/* ===== Reset & Base ===== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

:root {
    --blue: #2B6CB0;
    --blue-dark: #215387;
    --navy: #1A202C;
    --gray-800: #2D3748;
    --gray-700: #4A5568;
    --gray-600: #718096;
    --gray-200: #EDF2F7;
    --gray-100: #F7FAFC;
    --white: #ffffff;
    --green: #13612e;
    --red: #b82105;
    --orange: #f5a524;
    --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
}

body {
    font-family: var(--font);
    font-size: 16px;
    line-height: 1.6;
    color: var(--gray-800);
    background: var(--gray-100);
    -webkit-font-smoothing: antialiased;
}

/* ===== Header ===== */
.header {
    background: var(--navy);
    color: var(--white);
    padding: 2rem 1.5rem;
    text-align: center;
}

.header h1 {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 0.25rem;
}

.header .subtitle {
    font-size: 15px;
    color: #A0AEC0;
    font-weight: 400;
    margin-bottom: 0.75rem;
}

.reset-btn {
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 0.375rem;
    padding: 0.4rem 1rem;
    font-size: 13px;
    font-family: var(--font);
    color: rgba(255, 255, 255, 0.7);
    cursor: pointer;
    transition: all 0.15s ease;
}

.reset-btn:hover {
    border-color: rgba(255, 255, 255, 0.6);
    color: var(--white);
    background: rgba(255, 255, 255, 0.1);
}

/* ===== Container ===== */
.container {
    max-width: 900px;
    margin: 0 auto;
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

/* ===== Cards ===== */
.card {
    background: var(--white);
    border-radius: 0.5rem;
    padding: 1.5rem 2rem;
    box-shadow: 0 1px 3px 0 rgba(18, 18, 23, 0.1), 0 1px 2px 0 rgba(18, 18, 23, 0.06);
}

.card h2 {
    font-size: 20px;
    font-weight: 700;
    color: var(--navy);
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--gray-200);
}

.card h3 {
    font-size: 16px;
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: 0.75rem;
}

.card-description {
    font-size: 14px;
    color: var(--gray-600);
    margin-bottom: 1rem;
}

/* ===== Input Groups ===== */
.input-group {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.input-group label {
    font-size: 14px;
    font-weight: 500;
    color: var(--gray-700);
}

.input-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

/* ===== Dollar & Percent Inputs ===== */
.dollar-input,
.percent-input {
    position: relative;
    display: flex;
    align-items: center;
}

.dollar-sign {
    position: absolute;
    left: 0.75rem;
    color: var(--gray-600);
    font-size: 14px;
    pointer-events: none;
}

.percent-sign {
    position: absolute;
    right: 0.75rem;
    color: var(--gray-600);
    font-size: 14px;
    pointer-events: none;
}

input[type="text"],
input[type="number"],
select {
    width: 100%;
    padding: 0.5rem 0.75rem;
    border: 1px solid #CBD5E0;
    border-radius: 0.375rem;
    font-size: 15px;
    font-family: var(--font);
    color: var(--gray-800);
    background: var(--white);
    transition: border-color 0.15s ease;
}

.dollar-input input {
    padding-left: 1.75rem;
}

.percent-input input {
    padding-right: 1.75rem;
}

input:focus,
select:focus {
    outline: none;
    border-color: var(--blue);
    box-shadow: 0 0 0 3px rgba(43, 108, 176, 0.15);
}

input[readonly] {
    background: var(--gray-200);
    color: var(--gray-600);
    cursor: default;
}

.dollar-input.readonly input {
    background: var(--gray-200);
    color: var(--gray-700);
    font-weight: 500;
}

select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%234A5568' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    padding-right: 2rem;
}

/* Hide number input spinners */
input[type="number"]::-webkit-inner-spin-button,
input[type="number"]::-webkit-outer-spin-button {
    -webkit-appearance: none;
    margin: 0;
}
input[type="number"] {
    -moz-appearance: textfield;
}

/* ===== Sources & Uses ===== */
.sources-uses-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

.su-column h3 {
    font-size: 15px;
    font-weight: 600;
    color: var(--blue);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 0.75rem;
}

.su-row {
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
    margin-bottom: 0.75rem;
}

.su-row label {
    font-size: 13px;
    font-weight: 500;
    color: var(--gray-700);
}

.su-totals-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    border-top: 2px solid var(--navy);
    margin-top: 0.75rem;
}

.su-total {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 0;
    font-weight: 700;
    font-size: 15px;
    color: var(--navy);
}

/* ===== Add / Remove Buttons ===== */
.add-btn,
.remove-btn {
    background: none;
    border: 1px dashed #CBD5E0;
    border-radius: 0.375rem;
    padding: 0.4rem 0.75rem;
    font-size: 13px;
    font-family: var(--font);
    color: var(--blue);
    cursor: pointer;
    margin-top: 0.25rem;
    transition: all 0.15s ease;
}

.add-btn:hover {
    border-color: var(--blue);
    background: rgba(43, 108, 176, 0.05);
}

.remove-btn {
    color: var(--red);
    border-color: transparent;
}

.remove-btn:hover {
    border-color: var(--red);
    background: rgba(184, 33, 5, 0.05);
}

/* ===== Warning ===== */
.warning {
    background: #FFF5F5;
    border: 1px solid #FEB2B2;
    color: var(--red);
    padding: 0.5rem 0.75rem;
    border-radius: 0.375rem;
    font-size: 13px;
    font-weight: 500;
    margin-top: 0.75rem;
}

/* ===== Debt Cards ===== */
.debt-card {
    background: var(--gray-100);
    border: 1px solid var(--gray-200);
    border-radius: 0.375rem;
    padding: 1rem 1.25rem;
    margin-bottom: 1rem;
}

.debt-card:last-child {
    margin-bottom: 0;
}

.debt-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
}

.debt-grid .input-group:first-child {
    grid-column: 1 / -1;
}

/* ===== Help Link ===== */
.help-link {
    font-size: 12px;
    color: var(--blue);
    text-decoration: none;
    font-weight: 400;
    margin-left: 0.25rem;
}

.help-link:hover {
    text-decoration: underline;
    color: var(--blue-dark);
}

/* ===== Bridge Table ===== */
.bridge-table {
    width: 100%;
    border-collapse: collapse;
}

.bridge-row td {
    padding: 0.5rem 0;
    vertical-align: middle;
}

.bridge-row-readonly .bridge-value {
    font-weight: 600;
    color: var(--navy);
    font-size: 15px;
}

.bridge-label {
    font-size: 14px;
    font-weight: 500;
    color: var(--gray-700);
    padding-right: 1rem;
}

.bridge-value {
    text-align: right;
    font-size: 15px;
    font-weight: 600;
    color: var(--navy);
    white-space: nowrap;
    width: 180px;
}

.bridge-input {
    width: 180px;
}

.bridge-input .dollar-input input {
    text-align: right;
    padding-right: 0.75rem;
}

.bridge-total td {
    padding: 0.75rem 0;
    border-top: 2px solid var(--navy);
    font-weight: 700;
    font-size: 16px;
    color: var(--navy);
}

.bridge-total .bridge-value {
    font-size: 16px;
    font-weight: 700;
}

.bridge-margin-row td {
    padding: 0.5rem 0;
    font-size: 14px;
    color: var(--gray-700);
}

.bridge-margin-row .bridge-value {
    font-size: 15px;
    font-weight: 600;
}

/* ===== Margin Popup ===== */
.margin-popup {
    margin-top: 0.75rem;
    padding: 0.75rem 1rem;
    border-radius: 0.375rem;
    font-size: 13px;
    line-height: 1.5;
    font-weight: 500;
}

.margin-popup.popup-yellow {
    background: #FFFFF0;
    border: 1px solid #ECC94B;
    color: #744210;
}

.margin-popup.popup-green {
    background: #F0FFF4;
    border: 1px solid #68D391;
    color: #22543D;
}

/* ===== Results Card ===== */
.results-card {
    border-top: 3px solid var(--blue);
}

.results-card h2 {
    color: var(--blue);
    border-bottom-color: var(--blue);
}

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

.result-item {
    padding: 1rem;
    background: var(--gray-100);
    border-radius: 0.375rem;
    text-align: center;
}

.result-label {
    font-size: 13px;
    font-weight: 500;
    color: var(--gray-600);
    margin-bottom: 0.25rem;
}

.result-value {
    font-size: 24px;
    font-weight: 700;
    color: var(--navy);
}

/* ===== Investor Terms ===== */
.investor-terms {
    display: flex;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
    padding: 0.5rem 0.75rem;
    background: var(--gray-100);
    border-radius: 0.375rem;
    border: 1px solid var(--gray-200);
}

.investor-term {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
}

.investor-term label {
    font-size: 12px;
    font-weight: 500;
    color: var(--gray-600);
}

.investor-term input {
    font-size: 14px;
    padding: 0.35rem 0.5rem;
}

.multiple-input {
    position: relative;
    display: flex;
    align-items: center;
}

.multiple-sign {
    position: absolute;
    right: 0.75rem;
    color: var(--gray-600);
    font-size: 14px;
    pointer-events: none;
}

.multiple-input input {
    padding-right: 1.75rem;
}

/* ===== Cap Table ===== */
.cap-table {
    width: 100%;
    border-collapse: collapse;
}

.cap-table th {
    text-align: left;
    font-size: 12px;
    font-weight: 600;
    color: var(--blue);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 0.5rem 0.75rem;
    border-bottom: 2px solid var(--gray-200);
}

.cap-table th.cap-pct {
    text-align: right;
}

.cap-table td {
    padding: 0.5rem 0.75rem;
    font-size: 14px;
    color: var(--gray-800);
    border-bottom: 1px solid var(--gray-200);
}

.cap-table td:not(.cap-party):not(:first-child) {
    text-align: right;
    font-weight: 500;
    font-variant-numeric: tabular-nums;
}

.cap-table .cap-na {
    color: var(--gray-200);
}

.cap-debt-row td {
    color: var(--gray-600);
}

.cap-total-row td {
    font-weight: 700;
    color: var(--navy);
    border-bottom: none;
    border-top: 2px solid var(--navy);
    padding-top: 0.75rem;
}

/* ===== Footer ===== */
.footer {
    text-align: center;
    padding: 1.5rem;
    font-size: 13px;
    color: var(--gray-600);
}

.footer a {
    color: var(--blue);
    text-decoration: none;
}

.footer a:hover {
    text-decoration: underline;
}

/* ===== Utility ===== */
.hidden {
    display: none !important;
}

/* ===== Responsive ===== */
@media (max-width: 640px) {
    .header h1 {
        font-size: 22px;
    }

    .container {
        padding: 1rem;
    }

    .card {
        padding: 1.25rem;
    }

    .sources-uses-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .su-totals-row {
        grid-template-columns: 1fr;
        gap: 0;
    }

    .input-row {
        grid-template-columns: 1fr;
    }

    .debt-grid {
        grid-template-columns: 1fr;
    }

    .results-grid {
        grid-template-columns: 1fr;
    }

    .investor-terms {
        flex-direction: column;
    }
}