/* =========================
   TEMA UTAMA (WHITE MODERN)
========================= */
* { box-sizing: border-box; }

body {
    font-family: 'Poppins', sans-serif;
    background: #f4f7f6;
    margin: 0;
    padding: 30px 20px;
    color: #333;
}

.app-container { max-width: 1000px; margin: auto; }
.main-header { text-align: center; margin-bottom: 30px; }
.main-header h1 { margin: 0; font-size: 2.5rem; font-weight: 700; color: #1a1a1a; letter-spacing: -1px; }
.main-header p { color: #666; margin-top: 5px; font-weight: 300; }

/* PROGRESS BAR */
.progress-bar { display: flex; justify-content: space-between; margin-bottom: 30px; position: relative; padding: 0 20px; }
.progress-bar::before { content: ''; position: absolute; top: 15px; left: 40px; right: 40px; height: 2px; background: #e0e0e0; z-index: 0; }
.step-indicator { text-align: center; position: relative; z-index: 1; font-size: 0.85rem; color: #999; font-weight: 500; transition: all 0.3s ease; }
.step-indicator span { display: flex; align-items: center; justify-content: center; width: 32px; height: 32px; background: #fff; border: 2px solid #e0e0e0; border-radius: 50%; margin: 0 auto 5px; font-weight: 600; color: #999; transition: all 0.3s ease; }
.step-indicator.active span { background: #1e3c72; border-color: #1e3c72; color: #fff; box-shadow: 0 4px 10px rgba(30, 60, 114, 0.3); }
.step-indicator.active { color: #1e3c72; }

/* CARD & STEP */
.card-container { background: #ffffff; border-radius: 20px; box-shadow: 0 10px 30px rgba(0,0,0,0.05); padding: 40px; min-height: 500px; }
.step-box { display: none; flex-direction: column; align-items: center; text-align: center; animation:fadeIn 0.5s ease-in-out; }
.step-box.active { display: flex; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(15px); } to { opacity: 1; transform: translateY(0); } }

h2 { color: #1a1a1a; margin-bottom: 10px; font-weight: 600; }
.sub-instruction { color: #666; margin-bottom: 20px; font-size: 0.95rem; }

/* UPLOAD ZONE */
.upload-zone { border: 2px dashed #d0d5dd; background: #fafbfc; padding: 50px 30px; border-radius: 16px; width: 100%; max-width: 500px; transition: 0.3s; }
.upload-zone:hover { border-color: #1e3c72; background: #f0f4ff; }
.upload-icon { font-size: 3rem; margin-bottom: 15px; }

/* CANVAS - Cursor ditukar kepada default (panah biasa) */
.canvas-wrapper { width: 100%; max-width: 700px; background: #f4f7f6; padding: 15px; border-radius: 12px; margin-bottom: 20px; display: flex; justify-content: center; }
canvas { border-radius: 8px; background: #fff; max-width: 100%; height: auto; box-shadow: 0 4px 10px rgba(0,0,0,0.05); cursor: default; }
#a4Canvas { cursor: default; } /* Tukar secara dinamik oleh JS nanti */

/* BUTTONS */
.btn { padding: 12px 24px; border: none; border-radius: 8px; font-family: 'Poppins', sans-serif; font-size: 0.95rem; font-weight: 500; cursor: pointer; transition: all 0.2s; color: #fff; display: inline-flex; align-items: center; gap: 8px; justify-content: center; }
.btn:hover { opacity: 0.9; transform: translateY(-2px); box-shadow: 0 4px 10px rgba(0,0,0,0.1); }
.btn:active { transform: translateY(0); }
.btn-primary { background: #1e3c72; }
.btn-light { background: #f0f2f5; color: #333; border: 1px solid #dce0e5; }
.btn-warning { background: #f39c12; }
.btn-success { background: #2ecc71; }
.btn-orange { background: #e67e22; }
.btn-danger { background: #e74c3c; }
.btn-dark { background: #2c3e50; }

/* CONTROLS */
.canvas-controls { display: flex; gap: 10px; margin-bottom: 20px; flex-wrap: wrap; justify-content: center; }
.action-area { display: flex; align-items: center; gap: 20px; margin-top: 10px; }
.status-tag { padding: 8px 16px; border-radius: 20px; font-weight: 500; font-size: 0.9rem; }
.status-tag.pending { background: #ffeeba; color: #856404; }
.status-tag.success { background: #d4edda; color: #155724; }

/* FINAL LAYOUT */
.final-layout { display: flex; gap: 40px; width: 100%; align-items: flex-start; justify-content: center; }
.preview-section { flex: 1; display: flex; flex-direction: column; align-items: center; }
.a4-wrapper { max-width: 300px; border: 1px solid #e0e0e0; } 
.download-buttons { display: flex; gap: 15px; flex-wrap: wrap; justify-content: center; margin-top: 20px; }

.settings-section { width: 320px; background: #fafbfc; padding: 25px; border-radius: 12px; border: 1px solid #e0e0e0; text-align: left; }
.settings-section h3 { color: #1a1a1a; margin: 0 0 15px 0; font-size: 1.1rem; }
.transform-controls { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-bottom: 10px; }

.radio-group { display: flex; gap: 10px; }
.radio-card { flex: 1; padding: 12px; border: 2px solid #e0e0e0; border-radius: 8px; text-align: center; cursor: pointer; font-size: 0.9rem; transition: 0.2s; }
.radio-card input { display: none; }
.radio-card:has(input:checked) { border-color: #1e3c72; background: #f0f4ff; color: #1e3c72; font-weight: 600; }

.divider { border: none; border-top: 1px solid #e0e0e0; margin: 25px 0; }
.slider-group { margin-bottom: 20px; }
.slider-group label { display: block; font-size: 0.9rem; margin-bottom: 8px; color: #555; font-weight: 500; }
.slider-group span { float: right; color: #1e3c72; font-weight: 600; }
.slider-group input[type="range"] { width: 100%; -webkit-appearance: none; height: 6px; background: #e0e0e0; border-radius: 3px; outline: none; }
.slider-group input[type="range"]::-webkit-slider-thumb { -webkit-appearance: none; width: 18px; height: 18px; background: #1e3c72; border-radius: 50%; cursor: pointer; }

.footer { text-align: center; margin-top: 40px; color: #888; font-size: 0.85rem; line-height: 1.6; padding: 0 20px; }

@media (max-width: 768px) {
    .final-layout { flex-direction: column-reverse; align-items: center; }
    .settings-section { width: 100%; max-width: 400px; }
}