/* ============================================================
   LESSONS PAGE – Free Lessons
   Full dark-mode aware, uses CSS variables from home.css
   ============================================================ */

/* Page wrapper */
.lessons-main {
  background: var(--bg-color);
  min-height: 100vh;
  padding: 2.5rem 0;
  transition: background-color 0.3s ease;
}

.lessons-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1.25rem;
}

/* ── Page Header ── */
.lessons-page-header {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  margin-bottom: 2.5rem;
}

@media (min-width: 768px) {
  .lessons-page-header {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }
}

.lessons-title-area h1 {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  color: var(--text-color);
  margin: 0;
}

.lessons-title-area h1 span {
  color: var(--primary-color);
}

.lessons-title-area p {
  color: var(--text-color);
  opacity: 0.6;
  margin: 0.5rem 0 0;
  font-size: 0.95rem;
}

/* ── Admin Add Lesson Form ── */
.lessons-admin-form {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 16px;
  padding: 1.5rem;
  width: 100%;
  box-shadow: 0 2px 12px rgba(0,0,0,0.05);
  transition: background 0.3s ease, border-color 0.3s ease;
}

@media (min-width: 768px) {
  .lessons-admin-form {
    width: 360px;
    flex-shrink: 0;
  }
}

.lessons-form-label {
  display: block;
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-color);
  opacity: 0.5;
  margin-bottom: 0.4rem;
}

.lessons-form-input {
  width: 100%;
  padding: 0.75rem 1rem;
  font-size: 0.875rem;
  background: var(--bg-color);
  border: 1.5px solid var(--card-border);
  border-radius: 10px;
  color: var(--text-color);
  outline: none;
  transition: border-color 0.2s ease, background 0.3s ease, color 0.3s ease;
  font-family: var(--font-main);
}

.lessons-form-input:focus {
  border-color: var(--primary-color);
}

.lessons-form-input::placeholder {
  color: var(--text-color);
  opacity: 0.4;
}

.lessons-form-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  width: 100%;
  padding: 0.75rem;
  background: var(--button-bg);
  color: #fff;
  font-weight: 700;
  font-size: 0.875rem;
  border: none;
  border-radius: 10px;
  cursor: pointer;
  margin-top: 0.75rem;
  font-family: var(--font-heading);
  transition: background 0.2s ease, box-shadow 0.2s ease;
  box-shadow: 0 4px 16px rgba(32, 109, 114, 0.2);
}

.lessons-form-btn:hover {
  background: var(--button-hover);
}

/* ── Lessons Grid ── */
.lessons-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 640px) {
  .lessons-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .lessons-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 1280px) {
  .lessons-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* ── Lesson Card ── */
.lesson-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  position: relative;
  transition:
    background 0.3s ease,
    border-color 0.3s ease,
    box-shadow 0.25s ease,
    transform 0.25s ease;
}

.lesson-card:hover {
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.12);
  transform: translateY(-3px);
}

[data-theme="dark"] .lesson-card:hover {
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.5);
}

/* Card link overlay */
.lesson-card-link {
  position: absolute;
  inset: 0;
  z-index: 0;
}

/* Thumbnail */
.lesson-thumb {
  position: relative;
  height: 176px;
  background: var(--card-border);
  overflow: hidden;
}

.lesson-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.lesson-card:hover .lesson-thumb img {
  transform: scale(1.07);
}

.lesson-thumb-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--card-border);
  color: var(--text-color);
  opacity: 0.4;
  font-size: 2.5rem;
}

/* Play overlay */
.lesson-play-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.22);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.lesson-card:hover .lesson-play-overlay {
  opacity: 1;
}

.lesson-play-btn {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: rgba(255,255,255,0.92);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ff0000;
  font-size: 1rem;
  box-shadow: 0 4px 20px rgba(0,0,0,0.3);
}

/* Card Body */
.lesson-card-body {
  padding: 1rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
  position: relative;
  z-index: 1;
  pointer-events: none;
}

.lesson-card-title {
  font-family: var(--font-heading);
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-color);
  margin: 0 0 0.5rem;
  line-height: 1.4;
  transition: color 0.2s ease;
}

.lesson-card:hover .lesson-card-title {
  color: var(--primary-color);
}

.lesson-card-meta {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: auto;
}

.lesson-card-meta i {
  color: #ff0000;
  font-size: 0.8rem;
}

.lesson-card-meta span {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-color);
  opacity: 0.5;
}

/* Admin delete button */
.lesson-delete-wrap {
  position: absolute;
  top: 0.5rem;
  right: 0.5rem;
  z-index: 20;
}

.lesson-delete-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255,255,255,0.92);
  border: 1px solid #e5e7eb;
  border-radius: 8px;
  width: 30px;
  height: 30px;
  cursor: pointer;
  color: #dc2626;
  font-size: 0.7rem;
  transition: background 0.2s, transform 0.2s;
  box-shadow: 0 2px 6px rgba(0,0,0,0.1);
}

.lesson-delete-btn:hover {
  background: #fff;
  transform: scale(1.1);
}

[data-theme="dark"] .lesson-delete-btn {
  background: rgba(22, 27, 34, 0.95);
  border-color: #30363d;
  color: #f87171;
}

[data-theme="dark"] .lesson-delete-btn:hover {
  background: #1c2128;
}

/* Empty state */
.lessons-empty {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  padding: 3rem 1.5rem;
  text-align: center;
  transition: background 0.3s ease, border-color 0.3s ease;
}

.lessons-empty h3 {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-color);
  margin: 0 0 0.5rem;
}

.lessons-empty p {
  font-size: 0.875rem;
  color: var(--text-color);
  opacity: 0.5;
  margin: 0;
}

/* ============================================================
   MOBILE NAV THEME DROPDOWN
   ============================================================ */

/* Replaces the plain button on mobile with a styled <select>-like row */
.nav-theme-dropdown-li {
  display: none; /* hidden on desktop */
  width: 100%;
}

@media (max-width: 1024px) {
  .nav-theme-dropdown-li {
    display: flex;
    justify-content: center;
    width: 100%;
  }
}

.nav-theme-select-wrap {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  width: 100%;
  background: rgba(32, 109, 114, 0.06);
  border: 1.5px solid rgba(32, 109, 114, 0.15);
  border-radius: 12px;
  padding: 0.75rem 1.2rem;
  cursor: pointer;
  transition: background 0.25s ease;
}

.nav-theme-select-wrap:hover {
  background: rgba(32, 109, 114, 0.12);
}

.nav-theme-select-icon {
  font-size: 1.1rem;
  line-height: 1;
  flex-shrink: 0;
}

.nav-theme-select-label {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--primary-color);
  flex: 1;
}

/* The actual dropdown <select> element */
.nav-theme-select {
  border: none;
  outline: none;
  background: transparent;
  font-family: var(--font-heading);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--primary-color);
  cursor: pointer;
  appearance: none;
  -webkit-appearance: none;
  width: auto;
  padding: 0;
}

.nav-theme-select option {
  color: #1a1a1a;
  background: #fff;
  font-weight: 600;
}

[data-theme="dark"] .nav-theme-select-wrap {
  background: rgba(42, 144, 153, 0.08);
  border-color: rgba(42, 144, 153, 0.25);
}

[data-theme="dark"] .nav-theme-select option {
  background: #161b22;
  color: #e6edf3;
}