/* ═══════════════════════════════════════════════════════════════
   🍽️ PLAN NUTRICIONAL - TEMA FUTURISTA OSCURO
   ═══════════════════════════════════════════════════════════════ */

/* CONTENEDOR PRINCIPAL */
.nutrition-container {
    display: grid;
    grid-template-columns: 1.3fr 1fr;
    gap: 2rem;
    align-items: start;
    perspective: 1000px;
}

@media (max-width: 1200px) {
    .nutrition-container {
        grid-template-columns: 1fr;
    }
}

/* FORMULARIO FUTURISTA */
.nutrition-form {
    background: var(--bg-card);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 2rem;
    box-shadow: var(--shadow-soft);
    position: relative;
    overflow: hidden;
    transition: all var(--transition-smooth);
    transform-style: preserve-3d;
}

.nutrition-form::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--accent), var(--primary));
    background-size: 200% 100%;
    animation: borderFlow 3s linear infinite;
}

.nutrition-form:hover {
    border-color: var(--border-glow);
    box-shadow: var(--shadow-neon);
    transform: translateY(-5px);
}

.form-section {
    margin-bottom: 2rem;
    animation: fadeIn 0.5s ease-out;
}

.form-section-title {
    font-size: 1.1rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border);
    position: relative;
}

.form-section-title::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 50px;
    height: 2px;
    background: var(--primary);
    box-shadow: var(--primary-glow);
}

.form-group {
    margin-bottom: 1.2rem;
}

label {
    display: block;
    font-weight: 500;
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
    transition: color var(--transition-fast);
}

label:hover {
    color: var(--text-primary);
}

input, select, textarea {
    width: 100%;
    padding: 0.85rem 1rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-family: var(--font-main);
    font-size: 0.95rem;
    color: var(--text-primary);
    transition: all var(--transition-smooth);
}

input::placeholder, textarea::placeholder {
    color: var(--text-muted);
}

input:hover, select:hover, textarea:hover {
    border-color: var(--border-glow);
}

input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-light), var(--primary-glow);
    background: var(--bg-secondary);
}

select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%2300ff88' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10l-5 5z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
}

textarea {
    resize: vertical;
    min-height: 100px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.form-row-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
}

/* ═══════════════════════════════════════════════════════════════
   🎯 BOTONES FUTURISTAS
   ═══════════════════════════════════════════════════════════════ */

.btn-group {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
}

.btn {
    flex: 1;
    padding: 0.85rem 1.5rem;
    border: none;
    border-radius: var(--radius-sm);
    font-weight: 600;
    cursor: pointer;
    font-size: 0.95rem;
    position: relative;
    overflow: hidden;
    transition: all var(--transition-smooth);
    transform-style: preserve-3d;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: var(--bg-primary);
    box-shadow: 0 4px 15px rgba(0, 255, 136, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: var(--primary-glow), 0 10px 30px rgba(0, 255, 136, 0.4);
}

.btn-primary:active {
    transform: translateY(-1px) scale(0.98);
}

.btn-secondary {
    background: var(--bg-glass);
    color: var(--text-primary);
    border: 1px solid var(--border);
    backdrop-filter: var(--glass-blur);
}

.btn-secondary:hover {
    background: var(--bg-tertiary);
    border-color: var(--accent);
    color: var(--accent);
    box-shadow: var(--accent-glow);
    transform: translateY(-3px);
}

.btn-small {
    padding: 0.5rem 1rem;
    font-size: 0.85rem;
}

.btn-remove {
    background: linear-gradient(135deg, #ff4444 0%, #cc0000 100%);
    color: white;
    padding: 0.4rem 0.8rem;
    font-size: 0.8rem;
    box-shadow: 0 4px 15px rgba(255, 68, 68, 0.3);
}

.btn-remove:hover {
    box-shadow: 0 0 20px rgba(255, 68, 68, 0.5);
    transform: translateY(-2px) scale(1.05);
}

.btn-add {
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    color: var(--bg-primary);
    padding: 0.7rem 1.4rem;
    margin-top: 0.8rem;
    font-weight: 600;
}

.btn-add:hover {
    box-shadow: var(--primary-glow);
    transform: translateY(-3px);
}

/* ═══════════════════════════════════════════════════════════════
   🃏 TARJETAS DINÁMICAS - MEAL CARDS
   ═══════════════════════════════════════════════════════════════ */

.meal-card {
    background: var(--bg-glass);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--border-glow);
    border-radius: var(--radius);
    padding: 1.25rem;
    margin-bottom: 1rem;
    transition: all var(--transition-smooth);
    position: relative;
    overflow: hidden;
    transform-style: preserve-3d;
}

.meal-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(180deg, var(--primary), var(--accent));
    box-shadow: var(--primary-glow);
}

.meal-card:hover {
    transform: translateX(5px) translateY(-3px);
    border-color: var(--primary);
    box-shadow: var(--shadow-neon);
}

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

.meal-card-title {
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-size: 1rem;
}

.meal-card-actions {
    display: flex;
    gap: 0.5rem;
}

/* ═══════════════════════════════════════════════════════════════
   👁️ PREVIEW FUTURISTA
   ═══════════════════════════════════════════════════════════════ */

.nutrition-preview {
    background: var(--bg-card);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 2rem;
    box-shadow: var(--shadow-soft);
    max-height: 85vh;
    overflow-y: auto;
    position: relative;
    transition: all var(--transition-smooth);
}

.nutrition-preview::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 100px;
    height: 100px;
    background: radial-gradient(circle, rgba(0, 255, 136, 0.1) 0%, transparent 70%);
    pointer-events: none;
}

.nutrition-preview:hover {
    border-color: var(--border-glow);
}

.preview-title {
    font-size: 1.1rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.preview-title::before {
    content: '◈';
    color: var(--primary);
    -webkit-text-fill-color: var(--primary);
    animation: glowPulse 2s infinite;
}

#nutritionPreview {
    background: var(--bg-tertiary);
    font-family: 'Arial', sans-serif;
    font-size: 11px;
    border-radius: var(--radius-sm);
    overflow: hidden;
    border: 1px solid var(--border);
}

/* ═══════════════════════════════════════════════════════════════
   ⚡ SECCIÓN DE PRESETS - CARGA RÁPIDA
   ═══════════════════════════════════════════════════════════════ */

.presets-section {
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: var(--bg-glass);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    position: relative;
    overflow: hidden;
}

.presets-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--accent), var(--primary), var(--accent));
    animation: borderFlow 4s linear infinite;
    background-size: 200% 100%;
}

.presets-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-top: 1rem;
}

.preset-btn {
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 1rem;
    cursor: pointer;
    transition: all var(--transition-smooth);
    text-align: left;
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.preset-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--preset-color, var(--primary));
    opacity: 0.7;
    transition: all var(--transition-smooth);
}

.preset-btn::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, transparent 60%, rgba(255, 255, 255, 0.03) 100%);
    pointer-events: none;
}

.preset-btn:hover {
    border-color: var(--preset-color, var(--primary));
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3),
                0 0 20px color-mix(in srgb, var(--preset-color, var(--primary)) 30%, transparent);
}

.preset-btn:hover::before {
    width: 6px;
    opacity: 1;
    box-shadow: 0 0 15px var(--preset-color, var(--primary));
}

.preset-btn:active {
    transform: translateY(-1px) scale(0.98);
}

.preset-name {
    font-weight: 700;
    font-size: 0.95rem;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.preset-desc {
    font-size: 0.8rem;
    color: var(--text-muted);
    line-height: 1.4;
}

/* ═══════════════════════════════════════════════════════════════
   📄 VISTA PREVIA DEL PDF - ESTILO MINIMALISTA OSCURO
   ═══════════════════════════════════════════════════════════════ */

.pdf-preview-container {
    background: var(--bg-secondary);
    padding: 1.5rem;
    border-radius: var(--radius-sm);
    color: var(--text-primary);
}

.pdf-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--primary);
    margin-bottom: 1.5rem;
}

.pdf-logo {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 900;
    font-size: 1.2rem;
    color: var(--bg-primary);
    box-shadow: var(--primary-glow);
}

.pdf-title-section h1 {
    font-size: 1.3rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin: 0;
}

.pdf-title-section span {
    font-size: 0.8rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 2px;
}

.pdf-client-info {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 0.5rem;
    background: var(--bg-glass);
    border-radius: var(--radius-sm);
    padding: 1rem;
    margin-bottom: 1.5rem;
    border: 1px solid var(--border);
}

.pdf-client-info .info-item {
    text-align: center;
}

.pdf-client-info .info-label {
    font-size: 0.65rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    display: block;
    margin-bottom: 0.3rem;
}

.pdf-client-info .info-value {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--text-primary);
}

.pdf-macros-bar {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}

.pdf-macro-item {
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 0.75rem;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.pdf-macro-item::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--primary);
}

.pdf-macro-item.protein::before { background: #ef4444; }
.pdf-macro-item.carbs::before { background: #f59e0b; }
.pdf-macro-item.fats::before { background: #3b82f6; }

.pdf-macro-item .macro-label {
    font-size: 0.7rem;
    color: var(--text-muted);
    text-transform: uppercase;
}

.pdf-macro-item .macro-value {
    font-size: 1.1rem;
    font-weight: 800;
    color: var(--text-primary);
}

.pdf-menu-section {
    margin-bottom: 1.5rem;
}

.pdf-menu-title {
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.pdf-menu-title::before {
    content: '▸';
    color: var(--accent);
}

.pdf-meals-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1rem;
}

.pdf-meal-card {
    background: var(--bg-glass);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 1rem;
    position: relative;
}

.pdf-meal-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, var(--primary), transparent);
}

.pdf-meal-name {
    font-weight: 700;
    font-size: 0.85rem;
    color: var(--primary);
    margin-bottom: 0.75rem;
}

.pdf-meal-foods {
    font-size: 0.75rem;
    color: var(--text-secondary);
    line-height: 1.6;
    white-space: pre-line;
}

.pdf-meal-macros {
    display: flex;
    gap: 0.5rem;
    margin-top: 0.75rem;
    padding-top: 0.75rem;
    border-top: 1px solid var(--border);
    flex-wrap: wrap;
}

.pdf-meal-macro {
    font-size: 0.65rem;
    padding: 0.2rem 0.5rem;
    border-radius: 20px;
    background: var(--bg-tertiary);
    color: var(--text-muted);
}

.pdf-meal-macro.kcal {
    background: var(--primary-light);
    color: var(--primary);
    font-weight: 600;
}

.pdf-notes {
    background: var(--bg-glass);
    border: 1px solid var(--border);
    border-left: 3px solid var(--accent);
    border-radius: var(--radius-sm);
    padding: 1rem;
    margin-top: 1.5rem;
}

.pdf-notes-title {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--accent);
    margin-bottom: 0.5rem;
}

.pdf-notes-content {
    font-size: 0.75rem;
    color: var(--text-secondary);
    line-height: 1.6;
    white-space: pre-line;
}

/* ═══════════════════════════════════════════════════════════════
   ⚙️ PANEL DE CONFIGURACIÓN / SETTINGS
   ═══════════════════════════════════════════════════════════════ */

.settings-container {
    display: grid;
    grid-template-columns: 1.3fr 1fr;
    gap: 2rem;
    align-items: start;
}

.settings-main {
    background: var(--bg-card);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 2rem;
    box-shadow: var(--shadow-soft);
}

.settings-main::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--accent), var(--primary), var(--accent));
}

.settings-subtitle {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 2rem;
}

.section-description {
    color: var(--text-muted);
    font-size: 0.85rem;
    margin-bottom: 1rem;
}

/* Grid de Temas */
.theme-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1rem;
}

.theme-card {
    background: var(--bg-glass);
    border: 2px solid var(--border);
    border-radius: var(--radius);
    padding: 1rem;
    cursor: pointer;
    transition: all var(--transition-smooth);
    position: relative;
    overflow: hidden;
}

.theme-card:hover {
    border-color: var(--primary);
    transform: translateY(-5px);
    box-shadow: var(--shadow-neon);
}

.theme-card.active {
    border-color: var(--primary);
    background: var(--primary-light);
}

.theme-preview {
    height: 100px;
    border-radius: var(--radius-sm);
    overflow: hidden;
    margin-bottom: 0.75rem;
    position: relative;
}

.theme-preview-content {
    padding: 8px;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.theme-preview-header {
    height: 15px;
    border-radius: 3px;
    margin-bottom: 8px;
}

.theme-preview-body {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.theme-preview-line {
    height: 8px;
    border-radius: 2px;
    opacity: 0.8;
}

.theme-preview-line.short {
    width: 60%;
    background: rgba(255,255,255,0.3);
}

.theme-info {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.theme-name {
    font-weight: 700;
    font-size: 0.9rem;
    color: var(--text-primary);
}

.theme-description {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.theme-check {
    position: absolute;
    top: 10px;
    right: 10px;
    width: 24px;
    height: 24px;
    background: var(--primary);
    color: var(--bg-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    opacity: 0;
    transform: scale(0);
    transition: all var(--transition-smooth);
}

.theme-check.visible {
    opacity: 1;
    transform: scale(1);
}

/* Configuración Grid */
.config-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.config-item {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.config-select {
    width: 100%;
    padding: 0.85rem 1rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 0.9rem;
    cursor: pointer;
}

.config-hint {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* Toggle Options */
.toggle-options {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.toggle-item {
    display: flex;
    align-items: center;
}

.toggle-label {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    cursor: pointer;
    user-select: none;
}

.toggle-label input[type="checkbox"] {
    display: none;
}

.toggle-switch {
    width: 48px;
    height: 26px;
    background: var(--bg-tertiary);
    border-radius: 13px;
    position: relative;
    transition: all var(--transition-smooth);
    border: 1px solid var(--border);
}

.toggle-switch::after {
    content: '';
    position: absolute;
    top: 2px;
    left: 2px;
    width: 20px;
    height: 20px;
    background: var(--text-muted);
    border-radius: 50%;
    transition: all var(--transition-smooth);
}

.toggle-label input:checked + .toggle-switch {
    background: var(--primary);
    border-color: var(--primary);
}

.toggle-label input:checked + .toggle-switch::after {
    left: 24px;
    background: var(--bg-primary);
}

.toggle-text {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Settings Preview */
.settings-preview {
    background: var(--bg-card);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 2rem;
    box-shadow: var(--shadow-soft);
    position: sticky;
    top: 100px;
}

.theme-live-preview {
    border-radius: var(--radius-sm);
    overflow: hidden;
    margin-bottom: 1rem;
}

/* Preview Page Mock */
.preview-page {
    padding: 1.5rem;
    border-radius: var(--radius-sm);
    position: relative;
    overflow: hidden;
    min-height: 400px;
}

.preview-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding-bottom: 1rem;
    margin-bottom: 1rem;
}

.preview-logo {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 900;
    font-size: 0.9rem;
}

.preview-title-area h3 {
    margin: 0;
    font-size: 1rem;
}

.preview-title-area span {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.preview-data-bar {
    display: flex;
    justify-content: space-around;
    padding: 0.75rem;
    border-radius: 5px;
    margin-bottom: 1rem;
}

.preview-data-item {
    text-align: center;
}

.preview-data-item span {
    display: block;
    font-size: 0.6rem;
    text-transform: uppercase;
}

.preview-data-item strong {
    font-size: 0.8rem;
}

.preview-macros {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.preview-macro {
    flex: 1;
    padding: 0.5rem;
    border-radius: 5px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.preview-macro span {
    display: block;
    font-size: 0.55rem;
    text-transform: uppercase;
}

.preview-macro strong {
    font-size: 0.9rem;
}

.preview-macro-bar {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 3px;
}

.preview-meals {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.preview-meal {
    flex: 1;
    padding: 0.75rem;
    border-radius: 5px;
}

.preview-meal h4 {
    font-size: 0.7rem;
    margin: 0 0 0.5rem 0;
}

.preview-meal p {
    font-size: 0.6rem;
    line-height: 1.4;
    margin: 0;
}

.preview-meal small {
    font-size: 0.5rem;
    display: block;
    margin-top: 0.5rem;
}

.preview-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 1rem;
    margin-top: auto;
}

.preview-footer-logo {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.5rem;
    font-weight: bold;
}

.preview-footer span {
    font-size: 0.6rem;
}

.preview-watermark {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) rotate(-30deg);
    font-size: 2rem;
    font-weight: 900;
    opacity: 0.03;
    pointer-events: none;
    white-space: nowrap;
}

.preview-actions {
    display: flex;
    gap: 0.5rem;
}

.settings-actions {
    margin-top: 2rem;
}

.btn-accent {
    background: linear-gradient(135deg, var(--accent) 0%, #0099cc 100%);
    color: var(--bg-primary);
}

.btn-accent:hover {
    box-shadow: var(--accent-glow);
    transform: translateY(-3px);
}

/* ═══════════════════════════════════════════════════════════════
   🔔 MODAL STYLES
   ═══════════════════════════════════════════════════════════════ */

.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    animation: fadeIn 0.3s ease;
}

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

.modal-content {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    max-width: 600px;
    width: 90%;
    max-height: 90vh;
    overflow: hidden;
    animation: slideIn 0.3s ease;
}

.modal-content.modal-large {
    max-width: 900px;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem;
    border-bottom: 1px solid var(--border);
}

.modal-header h2 {
    margin: 0;
    font-size: 1.2rem;
    color: var(--text-primary);
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--text-muted);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.modal-close:hover {
    color: var(--primary);
    transform: rotate(90deg);
}

.modal-body {
    padding: 1.5rem;
    max-height: 60vh;
    overflow-y: auto;
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 1rem;
    padding: 1.5rem;
    border-top: 1px solid var(--border);
}

/* ═══════════════════════════════════════════════════════════════
   🎭 ANIMACIONES ADICIONALES
   ═══════════════════════════════════════════════════════════════ */

.fade-out {
    opacity: 0;
    transform: translateY(-10px);
    transition: all 0.15s ease;
}

.fade-in {
    animation: fadeIn 0.3s ease;
}

.loading-message {
    text-align: center;
    padding: 4rem;
    color: var(--text-muted);
    font-size: 1.1rem;
}

/* ═══════════════════════════════════════════════════════════════
   👣 FOOTER MEJORADO
   ═══════════════════════════════════════════════════════════════ */

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
}

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

.footer-logo {
    width: 30px;
    height: 30px;
    background: var(--primary);
    color: var(--bg-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 0.8rem;
}

.footer-links {
    display: flex;
    gap: 2rem;
}

.footer-links a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.85rem;
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: var(--primary);
}

/* ═══════════════════════════════════════════════════════════════
   📱 RESPONSIVE
   ═══════════════════════════════════════════════════════════════ */

@media (max-width: 1200px) {
    .settings-container {
        grid-template-columns: 1fr;
    }
    
    .settings-preview {
        position: static;
    }
}

@media (max-width: 768px) {
    .form-row, .form-row-3 {
        grid-template-columns: 1fr;
    }
    
    .btn-group {
        flex-direction: column;
    }
    
    .nutrition-form,
    .nutrition-preview,
    .settings-main,
    .settings-preview {
        padding: 1.5rem;
    }
    
    .presets-grid,
    .theme-grid {
        grid-template-columns: 1fr;
    }
    
    .config-grid {
        grid-template-columns: 1fr;
    }
    
    .pdf-client-info {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .pdf-macros-bar {
        grid-template-columns: 1fr;
    }
    
    .preview-meals {
        flex-direction: column;
    }
    
    .preview-macros {
        flex-direction: column;
    }
}