/* ==========================================
   CSS RESET & VARIABLES
   ========================================== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    overflow-x: hidden;
    width: 100%;
}

:root {
    /* Fonts */
    --font-heading: 'Plus Jakarta Sans', 'Inter', sans-serif;
    --font-body: 'Inter', sans-serif;

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.5s ease;

    /* Theme: Deep Space Purple (Dark, Modern, Keren Luar Biasa - Default) */
    --bg-main: #0c0422; /* Ungu pekat antariksa */
    --bg-card: rgba(30, 15, 66, 0.75); /* Card warna ungu violet pekat (bukan hitam) */
    --border-color: rgba(192, 132, 252, 0.28); /* Border ungu neon terang */
    --border-hover: rgba(192, 132, 252, 0.48);
    --border-focus: #c084fc; /* Neon Purple */
    
    --text-primary: #f5f0ff; /* Teks putih keunguan */
    --text-secondary: #c3b5e2;
    --text-muted: #8a7ca8;
    
    --accent-pink: #d946ef; /* Neon Magenta */
    --accent-peach: #a78bfa; /* Violet */
    --accent-gradient: linear-gradient(135deg, #a78bfa 0%, #db2777 100%);
    --accent-glow: rgba(192, 132, 252, 0.18);
    --btn-icon-bg: rgba(192, 132, 252, 0.08);

    --card-shadow: 0 15px 45px rgba(6, 2, 20, 0.6);
    --card-shadow-hover: 0 20px 55px rgba(192, 132, 252, 0.15);
    
    --input-bg: rgba(22, 10, 51, 0.65);
    
    /* Semantic Colors */
    --manual-green: #00d28d;
    --manual-green-gradient: linear-gradient(135deg, #00f5a0 0%, #00d28d 100%);
    --manual-green-glow: rgba(0, 210, 141, 0.25);
    --danger: #ff4d6d;
    --warning: #f59e0b;
}

/* Light Theme Override Variables (Bisa di-toggle oleh user) */
body.light-theme {
    --bg-main: #ebdfff; /* Ungu pastel cerah yang sangat kental */
    --bg-card: rgba(240, 224, 255, 0.88); /* Card berwarna ungu lavender muda (bukan putih) */
    --border-color: rgba(124, 58, 237, 0.32); /* Border ungu violet tegas */
    --border-hover: rgba(124, 58, 237, 0.55);
    --border-focus: #7c3aed; /* Ungu Violet Pekat */
    
    --text-primary: #18082c; /* Deep rich violet-black (super kontras dan modern) */
    --text-secondary: #4c3e6d; /* Slate-violet yang rapi */
    --text-muted: #8073a3;
    
    --accent-pink: #7c3aed; /* Violet */
    --accent-peach: #d946ef; /* Magenta */
    --accent-gradient: linear-gradient(135deg, #7c3aed 0%, #d946ef 100%);
    --accent-glow: rgba(124, 58, 237, 0.15);
    --btn-icon-bg: rgba(124, 58, 237, 0.08);

    --card-shadow: 0 10px 30px rgba(124, 58, 237, 0.12);
    --card-shadow-hover: 0 15px 35px rgba(124, 58, 237, 0.2);
    
    --input-bg: rgba(252, 248, 255, 0.95);
}

/* ==========================================
   BASE & BACKGROUND DECORATIONS
   ========================================== */
body {
    font-family: var(--font-body);
    background-color: var(--bg-main);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 0 1rem 2rem 1rem;
    position: relative;
    transition: background-color var(--transition-slow), color var(--transition-slow);
}

/* ==========================================
   ANIMATED WATER BACKGROUND & LIQUID BLOBS
   ========================================== */
.bg-blobs-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    overflow: hidden;
    z-index: -2;
    pointer-events: none;
}

.blob-bg {
    position: absolute;
    width: 600px;
    height: 600px;
    filter: blur(130px);
    z-index: -2;
    opacity: 0.45;
    pointer-events: none;
    transition: all var(--transition-slow);
    /* GPU acceleration untuk blob */
    will-change: transform;
    transform: translateZ(0);
}

.blob-1 {
    top: -150px;
    left: -150px;
    border-radius: 40% 60% 70% 30% / 40% 50% 60% 50%;
    background: radial-gradient(circle, rgba(217,70,239,0.3) 0%, rgba(79,70,229,0.05) 80%);
}

.blob-2 {
    bottom: -150px;
    right: -150px;
    border-radius: 70% 30% 52% 48% / 60% 40% 60% 40%;
    background: radial-gradient(circle, rgba(79,70,229,0.25) 0%, rgba(217,70,239,0.05) 80%);
}

.blob-3 {
    top: 25%;
    left: 30%;
    width: 700px;
    height: 700px;
    border-radius: 50% 50% 30% 70% / 50% 60% 40% 50%;
    background: radial-gradient(circle, rgba(99,102,241,0.08) 0%, rgba(3,0,10,0) 75%);
}

/* ==========================================
   FALLING FLOWERS ANIMATION (LIGHTWEIGHT)
   ========================================== */
.flower-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    overflow: hidden; /* Mencegah kelopak bunga yang jatuh di bawah layar memperpanjang tinggi halaman */
    z-index: -1; /* Di bawah konten, di atas blob */
    pointer-events: none;
    clip-path: none;
}

.petal {
    position: absolute;
    top: 0;
    pointer-events: none !important;
    user-select: none !important;
    animation: flowerFallAndSway 16s infinite linear;
    /* GPU Acceleration */
    will-change: transform, opacity;
    transform: translate3d(0, -50px, 0);
    backface-visibility: hidden;
}

@keyframes flowerFallAndSway {
    0% {
        transform: translate3d(0, -50px, 0) rotate(0deg);
        opacity: 0;
    }
    10% {
        opacity: 0.8;
    }
    25% {
        transform: translate3d(30px, 25vh, 0) rotate(90deg);
    }
    50% {
        transform: translate3d(-30px, 50vh, 0) rotate(180deg);
    }
    75% {
        transform: translate3d(20px, 75vh, 0) rotate(270deg);
    }
    90% {
        opacity: 0.75;
    }
    100% {
        transform: translate3d(0, 105vh, 0) rotate(360deg);
        opacity: 0;
    }
}

/* ==========================================
   HEADER BAR (STICKY TOP)
   ========================================== */
.app-header-bar {
    width: 100%;
    max-width: 1080px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 20px; /* Menyesuaikan sudut kelengkungan kartu utama */
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    padding: 0.85rem 1.75rem;
    display: flex;
    justify-content: center;
    position: sticky;
    top: 1rem;
    margin: 1rem auto 0 auto;
    z-index: 1000;
    box-shadow: 0 10px 30px rgba(15, 9, 38, 0.04);
    transition: all var(--transition-slow);
}

.header-content {
    width: 100%;
    max-width: 1080px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-area {
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.store-logo-icon {
    font-size: 24px !important;
    color: var(--accent-pink);
    transition: color var(--transition-slow);
}

.logo-text h2 {
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 800;
    color: var(--text-primary);
    letter-spacing: -0.01em;
}

.header-status {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    font-size: 0.7rem;
    font-weight: 700;
    color: var(--text-secondary);
    margin-top: -0.1rem;
}

.status-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background-color: var(--manual-green);
    box-shadow: 0 0 6px var(--manual-green);
}

.btn-icon {
    background: var(--btn-icon-bg);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    width: 42px;
    height: 42px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    transition: all var(--transition-fast);
}

.btn-icon span {
    font-size: 20px !important;
    transition: transform var(--transition-fast);
}

.btn-icon:hover {
    color: var(--bg-main); /* Inversi warna: icon menjadi gelap sesuai latar belakang */
    background: var(--text-primary); /* Inversi warna: background menjadi warna teks primer terang/gelap */
    border-color: var(--text-primary);
    transform: translateY(-2px) scale(1.05);
    box-shadow: 0 8px 20px rgba(124, 58, 237, 0.15);
}

.btn-icon:hover span {
    transform: rotate(20deg); /* Animasi rotasi kecil yang interaktif */
}

/* ==========================================
   LAYOUT STRUCTURE (RESPONSIVE)
   ========================================== */
.main-wrapper {
    width: 100%;
    max-width: 1080px;
    position: relative;
    z-index: 10;
    margin-top: 2rem; /* Memberikan jarak yang aman dan estetis di bawah sticky header */
}

.layout-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.75rem;
    align-items: start;
}

@media (min-width: 901px) {
    .layout-grid {
        grid-template-columns: 1.12fr 0.88fr;
        gap: 2.25rem;
    }
    
    .sticky-card {
        position: sticky;
        top: 95px; /* Offset agar sejajar di bawah sticky header */
        z-index: 100;
    }
}

/* Card base */
.card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    padding: 1.75rem;
    box-shadow: var(--card-shadow);
    backdrop-filter: blur(18px); /* Efek kaca tebal di atas air */
    -webkit-backdrop-filter: blur(18px);
    transition: all var(--transition-normal);
}

.card:hover {
    box-shadow: var(--card-shadow-hover);
    border-color: var(--border-hover);
}

/* ==========================================
   LEFT PANEL STYLES
   ========================================== */
.panel-left {
    display: flex;
    flex-direction: column;
    gap: 1.75rem;
    min-width: 0; /* Mencegah kolom grid meregang di luar lebar viewport karena horizontal slider */
}

/* Header Banner */
.payment-header {
    text-align: center;
    padding: 1rem 0;
}

.manual-badge {
    background-color: rgba(0, 242, 254, 0.08);
    border: 1px solid rgba(0, 242, 254, 0.25);
    color: var(--accent-pink);
    font-size: 0.75rem;
    font-weight: 800;
    letter-spacing: 0.05em;
    padding: 0.4rem 0.9rem;
    border-radius: 30px;
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    margin-bottom: 1rem;
    box-shadow: 0 4px 12px rgba(0, 242, 254, 0.1);
}

.badge-icon {
    font-size: 16px !important;
}

.store-headline {
    font-family: var(--font-heading);
    font-size: 2.2rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 0.6rem;
    filter: drop-shadow(0 2px 10px rgba(167, 139, 250, 0.25));
}

.store-subheadline {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.5;
    max-width: 480px;
    margin: 0 auto;
}

/* Invoice Card */
.invoice-card {
    padding: 1.5rem 1.75rem;
}

.invoice-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.6rem;
}

.invoice-label-wrapper {
    display: flex;
    align-items: center;
    gap: 0.35rem;
}

.meta-icon {
    font-size: 18px !important;
}

.text-pink {
    color: var(--accent-pink);
}

.invoice-tag {
    font-size: 0.75rem;
    font-weight: 800;
    color: var(--accent-pink);
    letter-spacing: 0.05em;
}

.invoice-date {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-weight: 500;
}

.invoice-number {
    font-family: var(--font-heading);
    font-size: 1.6rem;
    font-weight: 800;
    letter-spacing: -0.01em;
    color: var(--text-primary);
    margin-bottom: 1.25rem;
}

.invoice-actions {
    display: flex;
    gap: 0.75rem;
}

.btn-sec {
    background: var(--input-bg);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-family: var(--font-body);
    font-size: 0.85rem;
    font-weight: 700;
    padding: 0.6rem 1rem;
    border-radius: 12px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.4rem;
    position: relative;
    transition: all var(--transition-fast);
}

.btn-sec span {
    font-size: 18px !important;
}

.btn-sec:hover {
    background: rgba(0, 242, 254, 0.08);
    border-color: var(--border-focus);
    color: var(--accent-pink);
    transform: translateY(-1px);
    box-shadow: 0 0 10px rgba(0, 242, 254, 0.2);
}

/* Tooltip for copy */
.tooltip {
    position: absolute;
    bottom: calc(100% + 8px);
    left: 50%;
    transform: translateX(-50%) translateY(4px);
    background: #061121;
    color: white;
    font-size: 0.7rem;
    font-weight: 600;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    border: 1px solid var(--border-color);
    opacity: 0;
    pointer-events: none;
    transition: all var(--transition-fast);
    box-shadow: 0 4px 8px rgba(0,0,0,0.3);
    white-space: nowrap;
    z-index: 100;
}

.tooltip::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    border-width: 4px;
    border-style: solid;
    border-color: #061121 transparent transparent transparent;
}

.btn-sec:hover .tooltip,
.btn-sec.copied .tooltip {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

/* Slider Section General */
.slider-section {
    display: flex;
    flex-direction: column;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.35rem;
}

.section-header h3 {
    font-family: var(--font-heading);
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text-primary);
}

.slider-controls {
    display: flex;
    gap: 0.4rem;
}

.btn-arrow {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    width: 32px;
    height: 32px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: all var(--transition-fast);
}

.btn-arrow span {
    font-size: 20px !important;
}

.btn-arrow:hover {
    color: var(--accent-pink);
    border-color: var(--border-focus);
    box-shadow: 0 0 10px rgba(0, 242, 254, 0.25);
}

.slider-hint {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.25rem;
    margin-bottom: 0.85rem;
}

.slider-hint span {
    font-size: 14px !important;
}

/* ==========================================
   METODE PEMBAYARAN SLIDER (CAROUSEL)
   ========================================== */
.slider-container {
    display: flex;
    gap: 1rem;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    padding: 0.5rem 0.15rem 1.25rem 0.15rem;
    scrollbar-width: none;
    -webkit-overflow-scrolling: touch;
    touch-action: pan-y; /* Membantu scroll vertikal layar lancar saat menyentuh slider */
}

.slider-container::-webkit-scrollbar {
    display: none;
}

/* Individual Method Card */
.method-card {
    flex: 0 0 230px;
    scroll-snap-align: start;
    background: var(--bg-card);
    border: 2px solid var(--border-color);
    border-radius: 20px;
    padding: 1.5rem 1.25rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
    cursor: pointer;
    box-shadow: var(--card-shadow);
    transition: all var(--transition-normal);
}

.method-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(0, 242, 254, 0.1);
}

/* Green MANUAL badge on card top right (Pill style like in user screenshot) */
.manual-tag {
    position: absolute;
    top: 12px;
    right: 12px;
    background: rgba(0, 210, 141, 0.08);
    border: 1px solid rgba(0, 210, 141, 0.18);
    color: #00b378;
    font-size: 0.6rem;
    font-weight: 800;
    padding: 0.2rem 0.55rem;
    border-radius: 20px;
    letter-spacing: 0.03em;
    box-shadow: none;
}

.method-card-logo-wrapper {
    width: 60px;
    height: 60px;
    display: flex;
    justify-content: center;
    align-items: center;
    background: #ffffff; /* White background box like in user screenshot */
    border: 1px solid rgba(0, 0, 0, 0.08); /* Clean thin border */
    border-radius: 14px;
    margin-top: 0.5rem;
    margin-bottom: 0.85rem;
    padding: 4px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.02);
    transition: all var(--transition-fast);
}

body.light-theme .method-card-logo-wrapper {
    background: #ffffff;
    border-color: rgba(0, 0, 0, 0.05);
}

.method-card-logo-wrapper img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

.method-card-title {
    font-family: var(--font-heading);
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 0.35rem;
    color: var(--text-primary);
}

.method-card-number {
    font-family: var(--font-heading);
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-secondary);
    letter-spacing: 0.02em;
    margin-bottom: 0.15rem;
}

.method-card-holder {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-weight: 600;
    margin-bottom: 1.1rem;
    text-align: center;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 100%;
}

.btn-card-copy {
    background: var(--input-bg);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    width: 100%;
    padding: 0.5rem;
    font-family: var(--font-body);
    font-size: 0.8rem;
    font-weight: 700;
    border-radius: 10px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.35rem;
    transition: all var(--transition-fast);
}

.btn-card-copy span {
    font-size: 15px !important;
}

.btn-card-copy:hover {
    background: var(--accent-gradient);
    border-color: transparent;
    color: white;
    box-shadow: 0 4px 10px var(--accent-glow);
}

/* Selected Method Card Active State */
.method-card.active {
    border-color: var(--border-focus);
    background-color: rgba(0, 242, 254, 0.05);
    box-shadow: 0 8px 25px rgba(0, 242, 254, 0.18);
}

.method-card.active .method-card-logo-wrapper {
    background-color: rgba(0, 242, 254, 0.1);
}

.method-card.active .btn-card-copy {
    background: var(--accent-gradient);
    border-color: transparent;
    color: white;
    box-shadow: 0 4px 12px var(--accent-glow);
}

/* ==========================================
   PEMBAYARAN QRIS SLIDER (DOUBLE SLIDE)
   ========================================== */
.qris-slider-container {
    display: flex;
    gap: 1.25rem;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    padding: 0.5rem 0.15rem 1.25rem 0.15rem;
    scrollbar-width: none;
    touch-action: pan-y; /* Membantu scroll vertikal layar lancar saat menyentuh slider QRIS */
}

.qris-slider-container::-webkit-scrollbar {
    display: none;
}

.qris-slide-card {
    flex: 0 0 100%;
    scroll-snap-align: center;
    background: var(--bg-card);
    border: 2px solid var(--border-color);
    border-radius: 24px;
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
    box-shadow: var(--card-shadow);
    transition: all var(--transition-normal);
}

@media (min-width: 600px) {
    .qris-slide-card {
        flex: 0 0 calc(50% - 0.625rem);
    }
}

.qris-slide-card.active {
    border-color: var(--border-focus);
    box-shadow: 0 8px 25px rgba(0, 242, 254, 0.15);
}

.qris-card-tag {
    position: absolute;
    top: 14px;
    left: 50%;
    transform: translateX(-50%);
    font-family: var(--font-heading);
    font-size: 0.7rem;
    font-weight: 800;
    padding: 0.25rem 0.9rem;
    border-radius: 30px;
    letter-spacing: 0.05em;
    color: white;
    box-shadow: 0 3px 8px rgba(0, 0, 0, 0.2);
}

.qris-card-tag.design {
    background: var(--accent-gradient);
}

.qris-card-tag.original {
    background-color: #df2027;
}

.qris-img-holder {
    background: white;
    padding: 0.75rem;
    border-radius: 18px;
    box-shadow: 0 6px 20px rgba(0,0,0,0.15);
    margin-top: 1.25rem;
    margin-bottom: 1rem;
    max-width: 200px;
    aspect-ratio: 1/1;
    display: flex;
    align-items: center;
    justify-content: center;
}

.qris-display-img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.qris-card-caption {
    font-size: 0.8rem;
    color: var(--text-secondary);
    text-align: center;
    line-height: 1.4;
    padding: 0 0.5rem;
}

/* Actions below QRIS images */
.qris-download-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
    margin-top: 0.5rem;
}

.btn-qris-action {
    text-decoration: none;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 0.85rem;
    font-weight: 700;
    padding: 0.75rem;
    border-radius: 12px;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.4rem;
    box-shadow: var(--card-shadow);
    transition: all var(--transition-fast);
}

.btn-qris-action span {
    font-size: 18px !important;
}

.btn-qris-action:hover {
    color: var(--accent-pink);
    border-color: var(--border-focus);
    transform: translateY(-1px);
    box-shadow: 0 0 10px rgba(0, 242, 254, 0.15);
}

/* Accordion Card for Guide */
.accordion-card {
    padding: 0;
    overflow: hidden;
}

.accordion-trigger {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: transparent;
    border: none;
    padding: 1.25rem 1.5rem;
    color: var(--text-primary);
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 0.95rem;
    cursor: pointer;
    text-align: left;
    transition: color var(--transition-fast);
}

.trigger-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.trigger-label span {
    font-size: 20px !important;
}

.arrow-icon {
    font-size: 24px !important;
    transition: transform var(--transition-normal);
}

.accordion-card.active .arrow-icon {
    transform: rotate(180deg);
}

.accordion-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-normal);
}

.instructions-list {
    padding: 0 1.5rem 1.5rem 2.25rem;
    font-size: 0.825rem;
    line-height: 1.6;
    color: var(--text-secondary);
}

.instructions-list li {
    margin-bottom: 0.5rem;
}

/* ==========================================
   RIGHT PANEL STYLES (FORM CARD)
   ========================================== */
.panel-right {
    display: flex;
    flex-direction: column;
    gap: 1.75rem;
    min-width: 0; /* Mencegah overflow pada grid item */
}

.form-header {
    margin-bottom: 1.5rem;
}

.form-header h3 {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
}

#pay-form {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.form-input-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-input-group label {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 0.35rem;
}

.label-icon {
    font-size: 18px !important;
    color: var(--text-muted);
}

.form-input-group input,
.form-input-group select,
.form-input-group textarea {
    width: 100%;
    padding: 0.85rem 1rem;
    background-color: var(--input-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 0.9rem;
    font-weight: 600;
    outline: none;
    transition: all var(--transition-fast);
}

.form-input-group input:focus,
.form-input-group select:focus,
.form-input-group textarea:focus {
    border-color: var(--border-focus);
    background-color: rgba(6, 17, 33, 0.4);
    box-shadow: 0 0 12px var(--accent-glow);
}

body.light-theme .form-input-group input:focus,
body.light-theme .form-input-group select:focus,
body.light-theme .form-input-group textarea:focus {
    background-color: #ffffff;
}

/* Nominal input wrapper */
.nominal-input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.currency-label {
    position: absolute;
    left: 1rem;
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.1rem;
    color: var(--accent-pink);
}

.nominal-input-wrapper input {
    padding-left: 2.75rem;
    font-family: var(--font-heading);
    font-size: 1.2rem;
    font-weight: 800;
    letter-spacing: 0.02em;
    color: var(--accent-pink);
}

/* Quick Nominal chips */
.quick-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin-top: -0.25rem;
    margin-bottom: 0.25rem;
}

.chip-nominal {
    background: var(--input-bg);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-family: var(--font-body);
    font-size: 0.75rem;
    font-weight: 700;
    padding: 0.45rem 0.8rem;
    border-radius: 30px;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.chip-nominal:hover {
    background: var(--accent-gradient);
    border-color: transparent;
    color: white;
    transform: translateY(-1px);
    box-shadow: 0 4px 8px var(--accent-glow);
}

/* Select wrapper and arrow styling */
.select-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.select-wrapper select {
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    padding-right: 2.5rem;
    cursor: pointer;
}

.select-arrow {
    position: absolute;
    right: 1rem;
    color: var(--text-muted);
    font-size: 20px !important;
    pointer-events: none;
}

.form-input-group textarea {
    resize: none;
}

/* WhatsApp Submit Button */
.btn-submit-wa {
    width: 100%;
    background: linear-gradient(135deg, #12d182 0%, #06b66e 100%);
    color: white;
    border: none;
    padding: 1rem 1.75rem;
    font-family: var(--font-heading);
    font-size: 1.05rem;
    font-weight: 700;
    letter-spacing: 0.02em;
    border-radius: 14px;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.65rem;
    box-shadow: 0 8px 20px -6px rgba(18, 209, 130, 0.5), 0 4px 12px -2px rgba(6, 182, 110, 0.2);
    transition: all var(--transition-normal);
}

.btn-submit-wa:hover {
    transform: translateY(-2px) scale(1.015);
    box-shadow: 0 12px 28px -4px rgba(18, 209, 130, 0.6), 0 6px 16px -2px rgba(6, 182, 110, 0.3);
}

.btn-submit-wa:active {
    transform: translateY(1px) scale(0.985);
    box-shadow: 0 6px 16px -4px rgba(18, 209, 130, 0.4);
}

.wa-svg {
    width: 20px;
    height: 20px;
}

.form-footer-note {
    font-size: 0.75rem;
    line-height: 1.4;
    color: var(--text-muted);
    text-align: center;
    margin-top: 1rem;
}

/* ==========================================
   FAQ SECTION
   ========================================== */
.faq-card {
    background-color: var(--bg-card);
    margin-top: 1.75rem;
}

.faq-header {
    margin-bottom: 1rem;
}

.faq-header h3 {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-primary);
}

.faq-list {
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
}

.faq-box {
    border: 1px solid var(--border-color);
    border-radius: 14px;
    background-color: var(--input-bg);
    overflow: hidden;
}

.faq-btn {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: transparent;
    border: none;
    padding: 0.85rem 1.1rem;
    color: var(--text-primary);
    font-family: var(--font-body);
    font-weight: 700;
    font-size: 0.8rem;
    cursor: pointer;
    text-align: left;
    transition: color var(--transition-fast);
}

.faq-btn:hover {
    color: var(--accent-pink);
}

.faq-btn .arrow-icon {
    font-size: 20px !important;
}

.faq-box.active .arrow-icon {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-normal);
}

.faq-answer p {
    padding: 0 1.1rem 0.95rem 1.1rem;
    font-size: 0.775rem;
    line-height: 1.5;
    color: var(--text-secondary);
}

/* ==========================================
   TOAST NOTIFICATION
   ========================================== */
.toast {
    position: fixed;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background: #0c1c34;
    border: 1px solid var(--border-color);
    box-shadow: 0 10px 30px rgba(0, 242, 254, 0.2);
    border-radius: 30px;
    padding: 0.75rem 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: white;
    z-index: 9999;
    opacity: 0;
    pointer-events: none;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

body.light-theme .toast {
    background: #ffffff;
    color: var(--text-primary);
    box-shadow: 0 10px 30px rgba(99, 102, 241, 0.12);
}

.toast.show {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}

.toast-icon {
    color: #00d28d;
    font-size: 20px !important;
}

.toast-text {
    font-size: 0.85rem;
    font-weight: 700;
}

/* ==========================================
   FOOTER
   ========================================== */
.app-footer {
    text-align: center;
    padding: 2rem 0 1.5rem;
    color: var(--text-muted);
    font-size: 0.8rem;
    font-weight: 500;
}

.app-footer strong {
    color: var(--text-secondary);
}

/* UTILITY */
.hide {
    display: none !important;
}

/* ==========================================
   IMAGE LIGHTBOX MODAL PREVIEW
   ========================================== */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(6, 17, 33, 0.85);
    z-index: 2000;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    backdrop-filter: blur(12px);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-normal);
}

.modal.show {
    opacity: 1;
    pointer-events: auto;
}

.modal-content {
    max-width: 90%;
    max-height: 75%;
    border-radius: 20px;
    box-shadow: 0 20px 50px rgba(0,0,0,0.5);
    transform: scale(0.9);
    transition: transform var(--transition-normal);
}

.modal.show .modal-content {
    transform: scale(1);
}

.close-modal {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    color: #ffffff;
    font-size: 26px !important;
    cursor: pointer;
    background: rgba(15, 9, 38, 0.75); /* Sleek dark glassmorphism */
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    width: 46px;
    height: 46px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all var(--transition-fast);
    z-index: 2100;
}

.close-modal:hover {
    transform: scale(1.1) rotate(90deg);
    background-color: var(--accent-pink);
    border-color: var(--accent-pink);
}

#modal-caption {
    margin-top: 1.25rem;
    color: #e6f6ff;
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.05rem;
    letter-spacing: 0.02em;
    text-shadow: 0 2px 4px rgba(0,0,0,0.3);
}

/* ==========================================
   RESPONSIVENESS & MOBILE LAYOUT COMFORT
   ========================================== */
@media (max-width: 900px) {
    body {
        padding: 0 0 5rem 0; /* Padding bawah lebih besar agar konten tidak terpotong di HP */
        height: auto;
        min-height: 100vh;
        width: 100%;
    }
    
    .main-wrapper {
        padding: 0.75rem 0.5rem; /* Kurangi padding samping agar card lebih lebar di HP */
        width: 100%;
        max-width: 100%;
        overflow: visible;
        margin-top: 1rem;
    }
    
    .layout-grid {
        grid-template-columns: 1fr;
        gap: 1.25rem; /* Rapatkan jarak antar bagian */
        width: 100%;
        max-width: 100%;
        overflow: visible;
    }

    .panel-left, .panel-right {
        width: 100%;
        max-width: 100%;
        gap: 1.25rem; /* Rapatkan gap panel kiri agar scroll lebih sedikit */
    }
    
    .btn-icon {
        width: 38px;
        height: 38px;
    }

    .app-header-bar {
        border-radius: 0;
        border-top: none;
        border-left: none;
        border-right: none;
        border-bottom: 1px solid var(--border-color);
        margin: 0;
        width: 100%;
        top: 0;
        padding: 0.75rem 1.25rem;
    }
}

@media (max-width: 480px) {
    .app-header-bar {
        padding: 0.6rem 1rem;
    }

    .store-logo-icon {
        font-size: 20px !important;
    }

    .logo-text h2 {
        font-size: 0.9rem;
    }

    .payment-header {
        padding: 0.5rem 0;
    }

    .store-headline {
        font-size: 1.65rem; /* Sesuaikan ukuran judul agar pas satu baris */
        margin-bottom: 0.4rem;
    }

    .store-subheadline {
        font-size: 0.82rem; /* Sesuaikan ukuran subjudul */
        line-height: 1.4;
    }

    .card {
        padding: 1.15rem; /* Kurangi padding kartu agar input mendapatkan lebih banyak ruang */
        border-radius: 18px;
    }
    
    .form-input-group input,
    .form-input-group select,
    .form-input-group textarea {
        padding: 0.75rem 0.85rem;
        font-size: 0.85rem; /* Cegah teks terpotong */
    }
    
    .nominal-input-wrapper input {
        padding-left: 2.5rem;
        font-size: 1.1rem;
    }
    
    .currency-label {
        font-size: 1rem;
    }
    
    .invoice-number {
        font-size: 1.35rem;
    }

    .qris-download-actions {
        grid-template-columns: 1fr; /* Tumpuk tombol download secara vertikal */
        gap: 0.5rem;
    }

    .btn-qris-action {
        padding: 0.65rem;
        font-size: 0.8rem;
    }
}

/* ==========================================
   FILE UPLOAD AREA STYLING
   ========================================== */
.file-upload-wrapper {
    position: relative;
    width: 100%;
}

.file-upload-input {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    cursor: pointer;
    z-index: 5;
}

.file-upload-trigger {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 1.5rem 1rem;
    border: 2px dashed var(--border-color);
    border-radius: 12px;
    background: var(--input-bg);
    color: var(--text-secondary);
    transition: all var(--transition-fast);
    text-align: center;
}

.file-upload-wrapper:hover .file-upload-trigger {
    border-color: var(--border-focus);
    color: var(--accent-pink);
    background: rgba(0, 242, 254, 0.02);
}

.upload-icon {
    font-size: 32px !important;
    color: var(--text-muted);
    transition: color var(--transition-fast);
}

.file-upload-wrapper:hover .upload-icon {
    color: var(--accent-pink);
}

.upload-text {
    font-size: 0.775rem;
    font-weight: 700;
}

/* Preview Container */
.file-preview-container {
    position: relative;
    width: 100%;
    margin-top: 0.5rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    overflow: hidden;
    aspect-ratio: 16 / 9;
    background: #000000;
}

.file-preview-container img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.btn-remove-file {
    position: absolute;
    top: 0.5rem;
    right: 0.5rem;
    background: rgba(0, 0, 0, 0.6);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: white;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    z-index: 10;
    transition: all var(--transition-fast);
}

.btn-remove-file:hover {
    background: var(--danger);
    border-color: transparent;
    transform: scale(1.1);
}

/* ==========================================
   MOBILE PERFORMANCE OPTIMIZATION
   ========================================== */
@media (max-width: 768px) {
    /* Optimasi blob latar belakang di HP */
    .blob-bg {
        filter: blur(80px); /* Kurangi blur dari 130px ke 80px */
        opacity: 0.28; /* Kurangi opacity */
    }

    /* Perlambat jatuhnya kelopak di HP agar sangat hemat daya */
    .petal {
        animation: flowerFallAndSway 20s infinite linear;
    }

    /* Kurangi backdrop-filter yang berat */
    .app-header-bar {
        backdrop-filter: blur(8px);
        -webkit-backdrop-filter: blur(8px);
    }

    .card {
        backdrop-filter: none; /* Hapus glassmorphism blur di HP */
        -webkit-backdrop-filter: none;
    }

    /* Percepat/hilangkan transisi tidak perlu */
    * {
        transition-duration: 0.15s !important;
    }
}

/* Untuk HP yang sangat lemah (prefers-reduced-motion) */
@media (prefers-reduced-motion: reduce) {
    .blob-bg,
    .petal {
        animation: none !important;
    }
    .blob-bg { opacity: 0.2; }
}

/* ==========================================
   FLOATING WHATSAPP BUTTON (SUPPORT CONTACT)
   ========================================== */
.floating-wa-btn {
    position: fixed;
    bottom: 24px;
    right: 24px;
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, #25d366 0%, #128c7e 100%);
    color: white;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 8px 24px -4px rgba(37, 211, 102, 0.4), 0 4px 12px -2px rgba(18, 140, 126, 0.2);
    z-index: 999;
    cursor: pointer;
    transition: all var(--transition-normal);
    animation: waPulseAndFloat 3s infinite ease-in-out;
}

.floating-wa-btn:hover {
    transform: scale(1.1) translateY(-3px) !important;
    box-shadow: 0 12px 28px -2px rgba(37, 211, 102, 0.55);
    animation: none; /* Nonaktifkan animasi mengapung saat hover agar transform manual lebih presisi */
}

.wa-float-svg {
    width: 28px;
    height: 28px;
    filter: drop-shadow(0 1px 2px rgba(0,0,0,0.15));
}

@keyframes waPulseAndFloat {
    0% {
        transform: translateY(0) scale(1);
        box-shadow: 0 8px 24px -4px rgba(37, 211, 102, 0.4), 0 0 0 0 rgba(37, 211, 102, 0.5);
    }
    50% {
        transform: translateY(-6px) scale(1);
        box-shadow: 0 12px 28px -4px rgba(37, 211, 102, 0.45), 0 0 0 8px rgba(37, 211, 102, 0);
    }
    100% {
        transform: translateY(0) scale(1);
        box-shadow: 0 8px 24px -4px rgba(37, 211, 102, 0.4), 0 0 0 0 rgba(37, 211, 102, 0);
    }
}

@media (max-width: 480px) {
    .floating-wa-btn {
        bottom: 20px;
        right: 20px;
        width: 50px;
        height: 50px;
    }
    
    .wa-float-svg {
        width: 24px;
        height: 24px;
    }

    .close-modal {
        top: 12px;
        right: 12px;
        width: 36px;
        height: 36px;
        font-size: 20px !important;
    }
}