/* Platinum Paving Calculators - Public Styles */
/* Version 0.1.0 */

/* Default variables - can be overridden by admin settings */
:root {
    --ppc-font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, "Open Sans", "Helvetica Neue", sans-serif;
    --ppc-base-font-size: 18px;
    --ppc-spacing-unit: 1rem; /* 16px */
    --ppc-card-background: #ffffff;
    --ppc-card-shadow: 0 4px 8px rgba(0,0,0,0.1);
    --ppc-card-padding: calc(var(--ppc-spacing-unit) * 1.5); /* 24px */
    --ppc-card-border-radius: 8px;
    --ppc-text-color: #333333;
    --ppc-label-color: #555555;
    --ppc-input-border-color: #cccccc;
    --ppc-input-focus-border-color: #0073aa; /* WordPress blue */
    --ppc-accent-color: var(--ppc-input-focus-border-color);
    --ppc-result-text-color: var(--ppc-accent-color);
    --ppc-note-text-color: #777777;
    --ppc-grid-gap: var(--ppc-spacing-unit); /* 16px */
}

body {
    font-family: var(--ppc-font-family);
    font-size: var(--ppc-base-font-size);
    line-height: 1.6;
    color: var(--ppc-text-color);
}

/* Global container for multiple calculators if used */
.ppc-all-calculators-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(450px, 1fr)); /* Increased min-width from 300px */
    gap: calc(var(--ppc-spacing-unit) * 1.5);
}

/* Individual Calculator Card */
.ppc-calculator {
    background-color: var(--ppc-card-background);
    box-shadow: var(--ppc-card-shadow);
    padding: var(--ppc-card-padding);
    border-radius: var(--ppc-card-border-radius);
    margin-bottom: calc(var(--ppc-spacing-unit) * 2);
}

.ppc-calculator header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--ppc-card-padding);
    border-bottom: 1px solid var(--ppc-input-border-color);
    padding-bottom: var(--ppc-spacing-unit);
}

.ppc-calculator header h3 {
    margin: 0;
    font-size: 1.5rem; /* Increased from 1.25rem (will be 27px at 18px base) */
    color: var(--ppc-accent-color);
}

/* Unit Toggle Button */
.unit-toggle {
    background: transparent;
    border: 1px solid var(--ppc-input-border-color);
    padding: calc(var(--ppc-spacing-unit) * 0.375) calc(var(--ppc-spacing-unit) * 0.75); /* 6px 12px */
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.875rem; /* 14px */
}

.unit-toggle .unit-metric {
    display: none; /* Show imperial by default */
}
.unit-toggle.metric-active .unit-imperial {
    display: none;
}
.unit-toggle.metric-active .unit-metric {
    display: inline;
}

/* Input Grid */
.ppc-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--ppc-grid-gap);
    margin-bottom: var(--ppc-card-padding);
}

.ppc-input-half {
    /* No specific style needed if grid handles it, but can be used for finer control */
}
.ppc-input-third {
    /* For 3-column layouts on wider screens if needed */
}
.ppc-input-full {
   grid-column: 1 / -1; /* Span full width */
}

.ppc-field-label {
    display: flex;
    flex-direction: column;
    gap: calc(var(--ppc-spacing-unit) * 0.25); /* 4px */
}

.ppc-field-label .ppc-label-text {
    font-size: 0.9rem; /* Increased from 0.875rem */
    color: var(--ppc-label-color);
    margin-bottom: calc(var(--ppc-spacing-unit) * 0.125); /* 2px */
}

.ppc-field {
    padding: calc(var(--ppc-spacing-unit) * 0.5) calc(var(--ppc-spacing-unit) * 0.75); /* 8px 12px */
    border: 1px solid var(--ppc-input-border-color);
    border-radius: 4px;
    font-size: 1.05rem; /* Increased from 1rem */
    width: 100%; /* Take full width of grid cell */
    box-sizing: border-box;
}

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

/* For number inputs, hide spinners for a cleaner look if desired */
.ppc-field[type="number"]::-webkit-inner-spin-button,
.ppc-field[type="number"]::-webkit-outer-spin-button {
    -webkit-appearance: none;
    margin: 0;
}
.ppc-field[type="number"] {
    -moz-appearance: textfield; /* Firefox */
}

.ppc-unit {
    font-size: 0.8125rem; /* 13px */
    color: var(--ppc-label-color);
    margin-top: calc(var(--ppc-spacing-unit) * 0.25); /* 4px */
}

.ppc-field-container {
    display: flex;
    flex-direction: column; /* Stack label, input, unit */
}

/* Input group for input + unit span */
.ppc-input-group {
    display: flex;
    align-items: center; /* Vertically align input and unit */
    position: relative; /* For positioning unit inside if desired */
}

.ppc-input-group .ppc-field {
    flex-grow: 1;
}

.ppc-input-group .ppc-unit {
    margin-left: calc(var(--ppc-spacing-unit) * 0.5); /* 8px */
    white-space: nowrap;
    font-size: 0.875rem; /* 14px */
}

/* Result Display */
.result {
    font-size: 1.75rem; /* Increased from 1.5rem */
    font-weight: bold;
    color: var(--ppc-result-text-color);
    margin-top: var(--ppc-spacing-unit);
    margin-bottom: calc(var(--ppc-spacing-unit) * 0.5);
    text-align: right;
}

.result .ppc-result-value {
    /* Styles for the number itself */
}

.result .ppc-result-unit {
    font-size: 1rem; /* 16px */
    font-weight: normal;
    margin-left: calc(var(--ppc-spacing-unit) * 0.25);
    color: var(--ppc-label-color);
}

/* Note Below Result */
.note, .ppc-note {
    font-size: 0.9rem; /* Increased from 0.875rem */
    color: var(--ppc-note-text-color);
    margin-top: 0;
    margin-bottom: 0; /* Adjust as needed */
    text-align: right;
}

/* Styles for info_text fields */
.ppc-info-field .ppc-label-text + span {
    font-style: italic;
    color: var(--ppc-note-text-color);
    font-size: 0.875rem;
}

/* Responsive Adjustments */
@media (max-width: 768px) {
    .ppc-grid {
        grid-template-columns: 1fr; /* Single column for inputs on smaller screens */
    }

    .ppc-calculator header {
        flex-direction: column;
        align-items: flex-start;
        gap: calc(var(--ppc-spacing-unit) * 0.5);
    }

    .result,
    .note, .ppc-note {
        text-align: left;
    }
}

@media (max-width: 480px) {
    :root {
        --ppc-card-padding: var(--ppc-spacing-unit);
        /* Re-evaluate base font size for very small screens if 18px is too large */
        /* --ppc-base-font-size: 16px; /* Optionally reduce for very small screens */
    }
    .ppc-calculator header h3 {
        font-size: 1.25rem; /* Adjusted from 1.125rem, considering new base */
    }
    .result {
        font-size: 1.5rem; /* Adjusted from 1.25rem */
    }
}