--transition-fast), border-color var(--transition-fast);
}

.hero__thumb.active,
.hero__thumb:hover {
  border-color: var(--green-500);
  opacity: 1;
}

.hero__thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Hero info */
.hero__info {
  color: var(--white);
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--red-gradient);
  color: var(--white);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  margin-bottom: var(--space-md);
  animation: pulse 2s ease infinite;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.hero__title {
  font-family: var(--font-heading);
  font-size: 1.75rem;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: var(--space-md);
  background: linear-gradient(135deg, var(--white) 0%, var(--gray-300) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__subtitle {
  font-size: 1rem;
  color: var(--gray-400);
  margin-bottom: var(--space-lg);
  font-weight: 300;
}

/* Ratings */
.hero__ratings {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-lg);
}

.hero__stars {
  display: flex;
  gap: 2px;
}

.hero__stars .star {
  color: var(--gold-500);
  font-size: 1.1rem;
}

.hero__reviews-count {
  font-size: 0.85rem;
  color: var(--gray-500);
}

/* Pricing */
.hero__pricing {
  display: flex;
  align-items: baseline;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
  flex-wrap: wrap;
}

.hero__price-current {
  font-family: var(--font-heading);
  font-size: 2.2rem;
  font-weight: 900;
  color: var(--green-400);
}

.hero__price-original {
  font-size: 1.2rem;
  color: var(--gray-600);
  text-decoration: line-through;
}

.hero__price-discount {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: var(--green-600);
  color: var(--white);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: var(--radius-full);
}

/* CTA Button */
.hero__cta {
  width: 100%;
  padding: 16px 32px;
  background: var(--green-gradient);
  color: var(--white);
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 800;
  border-radius: var(--radius-md);
  text-align: center;
  cursor: pointer;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
  box-shadow: var(--shadow-green);
  position: relative;
  overflow: hidden;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.hero__cta::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
  animation: shimmer 3s ease infinite;
}

.hero__cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 30px rgba(46,125,50,0.5);
}

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

.hero__cta-sub {
  font-size: 0.8rem;
  font-weight: 500;
  opacity: 0.9;
  margin-top: 4px;
  display: block;
}

/* Urgency elements */
.hero__urgency {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  margin-top: var(--space-lg);
}

.hero__urgency-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 0.9rem;
  color: var(--gray-300);
}

.hero__urgency-item .icon {
  font-size: 1.2rem;
}

.hero__urgency-item.hot {
  color: var(--red-400);
  font-weight: 600;
  animation: pulse 2s ease infinite;
}

/* ── Benefits Strip ───────────────────────────── */
.benefits {
  background: var(--green-gradient);
  padding: var(--space-xl) 0;
}

.benefits__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
  text-align: center;
}

.benefit {
  color: var(--white);
  padding: var(--space-md);
}

.benefit__icon {
  font-size: 2rem;
  margin-bottom: var(--space-sm);
}

.benefit__title {
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 700;
  line-height: 1.3;
}

/* ── Product Description Section ──────────────── */
.product-details {
  padding: var(--space-3xl) 0;
  background: var(--gray-50);
}

.product-details__title {
  font-family: var(--font-heading);
  font-size: 1.6rem;
  font-weight: 800;
  text-align: center;
  margin-bottom: var(--space-sm);
  color: var(--dark-800);
}

.product-details__subtitle {
  text-align: center;
  color: var(--gray-600);
  margin-bottom: var(--space-2xl);
  font-size: 0.95rem;
}

.features-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
}

.feature-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
  border: 1px solid var(--gray-200);
}

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

.feature-card__icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: var(--green-50);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: var(--space-md);
}

.feature-card__title {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: var(--space-sm);
  color: var(--dark-800);
}

.feature-card__text {
  font-size: 0.9rem;
  color: var(--gray-600);
  line-height: 1.6;
}

/* ── Testimonials ─────────────────────────────── */
.testimonials {
  padding: var(--space-3xl) 0;
  background: var(--dark-800);
  position: relative;
  overflow: hidden;
}

.testimonials::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(ellipse at 20% 50%, rgba(46,125,50,0.1) 0%, transparent 50%);
  pointer-events: none;
}

.testimonials__title {
  font-family: var(--font-heading);
  font-size: 1.6rem;
  font-weight: 800;
  text-align: center;
  color: var(--white);
  margin-bottom: var(--space-sm);
}

.testimonials__subtitle {
  text-align: center;
  color: var(--gray-500);
  margin-bottom: var(--space-2xl);
  font-size: 0.9rem;
}

.testimonials__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
}

.testimonial-card {
  background: rgba(255,255,255,0.05);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  transition: transform var(--transition-base), border-color var(--transition-base);
}

.testimonial-card:hover {
  transform: translateY(-4px);
  border-color: rgba(67,160,71,0.3);
}

.testimonial-card__header {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-bottom: var(--space-md);
}

.testimonial-card__avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--green-gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-weight: 700;
  font-size: 1.1rem;
  flex-shrink: 0;
}

.testimonial-card__name {
  font-family: var(--font-heading);
  font-weight: 700;
  color: var(--white);
  font-size: 0.95rem;
}

.testimonial-card__verified {
  font-size: 0.75rem;
  color: var(--green-400);
  display: flex;
  align-items: center;
  gap: 4px;
}

.testimonial-card__stars {
  display: flex;
  gap: 2px;
  margin-bottom: var(--space-md);
}

.testimonial-card__stars .star {
  color: var(--gold-500);
  font-size: 1rem;
}

.testimonial-card__text {
  color: var(--gray-400);
  font-size: 0.9rem;
  line-height: 1.7;
  font-style: italic;
}

/* ── Trust Section ────────────────────────────── */
.trust {
  padding: var(--space-2xl) 0;
  background: var(--white);
}

.trust__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-md);
}

.trust__item {
  text-align: center;
  padding: var(--space-lg);
  border-radius: var(--radius-md);
  background: var(--gray-50);
  border: 1px solid var(--gray-200);
}

.trust__icon {
  font-size: 2rem;
  margin-bottom: var(--space-sm);
}

.trust__label {
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--gray-700);
  line-height: 1.3;
}

/* ── Order Modal ──────────────────────────────── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: 1000;
  display: none;
  align-items: flex-start;
  justify-content: center;
  padding: var(--space-md);
  overflow-y: auto;
  animation: fadeIn 0.3s ease;
}

.modal-overlay.active {
  display: flex;
}

.modal {
  background: var(--white);
  border-radius: var(--radius-xl);
  width: 100%;
  max-width: 520px;
  margin: var(--space-xl) auto;
  box-shadow: var(--shadow-xl);
  animation: slideDown 0.4s ease;
  position: relative;
  overflow: hidden;
}

.modal__close {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--gray-100);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  color: var(--gray-700);
  transition: background var(--transition-fast);
  z-index: 2;
}

.modal__close:hover {
  background: var(--gray-200);
}

.modal__header {
  background: var(--dark-800);
  color: var(--white);
  padding: var(--space-xl) var(--space-xl) var(--space-lg);
  text-align: center;
}

.modal__header-title {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 800;
  margin-bottom: var(--space-xs);
}

.modal__header-sub {
  font-size: 0.85rem;
  color: var(--gray-400);
}

/* Offer selector */
.offer-selector {
  padding: var(--space-lg) var(--space-xl);
}

.offer-selector__label {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--gray-700);
  margin-bottom: var(--space-md);
  text-align: center;
}

.offer-card {
  border: 2px solid var(--gray-200);
  border-radius: var(--radius-md);
  padding: var(--space-md) var(--space-lg);
  margin-bottom: var(--space-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  gap: var(--space-md);
  position: relative;
  overflow: hidden;
}

.offer-card::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: var(--gray-300);
  transition: background var(--transition-fast);
}

.offer-card:hover {
  border-color: var(--green-400);
  background: var(--green-50);
}

.offer-card:hover::before {
  background: var(--green-400);
}

.offer-card.selected {
  border-color: var(--green-500);
  background: var(--green-50);
  box-shadow: var(--shadow-green);
}

.offer-card.selected::before {
  background: var(--green-500);
}

.offer-card__radio {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: 2px solid var(--gray-400);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: all var(--transition-fast);
}

.offer-card.selected .offer-card__radio {
  border-color: var(--green-500);
  background: var(--green-500);
}

.offer-card.selected .offer-card__radio::after {
  content: '✓';
  color: var(--white);
  font-size: 0.75rem;
  font-weight: 700;
}

.offer-card__content {
  flex: 1;
}

.offer-card__title {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--dark-800);
}

.offer-card__badge {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  margin-top: 4px;
}

.offer-card__badge--hot {
  background: var(--red-gradient);
  color: var(--white);
}

.offer-card__badge--popular {
  background: var(--gold-gradient);
  color: var(--dark-800);
}

.offer-card__badge--best {
  background: var(--green-gradient);
  color: var(--white);
}

.offer-card__pricing {
  text-align: right;
  flex-shrink: 0;
}

.offer-card__price-original {
  font-size: 0.8rem;
  color: var(--gray-500);
  text-decoration: line-through;
}

.offer-card__price {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--green-600);
}

.offer-card__per-unit {
  font-size: 0.7rem;
  color: var(--gray-500);
}

/* Stock urgent */
.stock-urgent {
  text-align: center;
  padding: var(--space-sm) var(--space-xl);
  color: var(--red-500);
  font-weight: 700;
  font-size: 0.9rem;
  animation: pulse 2s ease infinite;
}

/* ── Order Form ───────────────────────────────── */
.order-form {
  padding: 0 var(--space-xl) var(--space-xl);
}

.order-form__title {
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--gray-700);
  text-align: center;
  margin-bottom: var(--space-lg);
}

.form-group {
  margin-bottom: var(--space-md);
}

.form-group label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--gray-700);
  margin-bottom: 6px;
}

.form-group label .required {
  color: var(--red-500);
}

.form-input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.form-input-wrapper .input-icon {
  position: absolute;
  left: 12px;
  font-size: 1.1rem;
  color: var(--gray-500);
  pointer-events: none;
  z-index: 1;
}

.form-input,
.form-select {
  width: 100%;
  padding: 12px 14px 12px 42px;
  border: 1.5px solid var(--gray-300);
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 0.9rem;
  color: var(--gray-800);
  background: var(--white);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  -webkit-appearance: none;
  appearance: none;
}

.form-input:focus,
.form-select:focus {
  outline: none;
  border-color: var(--green-500);
  box-shadow: 0 0 0 3px rgba(67,160,71,0.15);
}

.form-input.error,
.form-select.error {
  border-color: var(--red-500);
  box-shadow: 0 0 0 3px rgba(229,57,53,0.1);
}

.form-error {
  font-size: 0.75rem;
  color: var(--red-500);
  margin-top: 4px;
  display: none;
}

.form-error.visible {
  display: block;
}

.form-select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 16 16'%3E%3Cpath fill='%23495057' d='M4.646 5.646a.5.5 0 01.708 0L8 8.293l2.646-2.647a.5.5 0 01.708.708l-3 3a.5.5 0 01-.708 0l-3-3a.5.5 0 010-.708z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 36px;
}

/* Row for two-columns */
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
}

/* Order summary */
.order-summary {
  background: var(--gray-50);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  margin-top: var(--space-lg);
  margin-bottom: var(--space-lg);
  border: 1px solid var(--gray-200);
}

.order-summary__row {
  display: flex;
  justify-content: space-between;
  padding: var(--space-xs) 0;
  font-size: 0.9rem;
  color: var(--gray-600);
}

.order-summary__row.total {
  border-top: 2px solid var(--gray-300);
  margin-top: var(--space-sm);
  padding-top: var(--space-sm);
  font-weight: 800;
  font-size: 1.1rem;
  color: var(--dark-800);
}

.order-summary__row .free {
  color: var(--green-500);
  font-weight: 700;
}

/* Submit button */
.submit-btn {
  width: 100%;
  padding: 16px;
  background: var(--green-gradient);
  color: var(--white);
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 800;
  border-radius: var(--radius-md);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
  box-shadow: var(--shadow-green);
  position: relative;
  overflow: hidden;
}

.submit-btn::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
  animation: shimmer 3s ease infinite;
}

.submit-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 30px rgba(46,125,50,0.5);
}

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

.submit-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

.submit-btn:disabled::after {
  display: none;
}

.submit-btn .spinner {
  display: none;
  width: 20px;
  height: 20px;
  border: 3px solid rgba(255,255,255,0.3);
  border-top-color: var(--white);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin: 0 auto;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.submit-btn.loading .spinner {
  display: block;
}

.submit-btn.loading .btn-text {
  display: none;
}

.submit-note {
  text-align: center;
  font-size: 0.75rem;
  color: var(--gray-500);
  margin-top: var(--space-sm);
}

.submit-note .icon {
  color: var(--green-500);
}

/* ── Floating CTA (Mobile) ────────────────────── */
.floating-cta {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--dark-900);
  border-top: 1px solid var(--dark-600);
  padding: var(--space-sm) var(--space-md);
  z-index: 900;
  display: flex;
  align-items: center;
  gap: var(--space-md);
  transform: translateY(100%);
  transition: transform var(--transition-base);
}

.floating-cta.visible {
  transform: translateY(0);
}

.floating-cta__price {
  flex-shrink: 0;
}

.floating-cta__price-current {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.1rem;
  color: var(--green-400);
}

.floating-cta__price-original {
  font-size: 0.75rem;
  color: var(--gray-600);
  text-decoration: line-through;
}

.floating-cta__btn {
  flex: 1;
  padding: 12px 16px;
  background: var(--green-gradient);
  color: var(--white);
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 0.85rem;
  border-radius: var(--radius-sm);
  text-align: center;
  text-transform: uppercase;
  letter-spacing: 0.3px;
}

/* ── Footer ───────────────────────────────────── */
.footer {
  background: var(--dark-900);
  color: var(--gray-600);
  padding: var(--space-xl) 0;
  text-align: center;
  font-size: 0.8rem;
}

.footer__links {
  display: flex;
  justify-content: center;
  gap: var(--space-lg);
  flex-wrap: wrap;
  margin-bottom: var(--space-md);
}

.footer__link {
  color: var(--gray-500);
  transition: color var(--transition-fast);
}

.footer__link:hover {
  color: var(--green-400);
}

/* ── Thank You Page ───────────────────────────── */
.thankyou {
  min-height: 100vh;
  background: var(--dark-800);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-2xl);
  text-align: center;
  color: var(--white);
}

.thankyou__check {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  background: var(--green-gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-xl);
  animation: bounceIn 0.8s ease;
  box-shadow: var(--green-glow);
}

.thankyou__check .icon {
  font-size: 3rem;
  color: var(--white);
}

.thankyou__title {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: var(--space-md);
  background: linear-gradient(135deg, var(--white) 0%, var(--green-400) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.thankyou__subtitle {
  font-size: 1rem;
  color: var(--gray-400);
  margin-bottom: var(--space-2xl);
  max-width: 450px;
}

.thankyou__order-card {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  width: 100%;
  max-width: 420px;
  margin-bottom: var(--space-2xl);
  backdrop-filter: blur(10px);
}

.thankyou__order-row {
  display: flex;
  justify-content: space-between;
  padding: var(--space-sm) 0;
  border-bottom: 1px solid rgba(255,255,255,0.05);
  font-size: 0.9rem;
}

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

.thankyou__order-label {
  color: var(--gray-500);
}

.thankyou__order-value {
  font-weight: 600;
  color: var(--white);
}

.thankyou__order-value.highlight {
  color: var(--green-400);
  font-size: 1.1rem;
}

.thankyou__whatsapp-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 14px 28px;
  background: #25d366;
  color: var(--white);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1rem;
  border-radius: var(--radius-md);
  margin-bottom: var(--space-lg);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
  box-shadow: 0 4px 20px rgba(37,211,102,0.3);
}

.thankyou__whatsapp-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 30px rgba(37,211,102,0.4);
}

.thankyou__back-link {
  color: var(--gray-500);
  font-size: 0.85rem;
  transition: color var(--transition-fast);
}

.thankyou__back-link:hover {
  color: var(--green-400);
}

/* ── Confetti canvas ──────────────────────────── */
#confetti-canvas {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 9999;
}

/* ── Responsive ───────────────────────────────── */
@media (min-width: 640px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .trust__grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

@media (min-width: 768px) {
  :root {
    --container-padding: 2rem;
  }

  .hero__title {
    font-size: 2.2rem;
  }

  .hero__price-current {
    font-size: 2.8rem;
  }

  .product-details__title {
    font-size: 2rem;
  }

  .testimonials__title {
    font-size: 2rem;
  }

  .floating-cta {
    display: none;
  }
}

@media (min-width: 992px) {
  .hero__grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
  }

  .hero__title {
    font-size: 2.5rem;
  }

  .features-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .testimonials__grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 1200px) {
  .hero__title {
    font-size: 2.8rem;
  }
}