:root {
    --bg-primary: #0a0b14;
    --bg-secondary: #121422;
    --bg-card: #1a1d30;
    --border-color: #2a2e4c;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --accent: #818cf8;
    --accent-hover: #6366f1;
    --success: #34d399;
    --danger: #f87171;
    --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
    --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

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

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: var(--font-sans);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: 1300px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Navbar */
.navbar {
    background: rgba(18, 20, 34, 0.8);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
}
.nav-container {
    max-width: 1300px;
    margin: 0 auto;
    padding: 14px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.logo {
    display: flex;
    align-items: center;
    gap: 10px;
}
.logo-icon {
    font-size: 24px;
}
.logo-text {
    font-size: 18px;
    font-weight: 700;
    letter-spacing: -0.5px;
}
.highlight {
    color: var(--accent);
}
.badge {
    font-size: 11px;
    background: #4f46e5;
    color: #fff;
    padding: 2px 8px;
    border-radius: 999px;
    font-weight: 600;
}
.nav-links {
    display: flex;
    align-items: center;
    gap: 16px;
}
.privacy-pill {
    font-size: 12px;
    background: rgba(52, 211, 153, 0.12);
    color: var(--success);
    border: 1px solid rgba(52, 211, 153, 0.3);
    padding: 4px 10px;
    border-radius: 999px;
    font-weight: 500;
}
.nav-btn {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    text-decoration: none;
    font-size: 13px;
    padding: 6px 14px;
    border-radius: 6px;
    font-weight: 500;
    transition: all 0.2s;
}
.nav-btn:hover {
    border-color: var(--accent);
    color: var(--accent);
}

/* Hero */
.hero {
    text-align: center;
    padding: 36px 0 20px;
}
.hero h1 {
    font-size: 34px;
    font-weight: 800;
    letter-spacing: -1px;
    margin-bottom: 10px;
}
.gradient-text {
    background: linear-gradient(135deg, #a78bfa, #818cf8, #38bdf8);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}
.subtitle {
    color: var(--text-secondary);
    font-size: 15px;
    max-width: 700px;
    margin: 0 auto;
}

/* Stats Bar */
.stats-bar {
    display: flex;
    justify-content: center;
    gap: 20px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 12px 24px;
    margin-bottom: 24px;
    flex-wrap: wrap;
}
.stat-item {
    display: flex;
    align-items: center;
    gap: 8px;
}
.stat-num {
    font-size: 18px;
    font-weight: 800;
    color: var(--text-primary);
    font-family: var(--font-mono);
}
.stat-label {
    font-size: 12px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.stat-highlight {
    color: var(--success);
}

/* Workspace Grid */
.workspace-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin-bottom: 30px;
}
@media (max-width: 900px) {
    .workspace-grid {
        grid-template-columns: 1fr;
    }
}

.panel {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 20px;
    display: flex;
    flex-direction: column;
}

.panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 14px;
}
.panel-title {
    font-size: 15px;
    font-weight: 700;
    color: var(--text-primary);
}
.btn-text {
    background: none;
    border: none;
    color: var(--accent);
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    padding: 4px 8px;
    border-radius: 4px;
}
.btn-text:hover {
    background: rgba(129, 140, 248, 0.1);
}
.btn-text.danger {
    color: var(--danger);
}
.btn-text.danger:hover {
    background: rgba(248, 113, 113, 0.1);
}

/* Drag & Drop */
.drop-zone {
    border: 2px dashed var(--border-color);
    border-radius: 8px;
    padding: 16px;
    text-align: center;
    background: var(--bg-secondary);
    cursor: pointer;
    transition: all 0.2s;
    margin-bottom: 12px;
}
.drop-zone.dragover {
    border-color: var(--accent);
    background: rgba(129, 140, 248, 0.08);
}
.drop-icon {
    font-size: 24px;
}
.drop-text {
    font-size: 13px;
    color: var(--text-secondary);
    margin-top: 4px;
}
.drop-browse {
    color: var(--accent);
    font-weight: 600;
    cursor: pointer;
}
.file-input-hidden {
    display: none;
}

/* Textareas */
.textarea-wrapper {
    flex: 1;
    display: flex;
    min-height: 380px;
    margin-bottom: 14px;
}
textarea {
    width: 100%;
    height: 100%;
    min-height: 380px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 14px;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 14px;
    line-height: 1.6;
    resize: vertical;
    outline: none;
    transition: border-color 0.2s;
}
textarea:focus {
    border-color: var(--accent);
}

/* Toggles */
.options-box {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 12px 14px;
}
.options-title {
    font-size: 12px;
    font-weight: 700;
    color: var(--text-secondary);
    text-transform: uppercase;
    display: block;
    margin-bottom: 8px;
}
.toggle-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 8px;
}
.toggle-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--text-primary);
    cursor: pointer;
}
.toggle-item input[type="checkbox"] {
    accent-color: var(--accent);
    cursor: pointer;
}

/* Output Mode Tabs */
.mode-tabs {
    display: flex;
    gap: 6px;
    margin-bottom: 12px;
    overflow-x: auto;
    padding-bottom: 4px;
}
.tab-btn {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-size: 12px;
    font-weight: 600;
    padding: 6px 12px;
    border-radius: 6px;
    cursor: pointer;
    white-space: nowrap;
    transition: all 0.2s;
}
.tab-btn:hover {
    color: var(--text-primary);
    border-color: var(--accent);
}
.tab-btn.active {
    background: var(--accent);
    color: #fff;
    border-color: var(--accent);
}

/* Output Action Buttons */
.output-actions {
    display: flex;
    gap: 8px;
}
.btn-action {
    background: #4f46e5;
    border: none;
    color: #fff;
    font-size: 12px;
    font-weight: 600;
    padding: 6px 12px;
    border-radius: 6px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: background 0.2s;
}
.btn-action:hover {
    background: var(--accent-hover);
}

/* Support Callout */
.support-banner {
    display: flex;
    align-items: center;
    gap: 10px;
    background: rgba(245, 158, 11, 0.1);
    border: 1px solid rgba(245, 158, 11, 0.3);
    border-radius: 8px;
    padding: 10px 14px;
}
.support-icon {
    font-size: 18px;
}
.support-text {
    font-size: 12px;
    color: #f8fafc;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
}
.support-link {
    color: #fbbf24;
    text-decoration: none;
    font-weight: 600;
}
.support-link:hover {
    text-decoration: underline;
}

/* Toast */
.toast {
    position: fixed;
    bottom: 24px;
    right: 24px;
    background: var(--success);
    color: #064e3b;
    padding: 10px 20px;
    border-radius: 8px;
    font-size: 13px;
    font-weight: 700;
    box-shadow: 0 10px 25px rgba(0,0,0,0.4);
    opacity: 0;
    transform: translateY(10px);
    transition: all 0.2s;
    pointer-events: none;
    z-index: 1000;
}
.toast.show {
    opacity: 1;
    transform: translateY(0);
}

/* Adsterra */
.ad-wrapper {
    margin: 40px 0;
    text-align: center;
}
.ad-container {
    display: inline-block;
    min-height: 90px;
    background: rgba(18, 20, 34, 0.6);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 4px;
    max-width: 100%;
    overflow-x: auto;
}
.ad-caption {
    font-size: 11px;
    color: #64748b;
    margin-top: 6px;
}

/* Tool Matrix Cross Links */
.tool-matrix {
    margin: 40px auto 20px;
    padding: 20px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    text-align: center;
}
.matrix-title {
    font-size: 12px;
    font-weight: 700;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 14px;
    display: block;
}
.matrix-links {
    display: flex;
    justify-content: center;
    gap: 12px;
    flex-wrap: wrap;
}
.matrix-badge {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    text-decoration: none;
    font-size: 13px;
    padding: 8px 16px;
    border-radius: 8px;
    transition: all 0.2s;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
.matrix-badge:hover {
    border-color: var(--accent);
    color: var(--accent);
    transform: translateY(-1px);
}
.matrix-badge.active {
    border-color: var(--accent);
    background: rgba(129, 140, 248, 0.15);
}

/* Footer */
.footer {
    text-align: center;
    padding: 30px 20px;
    border-top: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-size: 13px;
}