:root {
    --warna-latar: #f1f5f9;
    --warna-teks: #1e293b;
    --warna-aksen: #4f46e5;
    --kaca-bg: rgba(255, 255, 255, 0.85);
    --kaca-border: rgba(255, 255, 255, 0.5);
}

[data-theme="dark"] {
    --warna-latar: #0f172a;
    --warna-teks: #f8fafc;
    --warna-aksen: #818cf8;
    --kaca-bg: rgba(30, 41, 59, 0.85);
    --kaca-border: rgba(255, 255, 255, 0.1);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

/* Body bebas scroll untuk SEMUA perangkat */
body {
    background: var(--warna-latar);
    color: var(--warna-teks);
    transition: 0.3s;
    min-height: 100vh;
    overflow-x: hidden;
}

.bg-blur {
    position: fixed;
    top: -10%;
    right: -10%;
    width: 50vw;
    height: 50vw;
    background: radial-gradient(circle, var(--warna-aksen) 0%, transparent 70%);
    opacity: 0.1;
    filter: blur(100px);
    z-index: -1;
}

.container {
    display: flex;
    flex-direction: column;
    width: 100%;
    max-width: 1400px;
    min-height: 100vh;
    margin: 0 auto;
    padding: 15px;
    gap: 20px;
}

/* Sidebar & Steps (Default untuk HP/Tablet) */
.sidebar {
    width: 100%;
    background: var(--kaca-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--kaca-border);
    border-radius: 24px;
    padding: 25px;
    display: flex;
    flex-direction: column;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.05);
}

[data-theme="dark"] .sidebar {
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
}

.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.header h1 {
    font-size: 1.4rem;
    font-weight: 800;
}

.subtitle {
    font-size: 0.8rem;
    opacity: 0.6;
    margin-top: 2px;
}

.btn-icon {
    background: rgba(0, 0, 0, 0.05);
    border: none;
    color: inherit;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 1.1rem;
    transition: 0.2s;
}

[data-theme="dark"] .btn-icon {
    background: rgba(255, 255, 255, 0.1);
}

.btn-icon:hover {
    transform: scale(1.1);
}

.steps-container {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.step-box {
    background: rgba(255, 255, 255, 0.3);
    border: 1px solid var(--kaca-border);
    border-radius: 18px;
    padding: 18px;
}

[data-theme="dark"] .step-box {
    background: rgba(0, 0, 0, 0.2);
}

.step-header {
    display: flex;
    align-items: center;
    margin-bottom: 12px;
}

.step-header h2 {
    font-size: 1.05rem;
    font-weight: 700;
    display: flex;
    gap: 8px;
    align-items: center;
}

.price-badge {
    background: rgba(79, 70, 229, 0.1);
    color: var(--warna-aksen);
    padding: 15px;
    border-radius: 12px;
    text-align: center;
    margin-bottom: 15px;
    border: 1px dashed var(--warna-aksen);
    line-height: 1.4;
}

[data-theme="dark"] .price-badge {
    background: rgba(255, 255, 255, 0.05);
}

#totalPrice {
    font-weight: 800;
    font-size: 1.4rem;
}

#zipInfo {
    font-size: 0.8rem;
    opacity: 0.8;
    font-weight: 600;
}

.mini-guide {
    margin-left: 18px;
    font-size: 0.8rem;
    opacity: 0.85;
    line-height: 1.6;
}

/* Buttons Controls */
.button-group {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.btn-utama,
.btn-kedua,
.btn-pdf {
    width: 100%;
    padding: 14px;
    border-radius: 12px;
    border: none;
    font-weight: 700;
    cursor: pointer;
    transition: 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-size: 0.9rem;
}

.btn-utama {
    background: var(--warna-aksen);
    color: white;
}

.btn-utama:hover {
    filter: brightness(1.1);
}

.btn-kedua {
    background: #64748b;
    color: white;
}

.btn-kedua:hover {
    background: #475569;
}

.btn-pdf {
    background: #e11d48;
    color: white;
    margin-top: 5px;
}

.btn-pdf:hover {
    background: #be123c;
}

/* Preview Area & Multi-Kertas */
.preview-area {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 10px 5px;
    gap: 40px;
    width: 100%;
}

.kertas-wrapper {
    width: 100%;
    max-width: 800px;
    display: flex;
    flex-direction: column;
    align-items: center;
    transition: 0.4s ease;
    opacity: 0.5;
    filter: grayscale(80%);
}

.kertas-wrapper.active-page {
    opacity: 1;
    filter: none;
}

.kertas-header {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: 12px;
    opacity: 0;
    pointer-events: none;
    transition: 0.3s;
}

.kertas-wrapper.active-page .kertas-header {
    opacity: 1;
    pointer-events: auto;
}

.color-controls {
    display: flex;
    gap: 8px;
    align-items: center;
    background: var(--kaca-bg);
    backdrop-filter: blur(10px);
    padding: 8px 12px;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    border: 1px solid var(--kaca-border);
}

.pilih-bingkai {
    border: 1px solid #ccc;
    border-radius: 8px;
    padding: 6px;
    font-weight: bold;
    background: white;
    color: #333;
    cursor: pointer;
    outline: none;
    font-size: 0.8rem;
}

.opsi-warna {
    display: flex;
    gap: 6px;
}

.opsi-warna input[type="color"] {
    width: 30px;
    height: 30px;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    background: none;
}

.btn-rotate {
    background: #f1f5f9;
    border: 1px solid #cbd5e1;
    border-radius: 6px;
    width: 30px;
    height: 30px;
    cursor: pointer;
    color: #475569;
}

.btn-hapus-kertas {
    background: #fee2e2;
    color: #ef4444;
    border: 1px solid #f87171;
    padding: 8px 12px;
    border-radius: 10px;
    font-weight: bold;
    font-size: 0.8rem;
    cursor: pointer;
    box-shadow: 0 4px 10px rgba(239, 68, 68, 0.15);
    display: none;
    transition: 0.2s;
}

.btn-hapus-kertas:hover {
    filter: brightness(0.9);
}

.kertas-footer {
    width: 100%;
    margin-top: 15px;
    opacity: 0;
    pointer-events: none;
    transition: 0.3s;
}

.kertas-wrapper.active-page .kertas-footer {
    opacity: 1;
    pointer-events: auto;
}

.btn-tambah {
    width: 100%;
    background: rgba(79, 70, 229, 0.1);
    color: var(--warna-aksen);
    border: 2px dashed var(--warna-aksen);
    padding: 12px;
    border-radius: 12px;
    font-weight: bold;
    font-size: 0.95rem;
    cursor: pointer;
    transition: 0.2s;
}

.btn-tambah:hover {
    background: var(--warna-aksen);
    color: white;
}

/* Kertas A4 & Polaroid 2R Strict Constraint */
.kertas-a4 {
    width: 100%;
    aspect-ratio: 210/297;
    background: white;
    position: relative;
    cursor: pointer;
    transition: 0.3s;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    align-content: space-evenly;
    gap: 3%;
    padding: 4%;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    border: 4px solid transparent;
    border-radius: 2px;
}

.kertas-wrapper.active-page .kertas-a4 {
    border-color: var(--warna-aksen);
    box-shadow: 0 0 0 4px rgba(79, 70, 229, 0.2), 0 25px 50px rgba(0, 0, 0, 0.25);
    transform: scale(1.02);
}

.kotak-polaroid {
    aspect-ratio: 2 / 3;
    width: 100%;
    height: auto;
    background: white;
    padding: 6% 6% 22% 6%;
    border: 1px solid rgba(0, 0, 0, 0.15);
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;
    transition: 0.2s;
}

.kotak-polaroid:hover {
    transform: translateY(-2px) scale(1.01);
    z-index: 5;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.15);
}

.kotak-polaroid.mode-konfig {
    outline: 3px dashed var(--warna-aksen);
    outline-offset: -3px;
    z-index: 10;
}

/* Menu Konfigurasi Foto (Gear & Trash) */
.konfig-menu {
    position: absolute;
    top: 6%;
    right: 6%;
    display: flex;
    gap: 6px;
    z-index: 20;
}

.btn-konf {
    width: 26px;
    height: 26px;
    font-size: 0.8rem;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.95);
    border: 1px solid #cbd5e1;
    cursor: pointer;
    display: none;
    align-items: center;
    justify-content: center;
    color: #333;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
    transition: 0.2s;
}

.btn-konf:hover {
    transform: scale(1.1);
}

.btn-konf.aktif {
    background: var(--warna-aksen);
    color: white;
    border-color: var(--warna-aksen);
}

.btn-hapus-foto {
    background: #fee2e2;
    color: #ef4444;
    border-color: #fca5a5;
}

.btn-hapus-foto:hover {
    background: #ef4444;
    color: white;
    border-color: #ef4444;
}

.area-foto {
    flex: 1;
    width: 100%;
    height: 100%;
    background: #f1f5f9;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
    position: relative;
    cursor: pointer;
}

.area-foto img {
    max-width: 100%;
    max-height: 100%;
    width: auto;
    height: auto;
    display: none;
    transform-origin: center center;
    will-change: transform;
    user-select: none;
    -webkit-user-drag: none;
}

.teks-tambah {
    color: #94a3b8;
    font-size: 0.75rem;
    text-align: center;
    pointer-events: none;
}

.teks-tambah i {
    font-size: 1.3rem;
    margin-bottom: 5px;
    color: #cbd5e1;
}

/* ================================================= */
/* LAYOUT DESKTOP: TEKNIK STICKY SIDEBAR (DI BAWAH)  */
/* ================================================= */
@media (min-width: 900px) {
    .container {
        flex-direction: row;
        padding: 25px;
        align-items: flex-start;
    }

    /* Panel kiri dikunci ukurannya dan menempel */
    .sidebar {
        width: 350px !important;
        flex-shrink: 0;
        position: sticky;
        top: 25px;
        max-height: calc(100vh - 50px);
        overflow-y: auto;
    }

    /* Area kertas didorong agar bebas bernapas di kanan */
    .preview-area {
        flex: 1;
        padding: 0 40px !important;
        overflow: visible;
    }
}

/* ================================================= */
/* SOCIAL MEDIA FOOTER (KONTAK)                      */
/* ================================================= */
.social-footer {
    margin-top: auto;
    /* Mendorong footer ke bagian paling bawah panel */
    padding-top: 25px;
    margin-bottom: 10px;
    text-align: center;
    border-top: 1px dashed var(--kaca-border);
}

.social-footer p {
    font-size: 0.85rem;
    font-weight: 700;
    opacity: 0.7;
    margin-bottom: 12px;
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 15px;
}

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 42px;
    height: 42px;
    border-radius: 50%;
    color: white;
    text-decoration: none;
    font-size: 1.3rem;
    transition: 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    /* Efek membal */
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.15);
}

.social-links a:hover {
    transform: translateY(-5px) scale(1.1);
    box-shadow: 0 8px 15px rgba(0, 0, 0, 0.25);
}

/* Warna Khas Brand */
.soc-wa {
    background: #25D366;
}

.soc-ig {
    background: linear-gradient(45deg, #f09433 0%, #e6683c 25%, #dc2743 50%, #cc2366 75%, #bc1888 100%);
}

.soc-web {
    background: #3b82f6;
}

/* ================================================= */
/* METODE PEMBAYARAN BADGES (FINAL)                  */
/* ================================================= */
.payment-section {
    margin-top: 15px;
    padding-top: 12px;
    border-top: 1px dashed var(--kaca-border);
}

.payment-title {
    font-size: 0.8rem;
    font-weight: 700;
    margin-bottom: 8px;
    opacity: 0.8;
}

.payment-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.badge {
    font-size: 0.8rem;
    font-weight: 800;
    padding: 12px 20px;
    border-radius: 8px;
    color: white;
    display: flex;
    align-items: center;
    gap: 5px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

/* Warna Khusus QRIS dan Cash */
.badge.qris {
    background: #ed2a26;
}

.badge.cash {
    background: #e6ae05;
}

/* Hijau Emerald untuk Cash */