/* ==========================================================================
   HAND ARTISAN & HAND-DRAWN SKETCHBOOK UI DESIGN SYSTEM
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Caveat:wght@600;700&family=Patrick+Hand&family=Plus+Jakarta+Sans:wght@400;500;600;700;800&family=Playfair+Display:ital,wght@0,700;0,900;1,700&display=swap');

:root {
  /* Handcrafted Artisanal Palette */
  --paper-bg: #fbf7ee;
  --paper-card: #fffdf9;
  --paper-elevated: #f4ece1;
  
  --ink-main: #24160e;
  --ink-secondary: #5c4538;
  --ink-muted: #8d7768;

  --stamp-red: #dc2626;
  --stamp-rose: #f43f5e;
  --honey-gold: #eab308;
  --honey-dark: #ca8a04;
  --matcha-green: #16a34a;
  --craft-brown: #78350f;
  --washi-tape: rgba(234, 179, 8, 0.45);
  
  --whatsapp: #25D366;

  /* Hand-drawn Sketchy Borders */
  --sketch-border: 2.5px solid #24160e;
  --sketch-border-thick: 3.5px solid #24160e;
  --sketch-radius: 255px 15px 225px 15px/15px 225px 15px 255px;
  --sketch-radius-alt: 15px 225px 15px 255px/255px 15px 225px 15px;
  --sketch-radius-pill: 255px 25px 225px 25px/25px 225px 25px 255px;
  
  /* Hand-drawn Inky Hard Drop Shadow */
  --sketch-shadow: 4px 4px 0px #24160e;
  --sketch-shadow-lg: 7px 7px 0px #24160e;
  --sketch-shadow-colored: 5px 5px 0px #ca8a04;

  --font-hand: 'Caveat', cursive;
  --font-sketch: 'Patrick Hand', cursive;
  --font-body: 'Plus Jakarta Sans', sans-serif;
  --font-serif: 'Playfair Display', serif;

  --transition: all 0.25s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-family: var(--font-body);
  background-color: var(--paper-bg);
  color: var(--ink-main);
}

body {
  overflow-x: hidden;
  position: relative;
  background-color: var(--paper-bg);
  /* Organic Craft Grid Notebook Paper Pattern */
  background-image: 
    linear-gradient(rgba(36, 22, 14, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(36, 22, 14, 0.04) 1px, transparent 1px);
  background-size: 28px 28px;
}

/* Handwritten Headlines */
h1, h2, h3 {
  color: var(--ink-main);
  letter-spacing: -0.01em;
}

.hand-script {
  font-family: var(--font-hand);
}

.hand-sketch {
  font-family: var(--font-sketch);
}

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Hand-drawn Top Announcement Banner */
.top-bar {
  background: #fef08a;
  border-bottom: var(--sketch-border);
  padding: 10px 0;
  font-size: 0.95rem;
  font-weight: 700;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 0px #24160e;
}

.top-bar-content {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.hand-stamp-chip {
  background: var(--stamp-red);
  color: #fff;
  font-family: var(--font-sketch);
  font-size: 0.85rem;
  font-weight: 700;
  padding: 2px 12px;
  border: 2px solid #24160e;
  border-radius: var(--sketch-radius-pill);
  transform: rotate(-2deg);
  letter-spacing: 0.04em;
  display: inline-block;
}

/* Header */
.site-header {
  padding: 18px 0;
  background: var(--paper-bg);
  border-bottom: var(--sketch-border);
  position: sticky;
  top: 45px;
  z-index: 90;
}

.nav-wrap {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--ink-main);
}

.brand-icon-sketch {
  width: 48px;
  height: 48px;
  background: #fed7aa;
  border: var(--sketch-border);
  border-radius: var(--sketch-radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  box-shadow: 3px 3px 0px #24160e;
  transform: rotate(-3deg);
}

.brand-title {
  font-family: var(--font-serif);
  font-size: 1.45rem;
  font-weight: 900;
  line-height: 1.1;
}

.brand-title span {
  color: var(--stamp-red);
  font-family: var(--font-hand);
  font-size: 1.6rem;
}

.brand-subtitle {
  font-family: var(--font-sketch);
  font-size: 0.85rem;
  color: var(--ink-secondary);
  letter-spacing: 0.05em;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* Hand-Drawn Sketchy Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 12px 26px;
  font-family: var(--font-sketch);
  font-size: 1.15rem;
  font-weight: 700;
  border: var(--sketch-border-thick);
  border-radius: var(--sketch-radius-pill);
  cursor: pointer;
  text-decoration: none;
  transition: var(--transition);
  box-shadow: var(--sketch-shadow);
  user-select: none;
}

.btn-primary {
  background: #facc15;
  color: var(--ink-main);
}

.btn-primary:hover {
  transform: translate(-3px, -3px) rotate(-1deg);
  box-shadow: 6px 6px 0px #24160e;
  background: #fde047;
}

.btn-whatsapp {
  background: #4ade80;
  color: var(--ink-main);
}

.btn-whatsapp:hover {
  transform: translate(-3px, -3px) rotate(1deg);
  box-shadow: 6px 6px 0px #24160e;
  background: #22c55e;
  color: #fff;
}

.btn-sketch-outline {
  background: #fff;
  color: var(--ink-main);
}

.btn-sketch-outline:hover {
  background: #fef08a;
  transform: translate(-3px, -3px);
  box-shadow: 6px 6px 0px #24160e;
}

.btn-lg {
  padding: 16px 36px;
  font-size: 1.35rem;
}

.wobble-hand {
  animation: handWobble 4s ease-in-out infinite;
}

@keyframes handWobble {
  0%, 100% { transform: rotate(0deg); }
  25% { transform: rotate(-1.5deg); }
  75% { transform: rotate(1.5deg); }
}

/* Hero Section */
.hero {
  padding: 65px 0 50px;
  position: relative;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 40px;
  align-items: center;
}

.hand-badge-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: #ffedd5;
  border: var(--sketch-border);
  border-radius: var(--sketch-radius-pill);
  padding: 6px 18px;
  margin-bottom: 20px;
  font-family: var(--font-sketch);
  font-size: 1rem;
  font-weight: 700;
  color: var(--craft-brown);
  box-shadow: 2px 2px 0px #24160e;
  transform: rotate(-1deg);
}

.hero h1 {
  font-family: var(--font-serif);
  font-size: 3.4rem;
  line-height: 1.12;
  margin-bottom: 20px;
  font-weight: 900;
}

.hero-hand-highlight {
  font-family: var(--font-hand);
  color: var(--stamp-red);
  font-size: 3.8rem;
  display: inline-block;
  transform: rotate(-2deg);
  position: relative;
}

.hero-hand-highlight::after {
  content: "";
  position: absolute;
  bottom: 2px;
  left: 0;
  width: 100%;
  height: 6px;
  background: #facc15;
  z-index: -1;
  border-radius: 4px;
}

.hero-desc {
  font-size: 1.15rem;
  color: var(--ink-secondary);
  line-height: 1.7;
  margin-bottom: 30px;
  max-width: 600px;
}

/* Handcrafted Scrapbook Pricing Card */
.hand-pricing-card {
  background: var(--paper-card);
  border: var(--sketch-border-thick);
  border-radius: var(--sketch-radius);
  padding: 30px;
  box-shadow: var(--sketch-shadow-lg);
  position: relative;
  margin-bottom: 30px;
  transform: rotate(-0.5deg);
}

/* Washi Tape Effect */
.washi-tape-strip {
  position: absolute;
  top: -14px;
  left: 35%;
  width: 130px;
  height: 28px;
  background: var(--washi-tape);
  border-left: 2px dashed rgba(0,0,0,0.15);
  border-right: 2px dashed rgba(0,0,0,0.15);
  transform: rotate(2deg);
  box-shadow: 0 2px 4px rgba(0,0,0,0.08);
}

.price-row {
  display: flex;
  align-items: baseline;
  gap: 16px;
  margin-bottom: 14px;
}

.price-deal-num {
  font-family: var(--font-serif);
  font-size: 3.8rem;
  font-weight: 900;
  color: var(--ink-main);
  line-height: 1;
}

.price-deal-num span {
  font-size: 2.2rem;
  color: var(--stamp-red);
}

.price-original-num {
  font-family: var(--font-sketch);
  font-size: 1.6rem;
  color: var(--ink-muted);
  text-decoration: line-through;
}

.hand-stamp-discount {
  background: #fee2e2;
  border: 2px dashed var(--stamp-red);
  color: var(--stamp-red);
  font-family: var(--font-sketch);
  font-weight: 700;
  font-size: 1.05rem;
  padding: 4px 12px;
  border-radius: var(--sketch-radius-pill);
  transform: rotate(3deg);
}

.hand-timer-strip {
  display: flex;
  align-items: center;
  gap: 12px;
  background: #fef9c3;
  border: var(--sketch-border);
  border-radius: var(--sketch-radius-pill);
  padding: 10px 18px;
  margin-bottom: 22px;
  font-family: var(--font-sketch);
  font-size: 1.15rem;
  color: var(--craft-brown);
}

.hand-timer-digits {
  font-family: var(--font-body);
  font-weight: 800;
  font-size: 1.25rem;
  color: var(--ink-main);
  background: #fff;
  border: 1.5px solid #24160e;
  padding: 2px 10px;
  border-radius: 6px;
}

.hero-cta-group {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.hand-guarantee-list {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 18px;
  font-family: var(--font-sketch);
  font-size: 1.05rem;
  color: var(--ink-secondary);
  margin-top: 18px;
  flex-wrap: wrap;
}

.hand-guarantee-list span {
  display: flex;
  align-items: center;
  gap: 4px;
}

/* Handcrafted Polaroid & Photo Frames */
.polaroid-frame {
  background: #fff;
  border: var(--sketch-border);
  padding: 12px 12px 24px 12px;
  border-radius: var(--sketch-radius-alt);
  box-shadow: var(--sketch-shadow-lg);
  position: relative;
  transition: var(--transition);
}

.polaroid-frame:hover {
  transform: scale(1.02) rotate(-1deg);
  box-shadow: 8px 8px 0px #24160e;
}

.polaroid-img {
  width: 100%;
  height: 280px;
  object-fit: cover;
  border: 1.5px solid #24160e;
  border-radius: 8px;
  display: block;
}

.polaroid-caption {
  font-family: var(--font-hand);
  font-size: 1.35rem;
  font-weight: 700;
  text-align: center;
  margin-top: 10px;
  color: var(--ink-main);
}

.polaroid-washi {
  position: absolute;
  top: -12px;
  left: 35%;
  width: 100px;
  height: 24px;
  background: rgba(250, 204, 21, 0.6);
  border-left: 2px dashed rgba(0,0,0,0.2);
  border-right: 2px dashed rgba(0,0,0,0.2);
  transform: rotate(-3deg);
  z-index: 5;
}

.hero-visual-split {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.gallery-split-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin: 40px 0;
}

.hand-notebook-visual {
  background: #fff;
  border: var(--sketch-border-thick);
  border-radius: var(--sketch-radius-alt);
  padding: 26px;
  box-shadow: var(--sketch-shadow-lg);
  transform: rotate(1.5deg);
  position: relative;
}

.hand-sticker-badge {
  position: absolute;
  top: -16px;
  right: -12px;
  background: #facc15;
  color: var(--ink-main);
  border: var(--sketch-border);
  font-family: var(--font-hand);
  font-size: 1.25rem;
  font-weight: 700;
  padding: 8px 20px;
  border-radius: var(--sketch-radius-pill);
  box-shadow: 3px 3px 0px #24160e;
  transform: rotate(4deg);
  z-index: 10;
}

.hand-preview-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}

.hand-mini-card {
  background: var(--paper-bg);
  border: var(--sketch-border);
  border-radius: var(--sketch-radius);
  padding: 16px;
  transition: var(--transition);
}

.hand-mini-card:hover {
  transform: translateY(-4px) rotate(-1deg);
  background: #fef08a;
}

.hand-mini-emoji {
  font-size: 30px;
  margin-bottom: 6px;
  display: block;
}

.hand-mini-title {
  font-family: var(--font-sketch);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--ink-main);
  line-height: 1.2;
}

.hand-mini-author {
  font-family: var(--font-hand);
  font-size: 0.95rem;
  color: var(--ink-secondary);
}

/* Stats Ribbon Hand Sketch */
.hand-stats-strip {
  background: #fff;
  border-top: var(--sketch-border);
  border-bottom: var(--sketch-border);
  padding: 30px 0;
  margin: 40px 0 60px;
}

.hand-stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  text-align: center;
}

.hand-stat-val {
  font-family: var(--font-serif);
  font-size: 2.8rem;
  font-weight: 900;
  color: var(--stamp-red);
  line-height: 1.1;
}

.hand-stat-label {
  font-family: var(--font-sketch);
  font-size: 1.2rem;
  color: var(--ink-secondary);
}

/* Section Headings */
.section-padding {
  padding: 70px 0;
}

.hand-section-head {
  text-align: center;
  max-width: 780px;
  margin: 0 auto 50px;
}

.hand-tag-stamp {
  font-family: var(--font-hand);
  color: var(--stamp-red);
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 6px;
  display: block;
}

.hand-section-head h2 {
  font-family: var(--font-serif);
  font-size: 2.8rem;
  margin-bottom: 12px;
}

.hand-section-head p {
  font-size: 1.12rem;
  color: var(--ink-secondary);
}

/* 13 Handcrafted Book Cards Grid */
.books-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}

.book-card {
  background: #fff;
  border: var(--sketch-border);
  border-radius: var(--sketch-radius);
  padding: 24px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: relative;
  transition: var(--transition);
  box-shadow: 4px 4px 0px #24160e;
}

.book-card:nth-child(odd) {
  transform: rotate(-0.5deg);
}

.book-card:nth-child(even) {
  transform: rotate(0.5deg);
}

.book-card:hover {
  transform: translateY(-6px) rotate(0deg);
  box-shadow: 7px 7px 0px #24160e;
  border-color: #000;
  background: #fffdfa;
}

.book-card-badge {
  position: absolute;
  top: 16px;
  right: 16px;
  background: #ffedd5;
  border: 1.5px solid #24160e;
  color: var(--craft-brown);
  font-family: var(--font-sketch);
  font-size: 0.88rem;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: var(--sketch-radius-pill);
  transform: rotate(2deg);
}

.book-emoji-cover {
  width: 58px;
  height: 58px;
  border-radius: var(--sketch-radius);
  background: #fef08a;
  border: var(--sketch-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 30px;
  margin-bottom: 16px;
  box-shadow: 2px 2px 0px #24160e;
}

.book-card-title {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 900;
  color: var(--ink-main);
  line-height: 1.3;
  margin-bottom: 6px;
}

.book-card-author {
  font-family: var(--font-hand);
  font-size: 1.1rem;
  color: var(--ink-secondary);
  margin-bottom: 12px;
}

.book-card-desc {
  font-size: 0.94rem;
  color: var(--ink-secondary);
  line-height: 1.6;
  margin-bottom: 20px;
  flex-grow: 1;
}

.book-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1.5px dashed #24160e;
  padding-top: 14px;
  font-family: var(--font-sketch);
  font-size: 1rem;
  color: var(--ink-muted);
}

.book-card-size {
  color: var(--stamp-red);
  font-weight: 700;
}

/* Perks Grid */
.perks-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.perk-card {
  background: #fff;
  border: var(--sketch-border);
  border-radius: var(--sketch-radius-alt);
  padding: 28px;
  box-shadow: 4px 4px 0px #24160e;
  transition: var(--transition);
}

.perk-card:hover {
  transform: translateY(-5px);
  box-shadow: 7px 7px 0px #24160e;
  background: #fffef8;
}

.perk-icon-wrap {
  font-size: 34px;
  margin-bottom: 14px;
  display: block;
}

.perk-card h3 {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  margin-bottom: 10px;
}

.perk-card p {
  font-size: 0.96rem;
  color: var(--ink-secondary);
  line-height: 1.65;
}

/* Testimonials Grid */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.review-card {
  background: #fff;
  border: var(--sketch-border);
  border-radius: var(--sketch-radius);
  padding: 28px;
  box-shadow: 4px 4px 0px #24160e;
}

.review-card:nth-child(1) { transform: rotate(-1deg); }
.review-card:nth-child(2) { transform: rotate(1deg); }
.review-card:nth-child(3) { transform: rotate(-0.5deg); }

.review-stars {
  color: #ca8a04;
  font-size: 1.25rem;
  margin-bottom: 12px;
}

.review-text {
  font-family: var(--font-hand);
  font-size: 1.25rem;
  color: var(--ink-main);
  line-height: 1.6;
  margin-bottom: 18px;
}

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

.reviewer-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: #fde047;
  border: 2px solid #24160e;
  font-family: var(--font-sketch);
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
}

.reviewer-info h4 {
  font-family: var(--font-sketch);
  font-size: 1.15rem;
}

.reviewer-info span {
  font-family: var(--font-hand);
  font-size: 0.95rem;
  color: var(--ink-muted);
}

/* WhatsApp Banner Handcrafted */
.whatsapp-banner {
  background: #dcfce7;
  border: var(--sketch-border-thick);
  border-radius: var(--sketch-radius);
  padding: 40px 24px;
  text-align: center;
  margin: 50px 0;
  box-shadow: var(--sketch-shadow-lg);
  transform: rotate(-0.5deg);
}

.whatsapp-banner h3 {
  font-family: var(--font-serif);
  font-size: 2.2rem;
  margin-bottom: 10px;
}

.whatsapp-banner p {
  font-size: 1.1rem;
  color: var(--ink-secondary);
  max-width: 620px;
  margin: 0 auto 24px;
}

/* FAQ Accordion */
.faq-wrap {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  background: #fff;
  border: var(--sketch-border);
  border-radius: var(--sketch-radius-pill);
  margin-bottom: 14px;
  overflow: hidden;
  box-shadow: 3px 3px 0px #24160e;
  transition: var(--transition);
}

.faq-item.active {
  box-shadow: 5px 5px 0px #24160e;
  background: #fffdf5;
}

.faq-question {
  padding: 18px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  font-family: var(--font-sketch);
  font-size: 1.25rem;
  font-weight: 700;
  user-select: none;
}

.faq-arrow {
  transition: transform 0.3s ease;
  font-size: 1.1rem;
}

.faq-item.active .faq-arrow {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.35s ease;
  padding: 0 24px;
  color: var(--ink-secondary);
  font-size: 1rem;
  line-height: 1.65;
}

.faq-item.active .faq-answer {
  max-height: 250px;
  padding: 0 24px 20px;
}

/* Sticky Action Bar */
.sticky-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: #fff;
  border-top: var(--sketch-border-thick);
  padding: 12px 20px;
  z-index: 95;
  box-shadow: 0 -4px 10px rgba(0,0,0,0.1);
  transform: translateY(100%);
  transition: transform 0.3s ease;
}

.sticky-bar.visible {
  transform: translateY(0);
}

.sticky-bar-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1200px;
  margin: 0 auto;
  gap: 16px;
}

.sticky-pricing {
  display: flex;
  align-items: center;
  gap: 14px;
}

.sticky-deal {
  font-family: var(--font-serif);
  font-size: 1.8rem;
  font-weight: 900;
}

.sticky-deal span {
  color: var(--stamp-red);
}

.sticky-orig {
  font-family: var(--font-sketch);
  font-size: 1.2rem;
  text-decoration: line-through;
  color: var(--ink-muted);
}

.sticky-buttons {
  display: flex;
  gap: 10px;
}

/* Floating WhatsApp Quick Button */
.floating-wa-btn {
  position: fixed;
  bottom: 80px;
  right: 24px;
  width: 62px;
  height: 62px;
  border-radius: 50%;
  background: #22c55e;
  color: #fff;
  border: var(--sketch-border-thick);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 32px;
  box-shadow: var(--sketch-shadow);
  z-index: 99;
  text-decoration: none;
  transition: var(--transition);
}

.floating-wa-btn:hover {
  transform: scale(1.12) rotate(8deg);
  box-shadow: 6px 6px 0px #24160e;
}

.wa-tooltip {
  position: absolute;
  right: 74px;
  background: #fff;
  color: var(--ink-main);
  border: var(--sketch-border);
  padding: 6px 14px;
  border-radius: var(--sketch-radius-pill);
  font-family: var(--font-sketch);
  font-size: 1rem;
  font-weight: 700;
  white-space: nowrap;
  box-shadow: 3px 3px 0px #24160e;
  pointer-events: none;
  opacity: 0;
  transform: translateX(10px);
  transition: var(--transition);
}

.floating-wa-btn:hover .wa-tooltip {
  opacity: 1;
  transform: translateX(0);
}

/* Post-Payment Modal */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(36, 22, 14, 0.75);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 20px;
}

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

.modal-content {
  background: #fff;
  border: var(--sketch-border-thick);
  border-radius: var(--sketch-radius);
  max-width: 680px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  padding: 34px;
  position: relative;
  box-shadow: 10px 10px 0px #24160e;
}

.modal-close {
  position: absolute;
  top: 18px;
  right: 18px;
  background: #fee2e2;
  border: var(--sketch-border);
  color: var(--ink-main);
  width: 38px;
  height: 38px;
  border-radius: 50%;
  font-size: 20px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 2px 2px 0px #24160e;
  transition: var(--transition);
}

.modal-close:hover {
  background: var(--stamp-red);
  color: #fff;
  transform: rotate(90deg);
}

.success-icon-badge {
  width: 76px;
  height: 76px;
  background: #fde047;
  border: var(--sketch-border);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 38px;
  margin: 0 auto 16px;
  box-shadow: 4px 4px 0px #24160e;
  transform: rotate(-3deg);
}

.auto-dl-alert {
  background: #dcfce7;
  border: var(--sketch-border);
  padding: 12px 16px;
  border-radius: var(--sketch-radius-pill);
  color: #166534;
  font-family: var(--font-sketch);
  font-size: 1.1rem;
  margin: 18px 0;
  display: flex;
  align-items: center;
  gap: 10px;
  box-shadow: 2px 2px 0px #24160e;
}

.books-download-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin: 20px 0;
  max-height: 280px;
  overflow-y: auto;
  padding-right: 6px;
}

.download-item {
  background: var(--paper-bg);
  border: var(--sketch-border);
  border-radius: var(--sketch-radius);
  padding: 12px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  box-shadow: 2px 2px 0px #24160e;
}

.download-item-title {
  font-family: var(--font-sketch);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--ink-main);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 360px;
}

.download-item-size {
  font-family: var(--font-hand);
  font-size: 0.95rem;
  color: var(--ink-secondary);
}

.btn-sm-download {
  background: #facc15;
  color: var(--ink-main);
  border: 2px solid #24160e;
  font-family: var(--font-sketch);
  font-size: 0.95rem;
  font-weight: 700;
  padding: 6px 14px;
  border-radius: var(--sketch-radius-pill);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  box-shadow: 2px 2px 0px #24160e;
  transition: var(--transition);
  white-space: nowrap;
}

.btn-sm-download:hover {
  background: #fde047;
  transform: translate(-2px, -2px);
  box-shadow: 4px 4px 0px #24160e;
}

/* Footer */
footer {
  background: #fff;
  border-top: var(--sketch-border-thick);
  padding: 50px 0 100px;
  text-align: center;
  color: var(--ink-secondary);
}

.footer-logo {
  font-family: var(--font-serif);
  font-size: 1.6rem;
  font-weight: 900;
  margin-bottom: 8px;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin: 18px 0;
  flex-wrap: wrap;
}

.footer-links a {
  color: var(--ink-main);
  font-family: var(--font-sketch);
  font-size: 1.1rem;
  font-weight: 700;
  text-decoration: underline;
}

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

/* ==========================================================================
   ADVANCED MOBILE RESPONSIVENESS & TOUCH TUNING
   ========================================================================== */

/* Tablet & Mobile (<= 960px) */
@media (max-width: 960px) {
  .hero-grid {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 36px;
  }
  .hero h1 {
    font-size: 2.5rem;
    line-height: 1.15;
  }
  .hero-desc {
    margin-left: auto;
    margin-right: auto;
    font-size: 1.05rem;
  }
  .price-row, .hand-guarantee-list, .hand-timer-strip {
    justify-content: center;
  }
  .hand-stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }
  .perks-grid, .testimonials-grid {
    grid-template-columns: 1fr;
  }
  .sticky-bar-content {
    flex-direction: column;
    gap: 8px;
  }
  .sticky-buttons {
    width: 100%;
  }
  .sticky-buttons .btn {
    flex: 1;
    font-size: 0.95rem;
    padding: 10px;
  }
  .books-grid {
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  }
  .floating-wa-btn {
    bottom: 85px; /* Stay clear of sticky bottom bar */
    right: 18px;
    width: 54px;
    height: 54px;
  }
}

/* Smartphone & Mobile Screens (<= 640px) */
@media (max-width: 640px) {
  .container {
    padding: 0 16px;
  }

  /* Top Bar */
  .top-bar {
    padding: 8px 12px;
    font-size: 0.82rem;
  }
  .top-bar-content {
    gap: 8px;
  }
  .hand-stamp-chip {
    font-size: 0.75rem;
    padding: 2px 8px;
  }

  /* Header */
  .site-header {
    padding: 10px 0;
  }
  .nav-wrap {
    flex-direction: column;
    gap: 10px;
    align-items: center;
  }
  .brand-logo {
    justify-content: center;
  }
  .brand-title {
    font-size: 1.35rem;
  }
  .header-actions {
    width: 100%;
    display: flex;
    justify-content: center;
    gap: 8px;
  }
  .header-actions .btn {
    flex: 1;
    font-size: 0.88rem;
    padding: 8px 10px;
    justify-content: center;
    text-align: center;
  }

  /* Hero Section */
  .hero {
    padding: 24px 0 36px;
  }
  .hero h1 {
    font-size: 2.1rem;
    line-height: 1.18;
  }
  .hero-deal-badge {
    font-size: 0.9rem;
    padding: 4px 14px;
  }
  .hero-price-card {
    padding: 16px;
    margin: 18px 0;
  }
  .price-current {
    font-size: 2.8rem;
  }
  .price-original {
    font-size: 1.3rem;
  }
  .hero-cta-group {
    flex-direction: column;
    gap: 12px;
  }
  .hero-cta-group .btn {
    width: 100%;
    font-size: 1.05rem;
    padding: 14px 18px;
    min-height: 52px;
    justify-content: center;
  }

  .hand-guarantee-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
    text-align: center;
  }
  .hand-guarantee-list span {
    font-size: 0.85rem;
    padding: 6px 8px;
    background: #fffdf9;
    border: 1.5px solid #24160e;
    border-radius: 8px;
  }

  .hero-visual {
    margin-top: 10px;
  }
  .polaroid-frame {
    padding: 10px 10px 16px 10px;
  }
  .polaroid-img {
    max-height: 380px;
  }
  .polaroid-caption {
    font-size: 1.05rem;
    margin-top: 8px;
  }

  /* Stats Section */
  .hand-stats-strip {
    padding: 18px 0;
  }
  .hand-stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }
  .hand-stat-val {
    font-size: 2rem;
  }
  .hand-stat-label {
    font-size: 0.85rem;
  }

  /* Section Headings */
  .section-title {
    font-size: 1.85rem;
  }
  .section-subtitle {
    font-size: 1.1rem;
  }
  .section-padding {
    padding: 40px 0;
  }

  /* 13 Books Grid */
  .books-grid {
    grid-template-columns: 1fr;
    gap: 18px;
  }
  .book-card {
    padding: 20px 16px;
  }
  .book-card-title {
    font-size: 1.25rem;
  }
  .book-card-desc {
    font-size: 0.95rem;
  }

  /* Pricing Section */
  .pricing-card {
    padding: 26px 16px;
  }
  .pricing-amount {
    font-size: 3.2rem;
  }
  .pricing-features {
    font-size: 1rem;
  }

  /* Sticky Action Bar on Mobile */
  .sticky-action-bar {
    padding: 8px 12px;
    bottom: 0;
  }
  .sticky-timer-label {
    font-size: 0.78rem;
  }
  .sticky-timer-val {
    font-size: 1rem;
  }
  .sticky-buttons {
    flex-direction: row;
    gap: 8px;
  }
  .sticky-buttons .btn {
    font-size: 0.92rem;
    padding: 10px 8px;
    white-space: normal;
    text-align: center;
  }

  /* Floating WhatsApp Button */
  .floating-wa-btn {
    bottom: 78px;
    right: 14px;
    width: 50px;
    height: 50px;
    font-size: 1.5rem;
  }
  .wa-tooltip {
    display: none; /* Hide hover tooltip on touch devices */
  }

  /* Download Success Modal */
  .modal-content {
    padding: 20px 16px;
    max-height: 90vh;
    border-width: 2.5px;
    width: 95vw;
  }
  .modal-content h2 {
    font-size: 1.6rem;
  }
  .download-item {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
    padding: 12px;
  }
  .download-item-title {
    max-width: 100%;
    font-size: 1.05rem;
  }
  .download-item > div:last-child {
    width: 100%;
    display: flex;
    justify-content: flex-end;
  }
  .download-item .btn-sm-download {
    padding: 6px 14px;
    font-size: 0.9rem;
  }
}

/* Small Screens & Foldables (<= 380px) */
@media (max-width: 380px) {
  .hero h1 {
    font-size: 1.85rem;
  }
  .price-current {
    font-size: 2.4rem;
  }
  .brand-title {
    font-size: 1.2rem;
  }
  .header-actions .btn {
    font-size: 0.8rem;
    padding: 6px 8px;
  }
  .sticky-buttons .btn {
    font-size: 0.85rem;
    padding: 8px 4px;
  }
}