/* =========================================================
   🌐 KAALARATHAM — GLOBAL STYLES (FINAL OPTIMIZED VERSION)
   Author: Muthusamy LR
   Updated: November 2025
   ========================================================= */

/* =========================================================
   🌗 THEME VARIABLES (LIGHT / DARK)
   ========================================================= */

/* 🌞 Light Mode (Default) */
:root {
  --bg-color: #f8f9fa;
  --text-color: #212529;
  --card-bg: #ffffff;
  --navbar-bg: #ffffff;
  --nav-text-color: #212529;
  --link-color: #0d6efd;
  --btn-outline: rgba(0, 0, 0, 0.15);
  --ribbon-green: #28a745;
  --ribbon-red: #dc3545;
  --progress-green: #28a745;
  --shadow-base: rgba(0, 0, 0, 0.1);
  --shadow-strong: rgba(0, 0, 0, 0.25);
  --border-color: rgba(0, 0, 0, 0.08);
  --theme-bg: #ffffff;
  --theme-text: #212529;
  --theme-border: rgba(0, 0, 0, 0.08);
}

/* 🌙 Dark Mode */
html[data-theme="dark"] {
  --bg-color: #121212;
  --text-color: #e4e4e4;
  --card-bg: #1f1f1f;
  --navbar-bg: #141b22;
  --nav-text-color: #eaeaea;
  --link-color: #66b2ff;
  --btn-outline: rgba(255, 255, 255, 0.4);
  --ribbon-green: #20c997;
  --ribbon-red: #f03e3e;
  --progress-green: #20c997;
  --shadow-base: rgba(255, 255, 255, 0.05);
  --shadow-strong: rgba(255, 255, 255, 0.12);
  --border-color: rgba(255, 255, 255, 0.1);
  --theme-bg: #1f1f1f;
  --theme-text: #e4e4e4;
  --theme-border: rgba(255, 255, 255, 0.1);
}

/* =========================================================
   🌈 GLOBAL BASE STYLES
   ========================================================= */
html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', sans-serif;
  background-color: var(--bg-color);
  color: var(--text-color);
  transition: background-color 0.4s ease, color 0.4s ease;
  min-height: 100vh;
}

.container { max-width: 1200px; }

/* =========================================================
   🧭 NAVBAR
   ========================================================= */
.navbar {
  padding: 0.75rem 1.25rem;
  background: var(--navbar-bg);
  border-bottom: 1px solid var(--border-color);
  transition: all 0.4s ease;
}

.navbar .navbar-brand,
.navbar .nav-link,
.navbar .dropdown-item {
  color: var(--nav-text-color) !important;
  transition: color 0.3s ease, opacity 0.25s ease;
}

.navbar .nav-link:hover,
.navbar .dropdown-item:hover {
  color: var(--link-color) !important;
  opacity: 0.85;
}

/* =========================================================
   🌗 THEME TOGGLE BUTTON
   ========================================================= */
#themeToggleBtn {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 1px solid var(--btn-outline);
  background: transparent;
  color: var(--nav-text-color);
  font-size: 1.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.35s ease;
  position: relative;
  box-shadow: 0 0 4px var(--shadow-base);
}

#themeToggleBtn:hover {
  transform: scale(1.08);
  box-shadow: 0 0 8px var(--shadow-strong);
}

#themeToggleBtn .moon,
#themeToggleBtn .sun {
  position: absolute;
  opacity: 0;
  transform: scale(0.8) rotate(-30deg);
  transition: all 0.4s ease;
}

#themeToggleBtn .moon.active,
#themeToggleBtn .sun.active {
  opacity: 1;
  transform: scale(1) rotate(0deg);
}

/* =========================================================
   🧩 TEXT & HEADINGS
   ========================================================= */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  color: var(--text-color);
  transition: color 0.3s ease;
}

p, span, li { color: var(--text-color); }

/* =========================================================
   💼 COURSE CARDS
   ========================================================= */
.course-card {
  overflow: hidden;
  border-radius: 0.75rem;
  background-color: var(--card-bg);
  transition: all 0.3s ease;
  box-shadow: 0 2px 8px var(--shadow-base);
  border: 1px solid var(--border-color);
}

.course-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 5px 18px var(--shadow-strong);
}

/* =========================================================
   🎖 RIBBON BADGES
   ========================================================= */
.ribbon {
  position: absolute;
  top: 12px;
  left: -5px;
  padding: 4px 10px;
  color: #fff;
  font-size: 0.8rem;
  font-weight: 500;
  border-top-right-radius: 6px;
  border-bottom-right-radius: 6px;
  box-shadow: 0 2px 5px rgba(0,0,0,0.25);
  z-index: 10;
}

.ribbon.bg-success { background: var(--ribbon-green); }
.ribbon.bg-danger { background: var(--ribbon-red); }

/* =========================================================
   🎨 BUTTONS
   ========================================================= */
.btn-outline-primary {
  border-width: 1.5px;
  font-weight: 500;
  transition: all 0.25s ease;
}
.btn-outline-primary:hover {
  background-color: var(--link-color);
  color: #fff;
}

.btn-outline-light {
  border-color: var(--btn-outline);
  color: var(--nav-text-color);
}
.btn-outline-light:hover {
  background-color: var(--card-bg);
  box-shadow: 0 0 5px var(--shadow-base);
}

/* =========================================================
   📈 PROGRESS BAR
   ========================================================= */
#progressBar { transition: width 0.5s ease; }
#progressText { font-size: 0.85rem; font-weight: 500; }

/* =========================================================
   🔵 FLOATING PROGRESS CIRCLE
   ========================================================= */
#floatingProgress {
  position: fixed;
  bottom: 20px;
  right: 25px;
  width: 60px;
  height: 60px;
  z-index: 9999;
  cursor: pointer;
  background: color-mix(in srgb, var(--card-bg) 85%, transparent);
  border-radius: 50%;
  backdrop-filter: blur(4px);
  box-shadow: 0 2px 10px var(--shadow-base);
  transition: all 0.3s ease;
}
#floatingProgress:hover {
  transform: scale(1.08);
  box-shadow: 0 3px 14px var(--shadow-strong);
}

.circle-bg {
  fill: none;
  stroke: var(--border-color);
  stroke-width: 3.8;
}
.circle {
  fill: none;
  stroke-width: 3.8;
  stroke-linecap: round;
  stroke: var(--progress-green);
  transition: stroke-dasharray 0.6s ease, stroke 0.3s ease;
}
.percentage {
  fill: var(--text-color);
  font-family: 'Inter', sans-serif;
  font-size: 0.5em;
  text-anchor: middle;
  font-weight: 600;
}

/* =========================================================
   🧰 UTILITY COLORS
   ========================================================= */
.text-success { color: var(--ribbon-green) !important; }
.text-danger { color: var(--ribbon-red) !important; }
a, button { transition: all 0.25s ease-in-out; color: var(--link-color); }
a:hover { opacity: 0.8; }

/* =========================================================
   🦶 FOOTER
   ========================================================= */
.footer {
  background: var(--card-bg);
  color: var(--text-color);
  border-top: 1px solid var(--border-color);
  transition: all 0.4s ease;
}

/* =========================================================
   🟢 ALERTS & MODALS
   ========================================================= */
.alert-custom,
.alert-theme {
  background: var(--card-bg);
  color: var(--text-color);
  border: 1px solid var(--border-color);
  transition: all 0.3s ease;
}

.modal-content {
  background: var(--theme-bg);
  color: var(--theme-text);
  border: 1px solid var(--theme-border);
  box-shadow: 0 8px 32px rgba(0,0,0,0.25);
  transition: all 0.3s ease-in-out;
}

/* Solid modal background */
.glassy-modal {
  background: rgba(255, 255, 255, 1);
  border: 1px solid rgba(255,255,255,0.25);
  color: var(--theme-text);
}
html[data-theme='dark'] .glassy-modal {
  background: rgba(20,20,20,1);
  border: 1px solid rgba(255,255,255,0.1);
}

/* Smooth modal animations */
.modal.fade .modal-dialog {
  transform: translateY(-15px) scale(0.97);
  transition: transform 0.3s ease, opacity 0.3s ease;
}
.modal.show .modal-dialog {
  transform: translateY(0) scale(1);
}

/* Themed close button */
.theme-close {
  opacity: 0.7;
  transition: all 0.3s ease;
}
.theme-close:hover {
  opacity: 1;
  transform: rotate(90deg);
}

/* =========================================================
   📱 RESPONSIVE
   ========================================================= */
@media (max-width: 768px) {
  .course-card img { height: 180px !important; }
  #floatingProgress { width: 50px; height: 50px; bottom: 15px; right: 15px; }
}
@media (max-width: 576px) {
  .card-body h5 { font-size: 1rem; }
  .ribbon { font-size: 0.7rem; }
}
/* =========================================================
   🧾 THEME-AWARE FORM CONTROLS (Dark / Light Mode)
   ========================================================= */

.theme-input,
.form-control,
.form-select,
textarea.form-control,
input[type="text"],
input[type="email"],
input[type="number"],
input[type="file"],
select {
  background-color: var(--card-bg) !important;
  color: var(--text-color) !important;
  border: 1px solid var(--border-color) !important;
  transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}

.form-control:focus,
.form-select:focus,
.theme-input:focus {
  background-color: var(--card-bg) !important;
  color: var(--text-color) !important;
  border-color: var(--link-color) !important;
  box-shadow: 0 0 0 0.2rem color-mix(in srgb, var(--link-color) 25%, transparent);
}

textarea.form-control {
  resize: vertical;
}

.form-label,
label {
  color: var(--text-color) !important;
  transition: color 0.3s ease;
}

/* ✅ Checkbox & Radio Inputs */
.form-check-input {
  background-color: var(--card-bg);
  border: 1px solid var(--border-color);
  transition: all 0.3s ease;
}

.form-check-input:checked {
  background-color: var(--link-color);
  border-color: var(--link-color);
}

.form-check-label {
  color: var(--text-color);
  transition: color 0.3s ease;
}

/* ✅ File Input (custom look) */
input[type="file"]::file-selector-button {
  background-color: var(--card-bg);
  color: var(--text-color);
  border: 1px solid var(--border-color);
  border-radius: 0.25rem;
  padding: 0.35rem 0.75rem;
  transition: all 0.3s ease;
}

input[type="file"]::file-selector-button:hover {
  background-color: var(--link-color);
  color: #fff;
}

/* =========================================================
   📋 THEME-AWARE TABLES
   ========================================================= */
.theme-table {
  background-color: var(--card-bg);
  color: var(--text-color);
  border: 1px solid var(--border-color);
}

.theme-table th,
.theme-table td {
  border-color: var(--border-color);
  transition: background-color 0.3s ease, color 0.3s ease;
}

.theme-table tbody tr:hover {
  background-color: color-mix(in srgb, var(--link-color) 10%, var(--card-bg));
}

.theme-table thead {
  background-color: color-mix(in srgb, var(--card-bg) 95%, transparent);
  color: var(--text-color);
}

/* =========================================================
   🧾 THEME-AWARE FORMS & HEADERS (Dark / Light Mode)
   ========================================================= */

/* ✅ Card Containers (like Add / Edit Course panels) */
.theme-card,
.card {
  background-color: var(--card-bg) !important;
  color: var(--text-color) !important;
  border: 1px solid var(--border-color) !important;
  transition: background-color 0.4s ease, color 0.4s ease, border-color 0.4s ease;
  box-shadow: 0 2px 10px var(--shadow-base);
}

/* ✅ Card Headers (like “Add New Course”, “SEO Settings”, etc.) */
.card-header,
.theme-card .card-header {
  background-color: var(--card-bg) !important;
  color: var(--text-color) !important;
  border-bottom: 1px solid var(--border-color) !important;
  transition: all 0.4s ease;
}

/* ✅ Form Labels, Headings, Subtitles */
.form-label,
.card-header strong,
.card-header h5,
h6, label {
  color: var(--text-color) !important;
  transition: color 0.3s ease;
}

/* ✅ Descriptive small text */
small,
.text-muted {
  color: var(--text-theme-secondary, rgba(150, 150, 150, 0.8)) !important;
  transition: color 0.3s ease;
}

/* ✅ Textareas & Inputs (fallback if .theme-input missing) */
textarea,
input,
select {
  background-color: var(--card-bg) !important;
  color: var(--text-color) !important;
  border: 1px solid var(--border-color) !important;
}

/* ✅ Buttons inside forms */
.btn {
  transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}

/* =========================================================
   🧾 THEME-AWARE FORMS, HEADERS & TEXTAREAS
   ========================================================= */

/* ✅ Card container (consistent with theme) */
.theme-card,
.card {
  background-color: var(--card-bg) !important;
  color: var(--text-color) !important;
  border: 1px solid var(--border-color) !important;
  transition: background-color 0.4s ease, color 0.4s ease, border-color 0.4s ease;
  box-shadow: 0 2px 10px var(--shadow-base);
}

/* ✅ Card headers (Add / Edit panels) */
.card-header,
.theme-card .card-header {
  background-color: var(--card-bg) !important;
  color: var(--text-color) !important;
  border-bottom: 1px solid var(--border-color) !important;
  transition: all 0.4s ease;
}

/* ✅ Title accent underline */
.card-header strong::after {
  content: '';
  display: block;
  width: 40px;
  height: 2px;
  margin-top: 4px;
  background-color: var(--link-color);
  border-radius: 2px;
}

/* ✅ Labels & Headings inside cards */
.form-label,
.card-header strong,
.card-header h5,
h6,
label {
  color: var(--text-color) !important;
  transition: color 0.3s ease;
}

/* ✅ Subtle text */
small,
.text-muted {
  color: var(--text-theme-secondary, rgba(150, 150, 150, 0.8)) !important;
  transition: color 0.3s ease;
}

/* =========================================================
   ✏️ Inputs & Textareas (different in light vs dark mode)
   ========================================================= */

/* 🌞 Light Mode — Keep textareas white for clarity */
:root textarea,
:root input,
:root select {
  background-color: #ffffff !important;
  color: var(--text-color) !important;
  border: 1px solid var(--border-color) !important;
}

/* 🌙 Dark Mode — Dark background and light text */
html[data-theme="dark"] textarea,
html[data-theme="dark"] input,
html[data-theme="dark"] select {
  background-color: var(--card-bg) !important;
  color: var(--text-color) !important;
  border: 1px solid var(--border-color) !important;
}

/* Focus glow (theme-colored) */
textarea:focus,
input:focus,
select:focus {
  outline: none;
  border-color: var(--link-color);
  box-shadow: 0 0 0 0.2rem color-mix(in srgb, var(--link-color) 25%, transparent);
  transition: all 0.3s ease;
}

/* Buttons */
.btn {
  transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}