/*
  Global Stylesheet for Lanka eCity (Pvt) Ltd
  Purpose:
    - Define brand variables, typography, spacing, and utilities
    - Provide responsive grid/layout, components (header, footer, cards, buttons)
    - Ensure accessibility with focus-visible states and contrast
  Notes:
    - Colors: Navy #0A1F44, Cyan #00CFFD, White #FFFFFF
    - Fonts: Poppins (headings), Roboto (body)
*/

:root {
  --navy: #0A1F44;
  --navy-900: #071530;
  --cyan: #00CFFD;
  --white: #FFFFFF;
  --muted: #8BA1C7;
  --bg: #071530;
  --bg-alt: #0c285f;
  --surface: #0F244E;
  --surface-2: #102956;
  --border: rgba(255,255,255,0.08);

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 22px;

  --shadow-1: 0 6px 18px rgba(0,0,0,0.25);
  --shadow-2: 0 10px 30px rgba(0,0,0,0.35);

  --container: 1120px;
  --header-h: 72px;

  --space-1: 6px;
  --space-2: 10px;
  --space-3: 14px;
  --space-4: 18px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 42px;
  --space-8: 56px;
  --space-9: 80px;
}

/* Base Reset */
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
html, body {
  margin: 0;
  padding: 0;
  color: var(--white);
  background: linear-gradient(180deg, var(--bg) 0%, var(--surface) 100%);
  font-family: Roboto, system-ui, -apple-system, Segoe UI, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
  line-height: 1.6;
}
img { max-width: 100%; display: block; }
a { color: var(--cyan); text-decoration: none; }
a:hover { text-decoration: underline; }
p { margin: 0 0 var(--space-4); color: #dbe7ff; }
.lead { font-size: 1.125rem; color: #dbe7ff; }
small { color: var(--muted); }
.muted { color: var(--muted); }
ul { padding-left: 1.2em; }

.h1, .h2, .h3, .h4, .h5 {
  font-family: Poppins, system-ui, -apple-system, Segoe UI, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
  margin: 0 0 var(--space-3);
  letter-spacing: 0.2px;
}
.h1 { font-size: 2.125rem; line-height: 1.15; }
.h2 { font-size: 1.75rem; }
.h3 { font-size: 1.375rem; }
.h4 { font-size: 1.1rem; }
.h5 { font-size: 1rem; text-transform: uppercase; letter-spacing: 0.5px; color: var(--muted); }

.container {
  width: 100%;
  max-width: var(--container);
  padding: 0 var(--space-5);
  margin: 0 auto;
}

/* Skip link */
.skip-link {
  position: absolute; left: -999px; top: -999px;
}
.skip-link:focus {
  left: var(--space-5); top: var(--space-5);
  background: var(--cyan); color: #001020; padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
}

/* Sections */
.section {
  padding: var(--space-8) 0;
  scroll-margin-top: calc(var(--header-h) + 12px);
}
.section-alt {
  background: linear-gradient(180deg, var(--surface) 0%, var(--surface-2) 100%);
}
.page-hero {
  padding-top: calc(var(--space-9) - var(--space-4));
  padding-bottom: var(--space-6);
}

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 1000;
  backdrop-filter: blur(10px);
  background: rgba(10,31,68,0.75);
  border-bottom: 1px solid var(--border);
  height: var(--header-h);
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: var(--header-h);
}
.logo { display: inline-flex; align-items: center; gap: 10px; }
.nav-toggle {
  display: inline-flex; flex-direction: column; gap: 4px;
  background: transparent; border: 0; padding: 6px; border-radius: 8px;
  cursor: pointer; color: var(--white);
}
.nav-toggle:focus-visible { outline: 2px solid var(--cyan); outline-offset: 2px; }
.nav-toggle .bar { display: block; width: 22px; height: 2px; background: var(--white); }

.nav {
  position: fixed; inset: var(--header-h) 0 auto 0; height: calc(100vh - var(--header-h));
  background: rgba(10,31,68,0.98); transform: translateY(-2%); opacity: 0; pointer-events: none;
  transition: opacity .25s ease, transform .25s ease; padding: var(--space-5);
}
.nav.open { opacity: 1; transform: translateY(0); pointer-events: auto; }
.nav .nav-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 16px; }
.nav .nav-list a {
  color: var(--white); text-decoration: none; font-weight: 500; padding: 6px 10px; border-radius: 8px;
}
.nav .nav-list .btn { display: inline-block; }

.whatsapp-cta {
  display: none;
  align-items: center; gap: 8px; text-decoration: none;
  border: 1px solid var(--border); padding: 6px 10px; border-radius: 999px;
  margin-left: auto;
}

/* Desktop Nav */
@media (min-width: 960px) {
  .nav { position: static; height: auto; background: transparent; opacity: 1; pointer-events: auto; transform: none; padding: 0; }
  .nav .nav-list { display: flex; gap: 20px; align-items: center; }
  .nav-toggle { display: none; }
  .whatsapp-cta { display: inline-flex; }
}
.is-active > a { color: var(--cyan) !important; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  padding: 10px 16px; border-radius: 12px; border: 1px solid var(--border);
  color: var(--white); background: rgba(255,255,255,0.06); text-decoration: none; font-weight: 600;
  cursor: pointer; transition: transform .05s ease, background .2s ease, border-color .2s ease;
}
.btn:hover { background: rgba(255,255,255,0.12); text-decoration: none; }
.btn:active { transform: translateY(1px); }
.btn:focus-visible { outline: 2px solid var(--cyan); outline-offset: 2px; }
.btn-cyan { color: #001020; background: var(--cyan); border-color: transparent; }
.btn-outline { background: transparent; border-color: var(--cyan); color: var(--cyan); }
.btn-link { background: transparent; border-color: transparent; color: var(--cyan); padding-left: 0; padding-right: 0; }

.chip {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(255,255,255,0.08); color: var(--white); border: 1px solid var(--border);
  padding: 8px 12px; border-radius: 999px; cursor: pointer;
}
.chip.is-active { background: var(--cyan); color: #001020; border-color: transparent; }

/* Hero */
.hero-inner {
  display: grid; gap: var(--space-6);
  grid-template-columns: 1fr; align-items: center;
}
.hero-actions { display: flex; gap: 12px; margin: var(--space-4) 0; flex-wrap: wrap; }
.hero-bullets { margin: var(--space-3) 0 0; padding-left: 1.2em; color: #cfe2ff; }
.hero-media img { width: 100%; height: auto; }

@media (min-width: 960px) {
  .hero-inner { grid-template-columns: 1.2fr 1fr; }
}

/* Cards, grids */
.grid { display: grid; gap: var(--space-5); }
.grid.cols-2 { grid-template-columns: 1fr; }
.cards-2 { grid-template-columns: 1fr; }
.cards-3 { grid-template-columns: 1fr; }

@media (min-width: 720px) {
  .grid.cols-2 { grid-template-columns: 1fr 1fr; align-items: center; }
  .cards-2 { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 960px) {
  .cards-3 { grid-template-columns: repeat(3, 1fr); }
}

.card {
  background: rgba(255,255,255,0.04); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: var(--space-5); box-shadow: var(--shadow-1);
}
.card-body { margin-top: var(--space-3); }
.icon { width: 56px; height: 56px; display: grid; place-items: center; background: rgba(0,207,253,0.15); border-radius: 14px; }
.team { text-align: center; }
.team .avatar { width: 132px; height: 132px; border-radius: 50%; margin: 0 auto var(--space-3); object-fit: cover; }
.testimonial blockquote { margin: 0 0 10px; font-style: italic; color: #e8f2ff; }

/* Pricing */
.price { text-align: left; }
.price .price-tag { font-size: 1.4rem; font-weight: 700; color: var(--cyan); }
.price.featured { border-color: var(--cyan); box-shadow: var(--shadow-2); }

/* Slider */
.slider { position: relative; }
.slider-track {
  display: grid; grid-auto-flow: column; gap: var(--space-5);
  overflow-x: auto; scroll-snap-type: x mandatory; padding-bottom: var(--space-2);
}
.slide { min-width: 320px; scroll-snap-align: center; }
.slider-btn {
  position: absolute; top: 50%; transform: translateY(-50%); z-index: 2;
  background: rgba(255,255,255,0.08); border: 1px solid var(--border); color: var(--white);
  width: 38px; height: 38px; border-radius: 10px; cursor: pointer;
}
.slider-btn.prev { left: -6px; }
.slider-btn.next { right: -6px; }

/* Timeline */
.timeline { list-style: none; margin: 0; padding: 0; border-left: 2px solid var(--border); padding-left: 16px; }
.timeline li { margin-bottom: var(--space-3); }

/* Forms */
.form-field { margin-bottom: var(--space-4); }
label { display: block; margin-bottom: 6px; font-weight: 600; }
input[type="text"], input[type="email"], input[type="tel"], input[type="file"], textarea {
  width: 100%; padding: 12px 14px; border-radius: 12px; border: 1px solid var(--border);
  background: rgba(255,255,255,0.06); color: var(--white);
}
input::placeholder, textarea::placeholder { color: #b3c6ea; }
input:focus-visible, textarea:focus-visible { outline: 2px solid var(--cyan); outline-offset: 2px; }
.form-msg { min-height: 1.2em; margin-top: 6px; }

.newsletter { display: grid; gap: var(--space-3); align-items: center; grid-template-columns: 1fr; }
.newsletter-form { display: flex; gap: 10px; flex-wrap: wrap; }
.newsletter-form input { flex: 1 1 240px; }

/* Footer */
.site-footer { border-top: 1px solid var(--border); margin-top: var(--space-8); padding-top: var(--space-6); background: rgba(10,31,68,0.65); }
.footer-grid { display: grid; gap: var(--space-6); grid-template-columns: 1fr; }
.footer-bottom { border-top: 1px solid var(--border); padding: var(--space-3) 0; margin-top: var(--space-5); color: var(--muted); }
.social { display: flex; gap: 10px; }
.social-btn { display: inline-flex; width: 36px; height: 36px; align-items: center; justify-content: center; border-radius: 999px; background: rgba(255,255,255,0.08); border: 1px solid var(--border); }
.mt-2 { margin-top: var(--space-2); }

/* Layout helpers */
.row { display: flex; align-items: center; }
.row.gap { gap: 12px; }
.radius-md { border-radius: var(--radius-md); }
.radius-xl { border-radius: var(--radius-xl); }
.shadow-lg { box-shadow: var(--shadow-2); }

/* Filters */
.filters { display: flex; gap: 10px; flex-wrap: wrap; }
.mt-1 { margin-top: var(--space-1); }
.mt-2 { margin-top: var(--space-2); }

/* Modals */
.modal[hidden] { display: none !important; }
.modal { position: fixed; inset: 0; display: grid; place-items: center; z-index: 2000; }
.modal-backdrop {
  position: absolute; inset: 0; background: rgba(0,0,0,0.6); backdrop-filter: blur(2px);
}
.modal-content {
  position: relative; background: rgba(16,38,80,0.98); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: var(--space-5); max-width: 860px; width: calc(100% - 32px);
  box-shadow: var(--shadow-2);
}
.modal-close {
  position: absolute; right: 12px; top: 12px; border: 0; background: transparent; color: var(--white);
  font-size: 28px; cursor: pointer;
}

/* Lists */
.list-plain { list-style: none; margin: 0; padding: 0; }
.check-list { list-style: none; padding-left: 0; }
.check-list li {
  padding-left: 28px; position: relative; margin: 8px 0; color: #dbe7ff;
}
.check-list li::before {
  content: "✓"; position: absolute; left: 0; top: 0; color: var(--cyan); font-weight: 700;
}

/* Article */
.article img { margin: var(--space-5) 0; }
.article-body h2 { margin-top: var(--space-5); }
.share { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.article-nav { margin-top: var(--space-5); }

/* Map */
.map iframe { border: 0; border-radius: var(--radius-xl); }

/* Accessibility */
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
:focus-visible { outline: 2px solid var(--cyan); outline-offset: 2px; }

/* Offline page */
body.offline { background: var(--navy); }
body.offline .container { text-align: center; }

/* Responsive tweaks */
@media (min-width: 720px) {
  .newsletter { grid-template-columns: 1.2fr 1fr; }
}