/*
   CDN & WAF RULE GENERATOR — EXPERT WEB TOOLS
*/

@font-face { font-family: 'Inter';      src: url('/fonts/inter-v20-latin-regular.woff2') format('woff2');   font-weight: 400; font-display: swap; }
@font-face { font-family: 'Orbitron';   src: url('/fonts/orbitron-v35-latin-700.woff2') format('woff2');    font-weight: 700; font-display: swap; }
@font-face { font-family: 'Roboto Mono';src: url('/fonts/roboto-mono-v31-latin-regular.woff2') format('woff2'); font-weight: 400; font-display: swap; }

:root {
    --bg-dark:          #0a0a0f;
    --primary-accent:   #3b82f6;
    --secondary-accent: #8b5cf6;
    --text-main:        #ffffff;
    --text-muted:       #94a3b8;
    --card-bg:          rgba(25, 25, 35, 0.6);
    --card-border:      rgba(255, 255, 255, 0.08);
    --input-bg:         rgba(0, 0, 0, 0.3);
    
    --font-heading:     'Orbitron', sans-serif;
    --font-body:        'Inter', sans-serif;
    --font-code:        'Roboto Mono', monospace;
}

/* Light Theme Variables (Synchronized Architecture) */
html.light-theme {
    --bg-dark:          #f8fafc;
    --primary-accent:   #2563eb;
    --secondary-accent: #7c3aed;
    --text-main:        #0f172a;
    --text-muted:       #475569;
    --card-bg:          #ffffff;
    --card-border:      #cbd5e1;
    --input-bg:         #f1f5f9;
}

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

html, body {
    width: 100%;
    max-width: 100vw;
}

/* STRICT CHROMIUM BUG FIX: transition background-color only */
html, body {
    background-color: var(--bg-dark);
    transition: background-color 0.2s ease;
}

body {
    color: var(--text-main);
    font-family: var(--font-body);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.background-glow {
    position: fixed; top: -50%; left: -50%; width: 200%; height: 200%;
    background: radial-gradient(circle at center, rgba(59, 130, 246, 0.08) 0%, rgba(10, 10, 15, 0) 50%);
    z-index: -1; pointer-events: none;
}
html.light-theme .background-glow {
    background: radial-gradient(circle at center, rgba(37, 99, 235, 0.05) 0%, rgba(255,255,255,0) 50%);
}

.sr-only {
    position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
    overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border-width: 0;
}

/* ── Header ─────────────────────────────────────────────────────────── */
.tool-header {
    display: flex; justify-content: space-between; align-items: center;
    padding: 1.5rem 5%; max-width: 1400px; margin: 0 auto; width: 100%;
}
.back-btn { color: var(--text-muted); text-decoration: none; display: flex; align-items: center; gap: 8px; transition: color 0.3s; }
.back-btn:hover { color: var(--primary-accent); }
.logo { font-family: var(--font-heading); font-size: 1.2rem; }
.logo span { color: var(--primary-accent); }

/* Sync'd Theme Toggle Button */
.theme-toggle-btn { 
    background: var(--input-bg); border: 1px solid var(--card-border); 
    color: var(--text-main); width: 36px; height: 36px; border-radius: 8px; 
    cursor: pointer; display: flex; align-items: center; justify-content: center; 
    transition: all 0.2s ease;
}
.theme-toggle-btn:hover { border-color: var(--primary-accent); color: var(--primary-accent); }


/* ── Main layout ────────────────────────────────────────────────────── */
.main-content {
    flex-grow: 1;
    padding: 2rem clamp(1rem, 5%, 5%);
    max-width: 1200px; margin: 0 auto; width: 100%;
}

.tool-intro { text-align: center; margin-bottom: 2rem; }
.tool-intro h1 { font-family: var(--font-heading); font-size: clamp(1.4rem, 4vw, 2rem); margin-bottom: 0.5rem; }
.tool-intro p  { color: var(--text-muted); }
.tool-intro .h1-ampersand { font-family: var(--font-body); font-weight: 300; }
.tool-layout {
    display: grid;
    grid-template-columns: 200px 1fr;
    gap: 1.5rem;
    align-items: start;
    width: 100%;
    min-width: 0;
}

/* ── Sidebar ────────────────────────────────────────────────────────── */
.sidebar { display: flex; flex-direction: column; gap: 1rem; width: 100%; min-width: 0; }

.nav-label {
    font-size: 0.8rem; color: var(--text-muted);
    text-transform: uppercase; letter-spacing: 1px; padding-left: 10px;
}

.nav-grid { display: flex; flex-direction: column; gap: 5px; }

.nav-btn {
    background: transparent; border: 1px solid transparent;
    color: var(--text-muted); padding: 12px 15px; border-radius: 8px;
    cursor: pointer; text-align: left; font-size: 0.95rem; font-family: var(--font-body);
    transition: background 0.2s, color 0.2s, border-color 0.2s;
    display: flex; align-items: center; gap: 10px; width: 100%;
    white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.nav-btn:hover  { background: var(--input-bg); color: var(--text-main); }
.nav-btn.active { background: rgba(59,130,246,0.1); border-color: rgba(59,130,246,0.3); color: var(--primary-accent); font-weight: 600; }
.nav-btn i      { width: 20px; text-align: center; font-size: 1rem; flex-shrink: 0; }

/* ── Builder column ─────────────────────────────────────────────────── */
.builder-display { display: flex; flex-direction: column; gap: 1.5rem; min-width: 0; }

.card {
    background: var(--card-bg); border: 1px solid var(--card-border);
    border-radius: 16px; padding: 1.5rem; backdrop-filter: blur(10px);
    width: 100%; min-width: 0; overflow: hidden;
}

/* Recipe selector */
.recipe-wrapper {
    background: rgba(139,92,246,0.1); border: 1px solid rgba(139,92,246,0.3);
    padding: 15px; border-radius: 8px; display: flex; align-items: center;
    gap: 15px; flex-wrap: wrap;
}
.recipe-wrapper label { font-size: 0.95rem; color: var(--secondary-accent); font-weight: bold; flex-shrink: 0; }
.recipe-wrapper select {
    flex: 1; min-width: 0;
    background: var(--input-bg); border: 1px solid var(--card-border);
    color: var(--text-main); padding: 10px; border-radius: 6px; outline: none;
    cursor: pointer; font-size: 0.95rem; font-family: var(--font-body);
}
.recipe-wrapper select optgroup { background: var(--bg-dark); color: var(--text-muted); font-style: normal; font-weight: bold; }
.recipe-wrapper select option   { background: var(--bg-dark); color: var(--text-main); font-weight: normal; }

/* Builder header */
.builder-header {
    display: flex; justify-content: space-between; align-items: center;
    margin-bottom: 1.5rem; flex-wrap: wrap; gap: 15px;
    border-bottom: 1px solid var(--card-border); padding-bottom: 1rem;
}
.builder-header h2 { font-family: var(--font-heading); font-size: 1.1rem; display: flex; align-items: center; gap: 8px; margin: 0; }
.builder-header i  { color: var(--secondary-accent); }

/* Goal selector */
.goal-wrapper {
    display: flex; align-items: center; gap: 10px;
    background: var(--input-bg); padding: 5px 15px; border-radius: 8px; flex-wrap: wrap;
    border: 1px solid var(--card-border);
}
.goal-wrapper label  { font-size: 0.9rem; color: var(--text-muted); white-space: nowrap; }
.goal-wrapper select {
    background: transparent; border: none; color: var(--text-main);
    font-family: var(--font-body); font-weight: 600; outline: none; cursor: pointer; font-size: 1rem;
}
.goal-wrapper select option { background: var(--bg-dark); }

/* Dynamic goal options */
.redirect-options {
    background: rgba(59,130,246,0.1); border: 1px solid rgba(59,130,246,0.3);
    padding: 15px; border-radius: 8px; margin-bottom: 1.5rem;
}

.goal-opt-group {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 15px;
}
.input-group--span2 { grid-column: span 2; }

.input-group { display: flex; flex-direction: column; gap: 5px; }
.input-group label { font-size: 0.85rem; color: var(--primary-accent); font-weight: 600; }
.input-group input,
.input-group select {
    width: 100%; background: var(--input-bg); border: 1px solid var(--card-border);
    color: var(--text-main); padding: 10px; border-radius: 6px; outline: none;
    font-family: var(--font-code); transition: border-color 0.2s;
    font-size: 16px;
}
.input-group select { font-family: var(--font-body); }
.input-group select option { background: var(--bg-dark); }
.input-group input:focus,
.input-group select:focus { border-color: var(--primary-accent); }

/* Conditions builder */
.conditions-container {
    background: var(--input-bg); border: 1px solid var(--card-border);
    border-radius: 12px; padding: 1.25rem;
    overflow: hidden;
}
.conditions-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 1rem; flex-wrap: wrap; gap: 10px; }
.conditions-header h3  { font-size: 1rem; color: var(--text-muted); margin: 0; }
.conditions-header select {
    background: var(--bg-dark); border: 1px solid var(--card-border);
    color: var(--text-main); padding: 6px 10px; border-radius: 6px; outline: none;
    font-family: var(--font-body); font-size: 16px;
}
.conditions-header select option { background: var(--bg-dark); }

.conditions-list { display: flex; flex-direction: column; gap: 10px; }

.condition-row {
    display: grid;
    grid-template-columns: minmax(0,2fr) minmax(0,2fr) minmax(0,3fr) auto;
    gap: 8px;
    align-items: center;
    background: var(--card-bg);
    padding: 10px; border-radius: 8px;
    border: 1px solid var(--card-border);
    min-width: 0;
}
.condition-row select,
.condition-row input {
    width: 100%; min-width: 0;
    background: var(--bg-dark); border: 1px solid var(--card-border);
    color: var(--text-main); padding: 9px 10px; border-radius: 6px;
    font-size: 16px;
    outline: none; font-family: var(--font-body); transition: border-color 0.2s;
}
.condition-row select option { background: var(--bg-dark); }
.condition-row input { font-family: var(--font-code); }
.condition-row input:focus,
.condition-row select:focus { border-color: var(--primary-accent); }

/* Regex validation */
.condition-row input.invalid { border-color: #ef4444; }
.cond-error {
    grid-column: 1 / -1;
    font-size: 0.78rem; color: #ef4444; padding-top: 2px;
}

/* ── Buttons ─────────────────────────────────────────────────────────── */
.secondary-btn {
    background: var(--input-bg); border: 1px dashed var(--card-border);
    color: var(--text-main); padding: 10px 15px; border-radius: 8px;
    cursor: pointer; font-family: var(--font-body); font-size: 0.9rem;
    transition: border-color 0.2s, color 0.2s;
    display: flex; align-items: center; gap: 8px; justify-content: center; width: 100%;
}
.secondary-btn:hover { border-color: var(--primary-accent); color: var(--primary-accent); }

.icon-btn {
    background: transparent; border: none; color: var(--text-muted);
    cursor: pointer; padding: 8px; font-family: var(--font-body);
    transition: color 0.2s; font-size: 1.1rem; flex-shrink: 0;
}
.icon-btn:hover        { color: var(--text-main); }
.icon-btn.danger:hover { color: #ef4444; }
.icon-btn:focus-visible { outline: 2px solid var(--primary-accent); border-radius: 4px; }

/* ── Output Area ────────────────────────────────────────────────────── */
.output-header {
    display: flex; align-items: center; gap: 15px; margin-bottom: 1rem;
    border-bottom: 1px solid var(--card-border); padding-bottom: 10px; flex-wrap: wrap;
}
.output-header h2 {
    font-family: var(--font-heading); font-size: 1.1rem;
    display: flex; align-items: center; gap: 8px; margin: 0;
    color: var(--text-main); flex: 1; min-width: 0;
}
.output-header h2 span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.output-header i { color: #10b981; flex-shrink: 0; }

.format-toggles {
    display: flex; background: var(--input-bg);
    padding: 4px; border-radius: 8px; flex-wrap: nowrap;
}
.fmt-btn {
    background: transparent; border: none; color: var(--text-muted);
    padding: 6px 12px; border-radius: 6px; cursor: pointer;
    font-family: var(--font-body); font-size: 0.85rem; font-weight: 600;
    transition: background 0.2s, color 0.2s; white-space: nowrap;
}
.fmt-btn.active { background: var(--primary-accent); color: #fff; }

/* Semantic Warnings Styles */
.semantic-warnings {
    background: rgba(245, 158, 11, 0.1);
    border: 1px solid rgba(245, 158, 11, 0.3);
    border-left: 4px solid #f59e0b;
    padding: 12px 15px;
    margin-bottom: 1rem;
    border-radius: 6px;
    font-size: 0.85rem;
    color: #b45309;
    display: flex;
    flex-direction: column;
    gap: 8px;
    line-height: 1.5;
}
html:not(.light-theme) .semantic-warnings { color: #fcd34d; }

.warning-msg {
    display: flex; align-items: flex-start; gap: 10px;
}
.warning-msg i {
    margin-top: 3px; font-size: 1rem; color: #fbbf24;
}
.warning-msg code {
    background: var(--input-bg); padding: 2px 4px; border-radius: 4px; font-family: var(--font-code); color: var(--text-main);
}

.code-output {
    background: var(--input-bg); border: 1px solid var(--card-border);
    border-radius: 8px; padding: 1.5rem; font-family: var(--font-code);
    font-size: 0.9rem; color: var(--text-main);
    overflow-x: auto; overflow-y: auto;
    white-space: pre; word-break: normal;
    min-height: 120px; max-height: 60vh; line-height: 1.5;
}

/* ── Toast ───────────────────────────────────────────────────────────── */
.toast {
    display: block;
    position: fixed; bottom: 20px; left: 50%; transform: translateX(-50%);
    background: #1e1e24; border: 1px solid var(--primary-accent); color: #fff;
    padding: 10px 20px; border-radius: 8px; z-index: 2000;
    box-shadow: 0 4px 12px rgba(0,0,0,0.5); transition: opacity 0.3s;
    font-size: 0.9rem; pointer-events: none; white-space: nowrap;
    
    width: max-content;
    max-width: calc(100vw - 2rem);
    box-sizing: border-box;
}

/* ── Utilities ───────────────────────────────────────────────────────── */
.hidden { display: none !important; opacity: 0; pointer-events: none; }
.mb-1   { margin-bottom: 1rem; }
.mt-1   { margin-top:    1rem; }

/* ── Info / SEO Section ──────────────────────────────────────────────── */
.info-section { margin-top: 4rem; padding: 0 1rem; width: 100%; }
.info-section h2 { font-family: var(--font-heading); color: var(--text-main); margin-bottom: 2rem; font-size: 1.5rem; text-align: center; }

.info-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 2rem; margin-bottom: 2rem; }
.info-grid h3  { color: var(--primary-accent); font-family: var(--font-heading); font-size: 1rem; margin-bottom: 0.5rem; }
.info-grid i   { margin-right: 8px; }
.info-grid p   { color: var(--text-muted); font-size: 0.95rem; line-height: 1.6; }
.info-grid code { background: var(--input-bg); padding: 2px 6px; border-radius: 4px; font-family: var(--font-code); color: var(--text-main); border: 1px solid var(--card-border); }

/* FAQ */
.faq-container { margin-top: 2rem; }
.faq-container h3 { font-family: var(--font-heading); color: var(--text-main); margin: 1.5rem 0 1rem; }

.faq-container details {
    border: 1px solid var(--card-border); border-radius: 8px;
    margin-bottom: 0.75rem; background: var(--input-bg);
}
.faq-container summary {
    padding: 1rem 1.25rem; cursor: pointer; font-weight: 600;
    color: var(--secondary-accent); list-style: none;
    display: flex; justify-content: space-between; align-items: center; user-select: none;
}
.faq-container summary::-webkit-details-marker { display: none; }
.faq-container summary::after { content: '+'; font-size: 1.2rem; color: var(--text-muted); flex-shrink: 0; }
.faq-container details[open] summary::after { content: '−'; }
.faq-container details p { padding: 0 1.25rem 1rem; color: var(--text-muted); font-size: 0.95rem; line-height: 1.6; margin: 0; }
.faq-container details code { font-family: var(--font-code); background: var(--bg-dark); padding: 2px 5px; border-radius: 4px; color: var(--text-main); border: 1px solid var(--card-border); }

/* ── Footer ──────────────────────────────────────────────────────────── */
footer {
    text-align: center; padding: 3rem 0; color: var(--text-muted);
    font-size: 0.9rem; border-top: 1px solid var(--card-border); margin-top: 3rem;
}
footer a       { color: var(--text-muted); text-decoration: none; }
footer a:hover { color: var(--primary-accent); }

/* ── Accessibility ───────────────────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; }
}

/* ═══════════════════════════════════════════════════════════════════════
   RESPONSIVE BREAKPOINTS
   ═══════════════════════════════════════════════════════════════════════ */

@media (max-width: 900px) {
    .tool-layout {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .nav-grid {
        flex-direction: row;
        overflow-x: auto;
        overflow-y: hidden;
        gap: 8px;
        padding-bottom: 8px;
        scrollbar-width: none;
        -ms-overflow-style: none;
    }
    .nav-grid::-webkit-scrollbar { display: none; }

    .nav-btn {
        flex: 0 0 auto;
        padding: 10px 14px;
        white-space: nowrap;
        width: auto;
        min-width: 0;
    }
    .nav-label { display: none; }

    .goal-opt-group      { grid-template-columns: 1fr; gap: 10px; }
    .input-group--span2  { grid-column: span 1; }

    .output-header { flex-direction: column; align-items: flex-start; }
    .code-output { font-size: 0.85rem; max-height: 50vh; }
}

@media (max-width: 768px) {
    .goal-opt-group { grid-template-columns: 1fr 1fr; }
}

.format-toggles {
    display: flex;
    background: var(--input-bg);
    padding: 4px;
    border-radius: 8px;
    flex-wrap: wrap; 
    justify-content: center;
}

@media (max-width: 600px) {
    .tool-header,
    .main-content { padding: 1rem; }

    .card { padding: 1rem; border-radius: 12px; }

    .recipe-wrapper { flex-direction: column; align-items: flex-start; gap: 8px; }
    .recipe-wrapper label { font-size: 0.85rem; }
    .recipe-wrapper select { width: 100%; }

    .builder-header { flex-direction: column; align-items: flex-start; gap: 10px; }
    .goal-wrapper   { width: 100%; justify-content: space-between; }

    .condition-row {
        display: flex;
        flex-direction: column;
        align-items: stretch;
        padding: 1rem;
        gap: 12px;
    }
    
    .remove-cond-btn {
        width: 100%;
        background: rgba(239, 68, 68, 0.1);
        color: #ef4444;
        border-radius: 6px;
        padding: 10px;
        font-size: 0.95rem;
        margin-top: 4px;
        border: 1px solid rgba(239, 68, 68, 0.2);
    }
    
    .remove-cond-btn:hover {
        background: rgba(239, 68, 68, 0.2);
    }

    .remove-cond-btn::after {
        content: " Remove Condition";
        font-family: var(--font-body);
        font-weight: 500;
    }
    
    .remove-cond-btn i {
        margin-right: 5px;
    }

    .cond-error { grid-column: span 1; }

    .format-toggles { width: 100%; }
    .fmt-btn        { flex: 1; text-align: center; padding: 6px 4px; font-size: 0.8rem; }

    .code-output { font-size: 0.8rem; padding: 1rem; max-height: 45vh; }

    .info-section { padding: 0; }
    .info-grid    { grid-template-columns: 1fr; }
}

@media (max-width: 380px) {
    .tool-intro h1 { font-size: 1.2rem; }
    .card          { padding: 0.75rem; }
    .nav-btn       { padding: 8px 10px; font-size: 0.85rem; }
}