/*
Theme Name: Bach Khoa HP
Theme URI: https://bachkhoahp.vn/
Author: Bach Khoa HP Team
Author URI: https://bachkhoahp.vn/
Description: Theme WordPress chuyên nghiệp cho Bách Khoa HP - Giải pháp toàn diện cho doanh nghiệp (Vật tư tiêu hao, Quà tặng doanh nghiệp, Khách sạn & lưu trú). Tối ưu SEO, tốc độ cao, giao diện chuẩn responsive theo thiết kế gốc.
Version: 1.0.0
Tested up to: 6.7
Requires at least: 6.0
Requires PHP: 7.4
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: bachkhoahp
Tags: business, corporate, e-commerce, two-columns, custom-header, custom-menu, featured-images, full-width-template, theme-options, translation-ready
*/

/* Reset & Base Variables */
:root {
  --bk-blue-primary: #0b4ea2;
  --bk-blue-dark: #073573;
  --bk-blue-light: #eaf3fd;
  --bk-blue-soft: #f4f8fe;
  --bk-orange: #f25816;
  --bk-orange-hover: #d94608;
  --bk-orange-light: #fff2eb;
  --bk-text-main: #1e293b;
  --bk-text-heading: #0b3469;
  --bk-text-muted: #64748b;
  --bk-text-light: #94a3b8;
  --bk-border: #e2e8f0;
  --bk-border-light: #f1f5f9;
  --bk-white: #ffffff;
  --bk-dark-bg: #072a56;
  --bk-darker-bg: #051d3b;
  --bk-shadow-sm: 0 2px 6px rgba(11, 78, 162, 0.06);
  --bk-shadow-md: 0 8px 20px rgba(11, 78, 162, 0.08);
  --bk-shadow-lg: 0 14px 30px rgba(11, 78, 162, 0.12);
  --bk-radius-sm: 6px;
  --bk-radius-md: 10px;
  --bk-radius-lg: 16px;
  --bk-radius-pill: 9999px;
  --bk-transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --bk-container-max: 1240px;
  --bk-font-sans: 'Be Vietnam Pro', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 15px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--bk-font-sans);
  color: var(--bk-text-main);
  background-color: #ffffff;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

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

ul, ol {
  list-style: none;
}

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  outline: none;
}

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

/* Typography Helpers */
.bk-section-title {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--bk-blue-primary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  position: relative;
  display: inline-block;
  margin-bottom: 20px;
}

.bk-section-subtitle {
  color: var(--bk-text-muted);
  font-size: 0.95rem;
  margin-top: -12px;
  margin-bottom: 24px;
}

/* Button Component */
.bk-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 700;
  font-size: 0.92rem;
  padding: 10px 22px;
  border-radius: var(--bk-radius-md);
  border: none;
  cursor: pointer;
  transition: all 0.25s ease;
  text-align: center;
  line-height: 1.4;
  outline: none;
}

.bk-btn-orange {
  background: linear-gradient(135deg, #f25816 0%, #ff682e 100%);
  color: var(--bk-white);
  box-shadow: 0 4px 14px rgba(242, 88, 22, 0.28);
}

.bk-btn-orange:hover {
  background: linear-gradient(135deg, #d94608 0%, #f25816 100%);
  color: var(--bk-white);
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(242, 88, 22, 0.4);
}

.bk-btn-orange:active {
  transform: translateY(0);
  box-shadow: 0 2px 8px rgba(242, 88, 22, 0.2);
}

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

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

.bk-btn-outline {
  background-color: transparent;
  border: 1.5px solid var(--bk-orange);
  color: var(--bk-orange);
}

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

.bk-btn-sm {
  padding: 6px 14px;
  font-size: 0.85rem;
  border-radius: var(--bk-radius-sm);
}

.bk-btn-block {
  width: 100%;
}

.bk-view-more-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--bk-blue-primary);
  font-weight: 600;
  font-size: 0.9rem;
  transition: var(--bk-transition);
}

.bk-view-more-link:hover {
  color: var(--bk-orange);
  gap: 10px;
}

/* Floating Actions */
.bk-floating-contact {
  position: fixed;
  right: 20px;
  bottom: 25px;
  z-index: 999;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.bk-float-btn {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  transition: var(--bk-transition);
  position: relative;
}

.bk-float-btn:hover {
  transform: scale(1.1);
}

.bk-float-zalo {
  background-color: #0068ff;
}

.bk-float-phone {
  background-color: #25d366;
}

.bk-float-quote {
  background-color: var(--bk-orange);
}

.bk-float-scrolltop {
  background-color: var(--bk-blue-primary);
  opacity: 0;
  pointer-events: none;
}

.bk-float-scrolltop.is-visible {
  opacity: 1;
  pointer-events: auto;
}