@import url('https://fonts.googleapis.com/css2?family=Hind+Siliguri:wght@400;500;600;700&family=Plus+Jakarta+Sans:wght@500;600;700;800&display=swap');

:root {
  /* MEDICO Official Brand Colors */
  --medico-red: #e52e2e;
  --medico-red-dark: #b71c1c;
  --medico-red-light: #ff4d4d;
  --medico-navy: #0f2c59;
  --medico-navy-dark: #071927;
  --medico-blue: #0b5ed7;
  --medico-blue-dark: #084298;
  --medico-cyan: #00b4d8;

  --bg-light: #f8fafc;
  --bg-card: #ffffff;
  --bg-alt: #f1f5f9;

  --text-dark: #0f172a;
  --text-muted: #64748b;
  --text-light: #ffffff;
  --border-color: #e2e8f0;

  --radius-sm: 10px;
  --radius-md: 18px;
  --radius-lg: 28px;

  /* MEDICO Red to Light Hero Gradient */
  --grad-hero-red-white: linear-gradient(180deg, #c62828 10%, #e11d48 55%, #f8fafc 100%);
  --grad-btn-blue: linear-gradient(135deg, #0b5ed7 0%, #084298 100%);
  --grad-btn-blue-hover: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
  --grad-featured: linear-gradient(135deg, #0f2c59 0%, #1d4ed8 100%);

  --shadow-sm: 0 4px 14px rgba(11, 94, 215, 0.08);
  --shadow-md: 0 10px 30px rgba(11, 94, 215, 0.12);
  --shadow-lg: 0 20px 50px rgba(15, 44, 89, 0.16);
  --shadow-blue-glow: 0 8px 25px rgba(11, 94, 215, 0.35);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Hind Siliguri', 'Plus Jakarta Sans', sans-serif;
}

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

body {
  background-color: var(--bg-light);
  color: var(--text-dark);
  line-height: 1.6;
  overflow-x: hidden;
}

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  width: 100%;
}

/* Top Announcement Bar */
.top-announcement-bar {
  background: linear-gradient(90deg, #dc2626 0%, #ea580c 100%);
  color: #ffffff;
  text-align: center;
  padding: 10px 16px;
  font-size: 0.92rem;
  font-weight: 700;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

/* 1. Hero Section */
.hero-section {
  background: var(--grad-hero-red-white);
  color: #ffffff;
  padding: 60px 0 95px;
  position: relative;
  overflow: hidden;
}

.hero-section::before {
  content: '';
  position: absolute;
  top: -120px;
  left: -120px;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.25) 0%, rgba(0, 0, 0, 0) 70%);
  pointer-events: none;
}

.hero-section::after {
  content: '';
  position: absolute;
  bottom: -150px;
  right: -150px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.3) 0%, rgba(0, 0, 0, 0) 70%);
  pointer-events: none;
}

.hero-container {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 48px;
  align-items: center;
}

.hero-logo-wrap {
  margin-bottom: 24px;
  display: inline-block;
}

.hero-content-logo {
  height: 105px;
  max-width: 320px;
  object-fit: contain;
  filter: drop-shadow(0 10px 25px rgba(0, 0, 0, 0.25));
  display: block;
  transition: transform 0.3s ease;
}

.hero-content-logo:hover {
  transform: scale(1.03);
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.22);
  backdrop-filter: blur(10px);
  border: 1.5px solid rgba(255, 255, 255, 0.45);
  color: #ffffff;
  padding: 8px 20px;
  border-radius: 30px;
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 20px;
}

.hero-title {
  font-size: 3.1rem;
  font-weight: 800;
  line-height: 1.25;
  margin-bottom: 20px;
  color: #ffffff;
}

.hero-title .highlight {
  color: #ffffff;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.15);
}

.hero-subtitle {
  font-size: 1.15rem;
  color: #ffffff;
  margin-bottom: 36px;
  line-height: 1.7;
  text-shadow: 0 1px 4px rgba(0, 0, 0, 0.15);
}

.hero-cta-group {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.hero-hotline-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: #ffffff;
  font-weight: 700;
  font-size: 1rem;
  text-decoration: none;
  background: rgba(255, 255, 255, 0.22);
  backdrop-filter: blur(10px);
  padding: 16px 24px;
  border-radius: var(--radius-sm);
  border: 1.5px solid rgba(255, 255, 255, 0.45);
  transition: all 0.25s ease;
}

.hero-hotline-btn:hover {
  background: #ffffff;
  color: var(--medico-red-dark);
}

.hero-image-wrapper {
  position: relative;
  display: flex;
  justify-content: center;
  width: 100%;
}

.mockup-img {
  width: 100%;
  max-width: 480px;
  border-radius: var(--radius-md);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.25);
  transition: transform 0.4s ease;

}

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

.hero-float-badge {
  position: absolute;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  color: var(--medico-navy);
  font-weight: 700;
  font-size: 0.88rem;
  padding: 10px 18px;
  border-radius: 30px;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.18);
  border: 1px solid rgba(255, 255, 255, 0.6);
  z-index: 10;
  display: flex;
  align-items: center;
  gap: 8px;
  animation: floatAnim 4s ease-in-out infinite;
}

.hero-float-badge.badge-top-right {
  top: -16px;
  right: -12px;
}

.hero-float-badge.badge-bottom-left {
  bottom: 16px;
  left: -16px;
  animation-delay: 2s;
}

@keyframes floatAnim {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

/* Royal Blue Buttons */
.btn-primary,
.btn-orange,
.btn-select-pkg {
  background: var(--grad-btn-blue);
  color: #ffffff !important;
  padding: 14px 28px;
  border-radius: var(--radius-sm);
  font-size: 1rem;
  font-weight: 700;
  text-decoration: none;
  border: none;
  cursor: pointer;
  box-shadow: var(--shadow-blue-glow);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.btn-primary:hover,
.btn-orange:hover,
.btn-select-pkg:hover {
  background: var(--grad-btn-blue-hover);
  transform: translateY(-3px);
  box-shadow: 0 12px 30px rgba(11, 94, 215, 0.45);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.22);
  color: #ffffff !important;
  padding: 14px 28px;
  border-radius: var(--radius-sm);
  font-size: 1rem;
  font-weight: 700;
  text-decoration: none;
  border: 1.5px solid rgba(255, 255, 255, 0.45);
  cursor: pointer;
  transition: all 0.25s ease;
}

.btn-secondary:hover {
  background: #ffffff;
  color: var(--medico-navy) !important;
}

.btn-block {
  width: 100%;
}

/* Features Grid */
.features-section {
  padding: 50px 0;
  background: #ffffff;
  border-bottom: 1px solid var(--border-color);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
}

.feature-card {
  background: #f8fafc;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 24px;
  text-align: center;
  transition: all 0.3s ease;
}

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

.feature-icon {
  font-size: 2.2rem;
  margin-bottom: 12px;
}

.feature-card h3 {
  font-size: 1.15rem;
  color: var(--medico-navy);
  margin-bottom: 8px;
  font-weight: 800;
}

.feature-card p {
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* 2. Packages Showcase Section */
.packages-section {
  padding: 70px 0 90px;
  background: var(--bg-light);
}

.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 48px;
}

.section-header h2 {
  font-size: 2.3rem;
  font-weight: 800;
  color: var(--text-dark);
  margin-bottom: 10px;
}

.section-header p {
  font-size: 1.1rem;
  color: var(--text-muted);
}

/* Featured Package Card */
.featured-package-card {
  background: var(--grad-featured);
  color: #ffffff;
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow-lg);
  border: 1px solid rgba(11, 94, 215, 0.2);
  margin-bottom: 50px;
  position: relative;
  overflow: hidden;
}

.featured-tag {
  display: inline-block;
  background: var(--medico-red);
  color: #ffffff;
  font-weight: 800;
  font-size: 0.85rem;
  padding: 6px 16px;
  border-radius: 20px;
  margin-bottom: 20px;
}

.featured-pkg-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 36px;
  align-items: center;
}

.pkg-title {
  font-size: 2.2rem;
  font-weight: 800;
  margin-bottom: 12px;
  color: #ffffff;
}

.pkg-desc {
  color: #cbd5e1;
  margin-bottom: 24px;
  font-size: 1.05rem;
}

.pkg-feature-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 24px;
  font-size: 0.98rem;
  color: #e2e8f0;
}

.pkg-price-wrap {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 14px;
}

.old-price {
  font-size: 1.4rem;
  text-decoration: line-through;
  color: #94a3b8;
}

.new-price {
  font-size: 2.5rem;
  font-weight: 800;
  color: #38bdf8;
}

.discount-badge {
  background: rgba(225, 29, 72, 0.25);
  color: #fecdd3;
  border: 1px solid rgba(225, 29, 72, 0.5);
  padding: 4px 14px;
  border-radius: 20px;
  font-weight: 700;
  font-size: 0.85rem;
}

.featured-pkg-img img {
  width: 100%;
  border-radius: var(--radius-md);
  box-shadow: 0 12px 35px rgba(0, 0, 0, 0.3);
}

/* Secondary Packages Grid (Price -> Name -> Book List -> Order Button Layout) */
.packages-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 28px;
}

.pkg-card {
  background: var(--bg-card);
  border: 1.5px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 28px;
  transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-sm);
}

.pkg-card:hover {
  transform: translateY(-6px);
  border-color: var(--medico-blue);
  box-shadow: var(--shadow-md);
}

.pkg-card-price {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 10px;
}

.pkg-card-price .old-price {
  font-size: 1.15rem;
  text-decoration: line-through;
  color: #94a3b8;
}

.pkg-card-price .new-price {
  font-size: 2rem;
  font-weight: 800;
  color: var(--medico-blue);
}

.pkg-card-title {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--medico-navy);
  margin-bottom: 14px;
}

.pkg-book-list {
  list-style: none;
  margin-bottom: 24px;
  flex-grow: 1;
}

.pkg-book-list li {
  padding: 6px 0;
  font-size: 0.92rem;
  color: var(--text-muted);
  font-weight: 600;
}

/* Individual Books Section */
.book-lists-section {
  padding: 70px 0;
  background: var(--bg-alt);
}

.singles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 24px;
}

.single-book-card {
  background: var(--bg-card);
  border: 1.5px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 20px;
  text-align: center;
  transition: all 0.3s ease;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.single-book-card.selected {
  border-color: var(--medico-blue);
  background: rgba(11, 94, 215, 0.04);
  box-shadow: var(--shadow-md);
}

.single-book-card:hover {
  border-color: var(--medico-blue);
  transform: translateY(-4px);
}

.single-book-select-wrap {
  margin-bottom: 12px;
}

.single-book-checkbox {
  width: 22px;
  height: 22px;
  accent-color: var(--medico-blue);
  cursor: pointer;
}

.single-book-img img {
  height: 160px;
  max-width: 100%;
  object-fit: contain;
  margin-bottom: 14px;
}

.single-book-info h3 {
  font-size: 1.15rem;
  color: var(--text-dark);
  font-weight: 800;
  margin-bottom: 6px;
}

.single-book-price {
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--medico-blue);
  margin-bottom: 14px;
}

.btn-single-toggle {
  background: #eff6ff;
  color: var(--medico-blue);
  border: 1px solid #bfdbfe;
  padding: 8px 18px;
  border-radius: var(--radius-sm);
  font-weight: 700;
  font-size: 0.88rem;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-single-toggle:hover {
  background: var(--medico-blue);
  color: #ffffff;
}

/* 3. Order Checkout Section */
.order-section {
  padding: 80px 0 100px;
  background: #ffffff;
}

.order-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 36px;
  align-items: start;
}

.form-card {
  background: #ffffff;
  border-radius: var(--radius-md);
  padding: 36px;
  box-shadow: var(--shadow-md);
  border: 1.5px solid var(--border-color);
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text-dark);
  font-size: 0.92rem;
}

.form-control {
  width: 100%;
  padding: 12px 16px;
  border: 1.5px solid #cbd5e1;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  transition: all 0.2s;
  background: #ffffff;
  color: var(--text-dark);
}

.form-control:focus {
  outline: none;
  border-color: var(--medico-blue);
  box-shadow: 0 0 0 4px rgba(11, 94, 215, 0.12);
}

.form-note {
  display: block;
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 8px;
  background: #f1f5f9;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  border-left: 4px solid var(--medico-blue);
  line-height: 1.5;
}

.form-note-sub {
  display: block;
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 5px;
}

/* Delivery Area Button System */
.delivery-btn-group {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.delivery-btn {
  background: #ffffff;
  border: 2px solid #cbd5e1;
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  cursor: pointer;
  text-align: left;
  transition: all 0.25s ease;
  display: flex;
  flex-direction: column;
}

.delivery-btn:hover {
  border-color: var(--medico-blue);
}

.delivery-btn.active {
  border-color: var(--medico-blue);
  background: rgba(11, 94, 215, 0.06);
  box-shadow: 0 4px 14px rgba(11, 94, 215, 0.12);
}

.loc-name {
  font-weight: 800;
  font-size: 1rem;
  color: var(--text-dark);
}

.loc-fee {
  font-size: 0.82rem;
  color: var(--medico-blue);
  font-weight: 700;
  margin-top: 2px;
}

/* Online Payment Percentage Button System */
.payment-perc-group {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 10px;
}

.perc-btn {
  background: #ffffff;
  border: 2px solid #cbd5e1;
  border-radius: var(--radius-sm);
  padding: 10px 8px;
  cursor: pointer;
  text-align: center;
  transition: all 0.25s ease;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.perc-btn:hover {
  border-color: var(--medico-blue);
}

.perc-btn.active {
  border-color: var(--medico-blue);
  background: rgba(11, 94, 215, 0.08);
  box-shadow: 0 4px 14px rgba(11, 94, 215, 0.12);
}

.perc-val {
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--medico-blue);
}

.perc-lbl {
  font-size: 0.72rem;
  color: var(--text-muted);
  font-weight: 600;
  margin-top: 2px;
}

/* Online Pay Instructions Box */
.online-pay-box {
  background: #f8fafc;
  border: 1.5px solid #cbd5e1;
  border-radius: var(--radius-sm);
  padding: 18px;
  margin-bottom: 20px;
}

.pay-methods-icons {
  display: flex;
  gap: 10px;
  margin-bottom: 10px;
}

.pay-method-tag {
  font-size: 0.82rem;
  font-weight: 800;
  padding: 4px 12px;
  border-radius: 20px;
  color: #ffffff;
}

.bkash-tag {
  background: #e2136e;
}

.pay-instruction {
  font-size: 0.92rem;
  color: var(--text-dark);
  line-height: 1.6;
  margin-bottom: 14px;
}

.pay-num {
  color: var(--medico-blue);
  font-size: 1.05rem;
}

.summary-card {
  background: #ffffff;
  color: var(--text-dark);
  border-radius: var(--radius-md);
  padding: 32px;
  box-shadow: var(--shadow-md);
  border: 2.5px solid var(--medico-blue);
  position: sticky;
  top: 90px;
}

.summary-heading {
  font-size: 1.35rem;
  margin-bottom: 18px;
  padding-bottom: 12px;
  border-bottom: 1px solid #e2e8f0;
  color: var(--medico-navy);
}

.summary-row {
  display: flex;
  justify-content: space-between;
  margin-bottom: 12px;
  font-size: 0.95rem;
  color: var(--text-muted);
}

.summary-row.total-row {
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--medico-navy);
  padding-top: 12px;
  border-top: 1px dashed #e2e8f0;
  margin-top: 12px;
}

.summary-row.payable-row {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--medico-blue);
  background: rgba(11, 94, 215, 0.06);
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  margin-top: 10px;
}

.summary-row.due-row {
  font-size: 0.95rem;
  font-weight: 700;
  color: #e52e2e;
  margin-top: 6px;
}

.trust-badge-box {
  background: #ecfdf5;
  color: #059669;
  padding: 12px;
  border-radius: var(--radius-sm);
  font-weight: 700;
  text-align: center;
  margin-top: 20px;
  font-size: 0.88rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

/* Modal Popup */
.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(15, 44, 89, 0.7);
  backdrop-filter: blur(8px);
  z-index: 2000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 16px;
  overflow-y: auto;
}

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

.modal-content {
  background: #ffffff;
  color: var(--text-dark);
  border-radius: var(--radius-md);
  max-width: 480px;
  width: 100%;
  padding: 28px 24px;
  box-shadow: var(--shadow-lg);
  max-height: 90vh;
  overflow-y: auto;
}

.invoice-box {
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: var(--radius-sm);
  padding: 14px;
  margin: 16px 0;
  text-align: left;
  font-size: 0.9rem;
}

.inv-line {
  display: flex;
  justify-content: space-between;
  margin-bottom: 8px;
}

/* Footer */
.footer {
  background: var(--medico-navy);
  color: #cbd5e1;
  padding: 50px 0 24px;
  border-top: 3px solid var(--medico-blue);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 36px;
  margin-bottom: 36px;
}

.footer-col h4 {
  color: #ffffff;
  font-size: 1.1rem;
  margin-bottom: 14px;
}

.footer-bottom {
  text-align: center;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 0.85rem;
  color: #94a3b8;
}

/* ========================================================= */
/* COMPLETE MULTI-DEVICE RESPONSIVE BREAKPOINTS (CSS MEDIA)  */
/* ========================================================= */

/* Large Tablets & Small Laptops (max-width: 1024px) */
@media (max-width: 1024px) {
  .container {
    padding: 0 20px;
  }

  .hero-title {
    font-size: 2.5rem;
  }

  .hero-container {
    gap: 32px;
  }

  .featured-pkg-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .order-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .summary-card {
    position: static;
    top: auto;
  }
}

/* Tablets (max-width: 768px) */
@media (max-width: 768px) {
  .hero-section {
    padding: 40px 0 70px;
  }

  .hero-container {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 36px;
  }

  .hero-content-logo {
    margin: 0 auto 16px;
    height: 85px;
  }

  .hero-badge {
    margin: 0 auto 16px;
  }

  .hero-title {
    font-size: 2.1rem;
  }

  .hero-subtitle {
    font-size: 1rem;
    margin-bottom: 28px;
  }

  .hero-cta-group {
    justify-content: center;
  }

  .hero-float-badge {
    position: relative;
    top: auto !important;
    bottom: auto !important;
    left: auto !important;
    right: auto !important;
    margin: 10px auto 0;
    display: inline-flex;
    animation: none;
  }

  .hero-image-wrapper {
    flex-direction: column;
    align-items: center;
  }

  .packages-section,
  .book-lists-section,
  .order-section {
    padding: 50px 0;
  }

  .section-header h2 {
    font-size: 1.85rem;
  }

  .featured-package-card {
    padding: 24px;
    margin-bottom: 36px;
  }

  .pkg-title {
    font-size: 1.7rem;
  }

  .new-price {
    font-size: 2.1rem;
  }

  .form-card {
    padding: 24px;
  }

  .summary-card {
    padding: 24px;
  }
}

/* Mobile Devices (max-width: 480px) */
@media (max-width: 480px) {
  .container {
    padding: 0 14px;
  }

  .top-announcement-bar {
    font-size: 0.82rem;
    padding: 8px 12px;
  }

  .hero-title {
    font-size: 1.65rem;
    line-height: 1.3;
  }

  .hero-content-logo {
    height: 65px;
    max-width: 240px;
  }

  .btn-primary,
  .btn-orange,
  .btn-secondary,
  .btn-select-pkg {
    width: 100%;
    padding: 12px 18px;
    font-size: 0.95rem;
  }

  .featured-tag {
    font-size: 0.78rem;
    padding: 4px 12px;
  }

  .packages-grid {
    grid-template-columns: 1fr;
  }

  .singles-grid {
    grid-template-columns: 1fr;
  }

  .delivery-btn-group,
  .payment-perc-group {
    grid-template-columns: 1fr;
  }

  .form-card,
  .summary-card {
    padding: 18px 14px;
    border-radius: var(--radius-sm);
  }

  .modal-content {
    padding: 20px 14px;
  }

  .inv-line {
    font-size: 0.85rem;
  }
}

/* Button Inline Loading Spinner */
.btn-spinner {
  display: inline-block;
  width: 18px;
  height: 18px;
  border: 3px solid rgba(255, 255, 255, 0.35);
  border-top-color: #ffffff;
  border-radius: 50%;
  animation: btnSpin 0.7s linear infinite;
  vertical-align: middle;
  margin-right: 8px;
}

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