/* IWS Calculator Styles - Light Theme */

:root {
    --bg-body: #E0E5D5;
    --bg-form: #FFFFFF;
    --bg-card: #FFFFFF;
    --bg-input: #F0F2EC;
    --bg-header: #203C23;
    --bg-panel-header: #203C23;
    --bg-result-header: #203C23;
    --border-color: #C5C9BC;
    --text-dark-bg: #FDFFFB;
    --text-light-bg: #1A253A;
    --text-muted: #656152;
    --btn-primary-bg: #656152;
    --btn-primary-hover: #4A4A3D;
    --btn-secondary-bg: #F0F2EC;
    --btn-secondary-hover: #D8DCD0;
    --accent-header: #203C23;
    --accent-header-hover: #152815;
    --danger: #c0392b;
    --font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

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

body {
    font-family: var(--font-family);
    background-color: var(--bg-body);
    color: var(--text-light-bg);
    line-height: 1.6;
    min-height: 100vh;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem 1rem;
}

/* Header */
.header {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    margin-bottom: 2rem;
    padding: 1.5rem 2rem;
    background-color: var(--bg-header);
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

.logo {
    height: 104px;
    width: auto;
    border-radius: 4px;
    object-fit: contain;
}

.header h1 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-dark-bg);
    letter-spacing: 0.5px;
}

/* Form Section */
.form-section {
    background-color: var(--bg-form);
    border-radius: 12px;
    padding: 2rem;
    margin-bottom: 2rem;
    border: 1px solid var(--border-color);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    font-weight: 600;
    color: var(--text-muted);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.input-wrapper {
    display: flex;
    align-items: center;
    background-color: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    overflow: hidden;
    transition: border-color 0.2s ease;
}

.input-wrapper:focus-within {
    border-color: var(--btn-primary-bg);
}

.input-wrapper input,
.form-group select {
    flex: 1;
    background: transparent;
    border: none;
    padding: 0.75rem 1rem;
    color: var(--text-light-bg);
    font-size: 1rem;
    outline: none;
    width: 100%;
}

.form-group.full-width {
    grid-column: 1 / -1;
}

.form-group select {
    background-color: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    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='%23656152' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
}

.input-wrapper .unit {
    padding: 0.75rem 1rem;
    color: var(--text-muted);
    font-size: 0.85rem;
    border-left: 1px solid var(--border-color);
    background-color: rgba(0, 0, 0, 0.03);
    white-space: nowrap;
}

/* Radio Buttons */
.radio-group {
    display: flex;
    gap: 1.5rem;
    padding: 0.5rem 0;
}

.radio-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    font-weight: 500;
    color: var(--text-light-bg);
    text-transform: none;
    letter-spacing: normal;
}

.radio-label input[type="radio"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
    accent-color: var(--btn-primary-bg);
}

/* Buttons */
.button-row {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.btn {
    padding: 0.875rem 1.5rem;
    font-size: 1rem;
    font-weight: 600;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-primary {
    background-color: var(--btn-primary-bg);
    color: var(--text-dark-bg);
}

.btn-primary:hover {
    background-color: var(--btn-primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(101, 97, 82, 0.3);
}

.btn-secondary {
    background-color: var(--btn-secondary-bg);
    color: var(--text-light-bg);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background-color: var(--btn-secondary-hover);
    border-color: var(--text-muted);
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
    box-shadow: none !important;
}

#roofPlanBtn:enabled {
    background-color: #263B25;
    color: #FFFFFF;
    border-color: #263B25;
}

#roofPlanBtn:enabled:hover {
    background-color: rgb(38, 59, 37);
    border-color: rgb(38, 59, 37);
}

.btn-icon {
    font-size: 0.75rem;
    transition: transform 0.2s ease;
}

.btn[aria-expanded="true"] .btn-icon {
    transform: rotate(180deg);
}

.btn-copy {
    background-color: var(--btn-secondary-bg);
    color: var(--text-light-bg);
    border: 1px solid var(--border-color);
    font-size: 0.9rem;
    padding: 0.625rem 1.25rem;
    margin-top: 0.5rem;
    align-self: flex-start;
}

.btn-copy:hover {
    background-color: var(--btn-secondary-hover);
    border-color: var(--text-muted);
}

.btn-copy.copied {
    background-color: var(--accent-header);
    color: var(--text-dark-bg);
    border-color: var(--accent-header);
}

/* IWS Diagram Panel */
.roof-plan-panel {
    margin-top: 1.5rem;
    background-color: var(--bg-form);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    overflow: hidden;
    transition: all 0.3s ease;
}

.roof-plan-panel.hidden {
    display: none;
}

.panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.5rem;
    background-color: var(--bg-panel-header);
    border-bottom: 1px solid var(--border-color);
}

.panel-header h3 {
    color: var(--text-dark-bg);
    font-size: 1.1rem;
}

.panel-close {
    background: none;
    border: none;
    color: var(--text-dark-bg);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
    transition: all 0.2s ease;
}

.panel-close:hover {
    background-color: var(--danger);
    color: white;
}

/* Diagram with overlay labels — positions derived from number_locations.png gray-box analysis */
.diagram-container {
    position: relative;
    width: 100%;
    max-width: 560px;
    margin: 1.5rem auto;
}

.diagram-container .diagram-img {
    width: 100%;
    display: block;
    border-radius: 4px;
}

.diagram-label {
    position: absolute;
    transform: translate(-50%, -50%);
    font-weight: 700;
    font-size: 0.85rem;
    color: #4a3c2a;
    text-shadow:
        -1px -1px 0 rgba(255, 255, 255, 0.5),
        1px -1px 0 rgba(255, 255, 255, 0.5),
        -1px 1px 0 rgba(255, 255, 255, 0.5),
        1px 1px 0 rgba(255, 255, 255, 0.5),
        0 0 3px rgba(255, 255, 255, 0.8);
    white-space: nowrap;
    pointer-events: none;
}

/* Label positions mapped to VG_iws_diagram.png visual landmarks */
#labelCoverage { top: 30%; left: 51%; }       /* on diagonal roof-slope dashed line */
#labelRise { top: 36%; left: 75%; }           /* left of vertical right-side dashed line */
#labelPitch { top: 52%; left: 53%; }           /* near roof-pitch arc */
#labelInsideWall { top: 55%; left: 65%; }      /* right of horizontal dashed line */
#labelSoffit { top: 67%; left: 34%; }          /* under left roof overhang */
#labelWallThickness { top: 95%; left: 47%; }   /* at bottom of wall section */

/* Save Diagram Button */
.panel-footer {
    padding: 1rem 1.5rem;
    display: flex;
    justify-content: center;
    border-top: 1px solid var(--border-color);
    background-color: var(--bg-form);
}

.btn-save {
    background-color: var(--btn-primary-bg);
    color: var(--text-dark-bg);
    border: 1px solid var(--btn-primary-bg);
}

.btn-save:hover {
    background-color: var(--btn-primary-hover);
    border-color: var(--btn-primary-hover);
}

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

/* Results Section */
.results-section {
    animation: fadeIn 0.4s ease;
}

.results-section.hidden {
    display: none;
}

.results-section h2 {
    color: var(--accent-header);
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 0.75rem;
}

.results-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 1.5rem;
}

.result-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    overflow: hidden;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.result-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}

.result-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem 1.5rem;
    background-color: var(--bg-result-header);
    border-bottom: 1px solid var(--border-color);
}

.result-header h3 {
    color: var(--text-dark-bg);
    font-size: 1.2rem;
}

.result-total {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-dark-bg);
}

.result-body {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.support-text {
    color: var(--text-muted);
    font-style: italic;
    line-height: 1.7;
    padding: 1rem;
    background-color: var(--bg-body);
    border-radius: 8px;
    border-left: 3px solid var(--accent-header);
}

.calc-line {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--border-color);
}

.calc-line:last-child {
    border-bottom: none;
}

.calc-line strong {
    color: var(--accent-header);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.calc-line span {
    color: var(--text-light-bg);
    font-size: 0.95rem;
}

/* History Section */
.history-section {
    animation: fadeIn 0.4s ease;
}

.history-section.hidden {
    display: none;
}

.history-section h2 {
    color: var(--accent-header);
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 0.75rem;
}

.history-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.history-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.25rem 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.history-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}

.history-info {
    flex: 1;
    min-width: 0;
}

.history-title {
    font-weight: 700;
    font-size: 1rem;
    color: var(--text-light-bg);
    margin-bottom: 0.25rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.history-address {
    font-size: 0.85rem;
    color: var(--text-muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.history-meta {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.history-totals {
    display: flex;
    gap: 1.5rem;
    font-size: 0.9rem;
}

.history-totals span {
    color: var(--text-light-bg);
}

.history-totals strong {
    color: var(--accent-header);
}

.history-time {
    font-size: 0.8rem;
    color: var(--text-muted);
    white-space: nowrap;
}

.btn-load {
    background-color: var(--btn-secondary-bg);
    color: var(--text-light-bg);
    border: 1px solid var(--border-color);
    font-size: 0.9rem;
    padding: 0.625rem 1.25rem;
    white-space: nowrap;
}

.btn-load:hover {
    background-color: var(--btn-secondary-hover);
    border-color: var(--text-muted);
}

.btn-delete {
    background-color: transparent;
    color: var(--text-muted);
    border: 1px solid var(--border-color);
    font-size: 1.1rem;
    font-weight: 700;
    padding: 0.375rem 0.625rem;
    line-height: 1;
    white-space: nowrap;
    border-radius: 6px;
}

.btn-delete:hover {
    background-color: var(--danger);
    color: #fff;
    border-color: var(--danger);
}

/* Footer */
.footer {
    text-align: center;
    padding: 2rem 0;
    color: var(--text-muted);
    font-size: 0.85rem;
    border-top: 1px solid var(--border-color);
    margin-top: 2rem;
}

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

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive */
@media (max-width: 768px) {
    .header {
        flex-direction: column;
        text-align: center;
    }

    .logo {
        height: 60px;
    }

    .header h1 {
        font-size: 1.5rem;
    }

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

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

    .button-row {
        flex-direction: column;
    }

    .btn {
        width: 100%;
        justify-content: center;
    }

    .history-card {
        flex-direction: column;
        align-items: flex-start;
    }

    .history-meta {
        width: 100%;
        justify-content: space-between;
    }

    .history-totals {
        flex-direction: column;
        gap: 0.25rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 1rem 0.5rem;
    }

    .form-section {
        padding: 1.5rem 1rem;
    }

    .result-header {
        flex-direction: column;
        gap: 0.5rem;
        text-align: center;
    }
}