@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Outfit:wght@400;500;600;700;800&display=swap');

:root {
  --font-sans: 'Inter', sans-serif;
  --font-heading: 'Outfit', sans-serif;
  
  --bg-gradient: radial-gradient(circle at top, #110e2e 0%, #030114 100%);
  --panel-bg: rgba(13, 11, 28, 0.7);
  --glass-bg: rgba(21, 18, 46, 0.65);
  --glass-border: rgba(255, 255, 255, 0.07);
  --glass-border-hover: rgba(255, 255, 255, 0.18);
  
  --text-primary: #ffffff;
  --text-secondary: #9fa6cc;
  --text-muted: #5e6488;
  
  --color-primary: #818cf8;
  --color-primary-glow: rgba(129, 140, 248, 0.15);
  --color-accent: #c084fc;
  --color-accent-glow: rgba(192, 132, 252, 0.2);
  --color-success: #10b981;
  --color-success-bg: rgba(16, 185, 129, 0.08);
  --color-warning: #f59e0b;
  --color-warning-bg: rgba(245, 158, 11, 0.08);
  --color-error: #ef4444;
  --color-error-bg: rgba(239, 68, 68, 0.08);
  
  --transition-smooth: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --shadow-premium: 0 12px 40px -10px rgba(0, 0, 0, 0.7), inset 0 1px 1px rgba(255, 255, 255, 0.1);
  --shadow-glow-success: 0 0 25px rgba(16, 185, 129, 0.15);
  --shadow-glow-warning: 0 0 25px rgba(245, 158, 11, 0.15);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-sans);
  background: var(--bg-gradient);
  background-attachment: fixed;
  color: var(--text-primary);
  min-height: 100vh;
  line-height: 1.5;
  overflow-x: hidden;
  padding-bottom: 60px;
}

/* App Container */
.app-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 40px 20px;
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.app-container.loaded {
  opacity: 1;
  transform: translateY(0);
}

/* View states toggle class */
.hidden {
  display: none !important;
}

/* Header Section */
header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 45px;
  animation: fadeInDown 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.logo-section h1 {
  font-family: var(--font-heading);
  font-size: 2.2rem;
  font-weight: 800;
  background: linear-gradient(135deg, #ffffff 30%, var(--text-secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: -0.03em;
}

.logo-section p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-top: 5px;
  opacity: 0.85;
}

/* Action Controls Header */
.header-actions {
  display: flex;
  align-items: center;
  gap: 15px;
}

/* Navigation Tabs */
.nav-tabs {
  display: flex;
  background: rgba(0, 0, 0, 0.4);
  padding: 4px;
  border-radius: 32px;
  border: 1px solid var(--glass-border);
  gap: 4px;
}

.nav-tab {
  padding: 8px 20px;
  border-radius: 32px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-secondary);
  cursor: pointer;
  transition: var(--transition-smooth);
  border: none;
  background: transparent;
}

.nav-tab:hover {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.05);
}

.nav-tab.active {
  color: #ffffff;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  box-shadow: 0 4px 15px rgba(129, 140, 248, 0.3);
}

/* UI Alert Messages */
.alert-box {
  padding: 16px 20px;
  border-radius: 16px;
  margin-bottom: 30px;
  font-size: 0.92rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  justify-content: space-between;
  backdrop-filter: blur(10px);
  animation: fadeIn 0.4s ease;
}

.alert-box.success {
  background: var(--color-success-bg);
  color: #a7f3d0;
  border: 1px solid rgba(16, 185, 129, 0.25);
}

.alert-box.error {
  background: var(--color-error-bg);
  color: #fecdd3;
  border: 1px solid rgba(239, 68, 68, 0.25);
}

.alert-box.info {
  background: rgba(129, 140, 248, 0.08);
  color: #c7d2fe;
  border: 1px solid rgba(129, 140, 248, 0.25);
}

.alert-close {
  background: none;
  border: none;
  color: inherit;
  font-size: 1.3rem;
  cursor: pointer;
  line-height: 1;
  opacity: 0.7;
  transition: opacity 0.2s;
}

.alert-close:hover {
  opacity: 1;
}

/* Auth View / Cover */
.auth-container {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 80vh;
  width: 100%;
  padding: 20px;
}

.auth-card {
  background: var(--panel-bg);
  backdrop-filter: blur(30px);
  -webkit-backdrop-filter: blur(30px);
  border: 1px solid var(--glass-border);
  border-radius: 28px;
  padding: 40px;
  width: 100%;
  max-width: 440px;
  box-shadow: var(--shadow-premium), 0 20px 50px rgba(0, 0, 0, 0.4);
  animation: scaleIn 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.auth-header {
  text-align: center;
  margin-bottom: 30px;
}

.auth-header h2 {
  font-family: var(--font-heading);
  font-size: 1.95rem;
  font-weight: 800;
  color: #ffffff;
  letter-spacing: -0.02em;
}

.auth-header p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-top: 8px;
}

/* Forms UI */
.form-group {
  margin-bottom: 22px;
}

.form-label {
  display: block;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-secondary);
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.form-input {
  width: 100%;
  background: rgba(0, 0, 0, 0.4);
  border: 1px solid var(--glass-border);
  color: var(--text-primary);
  border-radius: 14px;
  padding: 13px 18px;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  transition: var(--transition-smooth);
}

.form-input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 15px rgba(129, 140, 248, 0.25);
  background: rgba(0, 0, 0, 0.55);
}

.form-input::placeholder {
  color: var(--text-muted);
}

.auth-switch {
  text-align: center;
  margin-top: 24px;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.auth-switch a {
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 600;
  transition: var(--transition-smooth);
}

.auth-switch a:hover {
  text-decoration: none;
  color: var(--color-accent);
  text-shadow: 0 0 10px rgba(192, 132, 252, 0.4);
}

/* General Buttons */
.btn-primary, .btn-secondary {
  border-radius: 14px;
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: var(--transition-smooth);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  border: 1px solid transparent;
  padding: 12px 24px;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  color: #ffffff;
  box-shadow: 0 4px 20px rgba(129, 140, 248, 0.25);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(129, 140, 248, 0.4);
  filter: brightness(1.1);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.04);
  color: #ffffff;
  border-color: var(--glass-border);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--glass-border-hover);
  transform: translateY(-2px);
}

.btn-primary:active, .btn-secondary:active {
  transform: translateY(0);
}

/* Stats Overview */
.overview-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
  margin-bottom: 45px;
  animation: fadeInUp 0.6s cubic-bezier(0.16, 1, 0.3, 1) 0.1s both;
}

.stat-card {
  background: var(--panel-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: 24px;
  padding: 24px;
  box-shadow: var(--shadow-premium);
  transition: var(--transition-smooth);
}

.stat-card:hover {
  border-color: var(--glass-border-hover);
  transform: translateY(-3px);
  box-shadow: var(--shadow-premium), 0 8px 25px rgba(129, 140, 248, 0.1);
}

.stat-label {
  color: var(--text-secondary);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 700;
}

.stat-value {
  font-family: var(--font-heading);
  font-size: 2.1rem;
  font-weight: 800;
  margin-top: 10px;
  color: var(--text-primary);
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.stat-value span {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
}

/* Courses Grid */
.section-title {
  font-family: var(--font-heading);
  font-size: 1.55rem;
  font-weight: 700;
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.section-title span {
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  width: 6px;
  height: 24px;
  border-radius: 3px;
  display: inline-block;
}

.courses-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
  margin-bottom: 45px;
  animation: fadeInUp 0.6s cubic-bezier(0.16, 1, 0.3, 1) 0.2s both;
}

.course-card {
  background: var(--panel-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: 24px;
  padding: 24px;
  box-shadow: var(--shadow-premium);
  transition: var(--transition-smooth);
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.course-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--text-muted);
  transition: var(--transition-smooth);
}

.course-card:hover {
  border-color: var(--glass-border-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-premium), 0 10px 30px rgba(0,0,0,0.4);
}

.course-card.status-released {
  box-shadow: var(--shadow-premium), inset 0 0 12px rgba(16, 185, 129, 0.02);
}
.course-card.status-released:hover {
  box-shadow: var(--shadow-premium), var(--shadow-glow-success), 0 10px 30px rgba(16, 185, 129, 0.1);
  border-color: rgba(16, 185, 129, 0.3);
}

.course-card.status-pending:hover {
  box-shadow: var(--shadow-premium), var(--shadow-glow-warning), 0 10px 30px rgba(245, 158, 11, 0.1);
  border-color: rgba(245, 158, 11, 0.3);
}

.course-card.status-released::before {
  background: var(--color-success);
}

.course-card.status-pending::before {
  background: var(--color-warning);
}

.course-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 14px;
}

.course-code {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: -0.01em;
  background: linear-gradient(135deg, #ffffff 40%, var(--text-secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.course-badge {
  font-size: 0.72rem;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 20px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.course-badge.released {
  color: #34d399;
  background: rgba(16, 185, 129, 0.12);
  border: 1px solid rgba(16, 185, 129, 0.25);
}

.course-badge.pending {
  color: #fbbf24;
  background: rgba(245, 158, 11, 0.12);
  border: 1px solid rgba(245, 158, 11, 0.25);
  animation: pulseWarning 2s infinite;
}

.course-name {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 22px;
  line-height: 1.4;
  height: 40px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  font-weight: 500;
}

/* Marks Breakdown Container */
.course-marks-details {
  background: rgba(0, 0, 0, 0.25);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  padding: 14px 16px;
  margin-bottom: 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.mark-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.mark-lbl {
  color: var(--text-secondary);
  font-size: 0.85rem;
  font-weight: 500;
}

.mark-val {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 700;
  color: #ffffff;
}

.mark-val.released {
  color: var(--color-success);
  text-shadow: 0 0 10px rgba(16, 185, 129, 0.3);
  font-size: 1.35rem;
  font-weight: 800;
}

.mark-val.pending {
  color: var(--text-muted);
  font-size: 0.95rem;
  font-weight: 500;
  font-style: italic;
}

.course-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid rgba(255, 255, 255, 0.04);
  padding-top: 14px;
}

.course-mark-label {
  color: var(--text-muted);
  font-size: 0.78rem;
  text-transform: uppercase;
  font-weight: 600;
  letter-spacing: 0.05em;
}

/* History Logs & Info Panel Grid */
.dashboard-details {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 30px;
  animation: fadeInUp 0.6s cubic-bezier(0.16, 1, 0.3, 1) 0.3s both;
}

@media (max-width: 900px) {
  .dashboard-details {
    grid-template-columns: 1fr;
  }
}

.panel-title {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 22px;
  letter-spacing: -0.01em;
}

.panel {
  background: var(--panel-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: 24px;
  padding: 24px;
  box-shadow: var(--shadow-premium);
}

/* Timeline/History */
.history-list {
  display: flex;
  flex-direction: column;
  gap: 15px;
  max-height: 420px;
  overflow-y: auto;
  padding-right: 8px;
}

.history-list::-webkit-scrollbar {
  width: 6px;
}
.history-list::-webkit-scrollbar-track {
  background: rgba(255, 255, 255, 0.01);
}
.history-list::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.08);
  border-radius: 3px;
}
.history-list::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.15);
}

.history-card {
  background: rgba(0, 0, 0, 0.2);
  border-radius: 16px;
  border: 1px solid var(--glass-border);
  padding: 16px 20px;
  transition: var(--transition-smooth);
}

.history-card:hover {
  border-color: var(--glass-border-hover);
  background: rgba(0, 0, 0, 0.3);
}

.history-item-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.history-error-container {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid rgba(239, 68, 68, 0.15);
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.history-error-msg {
  font-family: monospace;
  font-size: 0.8rem;
  color: #fca5a5;
  background: rgba(239, 68, 68, 0.03);
  padding: 12px;
  border-radius: 8px;
  border: 1px solid rgba(239, 68, 68, 0.12);
  white-space: pre-wrap;
  word-break: break-all;
  max-height: 150px;
  overflow-y: auto;
}

.btn-screenshot-link {
  display: inline-flex;
  align-items: center;
  align-self: flex-start;
  font-size: 0.8rem;
  font-weight: 600;
  color: #a5b4fc;
  background: rgba(129, 140, 248, 0.1);
  border: 1px solid rgba(129, 140, 248, 0.25);
  padding: 8px 16px;
  border-radius: 8px;
  text-decoration: none;
  transition: var(--transition-smooth);
}

.btn-screenshot-link:hover {
  background: rgba(129, 140, 248, 0.25);
  border-color: rgba(129, 140, 248, 0.4);
  color: #ffffff;
  transform: translateY(-1px);
}

.history-info {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.history-time {
  font-size: 0.8rem;
  color: var(--text-secondary);
  opacity: 0.8;
}

.history-status {
  font-size: 0.92rem;
  font-weight: 600;
}

.history-status.success {
  color: var(--text-primary);
}

.history-status.failed {
  color: var(--color-error);
}

.history-badge {
  font-size: 0.72rem;
  padding: 4px 10px;
  border-radius: 20px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.history-badge.changed {
  background: var(--color-success-bg);
  color: #34d399;
  border: 1px solid rgba(16, 185, 129, 0.2);
}

.history-badge.no-change {
  background: rgba(255, 255, 255, 0.03);
  color: var(--text-secondary);
  border: 1px solid var(--glass-border);
}

/* System status panel */
.system-status-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.status-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 16px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.status-row:last-child {
  border: none;
  padding: 0;
}

.status-label {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.status-val {
  font-weight: 600;
  font-size: 0.9rem;
}

.status-indicator {
  display: flex;
  align-items: center;
  gap: 8px;
}

.indicator-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.indicator-dot.online {
  background-color: var(--color-success);
  box-shadow: 0 0 12px var(--color-success);
  animation: pulseIndicator 1.5s infinite alternate;
}

/* Settings View Layout */
.settings-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 30px;
  animation: fadeInUp 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

@media (max-width: 800px) {
  .settings-grid {
    grid-template-columns: 1fr;
  }
}

.settings-card {
  background: var(--panel-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: 24px;
  padding: 30px;
  box-shadow: var(--shadow-premium);
}

.settings-card-title {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: #ffffff;
}

.settings-card-desc {
  color: var(--text-secondary);
  font-size: 0.88rem;
  margin-bottom: 25px;
  opacity: 0.9;
}

/* Sync Icon spin animation */
.spinning {
  animation: spin 1s linear infinite;
}

/* Animations keyframes */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.96);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes pulseWarning {
  0% { box-shadow: 0 0 0 0 rgba(245, 158, 11, 0.4); }
  70% { box-shadow: 0 0 0 8px rgba(245, 158, 11, 0); }
  100% { box-shadow: 0 0 0 0 rgba(245, 158, 11, 0); }
}

@keyframes pulseIndicator {
  from {
    opacity: 0.4;
    box-shadow: 0 0 4px var(--color-success);
  }
  to {
    opacity: 1;
    box-shadow: 0 0 16px var(--color-success);
  }
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}