/* ================================================================
   why-invest.css — Aqua Laundry · WHY INVEST PAGE
   ================================================================
   ⚠️  ต้องโหลด main.css ก่อนไฟล์นี้เสมอ
   โค้ดที่ซ้ำกันทุกหน้า (hero, breadcrumb, :root tokens,
   utilities, keyframes, shared components) ถูกย้ายไปรวมที่
   main.css และ shared-redesign.css แล้ว
   ================================================================ */

/* :root vars → moved to main.css */

/* ============================================
   SHARED SECTION STYLES
   ============================================ */

.wi-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  background: rgba(0,180,216,0.1);
  color: var(--aqua-secondary);
  border: 1px solid rgba(0,180,216,0.22);
  border-radius: 50px;
  padding: 7px 18px;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  margin-bottom: 18px;
}

.wi-eyebrow i { font-size: 11px; }

.wi-eyebrow-light {
  background: rgba(255,255,255,0.12);
  color: rgba(255,255,255,0.9);
  border-color: rgba(255,255,255,0.2);
}

.wi-section-header {
  text-align: center;
  margin-bottom: 56px;
}

.wi-section-title {
  font-family: 'Kanit', sans-serif;
  font-size: 40px;
  font-weight: 800;
  color: var(--aqua-dark);
  line-height: 1.2;
  margin: 0;
}

.wi-section-title span {
  background: var(--aqua-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.wi-section-title-light { color: rgba(255,255,255,0.95); }
.wi-title-accent {
  background: linear-gradient(135deg, #90E0EF 0%, #CAF0F8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ============================================
   INTRO SECTION
   ============================================ */

.wi-intro {
  position: relative;
  padding: 90px 0;
  background: #f0f9ff;
  overflow: hidden;
}

.wi-intro-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}

.wi-intro-circle {
  position: absolute;
  border-radius: 50%;
  opacity: 0.12;
}

.wi-intro-circle-1 {
  width: 600px; height: 600px;
  background: var(--aqua-primary);
  top: -200px; right: -150px;
  animation: introCircle 14s ease-in-out infinite;
}

.wi-intro-circle-2 {
  width: 400px; height: 400px;
  background: var(--aqua-dark);
  bottom: -150px; left: -100px;
  animation: introCircle 18s ease-in-out infinite reverse;
}

@keyframes introCircle {
  0%, 100% { transform: scale(1) translate(0, 0); }
  50% { transform: scale(1.08) translate(20px, -15px); }
}

.wi-intro-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.wi-intro-text {}

.wi-intro-title {
  font-family: 'Kanit', sans-serif;
  font-size: 42px;
  font-weight: 800;
  color: var(--aqua-dark);
  line-height: 1.2;
  margin-bottom: 20px;
}

.wi-intro-title span {
  background: var(--aqua-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.wi-intro-desc {
  font-size: 15px;
  color: #475569;
  line-height: 1.85;
  margin-bottom: 16px;
}

.wi-intro-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-top: 12px;
  padding: 14px 32px;
  background: var(--aqua-gradient);
  color: white;
  border-radius: 12px;
  font-size: 15px;
  font-weight: 700;
  text-decoration: none;
  transition: all 0.3s ease;
  box-shadow: 0 4px 16px rgba(0,180,216,0.3);
}

.wi-intro-btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(0,180,216,0.4);
  color: white;
}

.wi-intro-btn i { transition: transform 0.3s; }
.wi-intro-btn:hover i { transform: translateX(4px); }

/* Stats grid */
.wi-intro-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.wi-stat-card {
  background: white;
  border-radius: 18px;
  padding: 28px 20px;
  text-align: center;
  border: 1.5px solid transparent;
  box-shadow: 0 2px 16px rgba(0,119,182,0.08);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.wi-stat-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--aqua-gradient);
  opacity: 0;
  transition: opacity 0.3s;
  z-index: 0;
}

.wi-stat-card:hover::before { opacity: 1; }
.wi-stat-card:hover { transform: translateY(-6px); box-shadow: 0 12px 32px rgba(0,119,182,0.18); }
.wi-stat-card:hover .wi-stat-icon,
.wi-stat-card:hover .wi-stat-num,
.wi-stat-card:hover .wi-stat-unit,
.wi-stat-card:hover .wi-stat-lbl { color: white !important; -webkit-text-fill-color: white; }

.wi-stat-card > * { position: relative; z-index: 1; }

.wi-stat-icon {
  font-size: 28px;
  color: var(--aqua-primary);
  margin-bottom: 12px;
  transition: color 0.3s;
}

.wi-stat-num {
  font-family: 'Kanit', sans-serif;
  font-size: 36px;
  font-weight: 800;
  background: var(--aqua-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  transition: all 0.3s;
}

.wi-stat-unit {
  font-family: 'Kanit', sans-serif;
  font-size: 18px;
  font-weight: 700;
  color: var(--aqua-secondary);
  transition: color 0.3s;
}

.wi-stat-lbl {
  font-size: 13px;
  color: #64748b;
  margin-top: 6px;
  font-weight: 500;
  transition: color 0.3s;
}

/* ============================================
   REASONS SECTION
   ============================================ */

.wi-reasons {
  padding: 90px 0;
  background: white;
}

.wi-reasons-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.wi-reason-card {
  background: #f8fafc;
  border: 1.5px solid #e2e8f0;
  border-radius: 20px;
  padding: 32px 28px;
  position: relative;
  overflow: hidden;
  transition: all 0.4s ease;
  opacity: 0;
  transform: translateY(24px);
}

.wi-reason-card.wi-visible {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.5s ease var(--delay), transform 0.5s ease var(--delay),
              background 0.3s, border-color 0.3s, box-shadow 0.3s;
}

.wi-reason-card:hover {
  background: white;
  border-color: rgba(0,180,216,0.3);
  box-shadow: 0 12px 40px rgba(0,119,182,0.12);
  transform: translateY(-6px);
}

.wi-reason-num {
  position: absolute;
  top: 18px;
  right: 20px;
  font-family: 'Kanit', sans-serif;
  font-size: 52px;
  font-weight: 900;
  color: rgba(0,180,216,0.07);
  line-height: 1;
  user-select: none;
  transition: color 0.3s;
}

.wi-reason-card:hover .wi-reason-num { color: rgba(0,180,216,0.12); }

.wi-reason-icon {
  width: 56px; height: 56px;
  background: linear-gradient(135deg, rgba(0,180,216,0.12), rgba(0,119,182,0.08));
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  color: var(--aqua-primary);
  margin-bottom: 18px;
  transition: all 0.3s;
}

.wi-reason-card:hover .wi-reason-icon {
  background: var(--aqua-gradient);
  color: white;
  box-shadow: 0 4px 16px rgba(0,180,216,0.3);
}

.wi-reason-title {
  font-family: 'Kanit', sans-serif;
  font-size: 20px;
  font-weight: 700;
  color: var(--aqua-dark);
  margin-bottom: 12px;
}

.wi-reason-desc {
  font-size: 14px;
  color: #64748b;
  line-height: 1.75;
  margin: 0;
}

/* ============================================
   ROI SECTION
   ============================================ */

.wi-roi {
  position: relative;
  padding: 90px 0;
  background: linear-gradient(120deg, #023E8A 0%, #0077B6 60%, #0096C7 100%);
  overflow: hidden;
}

.wi-roi-bg-pattern {
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(
    -55deg, transparent, transparent 18px,
    rgba(255,255,255,0.025) 18px, rgba(255,255,255,0.025) 19px
  );
  pointer-events: none;
}

.wi-roi-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: 24px;
}

.wi-roi-card {
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 20px;
  padding: 28px 22px;
  backdrop-filter: blur(8px);
  transition: all 0.3s ease;
  position: relative;
}

.wi-roi-card:hover {
  background: rgba(255,255,255,0.14);
  transform: translateY(-6px);
  box-shadow: 0 16px 40px rgba(0,0,0,0.2);
}

.wi-roi-card-featured {
  background: rgba(255,255,255,0.15);
  border-color: rgba(144,224,239,0.5);
  box-shadow: 0 4px 24px rgba(0,0,0,0.15);
}

.wi-roi-card-featured:hover {
  background: rgba(255,255,255,0.2);
}

.wi-roi-star {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, #f59e0b, #d97706);
  color: white;
  font-size: 11px;
  font-weight: 800;
  padding: 5px 14px;
  border-radius: 50px;
  display: flex;
  align-items: center;
  gap: 5px;
  white-space: nowrap;
  box-shadow: 0 2px 8px rgba(245,158,11,0.4);
}

.wi-roi-tier {
  font-family: 'Kanit', sans-serif;
  font-size: 28px;
  font-weight: 800;
  color: white;
  margin-bottom: 6px;
}

.wi-roi-invest {
  font-size: 13px;
  color: rgba(255,255,255,0.6);
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid rgba(255,255,255,0.12);
}

.wi-roi-invest strong { color: rgba(255,255,255,0.9); }

.wi-roi-items { margin-bottom: 20px; }

.wi-roi-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 9px 0;
  border-bottom: 1px solid rgba(255,255,255,0.07);
  gap: 8px;
}

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

.wi-roi-lbl {
  font-size: 12.5px;
  color: rgba(255,255,255,0.6);
  flex-shrink: 0;
}

.wi-roi-val {
  font-size: 13px;
  font-weight: 700;
  color: rgba(255,255,255,0.85);
  text-align: right;
}

.wi-roi-item-profit { padding: 12px 0 0; border-bottom: none; }

.wi-roi-profit {
  font-family: 'Kanit', sans-serif;
  font-size: 16px;
  color: #90E0EF;
}

.wi-roi-return {
  background: rgba(255,255,255,0.1);
  border-radius: 10px;
  padding: 10px 14px;
  font-size: 13px;
  color: rgba(255,255,255,0.75);
  text-align: center;
}

.wi-roi-return strong { color: #90E0EF; }

.wi-roi-note {
  text-align: center;
  font-size: 12.5px;
  color: rgba(255,255,255,0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
}

/* ============================================
   STEPS SECTION
   ============================================ */

.wi-steps {
  padding: 90px 0;
  background: #f8fafc;
}

.wi-steps-wrap {
  max-width: 720px;
  margin: 0 auto;
  position: relative;
}

.wi-steps-line {
  position: absolute;
  left: 27px;
  top: 28px;
  bottom: 28px;
  width: 2px;
  background: linear-gradient(180deg, var(--aqua-primary) 0%, var(--aqua-dark) 100%);
  opacity: 0.2;
  z-index: 0;
}

.wi-step {
  display: flex;
  gap: 24px;
  align-items: flex-start;
  margin-bottom: 40px;
  position: relative;
  z-index: 1;
}

.wi-step:last-child { margin-bottom: 0; }

.wi-step-circle {
  width: 56px;
  height: 56px;
  flex-shrink: 0;
  background: var(--aqua-gradient);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Kanit', sans-serif;
  font-size: 20px;
  font-weight: 800;
  color: white;
  position: relative;
  box-shadow: 0 4px 16px rgba(0,180,216,0.35);
}

.wi-step-circle-last {
  background: linear-gradient(135deg, #10b981, #059669);
  box-shadow: 0 4px 16px rgba(16,185,129,0.35);
  font-size: 16px;
}

.wi-step-ring {
  position: absolute;
  inset: -5px;
  border-radius: 50%;
  border: 2px solid rgba(0,180,216,0.25);
  animation: stepRingPulse 2.5s ease-in-out infinite;
}

@keyframes stepRingPulse {
  0%, 100% { transform: scale(1); opacity: 0.5; }
  50% { transform: scale(1.12); opacity: 0.15; }
}

.wi-step-body {
  background: white;
  border: 1.5px solid #e2e8f0;
  border-radius: 16px;
  padding: 22px 24px;
  flex: 1;
  transition: all 0.3s;
}

.wi-step:hover .wi-step-body {
  border-color: rgba(0,180,216,0.3);
  box-shadow: 0 8px 24px rgba(0,119,182,0.1);
  transform: translateX(4px);
}

.wi-step-body h4 {
  font-family: 'Kanit', sans-serif;
  font-size: 18px;
  font-weight: 700;
  color: var(--aqua-dark);
  margin-bottom: 8px;
}

.wi-step-body p {
  font-size: 14px;
  color: #64748b;
  line-height: 1.7;
  margin: 0;
}



/* ============================================
   CTA SECTION
   ============================================ */

.wi-cta {
  position: relative;
  background: linear-gradient(120deg, #023E8A 0%, #0077B6 55%, #0096C7 100%);
  padding: 90px 0;
  text-align: center;
  overflow: hidden;
}

.wi-cta-particles {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.wi-cta-particles span {
  position: absolute;
  border-radius: 50%;
  background: rgba(144,224,239,0.15);
  animation: ctaParticle 10s ease-in-out infinite;
}

.wi-cta-particles span:nth-child(1) { width:80px; height:80px; top:10%; left:5%; animation-delay:0s; }
.wi-cta-particles span:nth-child(2) { width:40px; height:40px; top:60%; left:12%; animation-delay:2s; }
.wi-cta-particles span:nth-child(3) { width:60px; height:60px; top:20%; right:8%; animation-delay:4s; }
.wi-cta-particles span:nth-child(4) { width:25px; height:25px; bottom:15%; right:6%; animation-delay:1.5s; }
.wi-cta-particles span:nth-child(5) { width:100px; height:100px; top:50%; left:45%; animation-delay:3s; opacity:0.08; }

@keyframes ctaParticle {
  0%, 100% { transform: translateY(0) scale(1); opacity: 0.15; }
  50% { transform: translateY(-25px) scale(1.1); opacity: 0.35; }
}

.wi-cta-inner { position: relative; z-index: 1; }

.wi-cta-icon-wrap {
  width: 80px; height: 80px;
  margin: 0 auto 28px;
  background: rgba(255,255,255,0.12);
  border: 2px solid rgba(255,255,255,0.2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 30px;
  color: white;
  backdrop-filter: blur(8px);
  animation: ctaIconBounce 3.5s ease-in-out infinite;
}

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

.wi-cta-title {
  font-family: 'Kanit', sans-serif;
  font-size: 40px;
  font-weight: 800;
  color: white;
  line-height: 1.25;
  margin-bottom: 16px;
}

.wi-cta-desc {
  font-size: 16px;
  color: rgba(255,255,255,0.75);
  margin-bottom: 40px;
  max-width: 480px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.7;
}

.wi-cta-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.wi-cta-primary {
  padding: 16px 40px;
  background: white;
  color: var(--aqua-secondary);
  border-radius: 14px;
  font-size: 16px;
  font-weight: 800;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  transition: all 0.3s ease;
  box-shadow: 0 4px 20px rgba(0,0,0,0.15);
}

.wi-cta-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 30px rgba(0,0,0,0.2);
  color: var(--aqua-primary);
}

.wi-cta-outline {
  padding: 16px 40px;
  background: transparent;
  color: white;
  border: 2px solid rgba(255,255,255,0.4);
  border-radius: 14px;
  font-size: 16px;
  font-weight: 700;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  transition: all 0.3s ease;
}

.wi-cta-outline:hover {
  border-color: white;
  background: rgba(255,255,255,0.12);
  color: white;
  transform: translateY(-3px);
}

/* ============================================
   RESPONSIVE
   ============================================ */

/* --- Tablet landscape --- */
@media (max-width: 1199px) {
  .wi-roi-grid { grid-template-columns: repeat(2, 1fr); }
  .wi-intro-grid { gap: 40px; }
  .wi-intro-title { font-size: 36px; }
  .wi-section-title { font-size: 34px; }
}

/* --- Tablet portrait --- */
@media (max-width: 992px) {
  /* Intro: stack text over stats */
  .wi-intro-grid { grid-template-columns: 1fr; gap: 36px; }
  .wi-intro-title { font-size: 32px; }
  .wi-intro-stats { grid-template-columns: repeat(4, 1fr); gap: 12px; }

  /* Reasons: 2 columns */
  .wi-reasons-grid { grid-template-columns: repeat(2, 1fr); }

  /* Section title */
  .wi-section-title { font-size: 30px; }

  /* Steps: keep horizontal layout, just tighten spacing */
  .wi-steps-wrap { max-width: 100%; }
  .wi-steps-line { left: 27px; }
  .wi-step-body { padding: 18px 20px; }
}

/* --- Mobile --- */
@media (max-width: 768px) {
  /* Section headers */
  .wi-section-header { margin-bottom: 30px; }
  .wi-section-title { font-size: 26px; }
  .wi-eyebrow { font-size: 11px; padding: 6px 14px; }

  /* === INTRO === */
  .wi-intro { padding: 52px 0; }
  .wi-intro-title { font-size: 26px; }
  .wi-intro-desc { font-size: 14px; }
  .wi-intro-btn { padding: 12px 24px; font-size: 14px; }

  /* Stats: 2x2 grid on mobile */
  .wi-intro-stats {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }
  .wi-stat-card { padding: 20px 14px; border-radius: 14px; }
  .wi-stat-icon { font-size: 22px; margin-bottom: 8px; }
  .wi-stat-num { font-size: 26px; }
  .wi-stat-unit { font-size: 15px; }
  .wi-stat-lbl { font-size: 12px; margin-top: 4px; }

  /* === REASONS === */
  .wi-reasons { padding: 52px 0; }
  .wi-reasons-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }
  /* Cards visible by default on mobile — ไม่ต้องรอ JS trigger */
  .wi-reason-card {
    opacity: 1;
    transform: none;
    padding: 22px 20px;
    border-radius: 16px;
  }
  .wi-reason-card.wi-visible {
    transition: background 0.3s, border-color 0.3s, box-shadow 0.3s, transform 0.3s;
  }
  .wi-reason-num { font-size: 40px; top: 14px; right: 16px; }
  .wi-reason-icon { width: 48px; height: 48px; font-size: 18px; margin-bottom: 14px; }
  .wi-reason-title { font-size: 17px; }
  .wi-reason-desc { font-size: 13.5px; }

  /* === ROI === */
  .wi-roi { padding: 52px 0; }
  .wi-roi-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .wi-roi-card { padding: 22px 18px; }
  .wi-roi-tier { font-size: 24px; }
  .wi-roi-lbl { font-size: 12px; }
  .wi-roi-val { font-size: 12.5px; }
  .wi-roi-profit { font-size: 15px; }

  /* === STEPS === */
  .wi-steps { padding: 52px 0; }
  /* บน mobile คง flex-row แต่ปรับขนาดให้พอดี */
  .wi-steps-wrap { max-width: 100%; }
  .wi-steps-line { display: none; }
  .wi-step {
    display: flex;
    flex-direction: row;       /* ยังเป็นแนวนอน circle + card */
    gap: 16px;
    align-items: flex-start;
    margin-bottom: 16px;
  }
  .wi-step-circle {
    width: 44px;
    height: 44px;
    min-width: 44px;           /* ห้ามถูก flex compress */
    font-size: 16px;
    flex-shrink: 0;
  }
  .wi-step-ring { display: none; } /* ซ่อน ring animation บน mobile */
  .wi-step-body {
    padding: 14px 16px;
    border-radius: 14px;
    flex: 1;
    min-width: 0;              /* ห้าม overflow */
  }
  .wi-step-body h4 { font-size: 15px; margin-bottom: 6px; }
  .wi-step-body p  { font-size: 13px; line-height: 1.6; }

  /* === CTA === */
  .wi-cta { padding: 60px 0; }
  .wi-cta-icon-wrap { width: 64px; height: 64px; font-size: 24px; margin-bottom: 20px; }
  .wi-cta-title { font-size: 26px; }
  .wi-cta-desc { font-size: 14px; margin-bottom: 28px; }
  .wi-cta-actions {
    flex-direction: column;
    align-items: stretch;
    gap: 12px;
    max-width: 320px;
    margin: 0 auto;
  }
  .wi-cta-primary,
  .wi-cta-outline {
    width: 100%;
    justify-content: center;
    padding: 14px 20px;
    font-size: 15px;
    border-radius: 12px;
  }
}

/* --- Small mobile --- */
@media (max-width: 400px) {
  .wi-intro-title { font-size: 22px; }
  .wi-section-title { font-size: 22px; }
  .wi-stat-card { padding: 16px 10px; }
  .wi-stat-num { font-size: 22px; }
  .wi-roi-item { flex-direction: column; align-items: flex-start; gap: 2px; }
  .wi-roi-val { text-align: left; }
  .wi-step-circle { width: 38px; height: 38px; min-width: 38px; font-size: 14px; }
}