@import url('https://fonts.googleapis.com/css2?family=Roboto:wght@300;400;500;700&display=swap');

:root {
    --primary: #0f172a;
    --primary-light: #1e293b;
    --accent: #0284c7;
    --accent-hover: #0369a1;
    --bg-body: #f1f5f9;
    --surface: #ffffff;
    --text-main: #334155;
    --text-dark: #0f172a;
    --text-light: #64748b;
    --border: #cbd5e1;
    --radius: 8px; /* Un poco más suave */
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
}

* { box-sizing: border-box; margin: 0; padding: 0; outline: none; }

body {
    font-family: 'Roboto', sans-serif;
    background-color: var(--bg-body);
    color: var(--text-main);
    line-height: 1.5;
    display: flex; flex-direction: column; min-height: 100vh;
}

/* --- NAVBAR --- */
.navbar { background-color: var(--primary); color: white; position: sticky; top: 0; z-index: 1000; box-shadow: 0 4px 10px rgba(0,0,0,0.1); }
.navbar-container { max-width: 1400px; margin: 0 auto; padding: 0 20px; height: 64px; display: flex; align-items: center; justify-content: space-between; }
.brand { display: flex; align-items: center; gap: 10px; font-size: 1.2rem; font-weight: 700; color: white; }
.nav-links { display: flex; gap: 5px; }
.nav-links a { color: #cbd5e1; text-decoration: none; padding: 8px 16px; border-radius: 4px; font-size: 0.9rem; font-weight: 500; transition: all 0.2s; display: flex; align-items: center; gap: 8px; }
.nav-links a:hover { color: white; background: rgba(255,255,255,0.1); }
.nav-links a.active { background-color: var(--accent); color: white; }

/* --- LAYOUT PRINCIPAL (GRID CORREGIDO) --- */
.main-wrapper { flex: 1; max-width: 1400px; margin: 0 auto; padding: 30px 20px; width: 100%; }

.page-header { margin-bottom: 30px; border-bottom: 1px solid var(--border); padding-bottom: 20px; }
.page-header h1 { font-size: 1.8rem; color: var(--text-dark); font-weight: 700; }
.page-header p { color: var(--text-light); margin-top: 5px; }

/* AQUÍ ESTÁ EL CAMBIO IMPORTANTE: */
.workspace-grid { 
    display: grid; 
    /* Izquierda (Config) flexible | Derecha (Preview) fija a 420px */
    grid-template-columns: 1fr 420px; 
    gap: 40px; 
    align-items: start; 
}

.panel { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); padding: 30px; }
.panel-title { font-size: 1.1rem; font-weight: 700; color: var(--primary); margin-bottom: 25px; border-bottom: 2px solid var(--bg-body); padding-bottom: 12px; display: flex; align-items: center; gap: 10px; }

/* --- FORMULARIOS --- */
.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-size: 0.85rem; font-weight: 600; color: var(--text-dark); margin-bottom: 8px; text-transform: uppercase; letter-spacing: 0.5px; }
input, select, textarea { width: 100%; padding: 12px; border: 1px solid var(--border); border-radius: 6px; font-size: 0.95rem; background: #fff; font-family: inherit; transition: border 0.2s; }
input:focus, select:focus, textarea:focus { border-color: var(--accent); box-shadow: 0 0 0 4px rgba(2, 132, 199, 0.1); }
input[type="color"] { padding: 2px; height: 45px; cursor: pointer; }

/* --- GRID DE TIPOS --- */
.type-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(100px, 1fr)); gap: 10px; }
.type-btn { border: 1px solid var(--border); background: var(--bg-body); padding: 15px 5px; text-align: center; border-radius: 6px; cursor: pointer; font-size: 0.8rem; color: var(--text-light); transition: all 0.2s; font-weight: 500; }
.type-btn:hover { border-color: var(--accent); color: var(--accent); background: white; transform: translateY(-2px); box-shadow: 0 2px 5px rgba(0,0,0,0.05); }
.type-btn.active { background-color: var(--primary); color: white; border-color: var(--primary); box-shadow: 0 4px 10px rgba(15, 23, 42, 0.2); }
.type-btn i { display: block; font-size: 1.4rem; margin-bottom: 8px; }

/* --- BOTONES --- */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 14px 24px; border: none; border-radius: 6px; font-weight: 600; cursor: pointer; transition: all 0.2s; font-size: 1rem; width: 100%; }
.btn-primary { background-color: var(--accent); color: white; box-shadow: 0 4px 6px rgba(2, 132, 199, 0.2); }
.btn-primary:hover { background-color: var(--accent-hover); transform: translateY(-1px); box-shadow: 0 6px 12px rgba(2, 132, 199, 0.3); }
.btn-danger { background-color: #ef4444; color: white; width: auto; padding: 6px 12px; font-size: 0.8rem; border-radius: 4px; }

/* --- PREVIEW INDIVIDUAL (STICKY) --- */
.preview-container { 
    display: flex; 
    flex-direction: column; 
    align-items: center; 
    background: var(--bg-body); 
    border: 1px dashed var(--border); 
    /* Hace que el preview te siga al bajar */
    position: sticky; 
    top: 90px; 
}
#canvas { margin-bottom: 25px; background: white; padding: 20px; box-shadow: var(--shadow); border-radius: 8px; }

/* --- UPLOAD PRO --- */
.logo-upload-container { border: 2px dashed var(--border); border-radius: var(--radius); padding: 20px; text-align: center; background: #f8fafc; transition: all 0.2s; position: relative; cursor: pointer; }
.logo-upload-container:hover { border-color: var(--accent); background: #eff6ff; }
.logo-preview-wrapper { display: none; align-items: center; justify-content: center; flex-direction: column; gap: 10px; }
.logo-preview-img { max-width: 100px; max-height: 100px; border-radius: 6px; box-shadow: 0 2px 5px rgba(0,0,0,0.1); border: 1px solid #e2e8f0; }

/* --- PESTAÑAS Y TUTORIAL --- */
.tabs { display: flex; gap: 0; border-bottom: 2px solid var(--border); margin-bottom: 30px; }
.tab-btn { padding: 15px 25px; cursor: pointer; background: transparent; border: none; font-weight: 600; color: var(--text-light); border-bottom: 3px solid transparent; margin-bottom: -2px; font-size: 1rem; }
.tab-btn:hover { color: var(--primary); }
.tab-btn.active { color: var(--accent); border-bottom-color: var(--accent); background: linear-gradient(to top, #f0f9ff, transparent); }
.tab-content { display: none; animation: fadeIn 0.3s ease; }
.tab-content.active { display: block; }

@keyframes fadeIn { from { opacity: 0; transform: translateY(5px); } to { opacity: 1; transform: translateY(0); } }

/* Tutorial Styles */
.tutorial-wrapper { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; margin-bottom: 30px; box-shadow: 0 2px 5px rgba(0,0,0,0.05); }
.tutorial-header { background: #f8fafc; padding: 20px 25px; border-bottom: 1px solid var(--border); display: flex; justify-content: space-between; align-items: center; }
.tutorial-content { padding: 25px; display: grid; grid-template-columns: 1fr 1.2fr; gap: 40px; }
.step-list { list-style: none; counter-reset: step; }
.step-item { position: relative; padding-left: 45px; margin-bottom: 25px; }
.step-item::before { counter-increment: step; content: counter(step); position: absolute; left: 0; top: 0; width: 32px; height: 32px; background: var(--accent); color: white; border-radius: 50%; text-align: center; line-height: 32px; font-weight: bold; font-size: 0.9rem; }
.step-item h4 { margin: 0 0 5px 0; color: var(--primary); font-size: 1rem; }
.step-item p { font-size: 0.9rem; color: var(--text-light); margin: 0; }
.info-box { background: #fffbeb; border-left: 4px solid #f59e0b; padding: 15px; margin-top: 20px; border-radius: 4px; font-size: 0.85rem; color: #92400e; }
.info-box strong { display: block; margin-bottom: 5px; }

/* Excel Visual */
.fake-excel { background: #fff; border: 1px solid #d1d5db; border-radius: 4px; font-family: monospace; font-size: 0.85rem; box-shadow: 0 4px 10px rgba(0,0,0,0.05); }
.excel-header { background: #f3f4f6; border-bottom: 1px solid #d1d5db; padding: 8px 15px; display: flex; gap: 10px; color: #4b5563; font-weight: bold; }
.excel-row { display: flex; border-bottom: 1px solid #e5e7eb; }
.excel-cell { padding: 10px 15px; border-right: 1px solid #e5e7eb; flex: 1; color: #1f2937; }
.excel-cell.highlight { background: #eff6ff; color: var(--accent-hover); }

/* Bulk Upload */
.bulk-layout { display: grid; grid-template-columns: 1fr; gap: 30px; }
.upload-area { border: 2px dashed var(--border); padding: 50px; text-align: center; background: var(--bg-body); cursor: pointer; transition: all 0.2s; border-radius: 8px; }
.upload-area:hover { border-color: var(--accent); background: #f0f9ff; }

/* RESPONSIVE */
@media (max-width: 1000px) {
    .workspace-grid { grid-template-columns: 1fr; }
    .navbar-container { flex-direction: column; height: auto; padding: 15px; gap: 10px; }
    .nav-links { width: 100%; overflow-x: auto; padding-bottom: 5px; justify-content: center; }
    .tutorial-content { grid-template-columns: 1fr; }
    .tutorial-header { flex-direction: column; gap: 15px; text-align: center; }
    .preview-container { position: static; width: 100%; margin-top: 30px; }
}