/* Variables para Tema Claro */
:root[data-theme="light"] {
    --bg-color: #f8fafc;
    --card-bg: #ffffff;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --accent: #0d9488;
    --accent-hover: #0f766e;
    --border-color: #e2e8f0;
    --input-bg: #f1f5f9;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --ad-bg: #f1f5f9;
    --ad-border: #cbd5e1;
    --shadow: 0 10px 30px -5px rgba(0, 0, 0, 0.05);
}

/* Variables para Tema Oscuro */
:root[data-theme="dark"] {
    --bg-color: #0b0f19;
    --card-bg: #131b2e;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --accent: #14b8a6;
    --accent-hover: #0d9488;
    --border-color: #1e293b;
    --input-bg: #0f172a;
    --success: #22c55e;
    --warning: #f59e0b;
    --danger: #ef4444;
    --ad-bg: rgba(255, 255, 255, 0.02);
    --ad-border: #1e293b;
    --shadow: 0 10px 30px -5px rgba(0, 0, 0, 0.3);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: system-ui, -apple-system, Segoe UI, sans-serif;
    transition: background-color 0.25s ease, color 0.25s ease, border-color 0.25s ease;
}

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.container {
    width: 100%;
    max-width: 950px;
    margin: 0 auto;
    padding: 0 1.25rem;
}

/* Header */
.header {
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 0;
    background-color: var(--card-bg);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    font-weight: 700;
    font-size: 1.35rem;
    color: var(--accent);
    user-select: none;
    cursor: pointer;
}

.logo-icon {
    width: 34px;
    height: 34px;
    color: var(--accent);
    transition: transform 0.25s ease, color 0.25s ease;
}

.logo:hover .logo-icon {
    transform: scale(1.08);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.theme-btn {
    background: var(--input-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    width: 38px;
    height: 38px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--text-primary);
}

.theme-btn:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.language-selector {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
}

.language-selector select {
    background: var(--card-bg);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    padding: 0.45rem 0.75rem;
    border-radius: 8px;
    outline: none;
    cursor: pointer;
    font-size: 0.85rem;
}

/* Main Layout */
.main-content {
    flex: 1;
    margin-top: 1.5rem;
    margin-bottom: 2.5rem;
}

.generator-card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 2rem;
    box-shadow: var(--shadow);
    margin-bottom: 1.5rem;
}

.generator-header h1 {
    font-size: 1.6rem;
    margin-bottom: 0.35rem;
}

.subtitle {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 1.75rem;
}

/* Workspace 2 Columnas */
.generator-workspace {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}

@media (min-width: 768px) {
    .generator-workspace {
        grid-template-columns: 1.2fr 1fr;
        align-items: start;
    }
}

/* Columna Izquierda (Ajustes) */
.options-column {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.range-header {
    display: flex;
    justify-content: space-between;
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

#lengthValue {
    font-weight: 700;
    color: var(--accent);
}

input[type="range"] {
    width: 100%;
    accent-color: var(--accent);
    cursor: pointer;
}

.checkboxes-group {
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    cursor: pointer;
    font-size: 0.9rem;
    color: var(--text-primary);
    user-select: none;
}

.checkbox-label input {
    accent-color: var(--accent);
    width: 18px;
    height: 18px;
    cursor: pointer;
}

/* Columna Derecha (Acción + Resultado) */
.action-column {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    background: var(--input-bg);
    padding: 1.5rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

.btn-primary {
    width: 100%;
    background-color: var(--accent);
    color: var(--card-bg);
    border: none;
    border-radius: 10px;
    padding: 1rem;
    font-size: 1.05rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    box-shadow: 0 4px 12px rgba(13, 148, 136, 0.2);
}

.btn-primary:hover {
    background-color: var(--accent-hover);
}

.btn-primary:active {
    transform: scale(0.99);
}

.password-display {
    position: relative;
    background: var(--card-bg);
    border: 2px solid var(--border-color);
    border-radius: 10px;
    display: flex;
    align-items: center;
    padding: 0.5rem 0.75rem;
}

.password-display input {
    width: 100%;
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
    font-size: 1.1rem;
    outline: none;
    letter-spacing: 0.5px;
}

.action-buttons {
    display: flex;
    gap: 0.25rem;
}

.icon-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 1.1rem;
    padding: 0.4rem 0.6rem;
    cursor: pointer;
    border-radius: 6px;
}

.icon-btn:hover {
    color: var(--accent);
    background: var(--border-color);
}

.copy-alert {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--success);
    height: 1.2rem;
    opacity: 0;
    transition: opacity 0.2s ease;
    margin-top: -0.75rem;
}

.copy-alert.show {
    opacity: 1;
}

/* Medidor de Fortaleza */
.strength-meter-container {
    background: var(--card-bg);
    padding: 0.85rem 1rem;
    border-radius: 10px;
    border: 1px solid var(--border-color);
}

.strength-info {
    display: flex;
    justify-content: space-between;
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 0.4rem;
}

#strengthText {
    font-weight: 600;
}

.strength-bar {
    height: 6px;
    background: var(--border-color);
    border-radius: 3px;
    overflow: hidden;
}

#strengthFill {
    height: 100%;
    width: 0%;
    transition: width 0.3s ease, background-color 0.3s ease;
}

#strengthFill.weak { width: 33%; background-color: var(--danger); }
#strengthFill.medium { width: 66%; background-color: var(--warning); }
#strengthFill.strong { width: 100%; background-color: var(--success); }

/* Banners AdSense */
.ad-container {
    margin: 1.5rem 0;
}

.ad-placeholder {
    background: var(--ad-bg);
    border: 2px dashed var(--ad-border);
    border-radius: 12px;
    padding: 1rem;
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.85rem;
    min-height: 90px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Sección SEO */
.info-section {
    margin-top: 2rem;
    margin-bottom: 1.5rem;
}

.info-section h2 {
    font-size: 1.3rem;
    margin-bottom: 1.25rem;
}

.info-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.25rem;
}

@media (min-width: 768px) {
    .info-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.info-box {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    padding: 1.25rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
}

.info-box i {
    font-size: 1.5rem;
    color: var(--accent);
    margin-bottom: 0.75rem;
}

.info-box h3 {
    font-size: 1rem;
    margin-bottom: 0.4rem;
}

.info-box p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.4;
}

/* Footer */
.footer {
    border-top: 1px solid var(--border-color);
    padding: 1.5rem 0;
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.85rem;
    background-color: var(--card-bg);
}
/* Passuno 1.2 — refinement, accessibility and informative pages */
:root { color-scheme: light; }
:root[data-theme="dark"] { color-scheme: dark; }
button, select, input { font: inherit; }
a { color: var(--accent-hover); text-underline-offset: .17em; }
:root[data-theme="dark"] a { color: var(--accent); }
a:focus-visible, button:focus-visible, select:focus-visible, input:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; }
.skip-link { position: absolute; top: -90px; left: 8px; z-index: 200; background: var(--card-bg); padding: 12px; }
.skip-link:focus { top: 8px; }
.visually-hidden { position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
.logo { text-decoration: none; }
.header-content { gap: 1rem; }
.theme-btn { font-size: 1.3rem; }
.password-display { gap: .3rem; min-width: 0; }
.password-display input { min-width: 0; text-overflow: ellipsis; }
.icon-btn { flex-shrink: 0; }
.btn-primary { color: #fff; }
.copy-alert { min-height: 1.25rem; height: auto; margin-top: -.6rem; }
.copy-alert.error { color: var(--danger); }
.strength-note { font-size: .76rem; line-height: 1.6; margin-top: .7rem; color: var(--text-secondary); }
.notice { display: flex; align-items: center; gap: .5rem; font-size: .85rem; line-height: 1.5; color: var(--text-secondary); margin: 0 0 1rem; }
.badge-privacy { padding: .4rem .65rem; background: var(--input-bg); border-radius: 999px; color: var(--accent); white-space: nowrap; font-size: .77rem; font-weight: 700; }
.info-box h3 { line-height: 1.4; }
.info-box p { line-height: 1.65; }
.step-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.step { background: var(--card-bg); border: 1px solid var(--border-color); border-radius: 12px; padding: 1.1rem; }
.step strong { color: var(--accent); display: block; margin-bottom: .3rem; }
.step p { font-size: .9rem; line-height: 1.55; color: var(--text-secondary); }
.faq-section .info-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.article-card { background: var(--card-bg); border: 1px solid var(--border-color); border-radius: 16px; padding: clamp(1.4rem, 4vw, 2.5rem); box-shadow: var(--shadow); }
.article-card h1 { font-size: clamp(1.65rem, 3vw, 2.1rem); margin-bottom: 1rem; }
.article-card h2 { font-size: 1.2rem; margin: 1.7rem 0 .55rem; }
.article-card p, .article-card li { line-height: 1.75; color: var(--text-secondary); margin: 0 0 .85rem; }
.article-card ul { margin-left: 1.3rem; }
.article-card a { overflow-wrap: anywhere; }
.article-updated { font-size: .83rem; color: var(--text-secondary); margin-bottom: 1rem; }
.footer { background: var(--card-bg); border-top: 1px solid var(--border-color); padding: 1.3rem 0; }
.footer-content { display: flex; justify-content: space-between; align-items: center; gap: 1rem; flex-wrap: wrap; }
.footer p { font-size: .85rem; color: var(--text-secondary); }
.footer-links { display: flex; gap: .8rem 1.2rem; flex-wrap: wrap; font-size: .85rem; }
.footer-links a { text-decoration: none; }
.footer-links a:hover { text-decoration: underline; }
.eyebrow { text-transform: uppercase; color: var(--accent); font-weight: 700; letter-spacing: .08em; font-size: .7rem; margin-bottom: .3rem; }
@media (max-width: 640px) { .generator-card { padding: 1.25rem; } .generator-workspace { gap: 1.2rem; } .action-column { padding: 1.1rem; } .step-list, .faq-section .info-grid { grid-template-columns: 1fr; } .header-actions { gap: .35rem; } .language-selector { gap: .25rem; } .language-selector select { padding: .4rem .35rem; } .password-display input { font-size: .88rem; } .generator-header h1 { font-size: 1.35rem; } }
@media (max-width: 400px) { .header-content { gap: .35rem; } .logo { gap: .3rem; font-size: 1.17rem; } .logo-icon { width: 29px; height: 29px; } .language-selector > span { display: none; } .container { padding-left: 1rem; padding-right: 1rem; } }
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { transition: none !important; scroll-behavior: auto !important; } }