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

:root {
    --primary: #3b82ff;
    --primary-dark: #1d4ed8;
    --secondary: #06b6d4;
    --success: #10b981;
    --danger: #ef4444;
    --warning: #f59e0b;
    --dark: #0f172a;
    --dark-light: #1e293b;
    --light: #f8fafc;
    --white: #ffffff;
    --border: #e2e8f0;
    --text: #334155;
    --text-light: #64748b;
    --glass: rgba(255, 255, 255, 0.1);
    --glass-border: rgba(255, 255, 255, 0.2);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --gradient-main: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-dark: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
    --radius: 20px;
}

body {
    font-family: 'DM Sans', system-ui, -apple-system, sans-serif;
    background: var(--gradient-main);
    background-attachment: fixed;
    min-height: 100vh;
    color: var(--text);
    line-height: 1.6;
    overflow-x: hidden;
}

/* ============================================================
   DISCLAIMER MODAL
   ============================================================ */
.disclaimer-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.75);
    backdrop-filter: blur(8px);
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
    animation: fadeIn 0.3s ease;
}

.disclaimer-overlay.hidden {
    display: none;
}

.disclaimer-modal {
    background: var(--white);
    border-radius: 28px;
    padding: 2.5rem;
    max-width: 520px;
    width: 100%;
    box-shadow: 0 30px 60px rgba(0,0,0,0.3);
    animation: slideUp 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.disclaimer-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    text-align: center;
}

.disclaimer-modal h2 {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--dark);
    margin-bottom: 1rem;
    text-align: center;
}

.disclaimer-modal p {
    font-size: 0.95rem;
    color: var(--text);
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

.disclaimer-check {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    cursor: pointer;
    margin-bottom: 1.5rem;
    padding: 1rem;
    background: var(--light);
    border-radius: 12px;
    border: 2px solid var(--border);
    transition: border-color 0.2s;
}

.disclaimer-check:hover {
    border-color: var(--primary);
}

.disclaimer-check input[type="checkbox"] {
    margin-top: 2px;
    width: 18px;
    height: 18px;
    flex-shrink: 0;
    cursor: pointer;
    accent-color: var(--primary);
}

.disclaimer-check span {
    font-size: 0.9rem;
    color: var(--text);
    line-height: 1.5;
    font-weight: 500;
}

#disclaimerBtn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
    box-shadow: none !important;
}

/* ============================================================
   BACKGROUND PARTICLES
   ============================================================ */
.app-container {
    min-height: 100vh;
    position: relative;
}

.bg-particles {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    z-index: -1;
}

.particle {
    position: absolute;
    display: block;
    pointer-events: none;
    width: 2px;
    height: 2px;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    animation: float 8s infinite linear;
}

@keyframes float {
    0% { transform: translateY(100vh) rotate(0deg); opacity: 0; }
    10% { opacity: 1; }
    90% { opacity: 1; }
    100% { transform: translateY(-100vh) rotate(360deg); opacity: 0; }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideUp {
    from { opacity: 0; transform: translateY(40px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ============================================================
   HEADER
   ============================================================ */
.header {
    background: var(--glass);
    backdrop-filter: blur(20px) saturate(150%);
    border-bottom: 1px solid var(--glass-border);
    padding: 2rem 2rem 2.5rem;
    text-align: center;
    color: white;
    position: relative;
}

.header-content {
    max-width: 700px;
    margin: 0 auto;
}

.header-badge {
    display: inline-block;
    background: rgba(255,255,255,0.15);
    border: 1px solid rgba(255,255,255,0.3);
    color: rgba(255,255,255,0.9);
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
    padding: 0.3rem 1rem;
    border-radius: 50px;
    margin-bottom: 1rem;
}

.header h1 {
    font-size: clamp(1.8rem, 5vw, 3rem);
    font-weight: 800;
    margin-bottom: 0.75rem;
    background: linear-gradient(135deg, #ffffff 0%, #e2e8f0 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.2;
}

.header p {
    font-size: 1rem;
    opacity: 0.85;
    font-weight: 400;
}

.language-selector {
    position: absolute;
    top: 1rem;
    right: 1rem;
    z-index: 9999;
    background: var(--glass);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    padding: 0.5rem 1rem;
    color: white;
    font-weight: 500;
}

.language-selector select {
    background: transparent;
    border: none;
    color: white;
    font-weight: 500;
    cursor: pointer;
    font-size: 0.9rem;
    font-family: inherit;
}

.language-selector option {
    background: var(--dark);
    color: white;
}

/* ============================================================
   MAIN LAYOUT
   ============================================================ */
.main-content {
    padding: 3rem 1.5rem 4rem;
    max-width: 1600px;
    margin: 0 auto;
    width: 100%;
}

.content-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    margin-bottom: 3rem;
}

@media (min-width: 1200px) {
    .content-grid {
        grid-template-columns: 490px 1fr;
    }
}

/* ============================================================
   GLASS CARDS
   ============================================================ */
.glass-card {
    background: var(--glass);
    backdrop-filter: blur(20px) saturate(150%);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    box-shadow: var(--shadow-xl);
    overflow: hidden;
    position: relative;
}

.card-header {
    padding: 1.75rem 2.5rem;
    background: var(--gradient-dark);
    color: white;
    position: relative;
}

.card-title {
    font-size: 1.4rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.35rem;
}

.card-subtitle {
    opacity: 0.75;
    font-size: 0.9rem;
    font-weight: 400;
}

.card-body {
    padding: 2rem 2rem 2.5rem;
    background: rgba(255, 255, 255, 0.97);
}

/* ============================================================
   NAVIGATION TABS — 2 rows (3 top + 2 centred bottom)
   ============================================================ */
.nav-tabs {
    display: grid;
    /* 6 equal columns so: row1 = cols 1-2 | 3-4 | 5-6 (3 tabs)
                            row2 = cols 2-3 | 4-5     (2 tabs centred) */
    grid-template-columns: repeat(6, 1fr);
    gap: 0.4rem;
    background: var(--light);
    border-radius: 18px;
    padding: 0.5rem;
    margin-bottom: 1.75rem;
    box-shadow: inset 0 1px 3px rgba(0,0,0,0.08);
}

/* Row 1: three tabs fill pairs of columns */
.nav-tab:nth-child(1) { grid-column: 1 / 3; }
.nav-tab:nth-child(2) { grid-column: 3 / 5; }
.nav-tab:nth-child(3) { grid-column: 5 / 7; }

/* Row 2: two tabs centred (cols 2-4 and 4-6) */
.nav-tab:nth-child(4) { grid-column: 2 / 4; }
.nav-tab:nth-child(5) { grid-column: 4 / 6; }

.nav-tab {
    width: 100%;
    padding: 0.85rem 0.6rem;
    background: transparent;
    border: none;
    border-radius: 12px;
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    color: var(--text-light);
    white-space: nowrap;
    font-family: inherit;
    text-align: center;
}

.nav-tab.active {
    background: var(--white);
    color: var(--primary);
    box-shadow: var(--shadow);
    transform: scale(1.02);
}

.nav-tab:hover:not(.active) {
    background: rgba(255, 255, 255, 0.7);
    color: var(--text);
}

/* ============================================================
   TAB CONTENT
   ============================================================ */
.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
    animation: slideIn 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes slideIn {
    from { opacity: 0; transform: translateY(16px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ============================================================
   FORM ELEMENTS
   ============================================================ */
.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    display: block;
    margin-bottom: 0.6rem;
    font-weight: 600;
    font-size: 1.05rem;
    color: var(--dark);
}

.form-input, .form-select {
    width: 100%;
    padding: 1rem 1.25rem;
    border: 2px solid var(--border);
    border-radius: 14px;
    font-size: 1.15rem;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    background: var(--white);
    font-family: 'Inter', sans-serif;
    font-weight: 500;
    color: var(--dark);
}

.form-select {
    font-family: 'DM Sans', sans-serif;
}

.form-input:focus, .form-select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.1);
    transform: translateY(-1px);
}

.form-input:disabled, .form-select:disabled {
    background: var(--light);
    color: var(--text-light);
    cursor: not-allowed;
    opacity: 0.6;
}

.input-group {
    position: relative;
}

.input-suffix {
    position: absolute;
    right: 1.15rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-light);
    font-weight: 600;
    pointer-events: none;
    font-size: 1rem;
    font-family: 'DM Sans', sans-serif;
}

.form-input.with-suffix {
    padding-right: 4.5rem;
}

/* ============================================================
   FIELD HINTS & TOOLTIPS
   ============================================================ */
.help-tooltip {
    display: inline-block;
    margin-left: 0.4rem;
    cursor: help;
    font-size: 1rem;
    opacity: 0.7;
    transition: opacity 0.2s;
}

.help-tooltip:hover {
    opacity: 1;
}

.field-hint {
    margin-top: 0.5rem;
    font-size: 0.85rem;
    color: var(--primary);
    font-weight: 500;
    padding: 0.4rem 0.75rem;
    background: rgba(59, 130, 246, 0.07);
    border-left: 3px solid var(--primary);
    border-radius: 0 8px 8px 0;
    line-height: 1.4;
}

.field-warning {
    margin-top: 0.5rem;
    font-size: 0.85rem;
    font-weight: 500;
    padding: 0.4rem 0.75rem;
    background: rgba(245, 158, 11, 0.08);
    border-left: 3px solid var(--warning);
    border-radius: 0 8px 8px 0;
    color: #92400e;
    line-height: 1.4;
}

.input-warning {
    border-color: var(--warning) !important;
}

.metric-microcopy {
    margin-top: 0.5rem;
    font-size: 0.78rem;
    color: var(--text-light);
    font-style: italic;
    line-height: 1.4;
    padding-top: 0.4rem;
    border-top: 1px solid var(--light);
}


.slider-container {
    margin-top: 0.75rem;
    position: relative;
}

.form-slider {
    -webkit-appearance: none;
    width: 100%;
    height: 8px;
    background: var(--border);
    border-radius: 5px;
    outline: none;
    transition: background 0.3s;
    cursor: pointer;
}

.form-slider::-webkit-slider-runnable-track {
    height: 8px;
    background: linear-gradient(to right, #a3e635 0%, #a3e635 var(--progress, 0%), var(--border) var(--progress, 0%), var(--border) 100%);
    border-radius: 5px;
}

.form-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 24px;
    height: 24px;
    background: #a3e635;
    border-radius: 50%;
    cursor: pointer;
    margin-top: -8px;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
    transition: transform 0.2s;
}

.form-slider:hover::-webkit-slider-thumb {
    transform: scale(1.15);
}

.form-slider::-moz-range-track {
    height: 8px;
    background: var(--border);
    border-radius: 5px;
    border: none;
}

.form-slider::-moz-range-progress {
    height: 8px;
    background: #a3e635;
    border-radius: 5px;
}

.form-slider::-moz-range-thumb {
    width: 24px;
    height: 24px;
    background: #a3e635;
    border-radius: 50%;
    cursor: pointer;
    border: none;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
}

/* ============================================================
   SCENARIO BUTTONS
   ============================================================ */
.scenario-section {
    margin-top: 0.5rem;
    padding-top: 1.5rem;
    border-top: 2px solid var(--border);
}

.scenario-label {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--text-light);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 0.75rem;
}

.scenario-buttons {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.6rem;
}

.btn-scenario {
    padding: 0.65rem 0.5rem;
    border: 2px solid var(--border);
    border-radius: 12px;
    background: var(--white);
    font-family: 'DM Sans', sans-serif;
    font-weight: 600;
    font-size: 0.8rem;
    cursor: pointer;
    transition: all 0.2s;
    color: var(--text-light);
    text-align: center;
}

.btn-scenario:hover {
    border-color: var(--primary);
    color: var(--primary);
    background: rgba(59, 130, 246, 0.04);
}

.btn-scenario.active {
    border-color: var(--primary);
    background: rgba(59, 130, 246, 0.08);
    color: var(--primary);
}

/* ============================================================
   ACTION BUTTONS
   ============================================================ */
.action-buttons {
    display: grid;
    grid-template-columns: auto auto 1fr;
    gap: 0.75rem;
    margin-top: 0.5rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.6rem;
    padding: 1.1rem 1.75rem;
    border: none;
    border-radius: 14px;
    font-weight: 700;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    text-decoration: none;
    font-family: 'DM Sans', sans-serif;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--gradient-main);
    color: white;
    box-shadow: var(--shadow-lg);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 20px 40px -12px rgba(102, 126, 234, 0.5);
}

.btn-share {
    background: var(--white);
    color: var(--primary);
    border: 2px solid var(--border);
    font-size: 0.9rem;
    white-space: nowrap;
}

.btn-share:hover {
    border-color: var(--primary);
    background: rgba(59, 130, 246, 0.04);
    transform: translateY(-2px);
}

.btn-reset {
    background: var(--white);
    color: var(--text-light);
    border: 2px solid var(--border);
    font-size: 1.1rem;
    padding: 1.1rem 1rem;
    border-radius: 14px;
    white-space: nowrap;
}

.btn-reset:hover {
    border-color: var(--danger);
    color: var(--danger);
    background: rgba(239, 68, 68, 0.04);
    transform: translateY(-2px);
    transform: rotate(180deg) translateY(2px);
}

/* ============================================================
   DOUGHNUT CHART
   ============================================================ */
.chart-card {
    background: var(--white);
    border-radius: 18px;
    padding: 1.75rem;
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    margin-bottom: 1.25rem;
    position: relative;
    overflow: hidden;
}

.chart-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 4px;
    background: var(--gradient-main);
}

.chart-title {
    font-size: 0.9rem;
    color: var(--text-light);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 1.25rem;
}

.chart-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    align-items: center;
}

.chart-canvas-wrap {
    position: relative;
    max-width: 220px;
    margin: 0 auto;
}

.chart-legend {
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    font-size: 0.92rem;
    font-weight: 500;
    color: var(--text);
}

.legend-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    flex-shrink: 0;
}

.legend-value {
    margin-left: auto;
    font-weight: 700;
    font-family: 'Inter', sans-serif;
    color: var(--dark);
    font-size: 0.9rem;
}

@media (max-width: 480px) {
    .chart-layout {
        grid-template-columns: 1fr;
    }
    .chart-canvas-wrap {
        max-width: 180px;
    }
}

.btn-block {
    width: 100%;
}

/* Share toast */
.share-toast {
    display: none;
    text-align: center;
    margin-top: 0.75rem;
    padding: 0.6rem 1rem;
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.3);
    color: #065f46;
    border-radius: 10px;
    font-size: 0.85rem;
    font-weight: 600;
    animation: slideIn 0.3s ease;
}

/* ============================================================
   RESULTS GRID
   ============================================================ */
.results-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(270px, 1fr));
    gap: 1.25rem;
    margin-bottom: 1.5rem;
}

.metric-card {
    background: var(--white);
    border-radius: 18px;
    padding: 1.75rem;
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.metric-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-main);
}

.metric-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-xl);
}

.metric-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 0.75rem;
}

.metric-title {
    font-size: 0.88rem;
    color: var(--text-light);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.metric-icon {
    font-size: 1.6rem;
    opacity: 0.7;
}

.metric-value {
    font-size: 2.6rem;
    font-weight: 800;
    color: var(--dark);
    line-height: 1;
    margin-bottom: 0.4rem;
    font-family: 'Inter', sans-serif;
}

.metric-subtitle {
    font-size: 0.95rem;
    color: var(--text-light);
    font-weight: 500;
}

.metric-positive { color: var(--success); }
.metric-negative { color: var(--danger); }
.metric-warning { color: var(--warning); }
.metric-info { color: var(--primary); }

/* ============================================================
   ALERTS
   ============================================================ */
.alert {
    padding: 1.25rem 1.5rem;
    border-radius: 14px;
    margin-bottom: 1.25rem;
    font-weight: 500;
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    font-size: 1.05rem;
    line-height: 1.6;
}

.alert-warning {
    background: rgba(245, 158, 11, 0.1);
    border: 1px solid rgba(245, 158, 11, 0.3);
    color: #92400e;
}

.alert-danger {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.3);
    color: #991b1b;
}

.alert-info {
    background: rgba(59, 130, 246, 0.1);
    border: 1px solid rgba(59, 130, 246, 0.3);
    color: #1e40af;
}

/* ============================================================
   EMPTY STATE
   ============================================================ */
.empty-state {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--text-light);
}

.empty-state-icon {
    font-size: 4rem;
    margin-bottom: 1.5rem;
    opacity: 0.6;
}

.empty-state h3 {
    color: var(--dark);
    margin-bottom: 0.75rem;
    font-size: 1.3rem;
    font-weight: 700;
}

.empty-state p {
    font-size: 0.95rem;
    max-width: 400px;
    margin: 0 auto;
    line-height: 1.7;
}

/* ============================================================
   PROJECTION TABLE
   ============================================================ */
.projection-table-container {
    overflow-x: auto;
    margin: 1.5rem 0;
    border-radius: 16px;
    box-shadow: var(--shadow);
    background: var(--white);
    border: 1px solid var(--border);
}

.projection-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.95rem;
    font-family: 'Inter', sans-serif;
}

.projection-table th,
.projection-table td {
    padding: 1rem 0.9rem;
    text-align: right;
    border-bottom: 1px solid var(--border);
}

.projection-table th {
    background: var(--light);
    color: var(--dark);
    font-weight: 700;
    text-transform: uppercase;
    font-size: 0.82rem;
    letter-spacing: 0.5px;
    position: sticky;
    top: 0;
    z-index: 10;
    font-family: 'DM Sans', sans-serif;
}

.projection-table td:first-child,
.projection-table th:first-child {
    text-align: left;
    padding-left: 1.1rem;
}

.projection-table tbody tr:hover {
    background: rgba(59, 130, 246, 0.04);
}

.projection-table .metric-positive { color: var(--success); font-weight: 600; }
.projection-table .metric-negative { color: var(--danger); font-weight: 600; }
.projection-table .metric-info { color: var(--primary); font-weight: 600; }

/* ============================================================
   FLOATING SUMMARY
   ============================================================ */
.floating-summary {
    position: fixed;
    bottom: 1.5rem;
    right: 1.5rem;
    background: rgba(15, 23, 42, 0.92);
    backdrop-filter: blur(20px) saturate(150%);
    border: 1px solid rgba(255,255,255,0.15);
    border-radius: 18px;
    padding: 1.25rem 1.75rem;
    box-shadow: 0 24px 48px rgba(0,0,0,0.3);
    z-index: 50;
    display: none;
    color: white;
    min-width: 180px;
}

.floating-summary.visible {
    display: block;
    animation: slideUp 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.floating-label {
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    opacity: 0.6;
    margin-bottom: 0.35rem;
}

.floating-value {
    font-size: 2rem;
    font-weight: 800;
    font-family: 'Inter', sans-serif;
    line-height: 1;
    margin-bottom: 0.25rem;
}

.floating-tir {
    font-size: 0.95rem;
    opacity: 0.7;
    font-weight: 600;
}

/* ============================================================
   SEO SECTION — contenido semántico
   ============================================================ */
.seo-section {
    margin-top: 1rem;
    padding-top: 2.5rem;
    border-top: 1px solid rgba(255,255,255,0.15);
}

.seo-intro {
    max-width: 860px;
    margin: 0 auto 3rem;
    text-align: center;
    color: white;
}

.seo-intro h2 {
    font-size: clamp(1.4rem, 3vw, 2rem);
    font-weight: 800;
    margin-bottom: 1rem;
    line-height: 1.3;
}

.seo-intro p {
    font-size: 1rem;
    opacity: 0.85;
    line-height: 1.8;
    margin-bottom: 0.75rem;
}

.seo-metrics-guide {
    margin-bottom: 3rem;
}

.seo-metrics-guide > h2 {
    font-size: clamp(1.2rem, 2.5vw, 1.6rem);
    font-weight: 800;
    color: white;
    text-align: center;
    margin-bottom: 0.5rem;
}

.seo-metrics-guide > p {
    color: rgba(255,255,255,0.75);
    text-align: center;
    margin-bottom: 1.5rem;
    font-size: 0.95rem;
}

.seo-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.25rem;
}

.seo-card {
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 18px;
    padding: 1.75rem;
    color: white;
    transition: background 0.2s;
}

.seo-card:hover {
    background: rgba(255, 255, 255, 0.12);
}

.seo-icon {
    font-size: 2rem;
    margin-bottom: 0.75rem;
}

.seo-card h3 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 0.6rem;
    color: white;
}

.seo-card p {
    font-size: 0.95rem;
    line-height: 1.7;
    color: rgba(255,255,255,0.82);
    margin-bottom: 0.75rem;
}

.metric-guide-tag {
    display: inline-block;
    background: rgba(255,255,255,0.12);
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: 20px;
    padding: 0.3rem 0.85rem;
    font-size: 0.82rem;
    font-weight: 600;
    color: rgba(255,255,255,0.9);
}

/* Artículo largo */
.seo-article {
    background: rgba(255,255,255,0.07);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255,255,255,0.12);
    border-radius: 20px;
    padding: 2.5rem;
    color: white;
    margin-bottom: 1.5rem;
}

.seo-article h2 {
    font-size: clamp(1.2rem, 2.5vw, 1.6rem);
    font-weight: 800;
    margin-bottom: 1.5rem;
    color: white;
}

.seo-article h3 {
    font-size: 1.1rem;
    font-weight: 700;
    color: rgba(255,255,255,0.95);
    margin: 1.75rem 0 0.6rem;
}

.seo-article h3:first-of-type {
    margin-top: 0;
}

.seo-article p {
    font-size: 0.97rem;
    line-height: 1.8;
    color: rgba(255,255,255,0.82);
    margin-bottom: 0.5rem;
}

.seo-article strong {
    color: white;
    font-weight: 700;
}

.seo-article em {
    color: rgba(255,255,255,0.65);
    font-style: italic;
}

/* Disclaimer box */
.seo-disclaimer-box {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
    background: rgba(245, 158, 11, 0.1);
    border: 1px solid rgba(245, 158, 11, 0.3);
    border-radius: 14px;
    padding: 1.25rem 1.5rem;
    color: rgba(255,255,255,0.85);
    font-size: 0.9rem;
    line-height: 1.7;
}

.seo-disclaimer-icon {
    font-size: 1.5rem;
    flex-shrink: 0;
    margin-top: 0.1rem;
}

.seo-disclaimer-box strong {
    color: white;
}

@media (max-width: 768px) {
    .seo-article {
        padding: 1.5rem;
    }
    .seo-grid {
        grid-template-columns: 1fr;
    }
}

/* ============================================================
   DESGLOSE / CASHFLOW CARDS
   ============================================================ */
.detail-card {
    background: var(--white);
    border-radius: 18px;
    padding: 1.75rem;
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    margin-bottom: 1.25rem;
}

.detail-card-title {
    font-size: 0.9rem;
    color: var(--text-light);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 1.1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.detail-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.55rem 0;
    font-size: 1rem;
    border-bottom: 1px solid var(--light);
}

.detail-row:last-child {
    border-bottom: none;
}

.detail-row.total {
    font-weight: 700;
    font-size: 1.1rem;
    padding-top: 0.75rem;
    margin-top: 0.25rem;
    border-top: 2px solid var(--border);
    border-bottom: none;
}

/* ============================================================
   COMPARISON TABLE
   ============================================================ */
.comparison-table {
    width: 100%;
}

.comparison-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.65rem 0;
    border-bottom: 1px solid var(--light);
    font-size: 1rem;
}

.comparison-row:last-child {
    border-bottom: none;
}

.comparison-row.highlight {
    font-weight: 700;
    font-size: 1.1rem;
    padding: 0.75rem 0.75rem;
    background: rgba(59, 130, 246, 0.06);
    border-radius: 10px;
    margin-bottom: 0.5rem;
}

.comparison-bar-wrap {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex: 1;
    margin-left: 1rem;
}

.comparison-bar {
    height: 6px;
    border-radius: 3px;
    background: var(--border);
    flex: 1;
    overflow: hidden;
}

.comparison-bar-fill {
    height: 100%;
    border-radius: 3px;
    background: var(--gradient-main);
    transition: width 0.5s ease;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 768px) {
    .main-content {
        padding: 1.5rem 1rem 3rem;
    }

    .card-body {
        padding: 1.5rem 1.25rem 2rem;
    }

    .card-header {
        padding: 1.5rem;
    }

    .metric-value {
        font-size: 1.75rem;
    }

    .results-grid {
        grid-template-columns: 1fr;
    }

    .projection-table {
        font-size: 0.75rem;
    }

    .projection-table th,
    .projection-table td {
        padding: 0.65rem 0.5rem;
    }

    .action-buttons {
        grid-template-columns: auto auto 1fr;
    }

    .btn-share {
        order: unset;
    }

    .floating-summary.visible {
        display: block;
        bottom: 1rem;
        right: 1rem;
        left: 1rem;
        min-width: unset;
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: 1rem 1.5rem;
    }

    .floating-label {
        margin-bottom: 0;
    }

    .floating-value {
        font-size: 1.4rem;
        margin-bottom: 0;
    }

    .seo-grid {
        grid-template-columns: 1fr;
    }

    .disclaimer-modal {
        padding: 2rem 1.5rem;
    }
}

/* ============================================================
   SCROLLBAR
   ============================================================ */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: var(--light); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-light); }

/* ============================================================
   ADSENSE BANNER
   ============================================================ */
.ad-banner-container {
    margin: 2rem auto 0;
    max-width: 900px;
    padding: 0 1.5rem;
    text-align: center;
}

.ad-label {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: rgba(255, 255, 255, 0.4);
    margin-bottom: 0.4rem;
    font-weight: 600;
}

.adsbygoogle {
    min-height: 90px;
    background: rgba(255,255,255,0.05);
    border-radius: 12px;
    border: 1px dashed rgba(255,255,255,0.15);
}

/* ============================================================
   SITE FOOTER — café + disclaimer
   ============================================================ */
.site-footer {
    background: rgba(0, 0, 0, 0.25);
    backdrop-filter: blur(10px);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 2.5rem 1.5rem 3rem;
    margin-top: 3rem;
    text-align: center;
    color: white;
}

.footer-inner {
    max-width: 540px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.1rem;
}

.footer-text {
    font-size: 1rem;
    opacity: 0.75;
    font-weight: 500;
}

.btn-coffee {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    color: white;
    font-family: 'DM Sans', sans-serif;
    font-weight: 700;
    font-size: 1.05rem;
    padding: 0.9rem 2rem;
    border-radius: 50px;
    text-decoration: none;
    box-shadow: 0 8px 24px rgba(245, 158, 11, 0.35);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: none;
    cursor: pointer;
}

.btn-coffee:hover {
    transform: translateY(-3px) scale(1.03);
    box-shadow: 0 16px 32px rgba(245, 158, 11, 0.45);
}

.btn-coffee:active {
    transform: translateY(0) scale(0.99);
}

.footer-disclaimer {
    font-size: 0.8rem;
    opacity: 0.45;
    line-height: 1.6;
    max-width: 420px;
}

@media (max-width: 768px) {
    .btn-coffee {
        font-size: 1rem;
        padding: 0.85rem 1.6rem;
        width: 100%;
        justify-content: center;
    }
}
/* Estilos para el Footer Legal */
.legal-info {
    text-align: center;
    margin-top: 2rem;
    padding-bottom: 2rem;
    font-size: 0.85rem;
}

/* Banner de Cookies Estilo Glass */
.cookie-banner {
    position: fixed;
    bottom: -100px; /* Escondido por defecto */
    left: 50%;
    transform: translateX(-50%);
    width: 90%;
    max-width: 600px;
    background: rgba(15, 23, 42, 0.9); /* Fondo oscuro elegante */
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: white;
    padding: 1rem 1.5rem;
    border-radius: 16px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
    z-index: 9999;
    transition: bottom 0.5s ease-in-out;
}

.cookie-banner.visible {
    bottom: 20px; /* Aparece suavemente */
}

.cookie-banner p {
    margin: 0;
    font-size: 0.9rem;
    line-height: 1.4;
}

.btn-cookie {
    background: var(--primary);
    color: white;
    border: none;
    padding: 8px 16px;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    margin-left: 15px;
    transition: background 0.2s;
}

.btn-cookie:hover {
    background: var(--primary-dark);
}

@media (max-width: 600px) {
    .cookie-banner {
        flex-direction: column;
        text-align: center;
        gap: 10px;
    }
    .btn-cookie { margin-left: 0; width: 100%; }
}