/*
Theme Name: KhaiLT Cloud
Theme URI: https://khailt.servequake.com/
Author: KhaiLT
Author URI: https://khailt.servequake.com/
Description: Theme WordPress doanh nghiệp dành cho Hosting, VPS, Cloud Server và Dedicated Server. Thiết kế xanh - trắng, responsive, tối ưu Gutenberg và không phụ thuộc plugin.
Version: 1.0.0
Requires at least: 6.4
Tested up to: 6.8
Requires PHP: 8.0
Text Domain: khailt-cloud
Tags: blog, business, custom-logo, custom-menu, featured-images, threaded-comments, translation-ready, wide-blocks
License: GNU General Public License v2 or later
License URI: https://www.gnu.org/licenses/gpl-2.0.html
*/

:root {
  --kc-primary: #0b63ce;
  --kc-primary-dark: #084c9e;
  --kc-secondary: #19a7ff;
  --kc-accent: #00c2a8;
  --kc-dark: #0b1f3a;
  --kc-text: #334155;
  --kc-muted: #64748b;
  --kc-bg: #f6f9fc;
  --kc-white: #ffffff;
  --kc-border: #dbe7f3;
  --kc-shadow: 0 14px 35px rgba(11, 31, 58, 0.09);
  --kc-radius: 18px;
  --kc-container: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--kc-text);
  background: var(--kc-white);
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--kc-primary); text-decoration: none; }
a:hover { color: var(--kc-primary-dark); }
img { max-width: 100%; height: auto; }
button, input, textarea, select { font: inherit; }

.kc-container {
  width: min(calc(100% - 32px), var(--kc-container));
  margin-inline: auto;
}

.kc-skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 9999;
  background: var(--kc-dark);
  color: #fff;
  padding: 12px 16px;
}
.kc-skip-link:focus { left: 12px; top: 12px; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255,255,255,.95);
  border-bottom: 1px solid rgba(219,231,243,.9);
  backdrop-filter: blur(12px);
}
.kc-header-inner {
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.site-branding { display: flex; align-items: center; gap: 12px; }
.custom-logo { max-height: 48px; width: auto; }
.kc-brand-text { display: flex; flex-direction: column; }
.kc-site-title { font-size: 1.12rem; font-weight: 800; color: var(--kc-dark); line-height: 1.15; }
.kc-site-tagline { font-size: .78rem; color: var(--kc-muted); }

.kc-nav-toggle {
  display: none;
  border: 0;
  background: transparent;
  width: 44px;
  height: 44px;
  border-radius: 10px;
  cursor: pointer;
}
.kc-nav-toggle span,
.kc-nav-toggle::before,
.kc-nav-toggle::after {
  content: "";
  display: block;
  width: 24px;
  height: 2px;
  margin: 5px auto;
  background: var(--kc-dark);
  transition: .2s ease;
}
.primary-navigation ul { list-style: none; padding: 0; margin: 0; display: flex; align-items: center; gap: 24px; }
.primary-navigation li { position: relative; }
.primary-navigation a { color: var(--kc-dark); font-weight: 650; font-size: .95rem; }
.primary-navigation a:hover,
.primary-navigation .current-menu-item > a { color: var(--kc-primary); }
.primary-navigation .sub-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 220px;
  padding: 12px;
  background: #fff;
  border: 1px solid var(--kc-border);
  border-radius: 12px;
  box-shadow: var(--kc-shadow);
}
.primary-navigation li:hover > .sub-menu { display: block; }
.primary-navigation .sub-menu li + li { margin-top: 8px; }

.kc-header-cta,
.kc-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 22px;
  border: 1px solid transparent;
  border-radius: 12px;
  font-weight: 750;
  cursor: pointer;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
}
.kc-header-cta,
.kc-btn-primary {
  background: linear-gradient(135deg, var(--kc-primary), var(--kc-secondary));
  color: #fff;
  box-shadow: 0 10px 24px rgba(11,99,206,.24);
}
.kc-header-cta:hover,
.kc-btn-primary:hover { color: #fff; transform: translateY(-1px); box-shadow: 0 14px 28px rgba(11,99,206,.3); }
.kc-btn-secondary { background: #fff; color: var(--kc-primary); border-color: var(--kc-border); }
.kc-btn-secondary:hover { background: var(--kc-bg); }

.kc-hero {
  position: relative;
  overflow: hidden;
  padding: 94px 0 72px;
  background:
    radial-gradient(circle at 80% 10%, rgba(25,167,255,.20), transparent 34%),
    radial-gradient(circle at 5% 80%, rgba(0,194,168,.14), transparent 28%),
    linear-gradient(180deg, #f6fbff 0%, #ffffff 100%);
}
.kc-hero::after {
  content: "";
  position: absolute;
  inset: auto -120px -220px auto;
  width: 520px;
  height: 520px;
  border: 80px solid rgba(11,99,206,.05);
  border-radius: 50%;
}
.kc-hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: 1.12fr .88fr; gap: 56px; align-items: center; }
.kc-eyebrow {
  display: inline-flex;
  padding: 7px 12px;
  border-radius: 999px;
  background: #e9f4ff;
  color: var(--kc-primary);
  font-weight: 750;
  font-size: .82rem;
  letter-spacing: .02em;
}
.kc-hero h1 { margin: 18px 0; color: var(--kc-dark); font-size: clamp(2.4rem, 5vw, 4.7rem); line-height: 1.06; letter-spacing: -.045em; }
.kc-hero p { max-width: 700px; margin: 0; color: var(--kc-muted); font-size: 1.12rem; }
.kc-hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 30px; }
.kc-trust-row { display: flex; flex-wrap: wrap; gap: 18px; margin-top: 30px; color: var(--kc-muted); font-size: .92rem; }
.kc-trust-row span::before { content: "✓"; color: var(--kc-accent); font-weight: 900; margin-right: 7px; }

.kc-dashboard-card {
  position: relative;
  padding: 26px;
  border: 1px solid rgba(219,231,243,.95);
  border-radius: 26px;
  background: rgba(255,255,255,.92);
  box-shadow: 0 28px 60px rgba(11,31,58,.14);
}
.kc-dashboard-top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 22px; }
.kc-dashboard-title { font-weight: 800; color: var(--kc-dark); }
.kc-live { display: inline-flex; align-items: center; gap: 7px; font-size: .8rem; color: #087f5b; }
.kc-live::before { content: ""; width: 9px; height: 9px; border-radius: 50%; background: #12b886; box-shadow: 0 0 0 5px rgba(18,184,134,.12); }
.kc-metric-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.kc-metric { padding: 18px; border-radius: 16px; background: var(--kc-bg); border: 1px solid #e8f0f8; }
.kc-metric span { display: block; color: var(--kc-muted); font-size: .8rem; }
.kc-metric strong { display: block; color: var(--kc-dark); font-size: 1.42rem; margin-top: 4px; }
.kc-uptime { margin-top: 16px; padding: 18px; border-radius: 16px; background: linear-gradient(135deg, #0b63ce, #19a7ff); color: #fff; }
.kc-uptime small { opacity: .78; }
.kc-uptime strong { display: block; font-size: 1.8rem; margin-top: 4px; }

.kc-section { padding: 82px 0; }
.kc-section-alt { background: var(--kc-bg); }
.kc-section-header { max-width: 760px; margin: 0 auto 42px; text-align: center; }
.kc-section-header h2 { margin: 10px 0 14px; color: var(--kc-dark); font-size: clamp(1.9rem, 3vw, 2.75rem); line-height: 1.15; }
.kc-section-header p { margin: 0; color: var(--kc-muted); }

.kc-grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.kc-card {
  padding: 28px;
  border: 1px solid var(--kc-border);
  border-radius: var(--kc-radius);
  background: #fff;
  box-shadow: 0 8px 24px rgba(11,31,58,.05);
  transition: transform .2s ease, box-shadow .2s ease;
}
.kc-card:hover { transform: translateY(-5px); box-shadow: var(--kc-shadow); }
.kc-card-icon { width: 52px; height: 52px; display: grid; place-items: center; border-radius: 14px; background: #eaf5ff; color: var(--kc-primary); font-size: 1.4rem; font-weight: 900; }
.kc-card h3 { margin: 20px 0 10px; color: var(--kc-dark); font-size: 1.25rem; }
.kc-card p { margin: 0 0 20px; color: var(--kc-muted); }
.kc-card-link { font-weight: 750; }

.kc-stats { padding: 34px 0; background: var(--kc-dark); color: #fff; }
.kc-stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; text-align: center; }
.kc-stat strong { display: block; font-size: 2rem; }
.kc-stat span { color: #b9c7d8; font-size: .92rem; }

.kc-pricing-card { position: relative; }
.kc-pricing-card.is-featured { border: 2px solid var(--kc-primary); transform: translateY(-8px); }
.kc-pricing-card.is-featured:hover { transform: translateY(-10px); }
.kc-badge { position: absolute; top: 18px; right: 18px; padding: 6px 10px; border-radius: 999px; background: #e8f4ff; color: var(--kc-primary); font-weight: 750; font-size: .75rem; }
.kc-price { margin: 18px 0; color: var(--kc-dark); font-size: 2.35rem; font-weight: 850; }
.kc-price small { font-size: .9rem; color: var(--kc-muted); font-weight: 500; }
.kc-features { list-style: none; padding: 0; margin: 20px 0 26px; }
.kc-features li { padding: 9px 0; border-bottom: 1px dashed var(--kc-border); }
.kc-features li::before { content: "✓"; color: var(--kc-accent); font-weight: 900; margin-right: 9px; }

.kc-cta { padding: 72px 0; }
.kc-cta-box { display: grid; grid-template-columns: 1fr auto; gap: 30px; align-items: center; padding: 44px; border-radius: 24px; color: #fff; background: linear-gradient(135deg, var(--kc-dark), #123f76); box-shadow: var(--kc-shadow); }
.kc-cta-box h2 { margin: 0 0 8px; font-size: clamp(1.75rem, 3vw, 2.5rem); }
.kc-cta-box p { margin: 0; color: #c8d6e6; }

.site-main { min-height: 58vh; }
.kc-content-area { padding: 72px 0; }
.kc-content-grid { display: grid; grid-template-columns: minmax(0, 1fr) 320px; gap: 36px; }
.entry-header h1,
.entry-title { color: var(--kc-dark); line-height: 1.2; }
.entry-meta { color: var(--kc-muted); font-size: .9rem; margin-bottom: 24px; }
.entry-content > * { max-width: 800px; }
.entry-content .alignwide { max-width: 1100px; }
.entry-content .alignfull { max-width: none; width: 100vw; margin-left: calc(50% - 50vw); }
.post-card { margin-bottom: 24px; padding: 24px; border: 1px solid var(--kc-border); border-radius: 16px; background: #fff; }
.post-card .wp-post-image { border-radius: 12px; margin-bottom: 18px; }

.widget-area .widget { margin-bottom: 22px; padding: 22px; border: 1px solid var(--kc-border); border-radius: 16px; background: var(--kc-bg); }
.widget-title { margin-top: 0; color: var(--kc-dark); }

.site-footer { padding: 58px 0 24px; background: #07182d; color: #c5d0dc; }
.kc-footer-grid { display: grid; grid-template-columns: 1.35fr repeat(3, 1fr); gap: 30px; }
.site-footer h3, .site-footer h4 { color: #fff; }
.site-footer ul { list-style: none; padding: 0; margin: 0; }
.site-footer li + li { margin-top: 9px; }
.site-footer a { color: #c5d0dc; }
.site-footer a:hover { color: #fff; }
.kc-footer-bottom { margin-top: 34px; padding-top: 20px; border-top: 1px solid rgba(255,255,255,.1); display: flex; justify-content: space-between; gap: 20px; font-size: .88rem; }

.kc-404 { padding: 100px 0; text-align: center; }
.kc-404 strong { display: block; font-size: clamp(5rem, 15vw, 10rem); line-height: 1; color: #dcecff; }

input[type="text"], input[type="email"], input[type="url"], input[type="password"], input[type="search"], textarea, select {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--kc-border);
  border-radius: 10px;
  background: #fff;
}
input:focus, textarea:focus, select:focus { outline: 2px solid rgba(11,99,206,.18); border-color: var(--kc-primary); }
button, input[type="submit"] { border: 0; }

@media (max-width: 960px) {
  .kc-nav-toggle { display: block; }
  .primary-navigation {
    display: none;
    position: absolute;
    left: 16px;
    right: 16px;
    top: 76px;
    padding: 18px;
    border: 1px solid var(--kc-border);
    border-radius: 16px;
    background: #fff;
    box-shadow: var(--kc-shadow);
  }
  .primary-navigation.is-open { display: block; }
  .primary-navigation ul { display: block; }
  .primary-navigation li + li { margin-top: 12px; }
  .primary-navigation .sub-menu { position: static; display: block; box-shadow: none; border: 0; padding: 10px 0 0 16px; }
  .kc-header-cta { display: none; }
  .kc-hero-grid, .kc-cta-box, .kc-content-grid { grid-template-columns: 1fr; }
  .kc-grid-3 { grid-template-columns: repeat(2, 1fr); }
  .kc-stats-grid { grid-template-columns: repeat(2, 1fr); }
  .kc-footer-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
  .kc-hero { padding-top: 64px; }
  .kc-grid-3, .kc-metric-grid, .kc-stats-grid, .kc-footer-grid { grid-template-columns: 1fr; }
  .kc-pricing-card.is-featured { transform: none; }
  .kc-cta-box { padding: 30px 24px; }
  .kc-footer-bottom { flex-direction: column; }
  .kc-site-tagline { display: none; }
}