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

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: #1a1a1a;
  color: #fff;
  min-height: 100vh;
}

.content {
  padding: 40px 20px;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  text-align: center;
}

/* Back link */
.back-link {
  display: inline-block;
  color: #888;
  text-decoration: none;
  font-size: 0.9em;
  margin-bottom: 24px;
  transition: color 0.15s;
}

.back-link:hover {
  color: #FFD700;
}

/* Home page */
.home-title {
  color: #FFD700;
  font-size: 2.4em;
  margin-bottom: 8px;
}

.home-subtitle {
  color: #888;
  font-size: 1.1em;
  margin-bottom: 40px;
}

.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 16px;
  max-width: 700px;
  margin: 0 auto;
  text-align: left;
}

.tool-card {
  background: #222;
  border: 1px solid #333;
  border-radius: 10px;
  padding: 28px 20px;
  text-decoration: none;
  color: #fff;
  transition: border-color 0.3s, transform 0.15s, box-shadow 0.25s;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

.tool-card:hover {
  border-color: #FFD700;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(255, 215, 0, 0.15);
}

.tool-icon {
  font-size: 2.2em;
}

.tool-name {
  font-weight: 700;
  font-size: 1.1em;
  color: #FFD700;
}

/* Headings */
h1 {
  color: #FFD700;
}

.page-header {
  margin-bottom: 30px;
}

.page-header h1 {
  font-size: 2.2em;
  margin-bottom: 10px;
}

.page-header p {
  color: #ccc;
  font-size: 1.1em;
  max-width: 560px;
  margin: 0 auto;
}

/* Day cards */
.day-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 14px;
  margin-bottom: 20px;
  text-align: left;
}

.day-card {
  background: #222;
  border: 1px solid #333;
  border-radius: 10px;
  padding: 18px 16px;
  transition: border-color 0.3s;
  display: flex;
  flex-direction: column;
}

.day-card:focus-within {
  border-color: #555;
}

.day-name {
  font-size: 0.8em;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: #FFD700;
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid #333;
}

/* Forms */
.planner-form {
  text-align: left;
}

.form-group {
  margin-bottom: 14px;
}

.form-group:last-child {
  margin-bottom: 0;
}

.form-group label {
  display: block;
  font-size: 0.9em;
  color: #ccc;
  margin-bottom: 7px;
  font-weight: 500;
}

.form-group select,
.form-group input {
  width: 100%;
  padding: 11px 14px;
  background: #1a1a1a;
  border: 1px solid #444;
  border-radius: 6px;
  color: #fff;
  font-size: 0.95em;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  transition: border-color 0.25s, box-shadow 0.25s;
}

.form-group select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'%3E%3Cpath fill='%23FFD700' d='M5 6 0 0h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
}

.form-group input {
  appearance: auto;
  background-image: none;
}

.form-group select:focus,
.form-group input:focus {
  outline: none;
  border-color: #FFD700;
  box-shadow: 0 0 0 2px rgba(255, 215, 0, 0.15);
}

.form-group select option {
  background: #1a1a1a;
  color: #fff;
}

/* Passphrase card */
.passphrase-card {
  max-width: 640px;
  margin: 0 auto 20px;
}

.card-section-title {
  font-size: 0.8em;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: #FFD700;
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid #333;
}

/* Submit */
.submit-row {
  text-align: center;
  margin-top: 8px;
}

.planner-submit {
  width: 100%;
  max-width: 640px;
  padding: 14px;
  font-size: 1.05em;
  font-weight: 700;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  background: linear-gradient(135deg, #FFD700, #f0c000);
  color: #1a1a1a;
  transition: transform 0.15s, box-shadow 0.25s;
  margin-top: 4px;
}

.planner-submit:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(255, 215, 0, 0.3);
}

.planner-submit:active {
  transform: translateY(0);
}

.planner-submit:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.planner-note {
  text-align: center;
  font-size: 0.85em;
  color: #666;
  margin-top: 16px;
}

/* Messages */
.planner-msg {
  padding: 12px 16px;
  border-radius: 6px;
  margin: 0 auto 14px;
  font-size: 0.95em;
  font-weight: 500;
  max-width: 640px;
}

.planner-msg.success {
  background: rgba(46, 204, 113, 0.12);
  border: 1px solid rgba(46, 204, 113, 0.4);
  color: #2ecc71;
}

.planner-msg.error {
  background: rgba(231, 76, 60, 0.12);
  border: 1px solid rgba(231, 76, 60, 0.4);
  color: #e74c3c;
}

@media (max-width: 600px) {
  .page-header h1 {
    font-size: 1.8em;
  }

  .home-title {
    font-size: 1.8em;
  }

  .day-grid {
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  }
}