@import url("https://fonts.googleapis.com/css2?family=Noto+Sans+KR:wght@300;400;600&family=JetBrains+Mono:wght@300;400;600&display=swap");

:root {
    --bg: #080a0f;
    --bg2: #0d1117;
    --bg3: #111720;
    --panel: #131b25;
    --border: #1e2d40;
    --border2: #243547;
    --dot: #00e5ff;
    --dot2: #0099cc;
    --accent: #ff6b35;
    --green: #39ff14;
    --yellow: #ffd700;
    --red: #ff3333;
    --text: #c8d8e8;
    --text2: #7a9bb5;
    --text3: #3d5a70;
    --glow: 0 0 8px #00e5ff88, 0 0 20px #00e5ff33;
    --mono: "JetBrains Mono", monospace;
    --ui: "Noto Sans KR", sans-serif;
}

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

html,
body {
    height: 100%;
    background: var(--bg);
    color: var(--text);
    font-family: var(--ui);
    overflow: hidden;
}

body::before {
    content: "";
    position: fixed;
    inset: 0;
    background-image: radial-gradient(circle at 1px 1px, #00e5ff08 1px, transparent 0);
    background-size: 28px 28px;
    pointer-events: none;
    z-index: 0;
}

body::after {
    content: "";
    position: fixed;
    inset: 0;
    background: radial-gradient(ellipse 80% 60% at 50% 0%, #00e5ff06 0%, transparent 60%);
    pointer-events: none;
    z-index: 0;
}

header {
    position: relative;
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 16px;
    height: 52px;
    background: var(--bg2);
    border-bottom: 1px solid var(--border);
    flex-shrink: 0;
    gap: 10px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo img {
    width: 32px;
    height: 32px;
    border-radius: 8px;
}

.logo-text {
    font-family: var(--mono);
    font-size: 17px;
    font-weight: 700;
    color: var(--dot);
    letter-spacing: 2px;
    text-shadow: var(--glow);
}

.logo-sub {
    font-size: 10px;
    color: var(--text3);
    letter-spacing: 3px;
    text-transform: uppercase;
    margin-top: 1px;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-left: auto;
}

.badge {
    font-family: var(--mono);
    font-size: 10px;
    color: var(--text3);
    background: var(--border);
    border: 1px solid var(--border2);
    border-radius: 3px;
    padding: 2px 6px;
    letter-spacing: 1px;
}

.workspace {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 200px 1fr 320px;
    height: calc(100vh - 52px);
}

.sidebar {
    background: var(--panel);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.sidebar-title {
    padding: 10px 12px 7px;
    font-size: 9px;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--text3);
    border-bottom: 1px solid var(--border);
    font-family: var(--mono);
}

.ref-list {
    flex: 1;
    overflow-y: auto;
    padding: 4px 0;
}

.ref-list::-webkit-scrollbar {
    width: 3px;
}

.ref-list::-webkit-scrollbar-thumb {
    background: var(--border2);
    border-radius: 2px;
}

.ref-section {
    padding: 7px 12px 3px;
    font-size: 9px;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--dot2);
    font-family: var(--mono);
}

.ref-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 3px 12px;
    cursor: pointer;
    transition: background 0.1s;
}

.ref-item:hover {
    background: var(--border);
}

.ref-item:hover .ref-tok {
    color: var(--dot);
    text-shadow: var(--glow);
}

.ref-tok {
    font-family: var(--mono);
    font-size: 13px;
    color: var(--dot2);
    transition: color 0.15s;
    user-select: none;
}

.ref-name {
    font-family: var(--mono);
    font-size: 9px;
    color: var(--text3);
}

.editor-area {
    display: flex;
    flex-direction: column;
    background: var(--bg2);
    min-width: 0;
}

.editor-toolbar {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 7px 12px;
    background: var(--panel);
    border-bottom: 1px solid var(--border);
    flex-shrink: 0;
    flex-wrap: wrap;
}

.btn {
    display: flex;
    align-items: center;
    gap: 5px;
    padding: 5px 12px;
    border: 1px solid var(--border2);
    border-radius: 4px;
    background: var(--bg3);
    color: var(--text);
    font-family: var(--mono);
    font-size: 11px;
    cursor: pointer;
    transition: all 0.15s;
    letter-spacing: 0.3px;
    white-space: nowrap;
}

.btn:hover {
    border-color: var(--dot);
    color: var(--dot);
    background: #00e5ff0a;
    box-shadow: var(--glow);
}

.btn.primary {
    background: linear-gradient(135deg, #00384d, #00263a);
    border-color: var(--dot2);
    color: var(--dot);
}

.btn.primary:hover {
    background: linear-gradient(135deg, #004d6a, #003350);
    box-shadow: var(--glow);
}

.btn.danger {
    border-color: #ff333344;
    color: #ff6666;
}

.btn.danger:hover {
    border-color: var(--red);
    color: var(--red);
    background: #ff00001a;
}

.btn-icon {
    font-size: 14px;
    line-height: 1;
}

.sep {
    width: 1px;
    height: 18px;
    background: var(--border);
    margin: 0 1px;
}

.fn-input {
    background: var(--bg3);
    border: 1px solid var(--border);
    border-radius: 4px;
    color: var(--text2);
    font-family: var(--mono);
    font-size: 11px;
    padding: 4px 9px;
    width: 130px;
    outline: none;
    transition: border-color 0.15s;
}

.fn-input:focus {
    border-color: var(--dot2);
    color: var(--text);
}

.ml-auto {
    margin-left: auto;
}

.ex-bar {
    display: flex;
    align-items: center;
    gap: 5px;
    padding: 5px 12px;
    background: var(--bg3);
    border-bottom: 1px solid var(--border);
    flex-shrink: 0;
    overflow-x: auto;
}

.ex-bar::-webkit-scrollbar {
    height: 2px;
}

.ex-bar::-webkit-scrollbar-thumb {
    background: var(--border2);
}

.ex-label {
    font-size: 9px;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--text3);
    font-family: var(--mono);
    white-space: nowrap;
    flex-shrink: 0;
}

.ex-btn {
    padding: 3px 9px;
    background: var(--bg2);
    border: 1px solid var(--border);
    border-radius: 3px;
    color: var(--text2);
    font-family: var(--mono);
    font-size: 10px;
    cursor: pointer;
    transition: all 0.12s;
    white-space: nowrap;
    flex-shrink: 0;
}

.ex-btn:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: #ff6b3508;
}

.editor-wrap {
    flex: 1;
    display: flex;
    overflow: hidden;
    position: relative;
}

.line-nums {
    background: var(--bg2);
    border-right: 1px solid var(--border);
    padding: 14px 0;
    min-width: 42px;
    text-align: right;
    font-family: var(--mono);
    font-size: 13px;
    line-height: 24px;
    color: var(--text3);
    overflow: hidden;
    user-select: none;
    flex-shrink: 0;
}

.line-nums span {
    display: block;
    padding: 0 8px 0 4px;
}

#editor {
    flex: 1;
    background: var(--bg2);
    color: var(--text);
    font-family: var(--mono);
    font-size: 14px;
    line-height: 24px;
    padding: 14px 16px;
    border: none;
    outline: none;
    resize: none;
    tab-size: 2;
    caret-color: var(--dot);
    overflow-y: auto;
    white-space: pre;
    overflow-x: auto;
}

#editor::selection {
    background: #00e5ff22;
}

#editor::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

#editor::-webkit-scrollbar-thumb {
    background: var(--border2);
    border-radius: 3px;
}

.statusbar {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 3px 12px;
    background: var(--panel);
    border-top: 1px solid var(--border);
    font-family: var(--mono);
    font-size: 10px;
    color: var(--text3);
    flex-shrink: 0;
}

.s-item {
    display: flex;
    align-items: center;
    gap: 4px;
}

.s-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--text3);
}

.s-dot.ok {
    background: var(--green);
    box-shadow: 0 0 6px var(--green);
}

.s-dot.err {
    background: var(--red);
    box-shadow: 0 0 6px var(--red);
}

.s-dot.run {
    background: var(--yellow);
    box-shadow: 0 0 6px var(--yellow);
    animation: blink 0.5s step-end infinite;
}

@keyframes blink {
    50% {
        opacity: 0;
    }
}

.out-panel {
    display: flex;
    flex-direction: column;
    background: var(--panel);
    border-left: 1px solid var(--border);
}

.tabs {
    display: flex;
    border-bottom: 1px solid var(--border);
    flex-shrink: 0;
}

.tab {
    padding: 9px 14px;
    font-family: var(--mono);
    font-size: 10px;
    letter-spacing: 1px;
    color: var(--text3);
    cursor: pointer;
    border-bottom: 2px solid transparent;
    transition: all 0.15s;
    text-transform: uppercase;
}

.tab.active {
    color: var(--dot);
    border-bottom-color: var(--dot);
    background: #00e5ff08;
}

.tab:hover:not(.active) {
    color: var(--text2);
}

.panel-body {
    flex: 1;
    overflow: hidden;
    position: relative;
}

.pview {
    position: absolute;
    inset: 0;
    overflow-y: auto;
    display: none;
}

.pview.active {
    display: block;
}

.pview::-webkit-scrollbar {
    width: 4px;
}

.pview::-webkit-scrollbar-thumb {
    background: var(--border2);
    border-radius: 2px;
}

#output {
    font-family: var(--mono);
    font-size: 12.5px;
    line-height: 1.65;
    padding: 12px 14px;
    white-space: pre-wrap;
    word-break: break-word;
    overflow-wrap: anywhere;
}

.o-out {
    color: var(--text);
}

.o-err {
    color: var(--red);
    opacity: 0.85;
}

.o-info {
    color: var(--dot2);
}

.o-ok {
    color: var(--green);
}

.o-fail {
    color: var(--red);
}

.enc-wrap {
    padding: 14px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.enc-box {
    background: var(--bg3);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 12px;
}

.enc-lbl {
    font-size: 9px;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--text3);
    font-family: var(--mono);
    margin-bottom: 7px;
}

.enc-in {
    width: 100%;
    background: var(--bg2);
    border: 1px solid var(--border2);
    border-radius: 4px;
    color: var(--text);
    font-family: var(--mono);
    font-size: 12px;
    padding: 6px 9px;
    outline: none;
    transition: border-color 0.15s;
}

.enc-in:focus {
    border-color: var(--dot2);
}

.enc-res {
    margin-top: 7px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 7px 9px;
    font-family: var(--mono);
    font-size: 11px;
    color: var(--dot);
    word-break: break-all;
    min-height: 34px;
    cursor: pointer;
    transition: border-color 0.15s;
}

.enc-res:hover {
    border-color: var(--dot2);
}

.enc-hint {
    font-size: 9px;
    color: var(--text3);
    margin-top: 3px;
    font-family: var(--mono);
}

.tok-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4px;
    padding: 10px;
}

.tok-card {
    background: var(--bg3);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 6px 9px;
    cursor: pointer;
    transition: all 0.12s;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 4px;
}

.tok-card:hover {
    border-color: var(--dot);
    background: #00e5ff08;
}

.tok-card:hover .tc-sym {
    color: var(--dot);
    text-shadow: var(--glow);
}

.tc-sym {
    font-family: var(--mono);
    font-size: 14px;
    color: var(--dot2);
    flex-shrink: 0;
}

.tc-name {
    font-family: var(--mono);
    font-size: 8.5px;
    color: var(--text3);
    text-align: right;
}

.overlay {
    position: fixed;
    inset: 0;
    background: #000a;
    z-index: 500;
    display: none;
    align-items: center;
    justify-content: center;
}

.overlay.show {
    display: flex;
}

.ov-box {
    background: var(--panel);
    border: 1px solid var(--dot2);
    border-radius: 8px;
    padding: 22px 26px;
    min-width: 320px;
    box-shadow: var(--glow);
}

.ov-box h3 {
    font-family: var(--mono);
    font-size: 11px;
    color: var(--dot);
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 11px;
}

.ov-box input {
    width: 100%;
    background: var(--bg2);
    border: 1px solid var(--border2);
    border-radius: 4px;
    color: var(--text);
    font-family: var(--mono);
    font-size: 14px;
    padding: 8px 11px;
    outline: none;
    margin-bottom: 11px;
}

.ov-box input:focus {
    border-color: var(--dot);
}

.toast {
    position: fixed;
    bottom: 22px;
    right: 22px;
    background: var(--panel);
    border: 1px solid var(--dot2);
    border-radius: 5px;
    padding: 9px 16px;
    font-family: var(--mono);
    font-size: 12px;
    color: var(--dot);
    z-index: 999;
    opacity: 0;
    transform: translateY(8px);
    transition: all 0.2s;
    pointer-events: none;
    box-shadow: var(--glow);
}

.toast.show {
    opacity: 1;
    transform: translateY(0);
}

.workspace, .editor-area, .editor-wrap {
    min-height: 0;
}

.line-nums span {
    height: 24px;
}

@media (max-width: 900px) {
    .workspace {
        grid-template-columns: 1fr;
        grid-template-rows: 1fr auto;
    }

    .sidebar {
        display: none;
    }

    .out-panel {
        height: 38vh;
        border-left: none;
        border-top: 1px solid var(--border);
    }

    .editor-area {
        height: calc(62vh - 52px);
    }
}