/* ============ THEME TOKENS ============ */
.regex-lab-wrapper {
    all: initial;
    display: block;
    width: 100%;
    box-sizing: border-box;
    font-family: 'Inter', system-ui, sans-serif;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

.regex-lab-wrapper *, 
.regex-lab-wrapper *::before, 
.regex-lab-wrapper *::after {
    box-sizing: border-box;
}

.regex-lab-wrapper[data-theme="dark"]{
    --rl-bg:#0a0e1a;
    --rl-bg-2:#0f1422;
    --rl-surface:#141a2a;
    --rl-surface-2:#1a2138;
    --rl-surface-3:#222b45;
    --rl-border:#26304a;
    --rl-border-2:#323d5c;
    --rl-text:#e6edf3;
    --rl-text-2:#9aa5c4;
    --rl-text-3:#6b7693;
    --rl-accent:#00e5cc;
    --rl-accent-2:#0bd1a8;
    --rl-accent-glow:rgba(0,229,204,.18);
    --rl-amber:#fbbf24;
    --rl-pink:#f472b6;
    --rl-violet:#a78bfa;
    --rl-red:#f87171;
    --rl-green:#34d399;
    --rl-shadow:0 10px 40px -10px rgba(0,0,0,.5);
    --rl-shadow-sm:0 2px 8px rgba(0,0,0,.3);
    --rl-grad:linear-gradient(135deg,#00e5cc 0%,#0bd1a8 100%);
    background: var(--rl-bg);
    color: var(--rl-text);
}
.regex-lab-wrapper[data-theme="light"]{
    --rl-bg:#f5f7fb;
    --rl-bg-2:#ffffff;
    --rl-surface:#ffffff;
    --rl-surface-2:#f1f4f9;
    --rl-surface-3:#e7ecf3;
    --rl-border:#dde3ed;
    --rl-border-2:#c5cdd9;
    --rl-text:#1a202c;
    --rl-text-2:#5a6678;
    --rl-text-3:#8b95a7;
    --rl-accent:#0a9d88;
    --rl-accent-2:#088674;
    --rl-accent-glow:rgba(10,157,136,.12);
    --rl-amber:#d97706;
    --rl-pink:#db2777;
    --rl-violet:#7c3aed;
    --rl-red:#dc2626;
    --rl-green:#059669;
    --rl-shadow:0 10px 40px -10px rgba(20,30,60,.12);
    --rl-shadow-sm:0 2px 8px rgba(20,30,60,.06);
    --rl-grad:linear-gradient(135deg,#0a9d88 0%,#088674 100%);
    background: var(--rl-bg);
    color: var(--rl-text);
}

.regex-lab-wrapper .rl-mono { font-family:'JetBrains Mono',monospace; }

/* ============ HEADER ============ */
.regex-lab-wrapper .rl-header{
    position:sticky; top:0; z-index:50;
    background:rgba(10,14,26,.8);
    backdrop-filter:blur(16px);
    -webkit-backdrop-filter:blur(16px);
    border-bottom:1px solid var(--rl-border);
    padding:14px 28px;
    display:flex; align-items:center; justify-content:space-between;
    transition:background .3s ease,border-color .3s ease;
}
.regex-lab-wrapper[data-theme="light"] .rl-header { background:rgba(255,255,255,.85); }
.regex-lab-wrapper .rl-brand { display:flex; align-items:center; gap:14px; }
.regex-lab-wrapper .rl-logo{
    width:40px; height:40px; border-radius:11px;
    background:var(--rl-grad);
    display:grid; place-items:center;
    box-shadow:0 6px 20px var(--rl-accent-glow);
    position:relative;
}
.regex-lab-wrapper .rl-logo svg { width:22px; height:22px; color:#fff; }
.regex-lab-wrapper .rl-logo::after{
    content:""; position:absolute; inset:0; border-radius:11px;
    background:var(--rl-grad); filter:blur(12px); opacity:.5; z-index:-1;
}
.regex-lab-wrapper .rl-brand h1 { font-size:19px; font-weight:800; letter-spacing:-.02em; color: var(--rl-text); }
.regex-lab-wrapper .rl-tag{
    font-size:11px; color:var(--rl-text-3); font-weight:500;
    padding:3px 9px; border:1px solid var(--rl-border); border-radius:20px;
    margin-left:4px;
}
.regex-lab-wrapper .rl-actions { display:flex; align-items:center; gap:10px; }
.regex-lab-wrapper .rl-btn{
    font-family:inherit; font-size:13px; font-weight:600;
    padding:9px 16px; border-radius:9px; border:1px solid var(--rl-border);
    background:var(--rl-surface); color:var(--rl-text); cursor:pointer;
    display:inline-flex; align-items:center; gap:7px;
    transition:all .18s ease;
}
.regex-lab-wrapper .rl-btn:hover { border-color:var(--rl-border-2); background:var(--rl-surface-2); transform:translateY(-1px); }
.regex-lab-wrapper .rl-btn-primary { background:var(--rl-grad); border:none; color:#fff; box-shadow:0 4px 14px var(--rl-accent-glow); }
.regex-lab-wrapper .rl-btn-primary:hover { box-shadow:0 6px 20px var(--rl-accent-glow); }
.regex-lab-wrapper .rl-btn-ghost { background:transparent; }
.regex-lab-wrapper .rl-btn-icon { padding:9px; width:38px; height:38px; justify-content:center; }
.regex-lab-wrapper .rl-theme-toggle{
    position:relative; width:54px; height:28px; border-radius:20px;
    background:var(--rl-surface-2); border:1px solid var(--rl-border);
    cursor:pointer; transition:all .25s ease;
}
.regex-lab-wrapper .rl-theme-toggle::after{
    content:""; position:absolute; top:2px; left:2px;
    width:22px; height:22px; border-radius:50%;
    background:var(--rl-grad);
    transition:transform .25s cubic-bezier(.4,0,.2,1);
    box-shadow:0 2px 6px rgba(0,0,0,.3);
}
.regex-lab-wrapper[data-theme="light"] .rl-theme-toggle::after { transform:translateX(26px); }
.regex-lab-wrapper .rl-theme-toggle svg { position:absolute; top:5px; width:18px; height:18px; transition:opacity .25s ease; }
.regex-lab-wrapper .rl-theme-toggle .sun { right:6px; color:#fbbf24; opacity:0; }
.regex-lab-wrapper .rl-theme-toggle .moon { left:6px; color:var(--rl-text-2); opacity:1; }
.regex-lab-wrapper[data-theme="light"] .rl-theme-toggle .sun { opacity:1; }
.regex-lab-wrapper[data-theme="light"] .rl-theme-toggle .moon { opacity:0; }

/* ============ LAYOUT ============ */
.regex-lab-wrapper .rl-main { width: 100%; margin:0 auto; padding:24px 28px 60px; box-sizing: border-box; }
.regex-lab-wrapper .rl-section-title{
    font-size:12px; font-weight:700; text-transform:uppercase; letter-spacing:.08em;
    color:var(--rl-text-3); margin-bottom:10px;
}

/* ============ PATTERN BAR ============ */
.regex-lab-wrapper .rl-pattern-bar{
    background:var(--rl-surface); border:1px solid var(--rl-border);
    border-radius:14px; padding:18px 20px; margin-bottom:18px;
    box-shadow:var(--rl-shadow-sm);
}
.regex-lab-wrapper .rl-pattern-row{
    display:flex; align-items:center; gap:14px;
    background:var(--rl-bg-2); border:1px solid var(--rl-border);
    border-radius:11px; padding:4px 4px 4px 18px;
    transition:border-color .2s ease,box-shadow .2s ease;
}
.regex-lab-wrapper .rl-pattern-row:focus-within{
    border-color:var(--rl-accent);
    box-shadow:0 0 0 4px var(--rl-accent-glow);
}
.regex-lab-wrapper .rl-pattern-row.error { border-color:var(--rl-red); box-shadow:0 0 0 4px rgba(248,113,113,.12); }
.regex-lab-wrapper .rl-delim { color:var(--rl-accent); font-size:24px; font-weight:700; font-family:'JetBrains Mono',monospace; }
.regex-lab-wrapper #rlPatternInput{
    flex:1; background:transparent; border:none; outline:none;
    color:var(--rl-text); font-family:'JetBrains Mono',monospace;
    font-size:18px; font-weight:500; padding:14px 4px;
    letter-spacing:.01em; width: 100%;
}
.regex-lab-wrapper #rlPatternInput::placeholder { color:var(--rl-text-3); }
.regex-lab-wrapper .rl-flags{
    display:flex; gap:4px; padding:6px;
    background:var(--rl-surface-2); border-radius:9px;
    border:1px solid var(--rl-border);
}
.regex-lab-wrapper .rl-flag-btn{
    font-family:'JetBrains Mono',monospace; font-size:13px; font-weight:600;
    width:32px; height:32px; border-radius:6px;
    background:transparent; border:none; color:var(--rl-text-3);
    cursor:pointer; transition:all .15s ease;
    position:relative;
}
.regex-lab-wrapper .rl-flag-btn:hover { color:var(--rl-text); background:var(--rl-surface-3); }
.regex-lab-wrapper .rl-flag-btn.active{
    background:var(--rl-grad); color:#fff;
    box-shadow:0 2px 8px var(--rl-accent-glow);
}
.regex-lab-wrapper .rl-flag-btn::after{
    content:attr(data-tip);
    position:absolute; bottom:-30px; left:50%; transform:translateX(-50%);
    background:var(--rl-surface-3); color:var(--rl-text);
    font-size:10px; padding:4px 8px; border-radius:5px;
    white-space:nowrap; opacity:0; pointer-events:none;
    transition:opacity .15s ease; z-index:10;
    border:1px solid var(--rl-border);
}
.regex-lab-wrapper .rl-flag-btn:hover::after { opacity:1; }
.regex-lab-wrapper .rl-pattern-meta{
    display:flex; align-items:center; justify-content:space-between;
    margin-top:12px; padding:0 4px;
    font-size:12px; color:var(--rl-text-3);
    flex-wrap: wrap;
    gap: 10px;
}
.regex-lab-wrapper .rl-meta-left { display:flex; gap:18px; align-items:center; flex-wrap: wrap; }
.regex-lab-wrapper .rl-meta-item { display:flex; align-items:center; gap:6px; }
.regex-lab-wrapper .rl-meta-dot { width:6px; height:6px; border-radius:50%; background:var(--rl-text-3); }
.regex-lab-wrapper .rl-meta-dot.ok { background:var(--rl-green); }
.regex-lab-wrapper .rl-meta-dot.err { background:var(--rl-red); }
.regex-lab-wrapper #rlErrorMsg { color:var(--rl-red); font-family:'JetBrains Mono',monospace; font-size:12px; }

/* ============ WORKSPACE ============ */
.regex-lab-wrapper .rl-workspace{
    display:grid; grid-template-columns:1fr 1fr; gap:18px; margin-bottom:18px;
}
.regex-lab-wrapper .rl-panel{
    background:var(--rl-surface); border:1px solid var(--rl-border);
    border-radius:14px; overflow:hidden;
    display:flex; flex-direction:column;
    box-shadow:var(--rl-shadow-sm);
}
.regex-lab-wrapper .rl-panel-head{
    padding:14px 18px; border-bottom:1px solid var(--rl-border);
    display:flex; align-items:center; justify-content:space-between;
    background:var(--rl-bg-2);
}
.regex-lab-wrapper .rl-panel-head h2 { font-size:14px; font-weight:700; letter-spacing:-.01em; color: var(--rl-text); }
.regex-lab-wrapper .rl-panel-head .rl-count{
    font-size:12px; color:var(--rl-text-3); font-family:'JetBrains Mono',monospace;
    background:var(--rl-surface-2); padding:3px 10px; border-radius:20px;
    border:1px solid var(--rl-border);
}
.regex-lab-wrapper .rl-panel-body { padding:16px 18px; flex:1; display:flex; flex-direction:column; gap:12px; }
.regex-lab-wrapper #rlTestString{
    width:100%; min-height:180px; resize:vertical;
    background:var(--rl-bg-2); border:1px solid var(--rl-border); border-radius:10px;
    padding:14px; color:var(--rl-text); font-family:'JetBrains Mono',monospace;
    font-size:13px; line-height:1.7; outline:none;
    transition:border-color .2s ease,box-shadow .2s ease;
}
.regex-lab-wrapper #rlTestString:focus { border-color:var(--rl-accent); box-shadow:0 0 0 4px var(--rl-accent-glow); }
.regex-lab-wrapper .rl-output-box{
    background:var(--rl-bg-2); border:1px solid var(--rl-border); border-radius:10px;
    padding:14px; font-family:'JetBrains Mono',monospace; font-size:13px;
    line-height:1.7; white-space:pre-wrap; word-break:break-word;
    min-height:120px; max-height:300px; overflow:auto;
    position:relative; color: var(--rl-text);
}
.regex-lab-wrapper .rl-output-label{
    font-size:11px; font-weight:600; color:var(--rl-text-3);
    text-transform:uppercase; letter-spacing:.06em;
}
.regex-lab-wrapper .rl-output-box mark{
    background:rgba(0,229,204,.18); color:var(--rl-accent);
    border-radius:3px; padding:1px 2px; font-weight:600;
    border-bottom:2px solid var(--rl-accent);
}
.regex-lab-wrapper[data-theme="light"] .rl-output-box mark { background:rgba(10,157,136,.15); }
.regex-lab-wrapper .rl-output-box mark.m2 { background:rgba(251,191,36,.22); color:var(--rl-amber); border-color:var(--rl-amber); }
.regex-lab-wrapper .rl-output-box mark.m3 { background:rgba(244,114,182,.22); color:var(--rl-pink); border-color:var(--rl-pink); }
.regex-lab-wrapper .rl-output-box mark.m4 { background:rgba(167,139,250,.22); color:var(--rl-violet); border-color:var(--rl-violet); }

/* Matches list */
.regex-lab-wrapper .rl-matches-list{
    display:flex; flex-direction:column; gap:8px;
    max-height:280px; overflow:auto; padding-right:4px;
}
.regex-lab-wrapper .rl-match-card{
    background:var(--rl-bg-2); border:1px solid var(--rl-border);
    border-radius:9px; padding:11px 13px;
    transition:border-color .15s ease;
}
.regex-lab-wrapper .rl-match-card:hover { border-color:var(--rl-border-2); }
.regex-lab-wrapper .rl-match-card-head{
    display:flex; align-items:center; justify-content:space-between;
    margin-bottom:6px;
}
.regex-lab-wrapper .rl-match-num{
    font-size:11px; font-weight:700; color:var(--rl-accent);
    background:var(--rl-accent-glow); padding:2px 9px; border-radius:12px;
    font-family:'JetBrains Mono',monospace;
}
.regex-lab-wrapper .rl-match-pos { font-size:11px; color:var(--rl-text-3); font-family:'JetBrains Mono',monospace; }
.regex-lab-wrapper .rl-match-val{
    font-family:'JetBrains Mono',monospace; font-size:13px;
    color:var(--rl-text); background:var(--rl-surface-2);
    padding:5px 9px; border-radius:6px;
    word-break:break-all;
}
.regex-lab-wrapper .rl-match-groups { margin-top:8px; display:flex; flex-direction:column; gap:5px; }
.regex-lab-wrapper .rl-match-group{
    display:flex; gap:8px; font-size:11px;
    font-family:'JetBrains Mono',monospace;
}
.regex-lab-wrapper .rl-match-group .gnum { color:var(--rl-violet); min-width:38px; }
.regex-lab-wrapper .rl-match-group .gval{
    color:var(--rl-text-2); background:var(--rl-surface-2);
    padding:2px 6px; border-radius:4px; flex:1; word-break:break-all;
}
.regex-lab-wrapper .rl-empty-state{
    text-align:center; padding:30px 20px; color:var(--rl-text-3);
    font-size:13px;
}
.regex-lab-wrapper .rl-empty-state svg { width:38px; height:38px; margin:0 auto 10px; opacity:.4; display: block; }

/* Replace section */
.regex-lab-wrapper .rl-replace-section{
    border-top:1px solid var(--rl-border); padding-top:14px; margin-top:6px;
}
.regex-lab-wrapper .rl-replace-input-row { display:flex; gap:8px; margin-bottom:10px; }
.regex-lab-wrapper #rlReplaceInput{
    flex:1; background:var(--rl-bg-2); border:1px solid var(--rl-border);
    border-radius:9px; padding:10px 12px; color:var(--rl-text);
    font-family:'JetBrains Mono',monospace; font-size:13px; outline:none;
    transition:border-color .2s ease;
}
.regex-lab-wrapper #rlReplaceInput:focus { border-color:var(--rl-accent); }
.regex-lab-wrapper .rl-replace-hint { font-size:11px; color:var(--rl-text-3); margin-bottom:8px; }

/* ============ EXPLANATION PANEL ============ */
.regex-lab-wrapper .rl-explanation-panel{
    background:var(--rl-surface); border:1px solid var(--rl-border);
    border-radius:14px; overflow:hidden; margin-bottom:18px;
    box-shadow:var(--rl-shadow-sm);
}
.regex-lab-wrapper .rl-pattern-preview{
    padding:16px 18px; background:var(--rl-bg-2);
    border-bottom:1px solid var(--rl-border);
    font-family:'JetBrains Mono',monospace; font-size:15px;
    line-height:1.8; word-break:break-all;
}
.regex-lab-wrapper .tok { padding:2px 4px; border-radius:4px; font-weight:600; position:relative; }
.regex-lab-wrapper .tok.literal { color:var(--rl-text); }
.regex-lab-wrapper .tok.escape { color:var(--rl-amber); background:rgba(251,191,36,.1); }
.regex-lab-wrapper .tok.shorthand { color:var(--rl-green); background:rgba(52,211,153,.1); }
.regex-lab-wrapper .tok.charclass { color:var(--rl-violet); background:rgba(167,139,250,.1); }
.regex-lab-wrapper .tok.quantifier { color:var(--rl-pink); background:rgba(244,114,182,.1); }
.regex-lab-wrapper .tok.anchor { color:var(--rl-red); background:rgba(248,113,113,.1); }
.regex-lab-wrapper .tok.group { color:var(--rl-accent); background:var(--rl-accent-glow); }
.regex-lab-wrapper .tok.wildcard { color:var(--rl-amber); background:rgba(251,191,36,.1); }
.regex-lab-wrapper .tok.alternation { color:var(--rl-pink); background:rgba(244,114,182,.1); }
.regex-lab-wrapper .tok.backref { color:var(--rl-violet); background:rgba(167,139,250,.1); }
.regex-lab-wrapper .tok.error { color:var(--rl-red); background:rgba(248,113,113,.15); text-decoration:underline wavy var(--rl-red); }

.regex-lab-wrapper .rl-explanation-list{
    padding:8px 8px 14px; max-height:420px; overflow:auto;
}
.regex-lab-wrapper .rl-exp-item{
    display:grid; grid-template-columns:auto 1fr; gap:14px;
    padding:11px 14px; border-radius:9px;
    transition:background .15s ease; align-items:start;
}
.regex-lab-wrapper .rl-exp-item:hover { background:var(--rl-bg-2); }
.regex-lab-wrapper .rl-exp-token{
    font-family:'JetBrains Mono',monospace; font-size:14px; font-weight:600;
    padding:4px 10px; border-radius:6px; min-width:60px; text-align:center;
    white-space:nowrap;
}
.regex-lab-wrapper .rl-exp-info { display:flex; flex-direction:column; gap:3px; }
.regex-lab-wrapper .rl-exp-type{
    font-size:10px; font-weight:700; text-transform:uppercase;
    letter-spacing:.06em; color:var(--rl-text-3);
}
.regex-lab-wrapper .rl-exp-desc { font-size:13px; color:var(--rl-text-2); line-height:1.55; }

/* ============ TABS ============ */
.regex-lab-wrapper .rl-tabs-section{
    background:var(--rl-surface); border:1px solid var(--rl-border);
    border-radius:14px; overflow:hidden; box-shadow:var(--rl-shadow-sm);
}
.regex-lab-wrapper .rl-tabs{
    display:flex; border-bottom:1px solid var(--rl-border);
    background:var(--rl-bg-2); padding:0 12px; overflow-x: auto;
}
.regex-lab-wrapper .rl-tab{
    font-family:inherit; font-size:13px; font-weight:600;
    padding:14px 18px; background:transparent; border:none;
    color:var(--rl-text-3); cursor:pointer; position:relative;
    transition:color .15s ease; white-space: nowrap;
}
.regex-lab-wrapper .rl-tab:hover { color:var(--rl-text); }
.regex-lab-wrapper .rl-tab.active { color:var(--rl-accent); }
.regex-lab-wrapper .rl-tab.active::after{
    content:""; position:absolute; bottom:-1px; left:12px; right:12px;
    height:2px; background:var(--rl-accent); border-radius:2px 2px 0 0;
}
.regex-lab-wrapper .rl-tab-content { padding:18px; display:none; }
.regex-lab-wrapper .rl-tab-content.active { display:block; }

/* Cheatsheet */
.regex-lab-wrapper .rl-cheat-grid{
    display:grid; grid-template-columns:repeat(auto-fill,minmax(240px,1fr));
    gap:12px;
}
.regex-lab-wrapper .rl-cheat-card{
    background:var(--rl-bg-2); border:1px solid var(--rl-border);
    border-radius:10px; padding:13px 15px; transition:border-color .15s ease;
}
.regex-lab-wrapper .rl-cheat-card:hover { border-color:var(--rl-accent); }
.regex-lab-wrapper .rl-cheat-card h4{
    font-size:11px; text-transform:uppercase; letter-spacing:.07em;
    color:var(--rl-text-3); margin-bottom:9px; font-weight:700;
}
.regex-lab-wrapper .rl-cheat-row{
    display:flex; align-items:center; justify-content:space-between;
    padding:5px 0; font-size:13px;
}
.regex-lab-wrapper .rl-cheat-row code{
    font-family:'JetBrains Mono',monospace; font-size:12px;
    background:var(--rl-surface-2); padding:2px 8px; border-radius:5px;
    color:var(--rl-accent); cursor:pointer; transition:all .15s ease;
}
.regex-lab-wrapper .rl-cheat-row code:hover { background:var(--rl-accent); color:#fff; }
.regex-lab-wrapper .rl-cheat-row span { color:var(--rl-text-2); font-size:12px; }

/* Library */
.regex-lab-wrapper .rl-lib-grid{
    display:grid; grid-template-columns:repeat(auto-fill,minmax(260px,1fr));
    gap:12px;
}
.regex-lab-wrapper .rl-lib-card{
    background:var(--rl-bg-2); border:1px solid var(--rl-border);
    border-radius:10px; padding:14px 16px; cursor:pointer;
    transition:all .18s ease; position:relative;
}
.regex-lab-wrapper .rl-lib-card:hover { border-color:var(--rl-accent); transform:translateY(-2px); box-shadow:var(--rl-shadow-sm); }
.regex-lab-wrapper .rl-lib-card h4 { font-size:14px; font-weight:700; margin-bottom:4px; color: var(--rl-text); }
.regex-lab-wrapper .rl-lib-card .rl-lib-cat{
    font-size:10px; text-transform:uppercase; letter-spacing:.06em;
    color:var(--rl-accent); font-weight:600; margin-bottom:8px;
}
.regex-lab-wrapper .rl-lib-card .rl-lib-pat{
    font-family:'JetBrains Mono',monospace; font-size:11px;
    color:var(--rl-text-2); background:var(--rl-surface-2);
    padding:6px 9px; border-radius:6px; word-break:break-all;
    margin-bottom:6px;
}
.regex-lab-wrapper .rl-lib-card .rl-lib-desc { font-size:12px; color:var(--rl-text-3); }

/* Saved patterns */
.regex-lab-wrapper .rl-saved-list { display:flex; flex-direction:column; gap:10px; }
.regex-lab-wrapper .rl-saved-card{
    background:var(--rl-bg-2); border:1px solid var(--rl-border);
    border-radius:10px; padding:14px 16px;
    display:flex; align-items:center; justify-content:space-between; gap:14px;
    transition:border-color .15s ease;
}
.regex-lab-wrapper .rl-saved-card:hover { border-color:var(--rl-border-2); }
.regex-lab-wrapper .rl-saved-info { flex:1; min-width:0; }
.regex-lab-wrapper .rl-saved-info h4 { font-size:14px; font-weight:600; margin-bottom:3px; color: var(--rl-text); }
.regex-lab-wrapper .rl-saved-info .rl-saved-pat{
    font-family:'JetBrains Mono',monospace; font-size:12px;
    color:var(--rl-text-2); word-break:break-all;
}
.regex-lab-wrapper .rl-saved-info .rl-saved-meta { font-size:11px; color:var(--rl-text-3); margin-top:4px; }
.regex-lab-wrapper .rl-saved-actions { display:flex; gap:6px; }
.regex-lab-wrapper .rl-icon-btn{
    width:32px; height:32px; border-radius:7px;
    background:var(--rl-surface-2); border:1px solid var(--rl-border);
    color:var(--rl-text-2); cursor:pointer; display:grid; place-items:center;
    transition:all .15s ease; flex-shrink: 0;
}
.regex-lab-wrapper .rl-icon-btn:hover { color:var(--rl-text); border-color:var(--rl-border-2); }
.regex-lab-wrapper .rl-icon-btn.danger:hover { color:var(--rl-red); border-color:var(--rl-red); }
.regex-lab-wrapper .rl-icon-btn svg { width:15px; height:15px; }

/* ============ MODAL ============ */
.regex-lab-wrapper .rl-modal-overlay{
    position:fixed; inset:0; background:rgba(0,0,0,.6);
    backdrop-filter:blur(4px); z-index:99999;
    display:none; align-items:center; justify-content:center;
    animation:rlFadeIn .2s ease;
}
.regex-lab-wrapper .rl-modal-overlay.show { display:flex; }
.regex-lab-wrapper .rl-modal{
    background:var(--rl-surface); border:1px solid var(--rl-border);
    border-radius:14px; padding:24px; width:420px; max-width:90vw;
    box-shadow:var(--rl-shadow);
    animation:rlSlideUp .25s ease;
}
.regex-lab-wrapper .rl-modal h3 { font-size:17px; font-weight:700; margin-bottom:14px; color: var(--rl-text); }
.regex-lab-wrapper .rl-modal input, .regex-lab-wrapper .rl-modal textarea{
    width:100%; background:var(--rl-bg-2); border:1px solid var(--rl-border);
    border-radius:9px; padding:10px 12px; color:var(--rl-text);
    font-family:inherit; font-size:13px; outline:none; margin-bottom:10px;
    transition:border-color .2s ease;
}
.regex-lab-wrapper .rl-modal input:focus, .regex-lab-wrapper .rl-modal textarea:focus { border-color:var(--rl-accent); }
.regex-lab-wrapper .rl-modal textarea { resize:vertical; min-height:60px; font-family:'JetBrains Mono',monospace; }
.regex-lab-wrapper .rl-modal-actions { display:flex; gap:8px; justify-content:flex-end; margin-top:6px; }

/* ============ TOAST ============ */
.regex-lab-wrapper .rl-toast-container{
    position:fixed; bottom:24px; right:24px; z-index:99999;
    display:flex; flex-direction:column; gap:8px;
}
.regex-lab-wrapper .rl-toast{
    background:var(--rl-surface); border:1px solid var(--rl-border);
    border-left:3px solid var(--rl-accent);
    padding:12px 16px; border-radius:9px; font-size:13px;
    color: var(--rl-text);
    box-shadow:var(--rl-shadow); min-width:240px;
    animation:rlSlideIn .25s ease; display:flex; align-items:center; gap:10px;
}
.regex-lab-wrapper .rl-toast.error { border-left-color:var(--rl-red); }
.regex-lab-wrapper .rl-toast.success { border-left-color:var(--rl-green); }
.regex-lab-wrapper .rl-toast svg { width:18px; height:18px; flex-shrink:0; }
.regex-lab-wrapper .rl-toast.success svg { color:var(--rl-green); }
.regex-lab-wrapper .rl-toast.error svg { color:var(--rl-red); }

/* ============ ANIMATIONS ============ */
@keyframes rlFadeIn { from{opacity:0} to{opacity:1} }
@keyframes rlSlideUp { from{opacity:0;transform:translateY(20px)} to{opacity:1;transform:translateY(0)} }
@keyframes rlSlideIn { from{opacity:0;transform:translateX(40px)} to{opacity:1;transform:translateX(0)} }

/* ============ SCROLLBAR ============ */
.regex-lab-wrapper ::-webkit-scrollbar { width:10px; height:10px; }
.regex-lab-wrapper ::-webkit-scrollbar-track { background:transparent; }
.regex-lab-wrapper ::-webkit-scrollbar-thumb { background:var(--rl-surface-3); border-radius:10px; border:2px solid var(--rl-bg); }
.regex-lab-wrapper ::-webkit-scrollbar-thumb:hover { background:var(--rl-border-2); }

/* ============ RESPONSIVE ============ */
@media (max-width: 980px) {
    .regex-lab-wrapper .rl-workspace { grid-template-columns: 1fr; }
    .regex-lab-wrapper .rl-main { padding: 18px; }
    .regex-lab-wrapper .rl-header { padding: 12px 18px; }
    .regex-lab-wrapper .rl-brand .rl-tag { display: none; }
}
@media (max-width: 560px) {
    .regex-lab-wrapper .rl-pattern-row { flex-wrap: wrap; }
    .regex-lab-wrapper #rlPatternInput { font-size: 16px; width: 100%; }
    .regex-lab-wrapper .rl-flags { width: 100%; justify-content: center; }
    .regex-lab-wrapper .rl-modal { width: 95vw; }
}