/* ═══════════════════════════════════════════════════════
   HEPATOLOGÍA — STUDENT PORTAL STYLES
   ═══════════════════════════════════════════════════════ */

.portal-body {
  background: var(--gray-50);
  overflow-x: hidden;
}

/* ═══════════════════════════════════════════════════════
   LOGIN SCREEN
   ═══════════════════════════════════════════════════════ */
.login-screen {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(160deg, var(--navy) 0%, var(--teal-deeper) 50%, var(--teal-dark) 100%);
  padding: 2rem;
  position: relative;
  overflow: hidden;
}

.login-bg-shapes {
  position: absolute;
  inset: 0;
  pointer-events: none;
}
.login-bg-shapes .shape-1 {
  width: 500px;
  height: 500px;
  background: rgba(10,107,102,0.15);
  top: -150px;
  right: -150px;
}
.login-bg-shapes .shape-2 {
  width: 350px;
  height: 350px;
  background: rgba(201,150,60,0.06);
  bottom: -100px;
  left: -100px;
}

.login-card {
  background: var(--white);
  border-radius: var(--radius-xl);
  padding: 3rem;
  width: 100%;
  max-width: 440px;
  text-align: center;
  box-shadow: var(--shadow-2xl);
  position: relative;
  z-index: 1;
}

.login-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: 'Playfair Display', serif;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 1.5rem;
}
.login-logo .logo-icon { font-size: 1.75rem; }

.login-divider {
  width: 50px;
  height: 2px;
  background: linear-gradient(90deg, var(--teal), var(--gold));
  margin: 0 auto 1.5rem;
}

.login-card h1 {
  font-size: 1.75rem;
  color: var(--navy);
  margin-bottom: 0.5rem;
}

.login-card > p {
  font-size: 0.9rem;
  color: var(--gray-500);
  margin-bottom: 2rem;
}

.login-input-wrap {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  background: var(--gray-50);
  border: 2px solid var(--gray-200);
  border-radius: var(--radius);
  padding: 0.85rem 1.25rem;
  transition: border-color 0.3s;
  margin-bottom: 0.75rem;
}
.login-input-wrap:focus-within {
  border-color: var(--teal);
  background: var(--white);
}
.login-input-wrap svg {
  color: var(--gray-400);
  flex-shrink: 0;
}
.login-input-wrap input {
  border: none;
  outline: none;
  background: transparent;
  font-family: 'Inter', sans-serif;
  font-size: 0.95rem;
  color: var(--gray-800);
  width: 100%;
}
.login-input-wrap input::placeholder {
  color: var(--gray-400);
}
.login-input-wrap input.error + .login-error {
  display: block;
}

.login-error {
  color: var(--red);
  font-size: 0.8rem;
  margin-bottom: 0.75rem;
  opacity: 0;
  transition: opacity 0.3s;
  height: 0;
  overflow: hidden;
}
.login-error.visible {
  opacity: 1;
  height: auto;
  margin-bottom: 0.75rem;
}

.login-btn {
  width: 100%;
  justify-content: center;
  margin-top: 0.5rem;
}

.login-help {
  margin-top: 1.5rem;
  font-size: 0.8rem;
  color: var(--gray-400);
}
.login-help a {
  color: var(--teal);
  font-weight: 500;
  text-decoration: underline;
}

/* ═══════════════════════════════════════════════════════
   PORTAL NAV
   ═══════════════════════════════════════════════════════ */
.portal-nav {
  background: var(--white);
  border-bottom: 1px solid var(--gray-200);
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: 60px;
}

.portal-nav-inner {
  max-width: 100%;
  padding: 0 1.5rem;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.portal-nav-right {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.portal-user {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: var(--gray-500);
}
.portal-user svg { color: var(--gray-400); }

.btn-logout {
  font-family: 'Montserrat', sans-serif;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--gray-400);
  letter-spacing: 0.05em;
  padding: 0.4rem 0.75rem;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-sm);
  transition: all 0.2s;
}
.btn-logout:hover {
  color: var(--red);
  border-color: var(--red);
}

/* ═══════════════════════════════════════════════════════
   PORTAL LAYOUT
   ═══════════════════════════════════════════════════════ */
.portal-layout {
  display: grid;
  grid-template-columns: 300px 1fr;
  min-height: 100vh;
  padding-top: 60px;
}

/* ═══════════════════════════════════════════════════════
   SIDEBAR
   ═══════════════════════════════════════════════════════ */
.portal-sidebar {
  background: var(--white);
  border-right: 1px solid var(--gray-200);
  height: calc(100vh - 60px);
  position: sticky;
  top: 60px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
}

.sidebar-header {
  padding: 1.5rem;
  border-bottom: 1px solid var(--gray-100);
}

.sidebar-header h3 {
  font-family: 'Montserrat', sans-serif;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gray-400);
  margin-bottom: 1rem;
}

.progress-bar {
  height: 6px;
  background: var(--gray-100);
  border-radius: 3px;
  overflow: hidden;
  margin-bottom: 0.5rem;
}
.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--teal), var(--gold));
  border-radius: 3px;
  transition: width 0.5s var(--ease);
}

.progress-text {
  font-size: 0.7rem;
  color: var(--gray-400);
  font-family: 'Montserrat', sans-serif;
}

.sidebar-nav {
  flex: 1;
  padding: 0.75rem;
}

.sidebar-item {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.85rem 1rem;
  border-radius: var(--radius);
  transition: all 0.2s;
  text-align: left;
  margin-bottom: 0.25rem;
}
.sidebar-item:hover {
  background: var(--gray-50);
}
.sidebar-item.active {
  background: var(--teal-light);
  border: 1px solid rgba(10,107,102,0.1);
}

.sidebar-item-num {
  font-family: 'Playfair Display', serif;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--gray-300);
  flex-shrink: 0;
  width: 28px;
}
.sidebar-item.active .sidebar-item-num { color: var(--teal); }

.sidebar-item-info {
  flex: 1;
  min-width: 0;
}

.sidebar-item-title {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--gray-700);
  line-height: 1.3;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.sidebar-item.active .sidebar-item-title { color: var(--teal-dark); }

.sidebar-item-meta {
  display: block;
  font-size: 0.65rem;
  color: var(--gray-400);
  margin-top: 0.15rem;
  font-family: 'Montserrat', sans-serif;
}

.sidebar-item-status {
  flex-shrink: 0;
  color: var(--gray-300);
}
.sidebar-item-status[data-status="completed"] svg { color: var(--green); }
.sidebar-item-status[data-status="in-progress"] svg { color: var(--teal); }

.sidebar-footer {
  padding: 1rem 1.5rem;
  border-top: 1px solid var(--gray-100);
}

.sidebar-support {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8rem;
  color: var(--gray-500);
  transition: color 0.2s;
}
.sidebar-support:hover { color: var(--teal); }

.sidebar-toggle {
  display: none;
  position: fixed;
  bottom: 1.5rem;
  left: 1.5rem;
  z-index: 101;
  width: 48px;
  height: 48px;
  background: var(--navy);
  color: var(--white);
  border-radius: 50%;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-xl);
}

/* ═══════════════════════════════════════════════════════
   MAIN CONTENT
   ═══════════════════════════════════════════════════════ */
.portal-main {
  padding: 2rem;
  overflow-y: auto;
}

.module-content {
  display: none;
  max-width: 900px;
  margin: 0 auto;
  animation: fadeIn 0.3s var(--ease);
}
.module-content.active { display: block; }

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ─── Module Header ─── */
.module-header {
  background: linear-gradient(135deg, var(--navy), var(--teal-dark));
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  margin-bottom: 2rem;
  color: var(--white);
}

.module-header-badge {
  display: inline-block;
  background: rgba(201,150,60,0.15);
  border: 1px solid rgba(201,150,60,0.3);
  color: var(--gold);
  font-family: 'Montserrat', sans-serif;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  padding: 0.3rem 0.75rem;
  border-radius: var(--radius-full);
  margin-bottom: 1rem;
}

.module-header h2 {
  color: var(--white);
  font-size: 1.75rem;
  margin-bottom: 0.5rem;
}

.module-header p {
  color: rgba(255,255,255,0.65);
  font-size: 0.95rem;
}

/* ─── Video Player ─── */
.video-section {
  margin-bottom: 2rem;
}

.video-player {
  position: relative;
  width: 100%;
  padding-top: 56.25%;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
  background: #0d1b2a;
}

.video-player-placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #0d1b2a 0%, #1a3344 50%, #0d2b26 100%);
  cursor: pointer;
}

.video-player-placeholder .video-play-btn {
  width: 70px;
  height: 70px;
  background: var(--gold);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--navy);
  box-shadow: 0 6px 25px rgba(201,150,60,0.4);
  transition: all 0.3s;
}
.video-player-placeholder .video-play-btn:hover {
  transform: scale(1.08);
}
.video-player-placeholder .video-play-btn svg {
  margin-left: 3px;
}

.video-player-label {
  color: rgba(255,255,255,0.7);
  font-size: 0.9rem;
  font-weight: 500;
  margin-top: 1rem;
}

.video-player-hint {
  color: rgba(255,255,255,0.3);
  font-size: 0.7rem;
  font-family: 'Montserrat', sans-serif;
  margin-top: 0.25rem;
}

/* ─── Lesson Nav ─── */
.lesson-nav {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  margin-bottom: 2rem;
}

.lesson-nav h3 {
  font-family: 'Montserrat', sans-serif;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gray-400);
  margin-bottom: 1rem;
}

.lesson-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.lesson-item {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  padding: 0.85rem 1rem;
  border: 1px solid var(--gray-100);
  border-radius: var(--radius);
  transition: all 0.2s;
  text-align: left;
  width: 100%;
}
.lesson-item:hover {
  border-color: var(--gray-300);
  background: var(--gray-50);
}
.lesson-item.active {
  border-color: var(--teal);
  background: var(--teal-50);
}

.lesson-num {
  width: 28px;
  height: 28px;
  background: var(--gray-100);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Montserrat', sans-serif;
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--gray-500);
  flex-shrink: 0;
}
.lesson-item.active .lesson-num {
  background: var(--teal);
  color: var(--white);
}

.lesson-info {
  flex: 1;
  min-width: 0;
}

.lesson-title {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--gray-700);
  line-height: 1.3;
}
.lesson-item.active .lesson-title { color: var(--teal-dark); font-weight: 600; }

.lesson-duration {
  display: block;
  font-size: 0.7rem;
  color: var(--gray-400);
  margin-top: 0.15rem;
  font-family: 'Montserrat', sans-serif;
}

.lesson-status {
  flex-shrink: 0;
  color: var(--gray-300);
}
.lesson-status.playing { color: var(--teal); }
.lesson-status.completed { color: var(--green); }

/* ─── Module Nav Buttons ─── */
.module-nav-btns {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 1rem;
}

.btn-ghost-dark {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: 'Montserrat', sans-serif;
  font-weight: 600;
  font-size: 0.85rem;
  letter-spacing: 0.03em;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius);
  color: var(--gray-500);
  border: 1px solid var(--gray-200);
  background: var(--white);
  transition: all 0.2s;
}
.btn-ghost-dark:hover {
  color: var(--teal);
  border-color: var(--teal);
}

/* ─── Completion Card ─── */
.completion-card {
  background: linear-gradient(135deg, var(--gold-50), var(--teal-50));
  border: 2px solid var(--gold);
  border-radius: var(--radius-lg);
  padding: 3rem;
  text-align: center;
  margin-top: 2rem;
}

.completion-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.completion-card h3 {
  font-size: 1.75rem;
  color: var(--navy);
  margin-bottom: 0.5rem;
}

.completion-card p {
  font-size: 0.95rem;
  color: var(--gray-600);
  max-width: 500px;
  margin: 0 auto 1.5rem;
}

/* ═══════════════════════════════════════════════════════
   RESPONSIVE — PORTAL
   ═══════════════════════════════════════════════════════ */
@media (max-width: 900px) {
  .portal-layout {
    grid-template-columns: 1fr;
  }

  .portal-sidebar {
    position: fixed;
    top: 60px;
    left: 0;
    bottom: 0;
    width: 300px;
    z-index: 99;
    transform: translateX(-100%);
    transition: transform 0.3s var(--ease);
    box-shadow: none;
  }
  .portal-sidebar.open {
    transform: translateX(0);
    box-shadow: var(--shadow-2xl);
  }

  .sidebar-toggle {
    display: flex;
  }

  .portal-main {
    padding: 1.5rem 1rem;
  }

  .module-header {
    padding: 2rem 1.5rem;
  }
  .module-header h2 { font-size: 1.35rem; }
}

@media (max-width: 480px) {
  .login-card { padding: 2rem 1.5rem; }
  .login-card h1 { font-size: 1.5rem; }

  .portal-main { padding: 1rem 0.75rem; }
  .module-header { padding: 1.5rem 1.25rem; }

  .lesson-item { padding: 0.7rem 0.75rem; }
  .lesson-title { font-size: 0.8rem; }

  .module-nav-btns {
    flex-direction: column;
  }
  .module-nav-btns .btn {
    justify-content: center;
  }
}