/* ==========================================================================
   Global CSS & Design Tokens - Lanbang B2B Theme
   ========================================================================== */

:root {
  --primary: #c59b27;
  --primary-hover: #ad8419;
  --primary-light: #fbf7ec;
  --dark: #141414;
  --dark-light: #1f1f1f;
  --gray-900: #212529;
  --gray-700: #495057;
  --gray-500: #adb5bd;
  --gray-300: #dee2e6;
  --gray-100: #f8f9fa;
  --white: #ffffff;
  --font-heading: 'Montserrat', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-body: 'Open Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --container-width: 1240px;
  --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
  --shadow-md: 0 8px 24px rgba(0,0,0,0.08);
  --shadow-lg: 0 16px 40px rgba(0,0,0,0.12);
  --radius-sm: 4px;
  --radius-md: 8px;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  font-size: 0.95rem;
  line-height: 1.65;
  color: var(--gray-700);
  background-color: var(--white);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--dark);
  font-weight: 700;
  line-height: 1.3;
}

a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition);
}

ul, ol {
  list-style: none;
}

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

/* Layout Utilities */
.container {
  width: 100%;
  max-width: var(--container-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: 20px;
  padding-right: 20px;
}

.clearfix::after {
  content: "";
  display: table;
  clear: both;
}

.section-padding {
  padding-top: 80px;
  padding-bottom: 80px;
}

.section-header {
  text-align: center;
  margin-bottom: 50px;
}

.section-header .sub-title {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--primary);
  margin-bottom: 8px;
}

.section-header .main-title {
  font-size: 2.2rem;
  color: var(--dark);
  position: relative;
  padding-bottom: 15px;
}

.section-header .main-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 50px;
  height: 3px;
  background-color: var(--primary);
}

.section-header.white .main-title {
  color: var(--white);
}

.section-header.white .main-title::after {
  background-color: var(--primary);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 30px;
  font-family: var(--font-heading);
  font-size: 0.9rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition);
  border: 2px solid transparent;
}

.btn-primary {
  background-color: var(--primary);
  color: var(--white);
}

.btn-primary:hover {
  background-color: var(--primary-hover);
  box-shadow: 0 6px 20px rgba(197, 155, 39, 0.35);
  transform: translateY(-2px);
}

.btn-outline {
  background-color: transparent;
  border-color: var(--primary);
  color: var(--primary);
}

.btn-outline:hover {
  background-color: var(--primary);
  color: var(--white);
}

.btn-dark {
  background-color: var(--dark);
  color: var(--white);
}

.btn-dark:hover {
  background-color: var(--primary);
}

/* Breadcrumbs */
.lanbang-breadcrumbs {
  background-color: var(--gray-100);
  padding: 14px 0;
  border-bottom: 1px solid var(--gray-300);
  font-size: 0.85rem;
}

.lanbang-breadcrumbs a {
  color: var(--gray-700);
}

.lanbang-breadcrumbs a:hover {
  color: var(--primary);
}

.lanbang-breadcrumbs .sep {
  margin: 0 8px;
  color: var(--gray-500);
}

.lanbang-breadcrumbs .current {
  color: var(--primary);
  font-weight: 600;
}

/* Pagination */
.pagination {
  margin-top: 50px;
  text-align: center;
}

.pagination .nav-links {
  display: inline-flex;
  gap: 8px;
}

.pagination .page-numbers {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border: 1px solid var(--gray-300);
  border-radius: var(--radius-sm);
  color: var(--gray-700);
  font-weight: 600;
}

.pagination .page-numbers.current,
.pagination .page-numbers:hover {
  background-color: var(--primary);
  border-color: var(--primary);
  color: var(--white);
}

/* Modal Popup Styles */
.lanbang-modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.75);
  z-index: 99999;
  justify-content: center;
  align-items: center;
  padding: 20px;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.lanbang-modal.active {
  display: flex;
  opacity: 1;
}

.lanbang-modal-content {
  background: var(--white);
  border-radius: var(--radius-md);
  width: 100%;
  max-width: 520px;
  padding: 35px 30px;
  position: relative;
  box-shadow: var(--shadow-lg);
  transform: translateY(20px);
  transition: transform 0.3s ease;
  text-align: left;
}

.lanbang-modal.active .lanbang-modal-content {
  transform: translateY(0);
}

.lanbang-modal-close {
  position: absolute;
  top: 15px;
  right: 15px;
  width: 32px;
  height: 32px;
  font-size: 26px;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--gray-500);
  transition: var(--transition);
  border-radius: 50%;
}

.lanbang-modal-close:hover {
  color: var(--dark);
  background-color: var(--gray-100);
}

/* Global Form Elements */
.form-group {
  margin-bottom: 18px;
  width: 100%;
  text-align: left;
}

.form-group label {
  display: block;
  width: 100%;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--dark);
  font-family: var(--font-heading);
}

.form-control {
  display: block;
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--gray-300);
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 0.92rem;
  line-height: 1.5;
  color: var(--dark);
  background-color: var(--white);
  box-sizing: border-box;
  transition: var(--transition);
}

.form-control:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(197, 155, 39, 0.2);
}

textarea.form-control {
  resize: vertical;
  min-height: 90px;
}

.form-alert {
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  margin-bottom: 18px;
  font-size: 0.88rem;
  display: none;
  line-height: 1.5;
}

.form-alert.success {
  background-color: #d4edda;
  color: #155724;
  border: 1px solid #c3e6cb;
  display: block;
}

.form-alert.error {
  background-color: #f8d7da;
  color: #721c24;
  border: 1px solid #f5c6cb;
  display: block;
}