:root {
    --bg-color: #121212;
    --panel-bg: #1e1e1e;
    --border-color: #333333;
    --text-color: #a0a0a0;
    --header-bg: #252525;
    --header-text: #e0e0e0;
    --selected-border: #e0e0e0;
    --selected-bg: #333333;
    --selected-text: #ffffff;
}

body {
    background-color: #000;
    color: var(--text-color);
    font-family: 'Noto Sans KR', sans-serif;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    padding: 20px;
    margin: 0;
    user-select: none;
}

.app-layout {
    width: 100%;
    max-width: 1250px;
    display: grid;
    grid-template-columns: minmax(0, 1fr) 380px;
    gap: 20px;
}

.container {
    width: 100%;
    background-color: var(--bg-color);
    padding: 20px;
    box-sizing: border-box;
}

.weapon-sidebar {
    background-color: var(--bg-color);
    border: 1px solid var(--border-color);
    padding: 14px;
    box-sizing: border-box;
    height: fit-content;
    position: sticky;
    top: 20px;
}

.weapon-toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
}

.weapon-toolbar-left {
    display: flex;
    align-items: center;
    gap: 8px;
}

#fourstar-toggle-btn,
#unowned-filter-btn,
#signature-weapon-toggle-btn {
    border: 1px solid #5a5a5a;
    background: #262626;
    color: #f0f0f0;
    font-size: 0.86rem;
    padding: 6px 10px;
    cursor: pointer;
}

#fourstar-toggle-btn:hover,
#unowned-filter-btn:hover,
#signature-weapon-toggle-btn:hover {
    background: #323232;
}

#fourstar-toggle-btn.is-active {
    background: #6a3f13;
    border-color: #d8994d;
    color: #ffe8c9;
}

#unowned-filter-btn.is-active,
#signature-weapon-toggle-btn.is-active {
    background: #143f4f;
    border-color: #4db6d8;
    color: #d7f4ff;
}

.weapon-selected-count {
    font-size: 0.85rem;
    color: #b7b7b7;
}

.weapon-list {
    max-height: 65vh;
    overflow-y: auto;
    border: 1px solid #383838;
    background-color: #1b1b1b;
    padding: 8px;
    scrollbar-gutter: stable;
    scrollbar-width: thin;
    scrollbar-color: #5d5d5d #1a1a1a;
}

.weapon-list::-webkit-scrollbar {
    width: 10px;
}

.weapon-list::-webkit-scrollbar-track {
    background: linear-gradient(180deg, #171717 0%, #1d1d1d 100%);
    border-left: 1px solid #2a2a2a;
}

.weapon-list::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, #6a6a6a 0%, #505050 100%);
    border: 2px solid #1b1b1b;
    border-radius: 999px;
}

.weapon-list::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(180deg, #828282 0%, #666666 100%);
}

.weapon-item {
    display: flex;
    align-items: center;
    padding: 6px 4px;
    border-bottom: 1px solid #2c2c2c;
    cursor: pointer;
    color: #d9d9d9;
    transition: opacity 0.15s ease;
}

.weapon-item:last-child {
    border-bottom: 0;
}

.weapon-item:focus-visible {
    outline: 1px solid #9b9b9b;
    outline-offset: -2px;
}

.weapon-item.is-excluded {
    opacity: 0.38;
}

.weapon-item.is-hidden-by-filter {
    display: none;
}

.weapon-item .weapon-card {
    flex: 1;
}

.weapon-card--compact {
    padding: 6px 8px;
}

.weapon-card--compact .weapon-card-image {
    width: 44px;
    height: 44px;
}

.weapon-card--compact .weapon-card-character-icon {
    width: 30px;
    height: 30px;
}

.weapon-card--compact .weapon-card-name {
    font-size: 0.9rem;
}

.weapon-card--compact .weapon-card-attrs {
    font-size: 0.79rem;
}

.section {
    margin-bottom: 25px;
}

.section-header {
    background-color: var(--header-bg);
    border: 1px solid var(--border-color);
    color: var(--header-text);
    text-align: center;
    padding: 10px 0;
    font-size: 1.1rem;
    font-weight: 500;
    margin-bottom: 15px;
    box-shadow: inset 0 0 10px rgba(0,0,0,0.5);
}

.grid-container {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
}

.stat-box {
    background-color: var(--panel-bg);
    border: 1px solid var(--border-color);
    padding: 12px 15px;
    font-size: 0.95rem;
    color: var(--text-color);
    display: flex;
    align-items: center;
    cursor: pointer;
    transition: all 0.2s ease;
    position: relative;
}

.stat-box:hover {
    border-color: #555;
    background-color: #2a2a2a;
    color: #fff;
}

/* 선택된 상태 스타일 */
.stat-box.selected {
    border: 1px solid var(--selected-border);
    background-color: var(--selected-bg);
    color: var(--selected-text);
    box-shadow: 0 0 8px rgba(255, 255, 255, 0.1);
}

.stat-box.selected::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background-color: var(--selected-border);
}

.action-row {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin: 30px 0 20px;
}

#calculate-btn,
#calculate-canyon-btn {
    border: 1px solid #6b6b6b;
    background: #2b2b2b;
    color: #f2f2f2;
    font-size: 1rem;
    font-weight: 600;
    padding: 10px 28px;
    cursor: pointer;
    transition: background-color 0.2s ease, border-color 0.2s ease;
}

#calculate-btn:hover:not(:disabled),
#calculate-canyon-btn:hover:not(:disabled) {
    background: #3b3b3b;
    border-color: #a0a0a0;
}

#calculate-btn:disabled,
#calculate-canyon-btn:disabled {
    opacity: 0.55;
    cursor: not-allowed;
}

.result-section {
    margin-top: 10px;
}

.result-content {
    background-color: var(--panel-bg);
    border: 1px solid var(--border-color);
    padding: 16px;
    line-height: 1.6;
    color: #d0d0d0;
}

.result-list-summary {
    margin: 0 0 10px;
    color: #c8c8c8;
}

.result-list {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.result-list-item {
    border-top: 1px solid #3b3b3b;
    padding-top: 12px;
}

.result-list-rank {
    display: inline-block;
    margin-bottom: 8px;
    color: #e9e9e9;
    font-weight: 700;
}

.result-card {
    display: grid;
    grid-template-columns: 130px 1fr;
    gap: 16px;
    align-items: start;
}

.dungeon-box {
    display: flex;
    flex-direction: column;
    gap: 8px;
    align-items: center;
}

.dungeon-image {
    width: 120px;
    height: 120px;
    object-fit: cover;
    border: 1px solid #555;
}

.dungeon-title {
    color: #f0f0f0;
    font-weight: 600;
}

.result-summary p {
    margin: 0 0 6px;
}

.weapon-card-list {
    margin-top: 6px;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 8px;
}

.weapon-card {
    display: flex;
    align-items: center;
    gap: 10px;
    border: 1px solid #3b3b3b;
    background: #242424;
    padding: 8px;
}

.weapon-card-image {
    width: 54px;
    height: 54px;
    object-fit: cover;
    border: 1px solid #5a5a5a;
    background: #1a1a1a;
    flex-shrink: 0;
}

.weapon-card-image--placeholder {
    display: block;
}

.weapon-card-text {
    min-width: 0;
}

.weapon-card-name {
    color: #f0f0f0;
    font-weight: 600;
    line-height: 1.25;
    word-break: keep-all;
}

.weapon-card-character-icon {
    display: none;
    width: 38px;
    height: 38px;
    object-fit: cover;
    border: 1px solid #505050;
    background: #1a1a1a;
    flex-shrink: 0;
}

body.show-signature-weapon .weapon-card-character-icon {
    display: block;
}

.weapon-card-attrs {
    color: #bcbcbc;
    font-size: 0.86rem;
    line-height: 1.35;
    word-break: keep-all;
}

.weapon-empty {
    color: #bcbcbc;
    font-size: 0.9rem;
}

.matched-options {
    margin-top: 14px;
    border-top: 1px solid #3a3a3a;
    padding-top: 12px;
}

.matched-title {
    color: #f0f0f0;
    font-weight: 600;
    margin-bottom: 8px;
}

.matched-options ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

.matched-options li {
    border: 1px solid #383838;
    background-color: #242424;
    padding: 8px 10px;
    margin-bottom: 8px;
}

.option-line {
    display: block;
    color: #ffffff;
}

@media (max-width: 600px) {
    .grid-container {
        grid-template-columns: 1fr;
    }

    .result-card {
        grid-template-columns: 1fr;
    }

    .dungeon-box {
        align-items: flex-start;
    }

    .weapon-card-list {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 980px) {
    .app-layout {
        grid-template-columns: 1fr;
    }

    .weapon-sidebar {
        position: static;
    }
}