/* ==========================================================================
   GEPCO Bill Online - Authentic Light Utility Portal CSS
   ========================================================================== */

:root {
    /* Authentic GEPCO Color Palette */
    --gepco-green: #006837;
    --gepco-green-dark: #004d28;
    --gepco-green-light: #e6f4ed;
    --gepco-yellow: #f59e0b;
    --gepco-yellow-bright: #fbbf24;
    --gepco-yellow-bg: #fffbeb;
    
    --text-dark: #1f2937;
    --text-muted: #374151;
    --bg-light: #f8fafc;
    --bg-white: #ffffff;
    --border-color: #e2e8f0;
    
    --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 10px 25px rgba(0, 104, 55, 0.12);
    
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-body);
    color: var(--text-dark);
    background-color: var(--bg-white);
    line-height: 1.7;
    overflow-x: hidden;
}

a {
    color: var(--gepco-green);
    text-decoration: none;
}
a:hover { color: var(--gepco-green-dark); }

ul { list-style: none; }
img { max-width: 100%; height: auto; }

code {
    background: #fef08a;
    color: #854d0e;
    padding: 0.15rem 0.45rem;
    border-radius: 4px;
    font-family: monospace;
    font-weight: 700;
}

.container {
    width: 100%;
    max-width: 1140px;
    margin: 0 auto;
    padding: 0 1.25rem;
}

.section { padding: 4rem 0; }
.bg-light { background-color: var(--bg-light); }
.text-center { text-align: center; }
.text-green { color: var(--gepco-green) !important; }
.text-yellow { color: var(--gepco-yellow-bright) !important; }
.font-weight-bold { font-weight: 700; }
.small { font-size: 0.85rem; }

.mt-1 { margin-top: 0.25rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-3 { margin-top: 1rem; }
.mt-4 { margin-top: 1.5rem; }
.mb-3 { margin-bottom: 1rem; }
.col-span-2 { grid-column: span 2; }

.grid { display: grid; gap: 1.75rem; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.align-center { align-items: center; }

@media (max-width: 992px) {
    .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
    .col-span-2 { grid-column: span 1; }
}

/* --- Header & Top Strip --- */
.gepco-header {
    background: var(--bg-white);
    border-bottom: 2px solid var(--gepco-green);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.top-green-strip {
    background: var(--gepco-green);
    color: #ffffff;
    font-size: 0.85rem;
    padding: 0.45rem 0;
}

.top-strip-flex {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header-main {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.85rem 1.25rem;
}

.gepco-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.brand-logo-circle {
    width: 48px;
    height: 48px;
    background: #ffffff;
    border: 2px solid var(--gepco-green);
    border-radius: 50%;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 10px rgba(0, 104, 55, 0.25);
    flex-shrink: 0;
}

.brand-logo-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.brand-name { display: flex; flex-direction: column; }
.main-title { font-family: var(--font-heading); font-size: 1.4rem; font-weight: 800; color: var(--gepco-green); line-height: 1; }
.sub-title { font-size: 0.72rem; color: var(--text-muted); font-weight: 600; }

.main-nav { display: flex; gap: 1.25rem; }
.nav-item {
    color: var(--text-dark);
    font-weight: 600;
    font-size: 0.92rem;
    padding: 0.5rem 0;
    border-bottom: 2px solid transparent;
}

.nav-item:hover, .nav-item.active {
    color: var(--gepco-green);
    border-bottom-color: var(--gepco-green);
}

.mobile-toggle {
    display: none;
    background: transparent;
    border: none;
    font-size: 1.5rem;
    color: var(--gepco-green);
    cursor: pointer;
}

/* --- Hero Search Section --- */
.tool-hero-section {
    background: linear-gradient(180deg, #e6f4ed 0%, #ffffff 100%);
    padding: 3rem 0;
    border-bottom: 1px solid var(--border-color);
}

.tool-card-box {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    padding: 2.25rem;
    box-shadow: var(--shadow-lg);
    border: 2px solid var(--gepco-green);
    max-width: 800px;
    margin: 0 auto;
}

.official-badge {
    display: inline-block;
    padding: 0.3rem 0.85rem;
    background: var(--gepco-green-light);
    color: var(--gepco-green);
    font-size: 0.82rem;
    font-weight: 700;
    border-radius: 50px;
    margin-bottom: 0.5rem;
}

.tool-header h2 {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--gepco-green-dark);
}

.tool-header p { font-size: 0.95rem; color: var(--text-muted); margin-bottom: 1.25rem; }

.tool-tabs {
    display: flex;
    gap: 0.5rem;
    background: #f1f5f9;
    padding: 0.35rem;
    border-radius: var(--radius-md);
    margin-bottom: 1.25rem;
}

.tab-btn {
    flex: 1;
    padding: 0.65rem 1rem;
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-family: var(--font-body);
    font-size: 0.9rem;
    font-weight: 700;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all 0.2s ease;
}

.tab-btn.active {
    background: var(--gepco-green);
    color: #ffffff;
    box-shadow: 0 2px 6px rgba(0, 104, 55, 0.25);
}

.input-row { display: flex; gap: 0.75rem; }
.field-wrap { position: relative; flex: 1; }
.field-icon { position: absolute; left: 1rem; top: 50%; transform: translateY(-50%); color: var(--gepco-green); font-size: 1.2rem; }

.tool-input {
    width: 100%;
    padding: 0.9rem 4.5rem 0.9rem 2.8rem;
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 600;
    border: 2px solid var(--gepco-green);
    border-radius: var(--radius-md);
    background: var(--bg-white);
    color: var(--text-dark);
}

.tool-input:focus {
    outline: none;
    border-color: var(--gepco-green-dark);
    box-shadow: 0 0 0 4px rgba(0, 104, 55, 0.15);
}

.digit-count {
    position: absolute;
    right: 0.85rem;
    top: 50%;
    transform: translateY(-50%);
    font-size: 0.78rem;
    font-weight: 700;
    color: var(--text-muted);
    background: #f1f5f9;
    padding: 0.15rem 0.45rem;
    border-radius: 4px;
}

.btn-check-submit {
    padding: 0.9rem 1.75rem;
    background: var(--gepco-green);
    color: #ffffff;
    border: none;
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 800;
    border-radius: var(--radius-md);
    cursor: pointer;
    white-space: nowrap;
    transition: all 0.2s ease;
    box-shadow: 0 4px 12px rgba(0, 104, 55, 0.3);
}

.btn-check-submit:hover {
    background: var(--gepco-green-dark);
    box-shadow: 0 6px 16px rgba(0, 104, 55, 0.4);
}

.demo-link-btn {
    background: #fef9c3;
    border: 1px solid #fde047;
    color: #854d0e;
    padding: 0.4rem 1rem;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 700;
    cursor: pointer;
}
.demo-link-btn:hover { background: #fef08a; }

/* Bill Diagram Box */
.bill-diagram-box {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    padding: 1.75rem;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    max-width: 800px;
    margin: 1.5rem auto 0;
}

.diagram-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; align-items: center; }
.bill-graphic-sample { background: #fefce8; border: 2px dashed var(--gepco-yellow); border-radius: var(--radius-md); padding: 1.25rem; }
.mock-bill-header { display: flex; justify-content: space-between; font-weight: 800; margin-bottom: 0.75rem; font-size: 0.9rem; }
.mock-bill-ref-area { background: #dcfce7; border: 2px solid var(--gepco-green); padding: 0.6rem; border-radius: var(--radius-sm); text-align: center; position: relative; }
.mock-bill-ref-area .label { display: block; font-size: 0.7rem; font-weight: 800; color: var(--gepco-green-dark); }
.mock-bill-ref-area .val { font-family: monospace; font-size: 1.05rem; color: var(--gepco-green-dark); }
.pointer-arrow { position: absolute; bottom: -24px; left: 50%; transform: translateX(-50%); background: var(--gepco-green); color: #fff; font-size: 0.7rem; padding: 0.15rem 0.5rem; border-radius: 3px; font-weight: 700; }
.mock-bill-details { margin-top: 1.75rem; font-size: 0.82rem; }
.diagram-info h3 { font-family: var(--font-heading); font-size: 1.2rem; font-weight: 800; color: var(--gepco-green); margin-bottom: 0.5rem; }
.diagram-info p { font-size: 0.92rem; color: var(--text-muted); }

/* --- FEATURED BANNER IMAGE (Gepco Bill.webp) --- */
.section-featured-banner {
    padding: 2.5rem 0 1rem;
}

.featured-banner-card {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    border: 3px solid var(--gepco-green);
}

.featured-img {
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
}

/* --- MAIN ARTICLE SECTION --- */
.article-box {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    padding: 2.5rem;
    border: 1px solid var(--border-color);
}

.main-h1-title {
    font-family: var(--font-heading);
    font-size: 2.25rem;
    font-weight: 800;
    color: var(--gepco-green-dark);
    margin-bottom: 1.25rem;
    line-height: 1.3;
}

.lead-text { font-size: 1.05rem; line-height: 1.8; color: var(--text-dark); }

.section-title-box { margin-bottom: 2.5rem; }
.section-title-box h2 { font-family: var(--font-heading); font-size: 1.9rem; font-weight: 800; color: var(--gepco-green-dark); }
.section-subtext { font-size: 1rem; color: var(--text-muted); max-width: 800px; margin: 0.5rem auto 0; }
.title-underline { width: 60px; height: 4px; background: var(--gepco-yellow); margin: 0.75rem auto 0; border-radius: 2px; }

/* --- SAMPLE BILL IMAGE WITH PRIVACY REDACTION OVERLAYS --- */
.bill-sample-privacy-card {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    padding: 2rem;
    border: 2px solid var(--gepco-green);
    box-shadow: var(--shadow-md);
}

.privacy-header h3 {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--gepco-green-dark);
    margin-top: 0.4rem;
}

.privacy-image-wrapper {
    margin-top: 1.5rem;
}

.privacy-img-container {
    position: relative;
    display: inline-block;
    max-width: 100%;
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
}

.sample-bill-img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* Redaction Overlay Masks for Personal Details */
.privacy-overlay-mask {
    position: absolute;
    background: rgba(0, 77, 40, 0.95);
    color: #ffffff;
    font-family: var(--font-heading);
    font-size: 0.82rem;
    font-weight: 800;
    letter-spacing: 0.5px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.25);
    border: 1.5px solid var(--gepco-yellow-bright);
    border-radius: 4px;
    z-index: 10;
}

/* Position mask over top-left Consumer Detail box */
.privacy-overlay-mask.mask-top-left {
    top: 10%;
    left: 9%;
    width: 53%;
    height: 10%;
}

/* Position mask over bottom-right receipt details */
.privacy-overlay-mask.mask-bottom-receipt {
    bottom: 23%;
    right: 9%;
    width: 28%;
    height: 6%;
}

/* --- EASY WAYS SECTION --- */
.easy-ways-redesigned {
    background: linear-gradient(180deg, #ffffff 0%, #f0fdf4 100%);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.method-tab-row { display: flex; justify-content: center; gap: 0.75rem; flex-wrap: wrap; }
.method-btn {
    padding: 0.85rem 1.5rem;
    background: var(--bg-white);
    border: 2px solid var(--border-color);
    color: var(--text-dark);
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 700;
    border-radius: 50px;
    cursor: pointer;
    transition: all 0.25 ease;
    box-shadow: var(--shadow-sm);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.method-btn:hover, .method-btn.active {
    background: var(--gepco-green);
    color: #ffffff;
    border-color: var(--gepco-green);
    box-shadow: 0 4px 14px rgba(0, 104, 55, 0.3);
}

.method-btn:hover i, .method-btn.active i { color: var(--gepco-yellow-bright) !important; }

.method-panel-card {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    padding: 2.5rem;
    border: 2px solid var(--gepco-green);
    box-shadow: var(--shadow-lg);
    display: none;
}

.method-panel-card.active {
    display: block;
    animation: fadeIn 0.4s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.panel-badge-bar { border-bottom: 2px solid var(--gepco-green-light); padding-bottom: 1.25rem; margin-bottom: 1.5rem; }
.badge-tag { display: inline-block; padding: 0.3rem 0.85rem; border-radius: 50px; font-size: 0.82rem; font-weight: 700; margin-bottom: 0.5rem; }
.badge-tag.green { background: #dcfce7; color: #15803d; }
.badge-tag.yellow { background: #fef9c3; color: #854d0e; }
.panel-badge-bar h3 { font-family: var(--font-heading); font-size: 1.5rem; font-weight: 800; color: var(--gepco-green-dark); }
.intro-paragraph { font-size: 0.98rem; color: var(--text-muted); line-height: 1.7; }

/* Step Flow Grid */
.step-flow-grid { display: flex; flex-direction: column; gap: 1rem; }
.flow-card {
    background: var(--bg-light);
    border-radius: var(--radius-md);
    padding: 1.25rem 1.5rem;
    display: flex;
    align-items: center;
    gap: 1.25rem;
    border: 1px solid var(--border-color);
    border-left: 4px solid var(--gepco-green);
    transition: all 0.2s ease;
}

.flow-card:hover { background: #ffffff; box-shadow: var(--shadow-md); transform: translateX(4px); }
.flow-card.highlight-card { background: #f0fdf4; border-color: #bbf7d0; border-left-color: var(--gepco-green); }
.flow-num { width: 44px; height: 44px; background: var(--gepco-green); color: #ffffff; font-family: var(--font-heading); font-size: 1.2rem; font-weight: 800; border-radius: 50%; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.flow-info h4 { font-family: var(--font-heading); font-size: 1.15rem; font-weight: 800; color: var(--gepco-green-dark); margin-bottom: 0.25rem; }
.flow-info p { font-size: 0.95rem; color: var(--text-dark); }

/* QR Boxes Grid */
.qr-boxes-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.qr-box-item { background: var(--bg-light); border-radius: var(--radius-md); padding: 1.75rem; border: 1px solid var(--border-color); text-align: center; transition: all 0.2s ease; }
.qr-box-item:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); background: #ffffff; }
.qr-box-item.highlight-border { border: 2px solid var(--gepco-yellow); background: #fffbeb; }
.qr-head-icon { width: 56px; height: 56px; background: var(--gepco-green-light); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 1.5rem; margin: 0 auto 1rem; }
.qr-head-icon.yellow-bg { background: #fef08a; }
.qr-box-item h4 { font-family: var(--font-heading); font-size: 1.2rem; font-weight: 800; color: var(--gepco-green-dark); margin-bottom: 0.5rem; }
.qr-box-item p { font-size: 0.92rem; color: var(--text-muted); line-height: 1.65; }

/* --- Summary Table --- */
.table-container-card { background: var(--bg-white); border-radius: var(--radius-lg); border: 1px solid var(--border-color); overflow: hidden; box-shadow: var(--shadow-sm); }
.gepco-summary-table { width: 100%; border-collapse: collapse; }
.gepco-summary-table th { background: var(--gepco-green); color: #ffffff; font-family: var(--font-heading); font-size: 1.05rem; padding: 1rem 1.25rem; text-align: left; }
.gepco-summary-table td { padding: 0.9rem 1.25rem; border-bottom: 1px solid var(--border-color); font-size: 0.95rem; }
.gepco-summary-table tr:hover { background: var(--gepco-green-light); }
.status-badge { display: inline-block; padding: 0.25rem 0.65rem; border-radius: 50px; font-size: 0.8rem; font-weight: 700; }
.status-badge.green { background: #dcfce7; color: #15803d; }

/* --- Content Cards Grid --- */
.content-block-card, .payment-card-item { background: var(--bg-white); border-radius: var(--radius-lg); padding: 2rem; border: 1px solid var(--border-color); box-shadow: var(--shadow-sm); border-top: 4px solid var(--gepco-green); }
.card-icon-head { width: 48px; height: 48px; background: var(--gepco-green-light); color: var(--gepco-green); border-radius: var(--radius-sm); display: flex; align-items: center; justify-content: center; font-size: 1.3rem; margin-bottom: 1rem; }
.content-block-card h3, .payment-card-item h3 { font-family: var(--font-heading); font-size: 1.2rem; font-weight: 800; color: var(--gepco-green-dark); margin-bottom: 0.85rem; }
.desc-p { font-size: 0.92rem; color: var(--text-muted); margin-bottom: 0.85rem; }
.step-bullet-list { display: flex; flex-direction: column; gap: 0.75rem; }
.step-bullet-list li { position: relative; padding-left: 1.5rem; font-size: 0.92rem; line-height: 1.6; }
.step-bullet-list li::before { content: '\f058'; font-family: 'Font Awesome 6 Free'; font-weight: 900; position: absolute; left: 0; top: 2px; color: var(--gepco-green); }

/* Callouts & Alert Boxes */
.green-callout-box { background: var(--gepco-green-light); border-left: 5px solid var(--gepco-green); border-radius: 0 var(--radius-md) var(--radius-md) 0; padding: 1.5rem; }
.green-callout-box h4 { font-family: var(--font-heading); font-size: 1.15rem; color: var(--gepco-green-dark); margin-bottom: 0.5rem; }

.yellow-alert-box { background: var(--gepco-yellow-bg); border: 2px solid var(--gepco-yellow); border-radius: var(--radius-lg); padding: 2rem; display: flex; gap: 1.5rem; }
.alert-icon { width: 50px; height: 50px; background: var(--gepco-yellow); color: #fff; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 1.5rem; flex-shrink: 0; }
.alert-content h2 { font-family: var(--font-heading); font-size: 1.6rem; color: #854d0e; margin-bottom: 0.5rem; }
.alternative-callout { background: #fff; border-radius: var(--radius-sm); padding: 1rem; border: 1px solid #fef08a; font-size: 0.95rem; }

/* Status Verification Boxes */
.status-box-step { background: var(--bg-light); border-radius: var(--radius-md); padding: 1.5rem; border-left: 4px solid var(--gepco-green); }
.step-label { font-size: 0.75rem; font-weight: 800; color: var(--gepco-green); text-transform: uppercase; }
.status-box-step h4 { font-family: var(--font-heading); font-size: 1.1rem; color: var(--gepco-green-dark); margin: 0.25rem 0 0.5rem; }

.history-card { background: var(--gepco-green-light); border-radius: var(--radius-md); padding: 1.5rem; border: 1px solid #bbf7d0; }
.history-card h3 { font-family: var(--font-heading); font-size: 1.2rem; color: var(--gepco-green-dark); }

/* Anatomy Grid */
.anatomy-item { background: var(--bg-white); border-radius: var(--radius-md); padding: 1.5rem; border: 1px solid var(--border-color); display: flex; gap: 1.25rem; }
.num-badge { width: 40px; height: 40px; background: var(--gepco-green); color: #fff; font-weight: 800; border-radius: 50%; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.anatomy-item h4 { font-family: var(--font-heading); font-size: 1.1rem; color: var(--gepco-green-dark); margin-bottom: 0.35rem; }

/* Troubleshooting Grid */
.trouble-box { background: var(--bg-white); border-radius: var(--radius-md); padding: 1.5rem; border: 1px solid var(--border-color); text-align: center; }
.t-icon-wrap { width: 46px; height: 46px; background: #fee2e2; color: #dc2626; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 1.25rem; margin: 0 auto 0.75rem; }
.trouble-box h4 { font-family: var(--font-heading); font-size: 1.05rem; margin-bottom: 0.4rem; }
.trouble-box p { font-size: 0.88rem; color: var(--text-muted); }

/* Calculator */
.calc-card { background: var(--bg-white); border-radius: var(--radius-lg); padding: 2.5rem; border: 2px solid var(--gepco-green); box-shadow: var(--shadow-md); }
.calc-title h2 { font-family: var(--font-heading); font-size: 1.8rem; color: var(--gepco-green-dark); }
.form-input { width: 100%; padding: 0.8rem 1rem; font-family: var(--font-body); font-size: 0.95rem; font-weight: 600; border-radius: var(--radius-sm); border: 1.5px solid var(--border-color); }
.calc-summary { background: var(--gepco-green-dark); color: #fff; border-radius: var(--radius-md); padding: 1.75rem; }
.calc-summary h3 { font-family: var(--font-heading); font-size: 1.3rem; margin-bottom: 1rem; padding-bottom: 0.5rem; border-bottom: 1px solid rgba(255,255,255,0.2); }
.row-item { display: flex; justify-content: space-between; padding: 0.5rem 0; font-size: 0.9rem; border-bottom: 1px dashed rgba(255,255,255,0.1); }
.divider { height: 1px; background: rgba(255,255,255,0.2); margin: 1rem 0; }
.total-row { display: flex; justify-content: space-between; align-items: center; }
.total-row h3 { font-size: 1.75rem; color: var(--gepco-yellow-bright) !important; border: none; padding: 0; margin: 0; }

/* FAQs */
.faq-list { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; gap: 1rem; }
.faq-card { background: var(--bg-white); border-radius: var(--radius-sm); border: 1px solid var(--border-color); overflow: hidden; }
.faq-btn { width: 100%; padding: 1.25rem 1.5rem; background: transparent; border: none; text-align: left; font-family: var(--font-heading); font-size: 1.05rem; font-weight: 700; color: var(--gepco-green-dark); cursor: pointer; display: flex; justify-content: space-between; align-items: center; }
.faq-arrow { transition: transform 0.3s ease; color: var(--gepco-green); }
.faq-card.active .faq-arrow { transform: rotate(180deg); }
.faq-content { padding: 0 1.5rem 1.25rem; color: var(--text-muted); font-size: 0.95rem; display: none; }
.faq-card.active .faq-content { display: block; }

/* Footer */
.gepco-footer { background: var(--gepco-green-dark); color: #ffffff; padding: 4rem 0 2rem; border-top: 4px solid var(--gepco-yellow); }
.footer-title { font-family: var(--font-heading); font-size: 1.1rem; color: var(--gepco-yellow-bright); margin-bottom: 1rem; }
.footer-desc { font-size: 0.88rem; color: #d1fae5; line-height: 1.6; }
.footer-link-list li { margin-bottom: 0.5rem; }
.footer-link-list a { color: #d1fae5; font-size: 0.88rem; display: inline-flex; align-items: center; gap: 0.4rem; }
.footer-link-list a:hover { color: #ffffff; }
.footer-copyright { padding-top: 2rem; margin-top: 2rem; border-top: 1px solid rgba(255,255,255,0.15); font-size: 0.85rem; color: #a7f3d0; }

/* Modal */
.modal-overlay { position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0,0,0,0.6); z-index: 2000; display: flex; align-items: center; justify-content: center; padding: 1.25rem; opacity: 0; visibility: hidden; transition: all 0.3s ease; }
.modal-overlay.active { opacity: 1; visibility: visible; }
.modal-card { background: #fff; border-radius: var(--radius-lg); width: 100%; max-width: 480px; overflow: hidden; box-shadow: var(--shadow-lg); }
.modal-head { background: var(--gepco-green); color: #fff; padding: 1rem 1.25rem; font-family: var(--font-heading); font-weight: 700; display: flex; justify-content: space-between; align-items: center; }
.close-modal { background: transparent; border: none; color: #fff; font-size: 1.5rem; cursor: pointer; }
.modal-body { padding: 1.75rem; }
.spin-icon { font-size: 2.5rem; margin-bottom: 0.75rem; }

@media (max-width: 768px) {
    .section { padding: 2.5rem 0; }
    .container { padding: 0 1rem; }
    .top-green-strip { display: none; }
    
    /* Header Mobile Height & Brand Logo Adjustment */
    .header-main { padding: 1.25rem 1rem; min-height: 80px; }
    .brand-logo-circle { width: 50px; height: 50px; font-size: 1.6rem; }
    .main-title { font-size: 1.45rem; }
    .sub-title { font-size: 0.75rem; }
    .mobile-toggle { font-size: 1.75rem; padding: 0.25rem 0.5rem; }
    
    /* Navigation Mobile */
    .main-nav { position: absolute; top: 100%; left: 0; width: 100%; background: #fff; flex-direction: column; padding: 1rem; display: none; border-bottom: 2px solid var(--gepco-green); }
    .main-nav.active { display: flex; }
    .mobile-toggle { display: block; }
    
    /* Tool & Search Box Mobile Padding */
    .tool-card-box { padding: 1.25rem 0.9rem; }
    .input-row { flex-direction: column; gap: 0.6rem; }
    .btn-check-submit { width: 100%; padding: 0.85rem; font-size: 0.95rem; }
    .bill-diagram-box { padding: 1rem 0.75rem; }
    .diagram-grid { grid-template-columns: 1fr; gap: 1rem; }
    
    /* Article & Titles Mobile Padding */
    .article-box { padding: 1.25rem 0.9rem; }
    .main-h1-title { font-size: 1.6rem; line-height: 1.35; margin-bottom: 1rem; }
    .lead-text { font-size: 0.95rem; line-height: 1.7; }
    .section-title-box h2 { font-size: 1.5rem; }
    .section-title-box { margin-bottom: 1.75rem; }
    
    /* Easy Ways & Method Cards Mobile Padding */
    .bill-sample-privacy-card { padding: 1.1rem 0.75rem; }
    .method-panel-card { padding: 1.25rem 0.85rem; }
    .flow-card { padding: 0.9rem 0.85rem; gap: 0.85rem; }
    .flow-num { width: 36px; height: 36px; font-size: 1rem; }
    .flow-info h4 { font-size: 1.05rem; }
    .flow-info p { font-size: 0.9rem; }
    .qr-boxes-grid { grid-template-columns: 1fr; gap: 1rem; }
    .qr-box-item { padding: 1.1rem 0.85rem; }
    .privacy-overlay-mask { font-size: 0.65rem; }
    
    /* Content Cards & Alert Boxes Mobile Padding */
    .content-block-card, .payment-card-item { padding: 1.25rem 0.9rem; }
    .green-callout-box { padding: 1rem 0.85rem; }
    .yellow-alert-box { padding: 1.25rem 0.9rem; flex-direction: column; gap: 1rem; }
    .alert-content h2 { font-size: 1.35rem; }
    .status-box-step { padding: 1rem 0.85rem; }
    .history-card { padding: 1rem 0.85rem; }
    .anatomy-item { padding: 1rem 0.85rem; gap: 0.85rem; }
    .num-badge { width: 34px; height: 34px; font-size: 0.95rem; }
    .trouble-box { padding: 1rem 0.75rem; }
    
    /* Calculator & FAQs Mobile Padding */
    .calc-card { padding: 1.25rem 0.9rem; }
    .calc-summary { padding: 1.1rem 0.85rem; }
    .faq-btn { padding: 1rem; font-size: 0.98rem; }
    .faq-content { padding: 0 1rem 1rem; font-size: 0.9rem; }
    .gepco-footer { padding: 3rem 0 1.5rem; }
}