/* =========================================================
   Aquabottle Việt Nam – About Us (Về Chúng Tôi) Page Styles
   Đồng bộ phong cách thiết kế sang trọng & hiện đại của gg site
   ========================================================= */

.about-page {
  background-color: #f5f0e6;
  min-height: 100vh;
  color: var(--text);
}

/* =========================================
   1. HERO SECTION
   ========================================= */
.about-hero {
  background:
    linear-gradient(
      135deg,
      rgba(14, 41, 32, 0.94) 0%,
      rgba(22, 62, 49, 0.88) 100%
    ),
    url("images/banner2.jpg") center/cover no-repeat;
  color: var(--white);
  padding: 68px 0 60px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.about-hero::before {
  content: "";
  position: absolute;
  top: -50%;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 400px;
  background: radial-gradient(circle, rgba(255, 100, 51, 0.22) 0%, transparent 70%);
  pointer-events: none;
}

.about-hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 20px;
  background: rgba(255, 100, 51, 0.2);
  border: 1px solid rgba(255, 100, 51, 0.5);
  color: #ff9d76;
  border-radius: var(--radius-pill);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 20px;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.about-hero h1 {
  font-size: clamp(28px, 5vw, 46px);
  font-weight: 800;
  line-height: 1.25;
  color: #ffffff;
  margin-bottom: 18px;
  letter-spacing: -0.02em;
}

.about-hero h1 span {
  color: var(--cta);
  text-shadow: 0 4px 20px rgba(255, 100, 51, 0.4);
}

.about-hero p {
  max-width: 720px;
  margin: 0 auto 36px;
  font-size: 16.5px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.9);
}

/* 4 Thống kê ấn tượng */
.about-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  max-width: 980px;
  margin: 0 auto;
}

@media (min-width: 768px) {
  .about-stats {
    grid-template-columns: repeat(4, 1fr);
  }
}

.about-stat-card {
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.18);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-radius: 18px;
  padding: 24px 16px;
  text-align: center;
  transition: all 0.3s ease;
}

.about-stat-card:hover {
  background: rgba(255, 255, 255, 0.18);
  transform: translateY(-4px);
  border-color: rgba(255, 100, 51, 0.5);
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.15);
}

.about-stat-num {
  font-size: clamp(26px, 3.5vw, 34px);
  font-weight: 800;
  color: var(--cta);
  display: block;
  margin-bottom: 6px;
  line-height: 1.1;
  letter-spacing: -0.01em;
}

.about-stat-label {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.88);
  line-height: 1.45;
  font-weight: 500;
}

/* =========================================
   2. COMMON SECTION & GRID
   ========================================= */
.about-section {
  padding: 68px 0;
}

.about-section--tint {
  background: #edf4f0;
}

.about-story-grid {
  display: grid;
  gap: 40px;
  align-items: center;
}

@media (min-width: 880px) {
  .about-story-grid {
    grid-template-columns: 1.05fr 1fr;
    gap: 56px;
  }
  .about-story-grid--reverse .about-story-media {
    order: 2;
  }
  .about-story-grid--reverse .about-story-content {
    order: 1;
  }
}

.about-story-media {
  position: relative;
  border-radius: 22px;
  overflow: hidden;
  box-shadow: 0 18px 46px rgba(14, 41, 32, 0.12);
  background: var(--white);
  border: 1px solid rgba(14, 41, 32, 0.08);
}

.about-story-img {
  width: 100%;
  height: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  display: block;
  transition: transform 0.5s ease;
}

.about-story-media:hover .about-story-img {
  transform: scale(1.03);
}

.about-story-media__badge {
  position: absolute;
  bottom: 18px;
  left: 18px;
  background: rgba(14, 41, 32, 0.88);
  color: #ffffff;
  padding: 8px 16px;
  border-radius: 999px;
  font-size: 12.5px;
  font-weight: 700;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
}

.about-story-content h2 {
  font-size: clamp(24px, 4vw, 34px);
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 18px;
  line-height: 1.3;
  letter-spacing: -0.015em;
}

.about-story-content p {
  font-size: 16px;
  color: var(--muted);
  line-height: 1.75;
  margin-bottom: 16px;
}

.about-highlight-box {
  background: #e6f3ec;
  border-left: 4px solid var(--primary);
  border-radius: 0 14px 14px 0;
  padding: 18px 22px;
  font-size: 15.5px;
  color: var(--primary);
  font-weight: 600;
  font-style: italic;
  margin: 24px 0;
  line-height: 1.65;
  box-shadow: 0 4px 16px rgba(14, 41, 32, 0.04);
}

.about-checklist {
  list-style: none;
  padding: 0;
  margin: 0 0 28px 0;
}

.about-checklist li {
  position: relative;
  padding-left: 32px;
  margin-bottom: 14px;
  line-height: 1.6;
  font-size: 15.5px;
  color: var(--text);
  font-weight: 500;
}

.about-checklist li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 1px;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: #d8f1e5;
  color: #0f766e;
  font-weight: 800;
  font-size: 13px;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* =========================================
   3. QUALITY PILLARS SECTION
   ========================================= */
.pillars-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
  margin-top: 40px;
}

@media (min-width: 640px) {
  .pillars-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .pillars-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.pillar-card {
  background: var(--white);
  border: 1.5px solid var(--border);
  border-radius: 20px;
  padding: 30px 24px;
  box-shadow: 0 6px 20px rgba(14, 41, 32, 0.05);
  transition: all 0.3s ease;
  display: flex;
  flex-direction: column;
}

.pillar-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 36px rgba(14, 41, 32, 0.1);
  border-color: #a7cfbe;
}

.pillar-icon-box {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  background: #edf6f2;
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
  margin-bottom: 18px;
}

.pillar-title {
  font-size: 18px;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 10px;
  line-height: 1.35;
}

.pillar-desc {
  font-size: 14.5px;
  color: var(--muted);
  line-height: 1.65;
}

/* =========================================
   4. B2B & CORPORATE GIFT SECTION
   ========================================= */
.b2b-card {
  background: linear-gradient(135deg, #13362a 0%, #0e2920 100%);
  color: var(--white);
  border-radius: 26px;
  padding: 48px 30px;
  text-align: center;
  box-shadow: 0 18px 48px rgba(14, 41, 32, 0.22);
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.12);
}

@media (min-width: 768px) {
  .b2b-card {
    padding: 60px 54px;
  }
}

.b2b-card::before {
  content: "";
  position: absolute;
  top: -60px;
  right: -60px;
  width: 220px;
  height: 220px;
  background: radial-gradient(circle, rgba(255, 100, 51, 0.25) 0%, transparent 70%);
  pointer-events: none;
}

.b2b-badge {
  display: inline-block;
  padding: 6px 16px;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: var(--radius-pill);
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: #ff9d76;
  margin-bottom: 16px;
}

.b2b-title {
  font-size: clamp(24px, 4vw, 34px);
  font-weight: 800;
  margin-bottom: 14px;
  color: #ffffff;
}

.b2b-desc {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.88);
  max-width: 680px;
  margin: 0 auto 32px;
  line-height: 1.7;
}

.b2b-contact-pills {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 16px;
  margin-bottom: 30px;
}

.b2b-pill {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.22);
  padding: 11px 22px;
  border-radius: var(--radius-pill);
  font-size: 14.5px;
  font-weight: 600;
  color: #ffffff;
  text-decoration: none;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transition: all 0.25s ease;
}

.b2b-pill:hover {
  background: rgba(255, 255, 255, 0.24);
  border-color: rgba(255, 255, 255, 0.45);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
}

.b2b-cta-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--cta);
  color: #ffffff;
  padding: 14px 34px;
  border-radius: var(--radius-pill);
  font-weight: 700;
  font-size: 15.5px;
  text-decoration: none;
  box-shadow: 0 10px 24px rgba(255, 100, 51, 0.4);
  transition: all 0.25s ease;
}

.b2b-cta-btn:hover {
  background: var(--cta-dark);
  transform: translateY(-2px);
  box-shadow: 0 14px 30px rgba(255, 100, 51, 0.55);
}