:root {
    /* Colors */
    --c-indigo-50: #eef2ff; --c-indigo-100: #e0e7ff; --c-indigo-200: #c7d2fe; --c-indigo-500: #6366f1; --c-indigo-600: #4f46e5; --c-indigo-800: #3730a3;
    --c-slate-50: #f8fafc; --c-slate-100: #f1f5f9; --c-slate-200: #e2e8f0; --c-slate-300: #cbd5e1; --c-slate-500: #64748b; --c-slate-600: #475569; --c-slate-700: #334155; --c-slate-800: #1e293b; --c-slate-900: #0f172a;
    --c-teal-500: #14b8a6; --c-teal-600: #0d9488;
    --c-white: #ffffff;
    --c-red-500: #ef4444;

    /* Spacing */
    --space-1: 0.25rem; --space-2: 0.5rem; --space-3: 0.75rem; --space-4: 1rem; --space-6: 1.5rem; --space-8: 2rem;

    /* Font */
    --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
}

.bpc-hidden { display: none !important; }
.bpc-opacity-60 { opacity: 0.6; }
.bpc-text-right { text-align: right; }
.bpc-text-center { text-align: center; }

.bpc-container {
    font-family: var(--font-sans);
    color: var(--c-slate-800);
    width: 100%;
    max-width: 1290px;
    margin-left: auto;
    margin-right: auto;
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-8);
}

.bpc-card {
    background-color: var(--c-white);
    padding: var(--space-6);
    border-radius: 0.75rem; /* rounded-xl */
    box-shadow: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1); /* shadow-lg */
    border: 1px solid var(--c-slate-200);
}

@media (min-width: 640px) {
    .bpc-card { padding: var(--space-8); }
}

.bpc-form-card {
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
}

.bpc-form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-4) var(--space-6);
}
@media (max-width: 640px) { .bpc-form-grid { grid-template-columns: 1fr; } }


.bpc-form-group {
    display: flex;
    flex-direction: column;
}

.bpc-label {
    display: block;
    font-size: 0.875rem;
    line-height: 1.25rem;
    font-weight: 500;
    color: var(--c-slate-700);
    margin-bottom: 0.5rem;
}

.bpc-toggle-group {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    background-color: var(--c-slate-100);
    border-radius: 0.5rem;
    padding: var(--space-1);
}

.bpc-toggle-btn {
    width: 100%;
    padding: 0.5rem 0;
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: 0.375rem;
    transition: color 0.2s, background-color 0.2s;
    border: none;
    cursor: pointer;
    background-color: transparent;
    color: var(--c-slate-600);
}
.bpc-toggle-btn:hover { background-color: var(--c-slate-200); }
.bpc-toggle-btn.active {
    background-color: var(--c-white);
    color: var(--c-indigo-600);
    box-shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
}

.bpc-input {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid var(--c-slate-300);
    border-radius: 0.5rem;
    box-shadow: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    font-size: 1.125rem;
    line-height: 1.75rem;
    box-sizing: border-box;
    -webkit-appearance: none;
    -moz-appearance: textfield;
}
.bpc-input:focus {
    outline: 2px solid transparent;
    outline-offset: 2px;
    border-color: var(--c-indigo-500);
    box-shadow: 0 0 0 2px var(--c-indigo-500);
}

select.bpc-input {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M6 8l4 4 4-4'/%3e%3c/svg%3e");
    background-position: right 0.5rem center;
    background-repeat: no-repeat;
    background-size: 1.5em 1.5em;
    padding-right: 2.5rem;
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
}

.bpc-input-hint {
    margin: 0.5rem 0 0 0;
    font-size: 0.75rem;
    color: var(--c-slate-500);
    line-height: 1.25;
}

.bpc-divider {
    border-color: var(--c-slate-200);
    border-top-width: 1px;
    border-style: solid;
    margin: 0;
}

/* Results Section */
.bpc-results-wrapper {
    display: flex;
    flex-direction: column;
    gap: var(--space-8);
}
.bpc-awaiting-card {
    height: 100%;
    min-height: 300px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
}
.bpc-awaiting-icon-wrapper {
    width: 4rem; height: 4rem;
    background-color: var(--c-indigo-100);
    border-radius: 9999px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
}
.bpc-awaiting-icon { height: 2rem; width: 2rem; color: var(--c-indigo-600); }
.bpc-awaiting-title { font-size: 1.25rem; font-weight: 600; color: var(--c-slate-800); margin: 0; }
.bpc-awaiting-text { color: var(--c-slate-500); margin-top: 0.25rem; }

.bpc-results-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1.5rem;
}
.bpc-results-title { font-size: 1.5rem; line-height: 2rem; font-weight: 700; color: var(--c-slate-900); margin: 0; }
.bpc-results-subtitle { font-size: 0.875rem; color: var(--c-slate-500); margin: 0.25rem 0 0 0; }

.bpc-results-actions { display: flex; align-items: center; gap: var(--space-2); }
.bpc-icon-btn {
    padding: var(--space-2);
    color: var(--c-slate-500);
    border-radius: 9999px;
    transition: color 0.2s, background-color 0.2s;
    border: none;
    background: transparent;
    cursor: pointer;
}
.bpc-icon-btn:hover { background-color: var(--c-slate-100); color: var(--c-slate-800); }
.bpc-icon { height: 1.25rem; width: 1.25rem; }

.bpc-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    font-weight: 600;
    font-size: 0.875rem;
    padding: var(--space-2) var(--space-4);
    border-radius: 0.375rem; /* rounded-md */
    border: 1px solid transparent;
    cursor: pointer;
    transition: background-color 0.2s, border-color 0.2s, color 0.2s;
}
.bpc-btn .bpc-icon { height: 1rem; width: 1rem; }
.bpc-btn-secondary {
    background-color: var(--c-slate-100);
    border-color: var(--c-slate-200);
    color: var(--c-slate-700);
}
.bpc-btn-secondary:hover {
    background-color: var(--c-slate-200);
    color: var(--c-slate-800);
}

.bpc-summary-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-4);
    margin-bottom: 2rem;
}
@media (min-width: 768px) { .bpc-summary-grid { grid-template-columns: 1fr 1fr; } }

.bpc-summary-card {
    text-align: center;
    border: 2px dashed;
    border-radius: 0.5rem;
    padding: 1.5rem;
}
.bpc-summary-card-primary { background-color: var(--c-indigo-50); border-color: var(--c-indigo-200); }
.bpc-summary-card-secondary { background-color: var(--c-slate-50); border-color: var(--c-slate-200); display: flex; flex-direction: column; justify-content: center; }
.bpc-summary-label { font-size: 1rem; font-weight: 500; }
.bpc-summary-card-primary .bpc-summary-label { color: var(--c-indigo-800); }
.bpc-summary-card-secondary .bpc-summary-label { color: var(--c-slate-800); }

.bpc-summary-value-large { font-size: 3rem; line-height: 1; font-weight: 800; margin: 0.5rem 0; color: var(--c-indigo-600); }
.bpc-summary-unit { font-size: 1.5rem; font-weight: 600; margin-left: 0.5rem; color: var(--c-indigo-500); }
.bpc-summary-value-medium { font-size: 2.25rem; line-height: 2.5rem; font-weight: 800; margin: 0.5rem 0; color: var(--c-slate-600); }
.bpc-summary-placeholder { font-size: 0.875rem; color: var(--c-slate-500); margin: 0.5rem 0 0 0; padding-top: 0.75rem;}

.bpc-table-wrapper { margin-top: 2rem; overflow-x: auto;}
.bpc-section-title { font-size: 1.125rem; line-height: 1.75rem; font-weight: 600; color: var(--c-slate-800); margin-bottom: 1rem; }
.bpc-table { width: 100%; text-align: left; border-collapse: collapse; }
.bpc-table thead { border-bottom: 2px solid var(--c-slate-200); }
.bpc-table th { padding: 0.75rem; font-size: 0.875rem; font-weight: 600; color: var(--c-slate-600); }
.bpc-table-row { border-bottom: 1px solid var(--c-slate-100); }
.bpc-table-row:last-child { border-bottom: 0; }
.bpc-table td { padding: 0.5rem 0.75rem; vertical-align: middle;}
.bpc-table td:first-child { font-weight: 500; color: var(--c-slate-800); }

.bpc-plate-btn {
    padding: var(--space-2);
    color: var(--c-slate-400);
    border-radius: 9999px;
    transition: color 0.2s, background-color 0.2s;
    border: none;
    background: transparent;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}
.bpc-plate-btn:hover { background-color: var(--c-indigo-50); color: var(--c-indigo-500); }
.bpc-plate-btn .bpc-icon { height: 1.5rem; width: 1.5rem; }


.bpc-bar-container { display: flex; align-items: center; gap: 1rem; }
.bpc-bar-label { font-family: monospace, monospace; font-size: 0.875rem; font-weight: 700; color: var(--c-indigo-600); width: 6rem; text-align: left; flex-shrink: 0;}
.bpc-bar-track { width: 100%; background-color: var(--c-slate-200); border-radius: 9999px; height: 0.625rem; overflow: hidden; }
.bpc-bar-fill { background-color: var(--c-indigo-500); height: 100%; border-radius: 9999px; transition: width 0.3s ease-in-out; }

/* Warmup */
.bpc-section-header { margin-bottom: 1rem; }
.bpc-warmup-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.5rem;
    margin-top: 1rem;
}
@media (min-width: 640px) { .bpc-warmup-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
@media (min-width: 768px) { .bpc-warmup-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); } }
@media (min-width: 1024px) { .bpc-warmup-grid { grid-template-columns: repeat(6, minmax(0, 1fr)); } }

.bpc-warmup-set {
    padding: 0.75rem;
    background-color: var(--c-slate-50);
    border-radius: 0.5rem;
    text-align: center;
    border: 1px solid var(--c-slate-200);
}
.bpc-warmup-percentage { font-size: 0.875rem; color: var(--c-slate-500); }
.bpc-warmup-weight { font-weight: 700; font-size: 1.25rem; color: var(--c-teal-600); }
.bpc-warmup-reps { font-size: 0.875rem; color: var(--c-slate-600); }


/* Plate Modal */
.bpc-modal-overlay {
    position: fixed;
    inset: 0;
    z-index: 50;
    background-color: rgba(15, 23, 42, 0.6);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}
.bpc-modal-content {
    background-color: var(--c-white);
    border-radius: 0.75rem;
    box-shadow: 0 25px 50px -12px rgb(0 0 0 / 0.25);
    width: 100%;
    max-width: 400px;
    position: relative;
    border: 1px solid var(--c-slate-200);
}
.bpc-modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--c-slate-200);
}
.bpc-modal-title {
    margin: 0;
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--c-slate-800);
}
.bpc-modal-body {
    padding: 1.5rem;
}
.bpc-modal-summary {
    display: flex;
    justify-content: space-between;
    font-size: 1rem;
    color: var(--c-slate-600);
    padding-bottom: 1rem;
    border-bottom: 1px dashed var(--c-slate-200);
    margin-bottom: 1rem;
}
.bpc-modal-summary span:first-child { font-weight: 500; }
.bpc-modal-summary span:last-child { font-weight: 700; color: var(--c-slate-800); }

.bpc-modal-subtitle {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--c-indigo-600);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin: 0 0 0.75rem 0;
}
.bpc-plate-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}
.bpc-plate-list li {
    background-color: var(--c-slate-50);
    padding: 0.75rem 1rem;
    border-radius: 0.375rem;
    border: 1px solid var(--c-slate-200);
    font-weight: 500;
    color: var(--c-slate-700);
}
.bpc-modal-remainder {
    display: flex;
    justify-content: space-between;
    font-size: 0.875rem;
    color: var(--c-slate-500);
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px dashed var(--c-slate-200);
}
.bpc-modal-error {
    text-align: center;
    color: var(--c-red-500);
    font-weight: 500;
}

/* Print Styles */
@media print {
    body, html {
      background: #fff;
    }
    body * { visibility: hidden; }
    .bpc-container {
        display: block;
    }
    #print-section, #print-section * { visibility: visible; }
    #print-section {
        position: absolute;
        left: 0;
        top: 0;
        width: 100%;
        box-shadow: none;
        border: none;
        padding: 0;
    }
    .bpc-card, .bpc-results-wrapper {
        box-shadow: none;
        border: none;
        padding: 0;
    }
    .bpc-results-actions, .bpc-plate-btn { display: none; }
    .bpc-bar-track {
        background-color: var(--c-slate-200) !important;
        -webkit-print-color-adjust: exact; 
        print-color-adjust: exact;
    }
    .bpc-bar-fill {
        background-color: var(--c-indigo-500) !important;
        -webkit-print-color-adjust: exact;
        print-color-adjust: exact;
    }
    .bpc-table td, .bpc-table th {
        padding-left: 0;
        padding-right: 0;
    }
    .bpc-table th:nth-child(3) { display: none; } /* Hide plate column */
    .bpc-table td:nth-child(3) { display: none; } /* Hide plate column */
}