:root {
    --color-primary: #4f46e5;
    --color-primary-dark: #4338ca;
    --color-primary-light: #a5b4fc;
    --color-danger: #dc2626;
    --color-danger-dark: #b91c1c;
    --color-text-dark: #1e293b;
    --color-text-base: #334155;
    --color-text-light: #64748b;
    --color-text-extra-light: #94a3b8;
    --color-bg-light: #f8fafc;
    --color-bg-white: #ffffff;
    --color-border: #cbd5e1;
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
    background-color: var(--color-bg-light);
    color: var(--color-text-base);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.net-carb-calculator-embed {
    max-width: 1290px;
    margin: 2rem auto;
}

.grid-container {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    align-items: start;
}

@media (min-width: 1024px) {
    .grid-container {
        grid-template-columns: 3fr 2fr;
    }
}

.card {
    background-color: var(--color-bg-white);
    border-radius: 0.75rem;
    box-shadow: var(--shadow-md);
    overflow: hidden;
    transition: box-shadow 0.3s ease-in-out;
}

.card:hover {
    box-shadow: var(--shadow-lg);
}

.card-content {
    padding: 1.5rem;
}

.card-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text-dark);
    margin-bottom: 1.5rem;
}

.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem 1rem;
}

.form-field, .form-field-span-2 {
    display: flex;
    flex-direction: column;
}

.form-field-span-2 {
    grid-column: span 2 / span 2;
}

.form-field label {
    display: flex;
    align-items: center;
    margin-bottom: 0.25rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text-dark);
}

.info-icon {
    position: relative;
    display: inline-block;
    width: 1rem;
    height: 1rem;
    border-radius: 50%;
    background-color: #e2e8f0;
    color: var(--color-text-light);
    text-align: center;
    line-height: 1rem;
    font-size: 0.75rem;
    font-weight: 700;
    margin-left: 0.5rem;
    cursor: help;
}

.info-icon:hover::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 125%;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--color-text-dark);
    color: var(--color-bg-white);
    padding: 0.5rem;
    border-radius: 0.375rem;
    font-size: 0.75rem;
    width: 12rem;
    z-index: 10;
    text-align: left;
    font-weight: 400;
    line-height: 1.2;
    pointer-events: none;
    opacity: 1;
}

.form-field input {
    width: 100%;
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--color-border);
    border-radius: 0.375rem;
    font-size: 0.875rem;
    box-shadow: 0 1px 2px 0 rgb(0 0 0 / 0.05);
}

.form-field input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 1px var(--color-primary);
}

.result-section {
    background-color: var(--color-bg-light);
    padding: 1.5rem;
    border-top: 1px solid #e2e8f0;
}

.breakdown-title {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--color-text-dark);
}

.breakdown-formula {
    font-size: 0.875rem;
    color: var(--color-text-light);
    margin-bottom: 1rem;
}

.visual-container {
    display: flex;
    flex-direction: column;
    background-color: var(--color-bg-white);
    padding: 1rem;
    border-radius: 0.5rem;
    box-shadow: inset 0 2px 4px 0 rgb(0 0 0 / 0.05);
}

@media (min-width: 640px) {
    .visual-container {
        flex-direction: row;
        align-items: center;
    }
}

.visual-bars {
    flex-grow: 1;
    width: 100%;
}

.visual-bar-item { display: flex; align-items: center; margin-bottom: 0.5rem; }
.visual-bar-label { width: 9rem; font-size: 0.875rem; color: var(--color-text-base); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.visual-bar-wrapper { flex: 1; background-color: #e2e8f0; border-radius: 9999px; height: 1.5rem; position: relative; }
.visual-bar { height: 1.5rem; border-radius: 9999px; transition: width 0.5s ease; }
.visual-bar-text { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; font-size: 0.75rem; font-weight: 700; color: white; }
.bar-total-carbs { background-color: #94a3b8; }
.bar-fiber { background-color: #22c55e; }
.bar-allulose { background-color: #0ea5e9; }
.bar-sugar-alcohols { background-color: #f59e0b; }
.visual-bar-group-deductions { margin-left: 1rem; margin-top: 0.25rem; }
.visual-bar-group-deductions .visual-bar-wrapper { height: 1.25rem; }
.visual-bar-group-deductions .visual-bar { height: 1.25rem; }
.visual-bar-group-deductions .visual-bar-text { justify-content: flex-end; padding-right: 0.5rem; }
.visual-bar-group-deductions .visual-bar-label { width: 8rem; color: var(--color-text-light); }

.visual-result {
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    width: 100%;
    margin-top: 1rem;
}

@media (min-width: 640px) {
    .visual-result {
        width: 33.33%;
        border-left: 1px solid #e2e8f0;
        padding-left: 1rem;
        margin-top: 0;
    }
}

.visual-result-label { font-size: 0.875rem; font-weight: 500; color: var(--color-text-base); }
.net-carbs-value { font-size: 3rem; font-weight: 800; color: var(--color-primary); line-height: 1; margin: 0.25rem 0; }
.visual-result-sublabel { font-size: 0.75rem; color: var(--color-text-extra-light); }


.action-buttons {
    margin-top: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

@media (min-width: 640px) {
    .action-buttons {
        flex-direction: row;
    }
    #log-button { flex-grow: 1; }
}

.secondary-buttons {
    display: flex;
    gap: 0.75rem;
    flex-grow: 1;
}
.secondary-buttons > .btn {
    flex-grow: 1;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    border-radius: 0.375rem;
    border: 1px solid transparent;
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
    cursor: pointer;
    transition: all 0.15s ease-in-out;
    text-decoration: none;
}

.btn:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.4);
}

.btn:disabled {
    cursor: not-allowed;
    opacity: 0.5;
}

.btn .icon {
    width: 1.25rem;
    height: 1.25rem;
    margin-right: 0.5rem;
}

.btn-primary { background-color: var(--color-primary); color: var(--color-bg-white); }
.btn-primary:hover:not(:disabled) { background-color: var(--color-primary-dark); }
.btn-primary:disabled { background-color: var(--color-primary-light); }

.btn-secondary { background-color: var(--color-bg-white); color: var(--color-text-base); border-color: var(--color-border); }
.btn-secondary:hover:not(:disabled) { background-color: #f1f5f9; }

.btn-danger { background-color: var(--color-danger); color: var(--color-bg-white); }
.btn-danger:hover:not(:disabled) { background-color: var(--color-danger-dark); }

.btn-sm { padding: 0.375rem 0.75rem; font-size: 0.75rem; }

/* Tracker Section */
.tracker-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.goal-section { margin-bottom: 1.5rem; }
.progress-info { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 0.25rem; color: var(--color-text-base); }
.progress-label { font-weight: 500; }
#total-logged-carbs { font-weight: 700; color: var(--color-text-dark); }
.progress-bar-container { width: 100%; background-color: #e2e8f0; border-radius: 9999px; height: 0.75rem; }
.progress-bar { height: 100%; border-radius: 9999px; transition: width 0.5s ease-in-out; background-color: var(--color-primary); }
.progress-bar.over-goal { background-color: var(--color-danger); }
.edit-goal-btn { font-size: 0.875rem; color: var(--color-primary); background: none; border: none; cursor: pointer; margin-top: 0.5rem; }
.edit-goal-btn:hover { text-decoration: underline; }

#goal-input-group { margin-top: 1rem; }
#goal-input-group label { display: block; font-size: 0.875rem; font-weight: 500; margin-bottom: 0.25rem; }
.goal-input-controls { display: flex; gap: 0.5rem; }
#daily-goal-input { width: 100%; }

.tracker-list-container {
    max-height: 18rem;
    overflow-y: auto;
    padding-right: 0.5rem;
    margin-right: -0.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.empty-tracker-message { text-align: center; padding: 2.5rem 0; color: var(--color-text-light); }
.empty-tracker-message span { font-size: 0.875rem; color: var(--color-text-extra-light); }

.tracker-entry {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: #f1f5f9;
    padding: 0.75rem;
    border-radius: 0.5rem;
}

.tracker-entry-info .name { font-weight: 600; color: var(--color-text-dark); }
.tracker-entry-info .timestamp { font-size: 0.75rem; color: var(--color-text-light); }
.tracker-entry-details { display: flex; align-items: center; gap: 1rem; }
.tracker-entry-carbs { font-size: 1.125rem; font-weight: 700; color: var(--color-primary); }
.delete-btn { background: none; border: none; cursor: pointer; color: var(--color-text-extra-light); }
.delete-btn:hover { color: var(--color-danger); }
.delete-btn .icon { width: 1.25rem; height: 1.25rem; }

.hidden { display: none !important; }

@media print {
  body * {
    visibility: hidden;
  }
  #print-section, #print-section * {
    visibility: visible;
  }
  #print-section {
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    box-shadow: none;
    border: none;
  }
  .action-buttons {
    display: none;
  }
  .breakdown-container {
    padding-bottom: 0 !important;
    margin-bottom: 0 !important;
  }
}