* {
  box-sizing: border-box;
}

:root {
  --blue: #294f8f;
  --dark-blue: #16386f;
  --background: #f3f6fb;
  --border: #dce4ef;
  --text: #1f2937;
  --muted: #64748b;
  --white: #ffffff;
  --green: #15935a;
  --orange: #e89121;
  --red: #d84b4b;
}

body {
  margin: 0;
  background: var(--background);
  color: var(--text);
  font-family: Arial, sans-serif;
  line-height: 1.6;
}

button,
input,
select {
  font: inherit;
}

button {
  cursor: pointer;
}

.site-header {
  min-height: 96px;
  padding: 20px 4%;
  background: var(--blue);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.site-name {
  color: var(--white);
  font-size: 20px;
  font-weight: 700;
  text-decoration: none;
}

.back-link {
  padding: 8px 14px;
  border: 1px solid var(--white);
  border-radius: 6px;
  color: var(--white);
  text-decoration: none;
}

.tracker-container {
  width: min(1120px, 92%);
  margin: 48px auto;
}

.intro-card,
.section-card {
  margin-bottom: 28px;
  padding: 34px;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 22px;
  box-shadow: 0 14px 32px rgba(29, 55, 95, 0.07);
}

.intro-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
}

.page-label {
  display: inline-block;
  margin-bottom: 10px;
  padding: 5px 12px;
  background: #edf3fc;
  border-radius: 999px;
  color: var(--dark-blue);
  font-weight: 700;
}

h1 {
  margin: 0 0 10px;
  font-size: 44px;
  line-height: 1.2;
}

h2 {
  margin: 0 0 5px;
  color: #132c55;
  font-size: 28px;
}

.intro-card p,
.section-heading p {
  margin: 0;
  color: var(--muted);
}

.primary-button,
.secondary-button {
  min-height: 46px;
  padding: 10px 18px;
  border-radius: 8px;
  font-weight: 700;
}

.primary-button {
  border: 1px solid var(--blue);
  background: var(--blue);
  color: var(--white);
}

.primary-button:hover {
  background: var(--dark-blue);
}

.secondary-button {
  border: 1px solid #cbd5e1;
  background: var(--white);
  color: #45546a;
  white-space: nowrap;
}

.secondary-button:hover {
  background: #f8fafc;
}

.section-heading {
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.target-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

label {
  color: #253650;
  font-weight: 700;
}

input,
select {
  width: 100%;
  min-height: 48px;
  margin-top: 7px;
  padding: 10px 13px;
  border: 1px solid #cbd5e1;
  border-radius: 8px;
  background: var(--white);
  color: var(--text);
  outline: none;
}

input:focus,
select:focus {
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(41, 79, 143, 0.12);
}

.input-with-unit {
  position: relative;
  display: block;
}

.input-with-unit input {
  padding-right: 54px;
}

.input-with-unit > span {
  position: absolute;
  right: 14px;
  bottom: 11px;
  color: var(--muted);
  font-weight: 600;
}

.save-target-button {
  grid-column: 1 / -1;
  justify-self: start;
  margin-top: 4px;
}

.summary-grid {
  margin-bottom: 28px;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.summary-card {
  padding: 22px;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 16px;
  box-shadow: 0 10px 24px rgba(29, 55, 95, 0.06);
}

.summary-title {
  margin-bottom: 15px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 18px;
  font-weight: 700;
}

.summary-title strong {
  color: var(--blue);
}

.progress-track {
  height: 9px;
  overflow: hidden;
  background: #e9eef5;
  border-radius: 999px;
}

.progress-value {
  width: 0;
  height: 100%;
  border-radius: inherit;
  transition: width 0.3s ease;
}

.calories-card .progress-value {
  background: var(--blue);
}

.protein-card .progress-value {
  background: var(--green);
}

.carbs-card .progress-value {
  background: #2878d0;
}

.fat-card .progress-value {
  background: var(--orange);
}

.summary-values {
  margin-top: 17px;
  display: flex;
  justify-content: space-between;
  gap: 10px;
}

.summary-values p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.summary-values strong {
  display: block;
  margin-top: 3px;
  color: var(--text);
  font-size: 17px;
}

.food-form {
  display: grid;
  grid-template-columns: 1fr 2fr 1fr auto;
  align-items: end;
  gap: 16px;
}

.add-food-button {
  min-width: 145px;
}

.form-message {
  min-height: 24px;
  margin: 14px 0 0;
  color: var(--red);
  font-weight: 600;
}

.form-message.success {
  color: var(--green);
}

.diary-heading {
  padding-bottom: 18px;
  border-bottom: 1px solid var(--border);
}

.diary-heading strong {
  padding: 6px 12px;
  background: #edf3fc;
  border-radius: 999px;
  color: var(--dark-blue);
}

.empty-diary {
  padding: 34px 15px;
  color: var(--muted);
  text-align: center;
}

.diary-list {
  display: grid;
  gap: 20px;
}

.meal-group {
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 14px;
}

.meal-title {
  margin: 0;
  padding: 13px 17px;
  background: #f6f8fc;
  color: var(--dark-blue);
  font-size: 18px;
}

.diary-entry {
  padding: 15px 17px;
  border-top: 1px solid var(--border);
  display: grid;
  grid-template-columns: minmax(160px, 1.5fr) repeat(5, 1fr) auto;
  align-items: center;
  gap: 12px;
}

.entry-food-name {
  font-weight: 700;
}

.entry-value {
  color: #526174;
  font-size: 14px;
}

.delete-entry-button {
  padding: 7px 10px;
  border: 1px solid #efcaca;
  border-radius: 6px;
  background: #fff7f7;
  color: #bd3030;
  font-weight: 700;
}

.delete-entry-button:hover {
  background: #feeaea;
}

.information-note {
  padding: 18px 22px;
  background: #fffaf0;
  border: 1px solid #f1dfb8;
  border-radius: 12px;
  color: #654f23;
}

footer {
  padding: 28px 20px;
  border-top: 1px solid var(--border);
  color: var(--muted);
  text-align: center;
}

footer p {
  margin: 0 0 8px;
}

footer a {
  display: inline-block;
  margin: 4px 8px;
  color: var(--blue);
}

@media (max-width: 900px) {
  .target-grid,
  .summary-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .food-form {
    grid-template-columns: 1fr 1fr;
  }

  .add-food-button {
    width: 100%;
  }

  .diary-entry {
    grid-template-columns: 1.4fr repeat(2, 1fr) auto;
  }

  .entry-value:nth-of-type(4),
  .entry-value:nth-of-type(5),
  .entry-value:nth-of-type(6) {
    display: none;
  }
}

@media (max-width: 600px) {
  .site-header {
    min-height: 78px;
    padding: 16px 20px;
  }

  .back-link {
    font-size: 14px;
  }

  .tracker-container {
    margin: 26px auto;
  }

  .intro-card,
  .section-card {
    padding: 22px;
    border-radius: 16px;
  }

  .intro-card {
    align-items: stretch;
    flex-direction: column;
  }

  h1 {
    font-size: 33px;
  }

  h2 {
    font-size: 24px;
  }

  .target-grid,
  .summary-grid,
  .food-form {
    grid-template-columns: 1fr;
  }

  .save-target-button,
  .secondary-button {
    width: 100%;
  }

  .summary-values {
    justify-content: flex-start;
    gap: 36px;
  }

  .section-heading {
    align-items: flex-start;
    flex-direction: column;
  }

  .diary-entry {
    grid-template-columns: 1fr auto;
  }

  .entry-value {
    display: none;
  }
}