/**
 * Aspect Ratio Calculator Styles
 * 가로세로 비율 계산기 전용 스타일
 *
 * @package Zipper
 */

.arc-hidden,
.arc-waiting[hidden] {
    display: none !important;
}

.arc-intro {
    display: grid;
    gap: 10px;
}

.arc-lead {
    margin: 0 0 4px;
    font-size: 15px;
    line-height: 1.7;
    color: #5f5a56;
}

#arcCalculator .tool-layout-split {
    grid-template-columns: minmax(0, 360px) minmax(0, 1fr);
    gap: 18px;
    align-items: start;
}

#arcCalculator .tool-layout-input {
    max-width: 360px;
}

#arcCalculator .tool-layout-input,
#arcCalculator .tool-layout-result,
.arc-section,
.arc-field-grid,
.arc-kpi-grid,
.arc-support-grid,
.arc-input-wrap,
.arc-preview-card,
.arc-preview-grid,
.arc-table-wrap,
.arc-ratio-editor,
.arc-btn-group {
    min-width: 0;
}

.arc-section {
    display: flex;
    flex-direction: column;
    gap: 14px;
    padding: 18px;
    border: 1px solid #e8e4dc;
    border-radius: 14px;
    background: #fff;
    box-shadow: 0 1px 4px rgba(45, 42, 38, 0.06);
    transition: box-shadow 0.2s ease, border-color 0.2s ease;
}

.arc-section:hover {
    box-shadow: 0 2px 8px rgba(45, 42, 38, 0.10);
}

.arc-target-section,
.arc-tip-section,
.arc-table-section {
    background: #fcfdff;
}

.arc-section-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    flex-wrap: wrap;
}

.arc-section-title,
.arc-preview-label,
.arc-preview-frame-label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 15px;
    font-weight: 700;
    color: #2d2a26;
}

.arc-section-title i,
.arc-live-pill i,
.arc-waiting i,
.arc-preview-frame-label::before {
    color: #4e7edc;
}

.arc-preview-frame-label::before {
    content: '•';
}

.arc-live-pill,
.arc-input-unit,
.arc-status-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    min-height: 30px;
    padding: 6px 12px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 700;
    white-space: nowrap;
}

.arc-live-pill,
.arc-input-unit {
    background: rgba(78, 126, 220, 0.10);
    color: #2c4f95;
}

.arc-field-grid,
.arc-kpi-grid,
.arc-support-grid,
.arc-preview-grid,
.arc-ratio-editor {
    display: grid;
    gap: 12px;
}

.arc-field-grid,
.arc-kpi-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.arc-support-grid {
    grid-template-columns: minmax(0, 1fr);
}

.arc-preview-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.arc-ratio-editor {
    grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
    align-items: end;
}

.arc-field {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.arc-label {
    font-size: 13px;
    font-weight: 700;
    color: #5f5a56;
}

.arc-input-wrap {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 8px;
    align-items: center;
}

.arc-input-wrap-select {
    grid-template-columns: minmax(0, 1fr);
}

.arc-input,
.arc-select {
    width: 100%;
    max-width: 100%;
    min-width: 0;
    box-sizing: border-box;
    padding: 12px 14px;
    border: 1px solid #d7deef;
    border-radius: 12px;
    background: #fff;
    color: #24324a;
    font-size: 15px;
    font-weight: 500;
    transition: border-color 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease;
}

.arc-input:hover,
.arc-select:hover {
    border-color: #9bb6ec;
}

.arc-input:focus,
.arc-select:focus,
.arc-copy-btn:focus,
.arc-preset-btn:focus,
.arc-segment-btn:focus {
    outline: none;
    border-color: #4e7edc;
    box-shadow: 0 0 0 3px rgba(78, 126, 220, 0.14);
}

.arc-input[aria-invalid="true"] {
    border-color: #c65b49;
    box-shadow: 0 0 0 3px rgba(198, 91, 73, 0.12);
    background: #fff7f5;
}

.arc-input::placeholder {
    color: #c4c0bc;
    font-weight: 400;
}

.arc-field-hint,
.arc-preview-help,
.arc-preview-meta,
.arc-hero-summary,
.arc-visual-caption,
.arc-table-note,
.arc-standalone-hint {
    margin: 0;
    font-size: 13px;
    line-height: 1.6;
    color: #7a756d;
}

.arc-preview-card {
    display: grid;
    gap: 6px;
    padding: 14px 16px;
    border-radius: 14px;
    background: linear-gradient(135deg, #f5f8ff 0%, #eef3ff 100%);
    border: 1px solid #d6e2ff;
}

.arc-target-card {
    background: linear-gradient(135deg, #fff8ec 0%, #fff3d8 100%);
    border-color: #f0ddaa;
}

.arc-preview-value {
    font-size: 24px;
    font-weight: 800;
    letter-spacing: -0.03em;
    color: #1f3663;
}

.arc-target-card .arc-preview-value {
    color: #7e5600;
}

.arc-preset-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.arc-preset-btn,
.arc-segment-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 38px;
    padding: 9px 14px;
    border: 1px solid #d7deef;
    border-radius: 999px;
    background: #fff;
    color: #526071;
    font-size: 13px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.2s ease;
}

.arc-preset-btn:hover,
.arc-preset-btn:focus,
.arc-preset-btn.is-active,
.arc-preset-btn.active,
.arc-segment-btn:hover,
.arc-segment-btn:focus,
.arc-segment-btn.is-active {
    border-color: #4e7edc;
    color: #24478b;
    background: rgba(78, 126, 220, 0.10);
}

.arc-segmented {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.arc-ratio-divider {
    align-self: center;
    justify-self: center;
    padding-bottom: 12px;
    font-size: 22px;
    font-weight: 800;
    color: #6a6f77;
}

.arc-btn-group {
    display: flex;
    gap: 8px;
}

.arc-btn-group .tool-btn {
    flex: 1 1 0;
}

.arc-tip-list,
.arc-step-list {
    display: grid;
    gap: 8px;
    margin: 0;
    padding-left: 18px;
    font-size: 14px;
    line-height: 1.65;
    color: #4f5966;
}

.arc-waiting {
    display: flex;
    gap: 10px;
    align-items: flex-start;
    padding: 14px 16px;
    border: 1px solid #d9e4fb;
    border-radius: 12px;
    background: #f6f9ff;
    color: #34538f;
}

.arc-waiting p {
    margin: 0;
    line-height: 1.6;
}

.arc-result-hero {
    display: grid;
    gap: 10px;
    padding: 20px;
    border-radius: 18px;
    background: linear-gradient(135deg, #244a93 0%, #4e7edc 55%, #7a9ff1 100%);
    color: #fff;
    box-shadow: 0 16px 34px rgba(36, 74, 147, 0.18);
}

.arc-hero-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
}

.arc-status-badge {
    background: rgba(255, 255, 255, 0.18);
    color: #fff;
}

.arc-status-badge.is-live {
    background: rgba(0, 0, 0, 0.18);
}

.arc-status-badge.is-warning {
    background: rgba(198, 91, 73, 0.24);
}

.arc-copy-btn {
    width: 38px;
    height: 38px;
    border: 1px solid rgba(255, 255, 255, 0.28);
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.10);
    color: #fff;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}

.arc-copy-btn:hover {
    background: rgba(255, 255, 255, 0.18);
    border-color: rgba(255, 255, 255, 0.45);
    transform: translateY(-1px);
}

.arc-hero-label-top,
.arc-hero-label {
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.72);
}

.arc-hero-spec {
    font-size: 24px;
    font-weight: 800;
    letter-spacing: -0.03em;
}

.arc-hero-value {
    font-size: clamp(34px, 5vw, 52px);
    font-weight: 900;
    letter-spacing: -0.05em;
    line-height: 1;
}

.arc-hero-summary {
    color: rgba(255, 255, 255, 0.88);
}

.arc-formula-box {
    padding: 12px 14px;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.18);
    font-size: 13px;
    line-height: 1.6;
    color: rgba(255, 255, 255, 0.92);
}

.arc-kpi-card {
    display: grid;
    gap: 6px;
    padding: 14px 16px;
    border: 1px solid #e0e7fb;
    border-radius: 14px;
    background: #fff;
    box-shadow: 0 1px 4px rgba(45, 42, 38, 0.05);
}

.arc-kpi-label {
    font-size: 12px;
    font-weight: 700;
    color: #7a756d;
}

.arc-kpi-value {
    font-size: 20px;
    font-weight: 800;
    letter-spacing: -0.03em;
    color: #223252;
}

.arc-kpi-value-small {
    font-size: 16px;
    line-height: 1.45;
}

.arc-visual-section,
.arc-table-section,
.arc-step-section {
    gap: 12px;
}

.arc-preview-frame-card {
    display: grid;
    gap: 8px;
}

.arc-preview-frame {
    min-height: 170px;
    padding: 14px;
    border-radius: 16px;
    background: linear-gradient(180deg, #f6f8fd 0%, #eef3ff 100%);
    border: 1px dashed #ced8ef;
    display: flex;
    align-items: center;
    justify-content: center;
}

.arc-preview-box {
    border-radius: 16px;
    box-shadow: 0 10px 24px rgba(36, 74, 147, 0.10);
    transition: width 0.2s ease, height 0.2s ease;
}

.arc-preview-box-current {
    background: linear-gradient(135deg, #4e7edc 0%, #7aa0f2 100%);
}

.arc-preview-box-target {
    background: linear-gradient(135deg, #f0c15a 0%, #f6d88e 100%);
}

.arc-preview-frame-meta {
    margin: 0;
    font-size: 12px;
    line-height: 1.55;
    color: #6a6f77;
}

.arc-table-wrap {
    overflow-x: auto;
}

.arc-size-table {
    width: 100%;
    border-collapse: collapse;
    min-width: 260px;
}

.arc-size-table th,
.arc-size-table td {
    padding: 11px 12px;
    border-bottom: 1px solid #edf1f8;
    text-align: left;
    font-size: 13px;
    line-height: 1.5;
}

.arc-size-table th {
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: #7a756d;
    background: #f8faff;
}

.arc-size-table td {
    color: #223252;
    font-weight: 600;
}

.arc-step-list {
    padding-left: 20px;
}

.arc-step-list li {
    color: #4f5966;
}

@media (min-width: 1100px) {
    .arc-support-grid {
        grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
    }
}

@media (max-width: 1024px) {
    #arcCalculator .tool-layout-split {
        grid-template-columns: 1fr;
    }

    #arcCalculator .tool-layout-input {
        max-width: none;
    }
}

@media (max-width: 768px) {
    .arc-field-grid,
    .arc-kpi-grid,
    .arc-preview-grid,
    .arc-ratio-editor {
        grid-template-columns: 1fr;
    }

    .arc-ratio-divider {
        padding-bottom: 0;
    }

    .arc-btn-group,
    .arc-segmented {
        flex-direction: column;
    }

    .arc-preset-list {
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .arc-preset-btn,
    .arc-segment-btn {
        width: 100%;
    }

    .arc-hero-value {
        font-size: 32px;
    }

    .arc-preview-frame {
        min-height: 140px;
    }
}

/* 2026-04-16 readability + realtime update refinement */
.arc-btn-group {
    display: flex;
    gap: 8px;
    align-items: center;
    justify-content: flex-end;
}

.arc-btn-group .tool-btn:only-child {
    flex: 1 1 100% !important;
    width: 100%;
    min-width: 0;
    margin-left: 0;
}

.arc-result-hero {
    background: linear-gradient(135deg, #173767 0%, #1f4f95 46%, #376fc4 100%);
    box-shadow: 0 18px 36px rgba(18, 47, 93, 0.24);
}

.arc-status-badge {
    border: 1px solid rgba(255, 255, 255, 0.26);
    color: #ffffff;
}

.arc-status-badge.is-example {
    background: rgba(255, 255, 255, 0.18);
    color: #ffffff;
}

.arc-status-badge.is-live {
    background: rgba(255, 244, 214, 0.96);
    border-color: rgba(255, 244, 214, 0.96);
    color: #203658;
}

.arc-status-badge.is-warning {
    background: rgba(255, 219, 214, 0.94);
    border-color: rgba(255, 219, 214, 0.94);
    color: #6b2a22;
}

.arc-copy-btn {
    border-color: rgba(255, 255, 255, 0.34);
    background: rgba(8, 22, 47, 0.22);
    color: #ffffff;
}

.arc-copy-btn:hover {
    background: rgba(255, 255, 255, 0.18);
    border-color: rgba(255, 255, 255, 0.55);
}

.arc-hero-label-top,
.arc-hero-label {
    color: rgba(255, 255, 255, 0.88);
}

.arc-hero-spec,
.arc-hero-value {
    color: #ffffff;
}

.arc-hero-summary {
    color: rgba(249, 252, 255, 0.96);
}

.arc-formula-box {
    background: rgba(9, 24, 53, 0.34);
    border-color: rgba(255, 255, 255, 0.26);
    color: #ffffff;
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.06);
}

.arc-result-hero .arc-hero-summary {
    color: #ffffff !important;
}