:root {
  --bg-primary: #f4f7fc;
  --bg-secondary: #ffffff;
  --bg-card: #ffffff;
  --bg-header: linear-gradient(135deg, #1a3c6e 0%, #2a5298 100%);
  --text-primary: #1a2a3a;
  --text-secondary: #4a5a6a;
  --text-light: #ffffff;
  --border-color: #e0e6ed;
  --shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
  --shadow-hover: 0 12px 40px rgba(0, 20, 50, 0.15);
  --radius: 16px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font: 'Segoe UI', system-ui, -apple-system, sans-serif;
  --accent: #2a7de1;
  --accent-hover: #1a5cb5;
  --success: #27ae60;
  --danger: #e74c3c;
  --warning: #f39c12;
}

/* ===== Reset & Base ===== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: #f0f2f5;
    color: #333;
    padding-top: 80px;
}

/* ===== App Container ===== */
.app-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px;
}

main {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 30px;
    margin-top: 10px;
}

/* ===== Header ===== */
.app-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: linear-gradient(135deg, #1a3c6e 0%, #2a5a9a 100%);
    color: white;
    padding: 12px 25px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    transition: box-shadow 0.3s ease;
}

.app-header:hover {
    box-shadow: 0 6px 30px rgba(0, 0, 0, 0.25);
}

.app-header h1 {
    font-size: 1.4rem;
    font-weight: 600;
    letter-spacing: 0.5px;
}

.user-info {
    display: flex;
    align-items: center;
    gap: 20px;
}

.user-info span {
    font-weight: 500;
    background: rgba(255, 255, 255, 0.15);
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 0.95rem;
}

#userName {
  font-weight: 500;
  background: rgba(255, 255, 255, 0.15);
  padding: 6px 18px;
  border-radius: 30px;
  backdrop-filter: blur(4px);
  font-size: 0.95rem;
}

#logoutBtn {
    background: rgba(255, 255, 255, 0.2);
    border: none;
    color: white;
    padding: 8px 20px;
    border-radius: 20px;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.3s ease;
}

#logoutBtn:hover {
    background: #e74c3c;
    transform: scale(1.05);
}

#logoutBtn:active {
    transform: scale(0.95);
}

/* ===== Main Grid ===== */
main {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 30px;
}

@media (max-width: 1024px) {
  main {
    grid-template-columns: 1fr;
    gap: 25px;
  }
}

/* ===== Cards ===== */
.card {
    background: white;
    border-radius: 16px;
    padding: 25px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
    transition: transform 0.2s ease, box-shadow 0.3s ease;
}

.card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
}

.card h2 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 20px;
    color: #1a3c6e;
    border-bottom: 2px solid #eef2f7;
    padding-bottom: 10px;
}

/* ===== Form Elements ===== */
.form-row {
  margin-bottom: 18px;
}

label {
  display: block;
  font-weight: 500;
  margin-bottom: 6px;
  font-size: 0.95rem;
  color: var(--text-secondary);
}

select,
textarea,
input[type="number"] {
  width: 100%;
  padding: 12px 16px;
  border: 2px solid var(--border-color);
  border-radius: 12px;
  font-size: 1rem;
  font-family: inherit;
  transition: var(--transition);
  background: #fafcff;
  color: var(--text-primary);
}

select:focus,
textarea:focus,
input[type="number"]:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 4px rgba(42, 125, 225, 0.15);
  background: white;
}

textarea {
  resize: vertical;
  min-height: 100px;
}

/* ===== Scores Grid ===== */
.scores-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px 20px;
  margin: 15px 0 20px;
}

@media (max-width: 600px) {
  .scores-grid {
    grid-template-columns: 1fr;
  }
}

.score-item {
  display: flex;
  flex-direction: column;
}

.score-item label {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 3px;
}

.score-item input {
  padding: 8px 12px;
  border-radius: 10px;
  border: 2px solid var(--border-color);
  font-size: 0.95rem;
  transition: var(--transition);
  width: 100%;
}

.score-item input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(42, 125, 225, 0.15);
}

/* ===== Buttons ===== */
button {
  cursor: pointer;
  font-family: inherit;
  font-weight: 600;
  border: none;
  transition: var(--transition);
  border-radius: 30px;
  padding: 12px 28px;
  font-size: 1rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

#saveReviewBtn {
  background: linear-gradient(135deg, var(--accent), var(--accent-hover));
  color: white;
  box-shadow: 0 4px 15px rgba(42, 125, 225, 0.3);
  width: 100%;
  margin-top: 5px;
}

#saveReviewBtn:hover {
  transform: translateY(-2px) scale(1.01);
  box-shadow: 0 8px 25px rgba(42, 125, 225, 0.4);
}

#saveReviewBtn:active {
  transform: scale(0.98);
}

.download-btn {
  background: linear-gradient(135deg, #27ae60, #2ecc71);
  color: white;
  padding: 14px 35px;
  font-size: 1.05rem;
  box-shadow: 0 4px 15px rgba(39, 174, 96, 0.3);
  flex: 1;
  min-width: 180px;
}

.download-btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(39, 174, 96, 0.4);
}

.download-btn:active {
  transform: scale(0.97);
}

button[type="submit"] {
    width: 100%;
    padding: 12px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 18px;
    font-weight: 600;
    cursor: pointer;
    transition: opacity 0.3s ease, transform 0.2s ease;
}

button[type="submit"]:hover {
    opacity: 0.9;
    transform: scale(1.02);
}

button[type="submit"]:active {
    transform: scale(0.98);
}

/* ===== Download Section ===== */
#downloadSection {
  grid-column: 1 / -1;
  text-align: center;
  padding: 30px;
  background: linear-gradient(135deg, #f0f7ff, #ffffff);
  border: 2px dashed var(--accent);
}

#downloadSection h2 {
  justify-content: center;
}

#downloadSection h2::after {
  display: none;
}

#downloadSection .download-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  justify-content: center;
  margin-top: 15px;
}

#downloadMessage {
  margin-top: 15px;
  font-weight: 500;
  color: var(--success);
  animation: fadeInUp 0.4s ease;
}

/* ===== Table ===== */
table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 12px;
  font-size: 0.95rem;
}

th {
  background: #f0f4fa;
  color: var(--text-secondary);
  font-weight: 600;
  padding: 12px 10px;
  text-align: left;
  border-bottom: 2px solid var(--border-color);
}

td {
  padding: 12px 10px;
  border-bottom: 1px solid var(--border-color);
  vertical-align: middle;
}

tr:hover td {
  background: #f8faff;
}

.edit-review {
  background: var(--accent);
  color: white;
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 500;
  border: none;
  cursor: pointer;
  transition: var(--transition);
}

.edit-review:hover {
  background: var(--accent-hover);
  transform: scale(1.05);
}

/* ===== Messages ===== */
#saveMessage {
  margin-top: 15px;
  padding: 10px 16px;
  border-radius: 12px;
  font-weight: 500;
  text-align: center;
  animation: fadeInUp 0.3s ease;
}

#saveMessage.success {
  background: #e6f7ed;
  color: #1a7a42;
}

#saveMessage.error {
  background: #fde8e8;
  color: #b33c3c;
}

/* ===== Animations ===== */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pulse {
  0% {
    box-shadow: 0 0 0 0 rgba(42, 125, 225, 0.4);
  }
  70% {
    box-shadow: 0 0 0 10px rgba(42, 125, 225, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(42, 125, 225, 0);
  }
}

.pulse-once {
  animation: pulse 0.6s ease-out;
}

/* ===== Login page specific ===== */
.login-container {
    width: 100%;
    max-width: 400px;
    padding: 20px;
}

.login-box {
    background: white;
    padding: 40px 30px;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.login-box:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.3);
}

.login-box h2 {
    text-align: center;
    margin-bottom: 25px;
    color: #333;
    font-weight: 600;
}

.login-box h2::after {
  content: '';
  display: block;
  width: 60px;
  height: 4px;
  background: var(--accent);
  margin: 12px auto 0;
  border-radius: 4px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-weight: 500;
    color: #555;
    margin-bottom: 5px;
}

.form-group input {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-size: 16px;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.form-group input:focus {
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.2);
    outline: none;
}

.login-box label {
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--text-secondary);
}

.login-box input {
  width: 100%;
  padding: 14px 18px;
  border: 2px solid var(--border-color);
  border-radius: 12px;
  font-size: 1rem;
  transition: var(--transition);
  background: #fafcff;
}

.login-box input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 4px rgba(42, 125, 225, 0.1);
}

.login-box button {
  width: 100%;
  padding: 14px;
  background: linear-gradient(135deg, var(--accent), var(--accent-hover));
  color: white;
  font-size: 1.1rem;
  font-weight: 600;
  border-radius: 30px;
  transition: var(--transition);
  box-shadow: 0 4px 15px rgba(42, 125, 225, 0.3);
}

.login-box button:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(42, 125, 225, 0.4);
}

.error {
    color: #e74c3c;
    margin-top: 15px;
    text-align: center;
    font-size: 14px;
}

/* ===== Responsive tweaks ===== */
@media (max-width: 768px) {
  body {
    padding: 10px;
  }

  header {
    padding: 15px 20px;
    flex-direction: column;
    align-items: stretch;
    text-align: center;
  }

  header h1 {
    font-size: 1.4rem;
    justify-content: center;
  }

  .user-info {
    justify-content: center;
    flex-wrap: wrap;
  }

  .review-form,
  .reviews-list,
  #downloadSection {
    padding: 20px;
  }

  .download-btn {
    min-width: 140px;
    padding: 12px 20px;
    font-size: 0.95rem;
  }

  .login-box {
    padding: 30px 25px;
  }

  .login-box h2 {
    font-size: 1.6rem;
  }
}

@media (max-width: 480px) {
  .scores-grid {
    gap: 8px;
  }

  .score-item input {
    padding: 6px 10px;
    font-size: 0.9rem;
  }

  table {
    font-size: 0.85rem;
  }

  th,
  td {
    padding: 8px 6px;
  }
}