/* ==========================================================================
   GREENLEADS MEDIA - DESIGN SYSTEM
   Phong cách: Nền trắng, Chữ đen, Viền xanh lá cây, Sáng sủa, Đơn giản, Tinh tế
   ========================================================================== */

:root {
  --gl-primary: #16a34a;        /* Xanh lá cây tự nhiên, đạt chuẩn WCAG */
  --gl-primary-light: #22c55e;  /* Xanh lá sáng nổi bật */
  --gl-primary-dark: #15803d;   /* Xanh lá đậm */
  --gl-primary-subtle: #f0fdf4;/* Nền xanh nhạt dịu mắt */
  --gl-border-green: #22c55e;  /* Viền xanh chủ đạo */
  --gl-border-subtle: #bbf7d0; /* Viền xanh nhẹ */
  
  --gl-white: #ffffff;
  --gl-bg-light: #f8fafc;
  --gl-text-dark: #0f172a;     /* Chữ đen đậm rõ nét */
  --gl-text-muted: #334155;    /* Chữ phụ xám đen dễ đọc */
  --gl-text-soft: #64748b;
}

/* Reset toàn trang nền trắng, chữ đen */
html, body {
  background-color: #ffffff !important;
  color: var(--gl-text-dark) !important;
  font-family: 'Open Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif !important;
  line-height: 1.6;
}

/* Chữ đen sắc nét */
h1, h2, h3, h4, h5, h6,
.section-title h2,
.section-title h3,
.widget-title,
.f-title h4 {
  color: var(--gl-text-dark) !important;
  font-weight: 700 !important;
}

p, span, li, td, th {
  color: var(--gl-text-dark);
}

.text-muted, .text-secondary {
  color: var(--gl-text-muted) !important;
}

/* Link */
a {
  color: var(--gl-text-dark);
  transition: all 0.2s ease;
}

a:hover, a:focus {
  color: var(--gl-primary) !important;
  text-decoration: none;
}

/* HEADER & NAVBAR: Nền trắng, Chữ đen, Viền xanh */
.header-wrapper,
.main-header,
header,
.navbar,
.top-bar {
  background-color: #ffffff !important;
  border-bottom: 2px solid var(--gl-border-green) !important;
}

.rm-nav {
  background-color: #ffffff !important;
}

.rm-nav li a {
  color: var(--gl-text-dark) !important;
  font-weight: 600 !important;
  padding: 10px 16px !important;
  transition: all 0.2s ease;
}

.rm-nav li a:hover,
.rm-nav li.current-menu-item > a,
.menu-item.current-menu-item > a {
  color: var(--gl-primary) !important;
  background-color: var(--gl-primary-subtle) !important;
  border-radius: 6px;
}

.sub-menu {
  background-color: #ffffff !important;
  border: 2px solid var(--gl-border-green) !important;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.08) !important;
  border-radius: 8px !important;
}

.sub-menu li a {
  color: var(--gl-text-dark) !important;
  border-bottom: 1px solid #f1f5f9;
}

.sub-menu li a:hover {
  background-color: var(--gl-primary-subtle) !important;
  color: var(--gl-primary) !important;
}

/* NÚT BẤM (BUTTONS): Nền trắng, Chữ đen, Viền xanh */
.btn-primary,
.btn-theme,
.theme-btn,
button.btn-primary,
input[type="submit"],
.wpcf7-submit,
.vc_btn3,
.gl-btn {
  background-color: #ffffff !important;
  color: var(--gl-text-dark) !important;
  border: 2px solid var(--gl-border-green) !important;
  font-weight: 700 !important;
  padding: 10px 26px !important;
  border-radius: 8px !important;
  transition: all 0.25s ease-in-out !important;
  display: inline-block;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.btn-primary:hover,
.btn-theme:hover,
.theme-btn:hover,
button.btn-primary:hover,
input[type="submit"]:hover,
.wpcf7-submit:hover,
.vc_btn3:hover,
.gl-btn:hover {
  background-color: var(--gl-primary) !important;
  color: #ffffff !important;
  border-color: var(--gl-primary) !important;
  box-shadow: 0 4px 14px rgba(34, 197, 94, 0.3) !important;
  transform: translateY(-2px);
}

/* CARDS & SERVICE BOXES: Nền trắng, Chữ đen, Viền xanh */
.service-box,
.feature-box,
.icon-box,
.card,
.wpb_wrapper .vc_column-inner {
  background-color: #ffffff !important;
}

.service-card-item,
.service-box-custom {
  background-color: #ffffff !important;
  border: 2px solid var(--gl-border-subtle) !important;
  border-radius: 12px !important;
  padding: 28px 24px !important;
  transition: all 0.3s ease !important;
}

.service-card-item:hover,
.service-box-custom:hover {
  border-color: var(--gl-border-green) !important;
  box-shadow: 0 12px 24px rgba(34, 197, 94, 0.12) !important;
  transform: translateY(-4px);
}

/* ICONS: Màu xanh lá */
.service-icon i,
.f-icon i,
.icon-box i,
.fa,
.flaticon {
  color: var(--gl-primary) !important;
}

/* SECTION TITLES: Viền xanh gạch chân */
.section-title h2::after,
.section-title h3::after,
.heading-border {
  background-color: var(--gl-border-green) !important;
  height: 3px !important;
  width: 60px !important;
}

/* HERO SLIDER: HÌNH ẢNH CHẠY TỰ ĐỘNG - NỀN TRẮNG CHỮ ĐEN VIỀN XANH */
.gl-slider-wrapper {
  position: relative;
  width: 100%;
  max-width: 100%;
  height: 520px;
  overflow: hidden;
  background-color: #ffffff;
  border-bottom: 2px solid var(--gl-border-green);
}

.gl-slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.8s ease-in-out, visibility 0.8s ease-in-out;
  background-size: cover;
  background-position: center;
  display: flex;
  align-items: center;
}

.gl-slide.active {
  opacity: 1;
  visibility: visible;
}

.gl-slide-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, rgba(255, 255, 255, 0.94) 0%, rgba(255, 255, 255, 0.75) 50%, rgba(255, 255, 255, 0.3) 100%);
}

.gl-slide-content {
  position: relative;
  z-index: 2;
  max-width: 640px;
  padding: 40px;
  background-color: rgba(255, 255, 255, 0.95);
  border: 2px solid var(--gl-border-green);
  border-radius: 16px;
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.08);
  margin-left: 8%;
}

.gl-slide-badge {
  display: inline-block;
  background-color: var(--gl-primary-subtle);
  color: var(--gl-primary);
  border: 1px solid var(--gl-border-green);
  font-size: 0.85rem;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 20px;
  margin-bottom: 14px;
  letter-spacing: 1px;
}

.gl-slide-title {
  font-size: 2.4rem;
  font-weight: 800;
  line-height: 1.2;
  color: var(--gl-text-dark);
  margin-bottom: 12px;
}

.gl-slide-desc {
  font-size: 1.05rem;
  color: var(--gl-text-muted);
  margin-bottom: 24px;
  line-height: 1.5;
}

/* Nút Next / Prev của slider: Nền trắng, Chữ đen, Viền xanh */
.gl-slider-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 10;
  width: 48px;
  height: 48px;
  background-color: #ffffff;
  color: var(--gl-text-dark);
  border: 2px solid var(--gl-border-green);
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  transition: all 0.25s ease;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.gl-slider-arrow:hover {
  background-color: var(--gl-primary);
  color: #ffffff;
  border-color: var(--gl-primary);
  transform: translateY(-50%) scale(1.08);
}

.gl-slider-prev {
  left: 20px;
}

.gl-slider-next {
  right: 20px;
}

/* Dots điều hướng slider */
.gl-slider-dots {
  position: absolute;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 10;
  display: flex;
  gap: 10px;
}

.gl-dot {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background-color: #ffffff;
  border: 2px solid var(--gl-border-green);
  cursor: pointer;
  transition: all 0.25s ease;
}

.gl-dot.active {
  background-color: var(--gl-primary);
  width: 32px;
  border-radius: 10px;
}

/* SECTION KHỐI NỘI DUNG: Sáng sủa, Đơn giản */
section, .vc_row {
  background-color: #ffffff !important;
  padding: 60px 0;
}

.bg-pattern, .f-bg {
  background-color: #ffffff !important;
}

/* FOOTER: Nền trắng, Chữ đen, Viền xanh lá */
footer,
.footer,
.footer-wrapper,
#footer,
.footer-top {
  background-color: #ffffff !important;
  color: var(--gl-text-dark) !important;
  border-top: 3px solid var(--gl-border-green) !important;
  padding: 50px 0 20px !important;
}

footer a,
.footer a {
  color: var(--gl-text-dark) !important;
}

footer a:hover,
.footer a:hover {
  color: var(--gl-primary) !important;
}

footer .f-title h4,
footer .widget-title {
  color: var(--gl-text-dark) !important;
  border-bottom: 2px solid var(--gl-border-green);
  display: inline-block;
  padding-bottom: 8px;
  margin-bottom: 18px;
}

.footer-bottom,
.copyright-bar,
.sub-footer {
  background-color: #f8fafc !important;
  border-top: 1px solid var(--gl-border-subtle) !important;
  color: var(--gl-text-muted) !important;
  padding: 15px 0;
  text-align: center;
}

/* FORM: Nền trắng, Viền xanh */
.form-control,
input[type="text"],
input[type="email"],
input[type="tel"],
textarea,
select {
  background-color: #ffffff !important;
  color: var(--gl-text-dark) !important;
  border: 1.5px solid var(--gl-border-subtle) !important;
  border-radius: 8px !important;
  padding: 10px 14px !important;
}

.form-control:focus,
input:focus,
textarea:focus {
  border-color: var(--gl-border-green) !important;
  box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.2) !important;
  outline: none !important;
}

/* Responsive adjustment */
@media (max-width: 768px) {
  .gl-slider-wrapper {
    height: 420px;
  }
  .gl-slide-content {
    margin: 0 20px;
    padding: 24px;
  }
  .gl-slide-title {
    font-size: 1.7rem;
  }
}