/*
Theme Name: Standalone LMS Theme
Theme URI: https://github.com/standalone-lms/standalone-lms-theme
Author: Standalone LMS Team
Author URI: https://standalone-lms.org
Description: Modern, distraction-free, professional WordPress theme engineered natively for the Standalone LMS plugin. Supports course catalog, learning player, student dashboard, candidate registration, and visual course builder without any page builder dependency.
Version: 1.0.0
Requires at least: 6.0
Tested up to: 6.7
Requires PHP: 7.4
License: GPLv2 or later
License URI: https://www.gnu.org/licenses/gpl-2.0.html
Text Domain: standalone-lms-theme
Tags: education, e-learning, lms, responsive-layout, custom-menu, full-width-template
*/

/* Reset & CSS Custom Properties (Theme Design Tokens) */
:root {
  --lms-font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --lms-font-heading: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --lms-primary: #2563eb;
  --lms-primary-hover: #1d4ed8;
  --lms-primary-light: #eff6ff;
  --lms-primary-border: #bfdbfe;
  --lms-accent: #0284c7;
  --lms-success: #16a34a;
  --lms-success-light: #f0fdf4;
  --lms-warning: #d97706;
  --lms-warning-light: #fffbeb;
  --lms-danger: #dc2626;
  --lms-danger-light: #fef2f2;
  --lms-dark: #0f172a;
  --lms-slate-800: #1e293b;
  --lms-slate-700: #334155;
  --lms-slate-600: #475569;
  --lms-slate-500: #64748b;
  --lms-slate-400: #94a3b8;
  --lms-slate-200: #e2e8f0;
  --lms-slate-100: #f1f5f9;
  --lms-slate-50: #f8fafc;
  --lms-radius-sm: 6px;
  --lms-radius-md: 10px;
  --lms-radius-lg: 14px;
  --lms-radius-full: 9999px;
  --lms-shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --lms-shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.08), 0 2px 4px -2px rgba(0, 0, 0, 0.04);
  --lms-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.04);
  --lms-container-max: 1240px;
}

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

body {
  margin: 0;
  padding: 0;
  font-family: var(--lms-font-sans);
  color: var(--lms-slate-800);
  background-color: var(--lms-slate-50);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--lms-font-heading);
  color: var(--lms-dark);
  font-weight: 700;
  line-height: 1.25;
  margin-top: 0;
}

a {
  color: var(--lms-primary);
  text-decoration: none;
  transition: color 0.15s ease;
}

a:hover {
  color: var(--lms-primary-hover);
}

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

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

/* Buttons */
.lms-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  font-size: 14px;
  font-weight: 600;
  border-radius: var(--lms-radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.15s ease;
  text-decoration: none;
  line-height: 1.4;
  white-space: nowrap;
}

.lms-btn-primary {
  background-color: var(--lms-primary);
  color: #ffffff !important;
}

.lms-btn-primary:hover {
  background-color: var(--lms-primary-hover);
  color: #ffffff !important;
}

.lms-btn-secondary {
  background-color: #ffffff;
  color: var(--lms-slate-700) !important;
  border-color: var(--lms-slate-200);
}

.lms-btn-secondary:hover {
  background-color: var(--lms-slate-100);
  color: var(--lms-dark) !important;
}

.lms-btn-success {
  background-color: var(--lms-success);
  color: #ffffff !important;
}

.lms-btn-success:hover {
  background-color: #15803d;
  color: #ffffff !important;
}

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

.lms-btn-outline-primary:hover {
  background-color: var(--lms-primary-light);
  border-color: var(--lms-primary);
}

.lms-btn-lg {
  padding: 14px 28px;
  font-size: 16px;
  border-radius: var(--lms-radius-md);
}

.lms-btn-sm {
  padding: 6px 12px;
  font-size: 12px;
}

/* Badges */
.lms-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 10px;
  font-size: 12px;
  font-weight: 600;
  border-radius: var(--lms-radius-full);
}

.lms-badge-primary {
  background: var(--lms-primary-light);
  color: var(--lms-primary);
}

.lms-badge-success {
  background: var(--lms-success-light);
  color: var(--lms-success);
}

.lms-badge-warning {
  background: var(--lms-warning-light);
  color: var(--lms-warning);
}

.lms-badge-slate {
  background: var(--lms-slate-100);
  color: var(--lms-slate-600);
}

/* Progress bar */
.lms-progress-wrap {
  width: 100%;
  background: var(--lms-slate-200);
  border-radius: var(--lms-radius-full);
  height: 8px;
  overflow: hidden;
}

.lms-progress-bar {
  height: 100%;
  background: var(--lms-primary);
  border-radius: var(--lms-radius-full);
  transition: width 0.3s ease;
}

.lms-progress-bar.is-completed {
  background: var(--lms-success);
}

/* Header & Navigation */
.lms-site-header {
  background: #ffffff;
  border-bottom: 1px solid var(--lms-slate-200);
  position: sticky;
  top: 0;
  z-index: 40;
  box-shadow: var(--lms-shadow-sm);
}

.lms-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  height: auto;
  padding: 10px 0;
  gap: 16px;
}

.lms-logo-group {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  flex-shrink: 0;
}

.lms-logo-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, #2563eb, #1d4ed8);
  border-radius: var(--lms-radius-md);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 18px;
  box-shadow: 0 4px 6px -1px rgba(37, 99, 235, 0.3);
}

.lms-logo-text {
  font-size: 19px;
  font-weight: 800;
  color: var(--lms-dark);
  letter-spacing: -0.02em;
}

.lms-logo-subtitle {
  font-size: 11px;
  color: var(--lms-slate-500);
  font-weight: 500;
  display: block;
}

.lms-main-nav {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}

/* Dropdown Navigation Menu (Admin Web pages in nav) */
.lms-nav-dropdown-wrapper {
  position: relative;
  display: inline-block;
}

.lms-nav-dropdown-menu {
  display: none !important;
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  min-width: 260px;
  background: #ffffff;
  border: 1px solid var(--lms-slate-200);
  border-radius: var(--lms-radius-md);
  box-shadow: 0 14px 30px -4px rgba(0, 0, 0, 0.15), 0 8px 12px -6px rgba(0, 0, 0, 0.08);
  padding: 8px 0;
  z-index: 1000;
  max-height: 480px;
  overflow-y: auto;
}

.lms-nav-dropdown-menu.is-open {
  display: block !important;
}

.lms-nav-dropdown-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 9px 18px;
  font-size: 13px;
  color: var(--lms-slate-700);
  text-decoration: none;
  transition: all 0.15s ease;
}

.lms-nav-dropdown-item:hover {
  background: #f8fafc;
  color: var(--lms-primary);
  padding-left: 22px;
}

.lms-nav-link {
  font-size: 14px;
  font-weight: 600;
  color: var(--lms-slate-600);
  transition: color 0.15s ease;
  position: relative;
  padding: 6px 0;
}

.lms-nav-link:hover,
.lms-nav-link.is-active {
  color: var(--lms-primary);
}

.lms-nav-link.is-active::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--lms-primary);
  border-radius: 2px;
}

.lms-header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* Hero Section */
.lms-hero {
  background: linear-gradient(180deg, #ffffff 0%, var(--lms-slate-50) 100%);
  border-bottom: 1px solid var(--lms-slate-200);
  padding: 64px 0 72px;
}

.lms-hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 48px;
  align-items: center;
}

.lms-hero-title {
  font-size: 42px;
  font-weight: 800;
  line-height: 1.18;
  letter-spacing: -0.025em;
  color: var(--lms-dark);
  margin-bottom: 20px;
}

.lms-hero-title span {
  color: var(--lms-primary);
}

.lms-hero-lead {
  font-size: 18px;
  color: var(--lms-slate-600);
  line-height: 1.6;
  margin-bottom: 32px;
}

.lms-hero-actions {
  display: flex;
  gap: 16px;
  align-items: center;
  flex-wrap: wrap;
  margin-bottom: 32px;
}

.lms-hero-card {
  background: #ffffff;
  border: 1px solid var(--lms-slate-200);
  border-radius: var(--lms-radius-lg);
  padding: 28px;
  box-shadow: var(--lms-shadow-md);
}

/* Course Cards */
.lms-courses-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 28px;
}

.lms-course-card {
  background: #ffffff;
  border: 1px solid var(--lms-slate-200);
  border-radius: var(--lms-radius-md);
  overflow: hidden;
  box-shadow: var(--lms-shadow-sm);
  display: flex;
  flex-direction: column;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.lms-course-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--lms-shadow-md);
}

.lms-course-thumb {
  width: 100%;
  height: 200px;
  position: relative;
  background: var(--lms-slate-100);
  overflow: hidden;
}

.lms-course-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.lms-course-body {
  padding: 22px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.lms-course-title {
  font-size: 18px;
  font-weight: 700;
  margin: 0 0 10px;
  color: var(--lms-dark);
}

.lms-course-desc {
  font-size: 14px;
  color: var(--lms-slate-600);
  line-height: 1.55;
  margin-bottom: 18px;
  flex: 1;
}

.lms-course-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 16px;
  border-top: 1px solid var(--lms-slate-100);
  margin-top: auto;
}

.lms-course-price {
  font-size: 18px;
  font-weight: 800;
  color: var(--lms-dark);
}

/* Learning Player */
.lms-player-container {
  display: grid;
  grid-template-columns: 340px 1fr;
  min-height: calc(100vh - 72px);
  background: #ffffff;
}

.lms-player-sidebar {
  background: var(--lms-slate-50);
  border-right: 1px solid var(--lms-slate-200);
  padding: 24px;
  overflow-y: auto;
  max-height: calc(100vh - 72px);
  position: sticky;
  top: 72px;
}

.lms-player-content {
  padding: 40px;
  max-width: 960px;
  margin: 0 auto;
  width: 100%;
}

/* Footer */
.lms-site-footer {
  background: var(--lms-dark);
  color: var(--lms-slate-400);
  padding: 56px 0 28px;
  border-top: 1px solid var(--lms-slate-800);
  margin-top: 64px;
}

.lms-footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 40px;
  margin-bottom: 48px;
}

.lms-footer-title {
  color: #ffffff;
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 18px;
}

.lms-footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
}

.lms-footer-links li {
  margin-bottom: 10px;
}

.lms-footer-links a {
  color: var(--lms-slate-400);
  font-size: 14px;
  transition: color 0.15s ease;
}

.lms-footer-links a:hover {
  color: #ffffff;
}

.lms-footer-bottom {
  border-top: 1px solid var(--lms-slate-800);
  padding-top: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
}

/* Responsive adjustments */
@media (max-width: 991px) {
  .lms-hero-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .lms-player-container {
    grid-template-columns: 1fr;
  }
  .lms-player-sidebar {
    position: static;
    max-height: none;
  }
  .lms-footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 640px) {
  .lms-hero-title {
    font-size: 30px;
  }
  .lms-main-nav {
    display: none;
  }
  .lms-footer-grid {
    grid-template-columns: 1fr;
  }
  .lms-footer-bottom {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }
}