:root {
  --bg: #0b0b0b;
  --text: #e5e5e7;
  --primary: #5ac8fa;
  --protein: #3798ff;
  --carbs: #ff9f0a;
  --fat: #bf5af2;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background-color: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  display: flex;
  flex-direction: column;
  align-items: center;
}

main {
  flex: 1;
  width: min(600px, 100%);
  padding: 4rem 1.5rem 2rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 1.5rem;
}

.app-icon {
  height: 100px;
  width: auto;
}

h1 {
  font-weight: 600;
  margin: 0;
}

p {
  line-height: 1.6;
  margin: 0;
}

a {
  color: var(--primary);
  text-decoration: none;
}

.rings {
  display: flex;
  gap: 12px;
}

.ring {
  width: 14px;
  height: 14px;
  border-radius: 50%;
}

.protein {
  background-color: var(--protein);
}

.carbs {
  background-color: var(--carbs);
}

.fat {
  background-color: var(--fat);
}

.content-card {
  background: rgba(255, 255, 255, 0.04);
  border-radius: 16px;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.bottom-nav {
  width: 100%;
  padding: 1rem 1.5rem 2rem;
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.bottom-nav a {
  font-weight: 500;
}

.bottom-nav a.active {
  color: var(--text);
  border-bottom: 2px solid var(--text);
  padding-bottom: 0.25rem;
}

form {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.5rem;
  text-align: left;
}

.form-group label {
  font-weight: 500;
}

input,
textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
  font: inherit;
  resize: vertical;
}

input::placeholder,
textarea::placeholder {
  color: rgba(229, 229, 231, 0.7);
}

input:focus,
textarea:focus {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

button[type="submit"] {
  align-self: flex-start;
  padding: 0.75rem 1.75rem;
  border-radius: 999px;
  background: var(--primary);
  color: var(--bg);
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

button[type="submit"]:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 18px rgba(90, 200, 250, 0.3);
}

button[type="submit"]:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.form-status {
  min-height: 1.5rem;
  font-size: 0.95rem;
  text-align: left;
}

.form-status.pending {
  color: var(--primary);
}

.form-status.success {
  color: #34c759;
}

.form-status.error {
  color: #ff453a;
}

.form-alt {
  font-size: 0.9rem;
  color: rgba(229, 229, 231, 0.8);
}