/* ==========================================================================
   CSS Variables (Light & Dark Mode)
   ========================================================================== */
   :root {
    /* Light Theme (Default) */
    --bg-color: #FAFAFC;
    --bg-alt: #F3F5F9;
    --text-color: #1E2335;
    --text-muted: #555A6E;
    --card-bg: #FFFFFF;
    --border-color: #E0E4F0;
    
    --primary-blue: #0A2268;
    --primary-blue-dark: #061546;
    --accent-gold: #F2A900;
    --accent-gold-hover: #D99600;
    
    --shadow-sm: 0 4px 6px rgba(0,0,0,0.05);
    --shadow-md: 0 10px 30px rgba(0,0,0,0.08);
    --shadow-lg: 0 20px 40px rgba(0,0,0,0.12);
    --glass-bg: rgba(255, 255, 255, 0.7);
    --glass-border: rgba(255, 255, 255, 0.4);
}

[data-theme="dark"] {
    /* Dark Theme */
    --bg-color: #0B0E14;
    --bg-alt: #121620;
    --text-color: #E4E6EB;
    --text-muted: #A0A5B1;
    --card-bg: #1A1F2B;
    --border-color: #2A303C;
    
    --primary-blue: #2A52BE; /* Lighter blue for dark mode contrast */
    --primary-blue-dark: #1A3E99;
    --accent-gold: #FBCB43;
    
    --shadow-sm: 0 4px 6px rgba(0,0,0,0.3);
    --shadow-md: 0 10px 30px rgba(0,0,0,0.4);
    --shadow-lg: 0 20px 40px rgba(0,0,0,0.5);
    --glass-bg: rgba(26, 31, 43, 0.7);
    --glass-border: rgba(255, 255, 255, 0.05);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}

body {
    font-family: 'Outfit', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
}

/* Keep keyboard focus visible for accessibility and SEO quality signals */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
    outline: 3px solid var(--accent-gold);
    outline-offset: 2px;
    border-radius: 6px;
}

/* ==========================================================================
   Typography & Buttons
   ========================================================================== */
.text-center { text-align: center; }
.text-danger { color: #e74c3c; font-weight: 600; }
.text-success { color: #2ecc71; font-weight: 600; }
.w-100 { width: 100%; }
.w-auto { width: auto; }
.mt-3 { margin-top: 15px; }
.mt-4 { margin-top: 20px; }

.btn {
    display: inline-block;
    padding: 12px 24px;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    border: none;
    font-family: 'Outfit', sans-serif;
    transition: all 0.3s ease;
    text-align: center;
}

.btn-primary {
    background-color: var(--primary-blue);
    color: #fff;
}
.btn-primary:hover { background-color: var(--primary-blue-dark); transform: translateY(-2px); }

.btn-gold {
    background-color: var(--accent-gold);
    color: #111;
}
.btn-gold:hover { background-color: var(--accent-gold-hover); transform: translateY(-2px); }

.btn-outline {
    background-color: transparent;
    border: 2px solid var(--primary-blue);
    color: var(--primary-blue);
}
[data-theme="dark"] .btn-outline {
    border-color: var(--text-color);
    color: var(--text-color);
}
.btn-outline:hover { background-color: var(--primary-blue); color: #fff; }

.btn-large {
    padding: 15px 35px;
    font-size: 1.1rem;
}

/* ==========================================================================
   Navigation
   ========================================================================== */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background-color: var(--glass-bg);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--glass-border);
    z-index: 100;
    padding: 15px 0;
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.8rem;
    font-weight: 800;
}
.logo-card { color: var(--primary-blue); }
.logo-ki { color: var(--text-color); }
.logo-baat { color: var(--accent-gold); }

.nav-links {
    list-style: none;
    display: flex;
    gap: 30px;
}
.nav-links a {
    font-weight: 500;
    color: var(--text-muted);
    transition: color 0.3s ease, font-weight 0.1s;
}
.nav-links a:hover { color: var(--accent-gold); font-weight: 700; }
.nav-links a.nav-active {
    color: var(--accent-gold) !important;
    font-weight: 700 !important;
    position: relative;
}
.nav-links a.nav-active::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--accent-gold);
    border-radius: 2px;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 20px;
}

.theme-toggle {
    background: none;
    border: none;
    font-size: 1.2rem;
    color: var(--text-color);
    cursor: pointer;
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero-section {
    position: relative;
    padding-top: 220px; /* Offset for fixed nav and banner */
    min-height: 85vh;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.bg-pattern-dots {
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    background-image: radial-gradient(var(--border-color) 1.5px, transparent 1.5px);
    background-size: 30px 30px;
    opacity: 0.3;
    z-index: 0;
}

.hero-bg-curve {
    position: absolute;
    top: 0; right: 0;
    width: 45%; height: 100%;
    background: linear-gradient(135deg, #0A2268 0%, #061546 100%);
    border-radius: 30% 0 0 30% / 50% 0 0 50%;
    z-index: 0;
}
[data-theme="dark"] .hero-bg-curve {
    background: linear-gradient(135deg, #1A1F2B 0%, #0B0E14 100%);
    border-left: 1px solid var(--border-color);
}

.unbiased-badge-top {
    position: absolute;
    top: 100px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 10;
}

.badge-inner {
    background-color: var(--primary-blue);
    color: #fff;
    padding: 6px 20px;
    border-radius: 30px;
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 1px;
    border: 2px solid var(--accent-gold);
    box-shadow: var(--shadow-sm);
}

.hero-content {
    position: relative;
    z-index: 5;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    width: 100%;
}

.hero-left {
    flex: 0 0 55%;
    padding-right: 40px;
}

.main-heading {
    font-size: 4rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 25px;
}

.highlight-gold { color: var(--accent-gold); }

.sub-heading-container {
    display: flex;
    gap: 15px;
    margin-bottom: 40px;
}
.vertical-line {
    width: 4px;
    background-color: var(--accent-gold);
    border-radius: 2px;
}
.sub-heading {
    font-size: 1.25rem;
    color: var(--text-muted);
    font-weight: 400;
}

.hero-right {
    flex: 0 0 45%;
    display: flex;
    justify-content: center;
    align-items: center;
    perspective: 1000px;
}

/* Glass Mockup */
.glass-mockup {
    position: relative;
    width: 380px;
    height: 240px;
    transform-style: preserve-3d;
    transform: rotateY(-15deg) rotateX(10deg);
}

.glass-card {
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: 20px;
    padding: 30px;
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
}

.front {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 25px 45px rgba(0,0,0,0.2);
    z-index: 2;
    color: #fff;
}
[data-theme="dark"] .front {
    background: rgba(42, 82, 190, 0.2);
    border-color: rgba(255,255,255,0.1);
}

.back {
    background: linear-gradient(135deg, var(--accent-gold) 0%, #D99600 100%);
    transform: translateZ(-30px) translateY(20px) translateX(-20px);
    z-index: 1;
    box-shadow: var(--shadow-lg);
}

.card-wifi { font-size: 2rem; transform: rotate(90deg); position: absolute; right: 30px; top: 30px; }
.card-logo { font-size: 1.5rem; font-weight: 800; margin-top: 10px; }
.card-chip { width: 50px; height: 35px; background: rgba(255,255,255,0.3); border-radius: 5px; margin: 30px 0; }
.card-text { font-size: 1rem; letter-spacing: 3px; font-weight: 600; opacity: 0.8; }

/* ==========================================================================
   Sections Base
   ========================================================================== */
.section {
    padding: 100px 20px;
}
.bg-alt { background-color: var(--bg-alt); }
.container { max-width: 1200px; margin: 0 auto; }

.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 10px;
}
.section-subtitle {
    font-size: 1.1rem;
    color: var(--text-muted);
    margin-bottom: 50px;
}

/* ==========================================================================
   Tools Grid (RealCost, Reward Decoder, CardSense)
   ========================================================================== */
.tools-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.tool-card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 40px 30px;
    box-shadow: var(--shadow-sm);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
}
.tool-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-blue);
}

.tool-icon {
    width: 60px; height: 60px;
    background-color: var(--bg-alt);
    border-radius: 15px;
    display: flex; justify-content: center; align-items: center;
    font-size: 1.8rem;
    color: var(--primary-blue);
    margin-bottom: 25px;
}
[data-theme="dark"] .tool-icon {
    background-color: rgba(42, 82, 190, 0.1);
}

.tool-card h3 { font-size: 1.4rem; margin-bottom: 15px; }
.tool-card p { color: var(--text-muted); font-size: 0.95rem; margin-bottom: 25px; flex-grow: 1; }

.interactive-preview {
    background-color: var(--bg-alt);
    border-radius: 12px;
    padding: 20px;
    margin-top: auto;
}

.form-input, .form-select {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background-color: var(--card-bg);
    color: var(--text-color);
    font-family: 'Outfit', sans-serif;
    margin-top: 5px;
}
.form-input:focus, .form-select:focus {
    outline: none;
    border-color: var(--primary-blue);
}

.calc-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 0;
    border-bottom: 1px solid var(--border-color);
    font-size: 0.95rem;
}
.calc-row:last-child { border-bottom: none; }

/* ==========================================================================
   CardKiBaat Guide
   ========================================================================== */
.guide-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.guide-module {
    background-color: var(--card-bg);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    transition: transform 0.3s ease;
    cursor: pointer;
}
.guide-module:hover { transform: translateY(-5px); }

.module-img {
    height: 180px;
    display: flex; justify-content: center; align-items: center;
    font-size: 4rem;
    color: rgba(255,255,255,0.9);
}
.bg-gradient-1 { background: linear-gradient(135deg, #FF6B6B 0%, #C0392B 100%); }
.bg-gradient-2 { background: linear-gradient(135deg, #48C6EF 0%, #0093E9 100%); }
.bg-gradient-3 { background: linear-gradient(135deg, #F2A900 0%, #D35400 100%); }

.module-content {
    padding: 25px;
}
.module-content h4 { font-size: 1.2rem; margin-bottom: 10px; }
.module-content p { color: var(--text-muted); font-size: 0.9rem; }

/* ==========================================================================
   Lead Gen / Alerts Section
   ========================================================================== */
.alert-box {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-blue-dark) 100%);
    border-radius: 25px;
    padding: 60px;
    color: #fff;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.alert-box::before {
    content: ''; position: absolute; top: -50%; left: -50%; width: 200%; height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 60%);
    pointer-events: none;
}

.alert-content { position: relative; z-index: 1; max-width: 800px; margin: 0 auto; }
.alert-content h2 { font-size: 2.5rem; margin-bottom: 15px; }
.alert-content p { font-size: 1.1rem; opacity: 0.9; margin-bottom: 30px; }

.alert-form .form-row {
    display: flex;
    gap: 15px;
    justify-content: center;
    margin-bottom: 15px;
}
.alert-form input, .alert-form select {
    background-color: rgba(255,255,255,0.1);
    color: #fff;
    border: 1px solid rgba(255,255,255,0.3);
}
.alert-form input::placeholder { color: rgba(255,255,255,0.6); }
.alert-form input:focus, .alert-form select:focus {
    background-color: rgba(255,255,255,0.2);
    border-color: var(--accent-gold);
}

.alert-form option { color: #111; }

.privacy-note {
    font-size: 0.85rem;
    opacity: 0.7;
    display: flex; align-items: center; justify-content: center; gap: 8px;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.footer {
    padding: 40px 20px;
    background-color: var(--bg-color);
    border-top: 1px solid var(--border-color);
}
.footer p { color: var(--text-muted); font-size: 0.9rem; margin-bottom: 10px; }
.footer a { color: var(--primary-blue); font-weight: 500; }
[data-theme="dark"] .footer a { color: var(--accent-gold); }
.footer .disclaimer { font-size: 0.8rem; opacity: 0.7; }

/* Responsive */
.menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--text-color);
    cursor: pointer;
    margin-left: 15px;
}

@media (max-width: 992px) {
    .tools-grid, .guide-grid { grid-template-columns: repeat(2, 1fr); }
    .hero-content { flex-direction: column; text-align: center; }
    .hero-bg-curve { display: none; }
    .hero-left { padding-right: 0; margin-bottom: 60px; }
    .sub-heading-container { justify-content: center; }
    .hero-right { display: none; } /* Hide 3D graphic on mobile for simplicity */
    .alert-form .form-row { flex-direction: column; }
    .alert-form select { width: 100% !important; }
}

@media (max-width: 768px) {
    .logo { font-size: 1.5rem; }
    .nav-actions { gap: 5px; }
    .theme-toggle i { font-size: 1.1rem; }
    .transparency-banner { flex-direction: column; padding: 15px 20px; font-size: 0.85rem; text-align: center; line-height: 1.5; gap: 8px; }
    .tools-grid, .guide-grid { grid-template-columns: 1fr; }
    .main-heading { font-size: 2.8rem; }
    
    .menu-toggle { display: inline-block; }
    .nav-links {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: var(--glass-bg);
        backdrop-filter: blur(15px);
        padding: 20px;
        gap: 15px;
        box-shadow: 0 10px 20px rgba(0,0,0,0.1);
        border-bottom: 1px solid var(--border-color);
        text-align: center;
    }
    .nav-links.active {
        display: flex;
    }
    /* Mobile: hide only the navbar CTA (not all primary buttons) */
    .nav-actions > a.btn.btn-primary { display: none; }
}

/* ==========================================================================
   Phase 2: Additional UI Elements
   ========================================================================== */

/* Tagline Eyebrow */
.eyebrow-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(10, 34, 104, 0.05);
    color: var(--primary-blue);
    border: 1px solid rgba(10, 34, 104, 0.1);
    padding: 6px 16px;
    border-radius: 30px;
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 1px;
    margin-bottom: 20px;
}
[data-theme="dark"] .eyebrow-badge {
    background: rgba(42, 82, 190, 0.1);
    color: var(--accent-gold);
    border-color: rgba(251, 203, 67, 0.2);
}

/* Review Cards */
.reviews-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}
.review-card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 15px;
    padding: 25px;
    box-shadow: var(--shadow-sm);
    text-align: left;
}
.review-card h4 {
    font-size: 1.3rem;
    margin-bottom: 10px;
}
.rating {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 15px;
}
.text-gold { color: var(--accent-gold); }

/* Functional Tools Result Box */
.calc-result {
    font-size: 0.95rem;
    line-height: 1.5;
    animation: fadeIn 0.3s ease-in-out;
}
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-5px); }
    to { opacity: 1; transform: translateY(0); }
}
@media (max-width: 992px) {
    .reviews-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
    .logo { font-size: 1.5rem; }
    .nav-actions { gap: 5px; }
    .theme-toggle i { font-size: 1.1rem; }
    .transparency-banner { flex-direction: column; padding: 15px 20px; font-size: 0.85rem; text-align: center; line-height: 1.5; gap: 8px; }
    .reviews-grid { grid-template-columns: 1fr; }
}

/* ==========================================================================
   Phase 3: Transparency & Detailed Content
   ========================================================================== */

/* Transparency Banner */
.transparency-banner {
    background-color: #fff9e6;
    color: #8a6d3b;
    padding: 15px 20px;
    text-align: center;
    font-size: 0.95rem;
    font-weight: 600;
    border-bottom: 2px solid #faebcc;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
    /* Push banner below fixed navbar (navbar height ~70px) */
    margin-top: 70px;
    position: relative;
    z-index: 50;
}
.transparency-banner i { color: #8a6d3b; font-size: 1.2rem; }
[data-theme="dark"] .transparency-banner {
    background-color: rgba(242, 169, 0, 0.15);
    border-bottom: 2px solid rgba(242, 169, 0, 0.3);
    color: var(--accent-gold);
}
[data-theme="dark"] .transparency-banner i { color: var(--accent-gold); }

/* Detailed Review / Guide Content Styles */
.content-section {
    margin-bottom: 40px;
    background: var(--card-bg);
    padding: 30px;
    border-radius: 15px;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
}
.content-section h2 {
    color: var(--primary-blue);
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.6rem;
}
[data-theme="dark"] .content-section h2 { color: var(--accent-gold); }

/* Pros & Cons / The BS Box */
.truth-box {
    padding: 20px;
    border-radius: 10px;
    margin-bottom: 20px;
}
.truth-box.pros { background: rgba(46, 204, 113, 0.05); border-left: 4px solid #2ecc71; }
.truth-box.cons { background: rgba(242, 169, 0, 0.05); border-left: 4px solid var(--accent-gold); }
.truth-box.bs { background: rgba(231, 76, 60, 0.05); border-left: 4px solid #e74c3c; }

.truth-box h3 { margin-bottom: 10px; font-size: 1.2rem; display: flex; align-items: center; gap: 8px; }
.truth-box ul { list-style: none; margin-left: 0; }
.truth-box li { margin-bottom: 8px; position: relative; padding-left: 25px; line-height: 1.5; font-size: 1rem; }
.truth-box.pros li::before { content: "\f00c"; font-family: "Font Awesome 6 Free"; font-weight: 900; color: #2ecc71; position: absolute; left: 0; }
.truth-box.cons li::before { content: "\f06a"; font-family: "Font Awesome 6 Free"; font-weight: 900; color: var(--accent-gold); position: absolute; left: 0; }
.truth-box.bs li::before { content: "\f071"; font-family: "Font Awesome 6 Free"; font-weight: 900; color: #e74c3c; position: absolute; left: 0; }

.math-breakdown { font-family: monospace; background: var(--bg-alt); padding: 15px; border-radius: 8px; font-size: 1.1rem; }

/* Footer Social Icons Override */
.footer .social-links a {
    color: var(--primary-blue) !important;
    transition: color 0.3s ease;
}
.footer .social-links a:hover {
    color: var(--accent-gold) !important;
}
[data-theme="dark"] .footer .social-links a {
    color: rgba(255, 255, 255, 0.8) !important;
}
[data-theme="dark"] .footer .social-links a:hover {
    color: var(--accent-gold) !important;
}

/* ==========================================================================
   Realistic 3D Credit Card (Review & Compare Pages)
   ========================================================================== */
.credit-card-3d {
    width: 320px;
    height: 200px;
    border-radius: 18px;
    position: relative;
    transform-style: preserve-3d;
    transform: perspective(1000px) rotateY(-18deg) rotateX(8deg);
    transition: transform 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275),
                box-shadow 0.5s ease;
    cursor: pointer;
    margin: 0 auto;
    /* Layered shadows for depth */
    box-shadow:
        0 20px 60px rgba(0,0,0,0.4),
        0 6px 20px rgba(0,0,0,0.25),
        inset 0 1px 0 rgba(255,255,255,0.15);
}
.credit-card-3d.compact {
    width: 270px;
    height: 170px;
    border-radius: 16px;
    transform: perspective(900px) rotateY(-14deg) rotateX(7deg);
    margin: 0 auto 14px;
}
.credit-card-3d.compact:hover {
    transform: perspective(900px) rotateY(0deg) rotateX(0deg) scale(1.04);
}
.credit-card-3d.compact::before,
.credit-card-3d.compact::after {
    border-radius: 16px;
}
.credit-card-3d.compact .card-inner {
    border-radius: 16px;
    padding: 18px 18px 14px;
}
.credit-card-3d.compact .card-bank-name { font-size: 0.65rem; }
.credit-card-3d.compact .card-chip { width: 34px; height: 26px; border-radius: 4px; }
.credit-card-3d.compact .card-number { font-size: 1.05rem; letter-spacing: 3px; }
.credit-card-3d.compact .card-holder-name { font-size: 0.72rem; max-width: 150px; }
.credit-card-3d.compact .card-network { font-size: 1.15rem; }
.credit-card-3d.compact .card-contactless { font-size: 1.05rem; }
.credit-card-3d:hover {
    transform: perspective(1000px) rotateY(0deg) rotateX(0deg) scale(1.06);
    box-shadow:
        0 30px 70px rgba(0,0,0,0.5),
        0 10px 30px rgba(0,0,0,0.3),
        inset 0 1px 0 rgba(255,255,255,0.2);
}

/* Holographic shimmer overlay */
.credit-card-3d::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 18px;
    background: linear-gradient(
        125deg,
        rgba(255,255,255,0.35) 0%,
        rgba(255,255,255,0.05) 40%,
        rgba(255,255,255,0.2) 60%,
        rgba(255,255,255,0.02) 100%
    );
    pointer-events: none;
    z-index: 5;
}
/* Homepage / grid: softer shimmer so gradients read clearly */
.credit-card-3d.compact::before {
    background: linear-gradient(
        125deg,
        rgba(255,255,255,0.14) 0%,
        rgba(255,255,255,0.03) 45%,
        rgba(255,255,255,0.08) 65%,
        rgba(255,255,255,0.02) 100%
    );
}

/* Edge highlight (top-left bevel) */
.credit-card-3d::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 18px;
    border: 1px solid rgba(255,255,255,0.22);
    pointer-events: none;
    z-index: 6;
}

.card-inner {
    position: relative;
    width: 100%;
    height: 100%;
    border-radius: 18px;
    padding: 22px 24px 18px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    overflow: hidden;
    color: #fff;
    /* Fallback if no bank gradient class is present */
    background: linear-gradient(135deg, #1a2980 0%, #26d0ce 60%, #0d1b6e 100%);
}

/* Bank / theme gradients (homepage, compare, anywhere 3D card is used) */
.card-grad-sbi     { background: linear-gradient(135deg, #0f4c81 0%, #1a73c8 60%, #0d3b6e 100%); }
.card-grad-hdfc    { background: linear-gradient(135deg, #003087 0%, #0050a0 60%, #001f5b 100%); }
.card-grad-axis    { background: linear-gradient(135deg, #6b21a8 0%, #9333ea 60%, #4c1d95 100%); }
.card-grad-icici   { background: linear-gradient(135deg, #b34700 0%, #e05d00 60%, #7a2f00 100%); }
.card-grad-amex    { background: linear-gradient(135deg, #0a7b83 0%, #21c7d0 60%, #085f66 100%); }
.card-grad-kotak   { background: linear-gradient(135deg, #e63946 0%, #ff6b6b 60%, #c62828 100%); }
.card-grad-yes     { background: linear-gradient(135deg, #0d6e3f 0%, #16a34a 60%, #064e2d 100%); }
.card-grad-default { background: linear-gradient(135deg, #1a2980 0%, #26d0ce 60%, #0d1b6e 100%); }

/* Diagonal stripe pattern for card texture */
.card-inner::before {
    content: '';
    position: absolute;
    inset: 0;
    background: repeating-linear-gradient(
        -45deg,
        rgba(255,255,255,0.03) 0px,
        rgba(255,255,255,0.03) 1px,
        transparent 1px,
        transparent 10px
    );
    pointer-events: none;
    z-index: 0;
}

.card-row-top,
.card-row-mid,
.card-row-bot {
    position: relative;
    z-index: 2;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.card-bank-name {
    font-size: 0.75rem;
    font-weight: 800;
    letter-spacing: 2px;
    text-transform: uppercase;
    opacity: 0.92;
    text-shadow: 0 1px 3px rgba(0,0,0,0.4);
}

.card-contactless {
    font-size: 1.3rem;
    transform: rotate(90deg);
    opacity: 0.85;
}

/* EMV Chip */
.card-chip {
    width: 42px;
    height: 32px;
    background: linear-gradient(135deg, #e8c953 0%, #c9a227 35%, #f5d97e 55%, #b8901c 100%);
    border-radius: 5px;
    box-shadow:
        inset 0 1px 0 rgba(255,255,255,0.4),
        inset 0 -1px 0 rgba(0,0,0,0.3),
        0 2px 6px rgba(0,0,0,0.4);
    position: relative;
    overflow: hidden;
}
.card-chip::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 0; right: 0;
    height: 1px;
    background: rgba(0,0,0,0.25);
    transform: translateY(-50%);
}
.card-chip::after {
    content: '';
    position: absolute;
    top: 0; bottom: 0;
    left: 50%;
    width: 1px;
    background: rgba(0,0,0,0.2);
    transform: translateX(-50%);
}

.card-number {
    font-family: 'Courier New', 'Courier', monospace;
    font-size: 1.3rem;
    font-weight: 700;
    letter-spacing: 4px;
    text-shadow:
        1px 1px 0 rgba(255,255,255,0.15),
        -1px -1px 0 rgba(0,0,0,0.6),
        0 2px 8px rgba(0,0,0,0.5);
    margin: 0;
}

.card-valid-label {
    font-size: 0.5rem;
    letter-spacing: 1.5px;
    opacity: 0.65;
    text-transform: uppercase;
    margin-bottom: 2px;
    display: block;
}
.card-valid-date {
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
    font-weight: 700;
    text-shadow: 0 1px 4px rgba(0,0,0,0.5);
}

.card-holder-name {
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    text-shadow: 0 1px 4px rgba(0,0,0,0.4);
    max-width: 180px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.card-network {
    font-size: 1.5rem;
    font-weight: 900;
    font-style: italic;
    opacity: 0.9;
    text-shadow: 0 1px 4px rgba(0,0,0,0.5);
    letter-spacing: -1px;
}

/* Compare page card wrapper smaller */
.compare-card-3d {
    width: 100%;
    max-width: 260px;
    height: 165px;
    border-radius: 14px;
    position: relative;
    transform-style: preserve-3d;
    transform: perspective(800px) rotateY(-12deg) rotateX(5deg);
    transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275),
                box-shadow 0.4s ease;
    cursor: pointer;
    margin: 0 auto;
    box-shadow:
        0 15px 45px rgba(0,0,0,0.4),
        0 5px 15px rgba(0,0,0,0.2),
        inset 0 1px 0 rgba(255,255,255,0.12);
}
.compare-card-3d:hover {
    transform: perspective(800px) rotateY(0deg) rotateX(0deg) scale(1.04);
    box-shadow:
        0 25px 55px rgba(0,0,0,0.5),
        0 8px 25px rgba(0,0,0,0.3);
}
.compare-card-3d::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 14px;
    background: linear-gradient(
        125deg,
        rgba(255,255,255,0.3) 0%,
        rgba(255,255,255,0.04) 40%,
        rgba(255,255,255,0.18) 60%,
        rgba(255,255,255,0.02) 100%
    );
    pointer-events: none;
    z-index: 5;
}
.compare-card-3d::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 14px;
    border: 1px solid rgba(255,255,255,0.2);
    pointer-events: none;
    z-index: 6;
}
.compare-card-3d .card-inner {
    border-radius: 14px;
    padding: 16px 18px 14px;
}
.compare-card-3d .card-bank-name { font-size: 0.65rem; }
.compare-card-3d .card-chip { width: 32px; height: 24px; border-radius: 4px; }
.compare-card-3d .card-number { font-size: 1rem; letter-spacing: 3px; }
.compare-card-3d .card-holder-name { font-size: 0.7rem; max-width: 130px; }
.compare-card-3d .card-network { font-size: 1.1rem; }
.compare-card-3d .card-contactless { font-size: 1rem; }

/* ==========================================================================
   Scroll To Top Button (Global)
   ========================================================================== */
#scroll-to-top {
    position: fixed;
    bottom: 32px;
    left: 32px;
    z-index: 999;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background-color: var(--primary-blue);
    color: #ffffff;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    box-shadow: 0 6px 20px rgba(10, 34, 104, 0.35);
    opacity: 0;
    transform: translateY(20px) scale(0.85);
    pointer-events: none;
    transition: opacity 0.35s ease, transform 0.35s ease, background-color 0.25s ease, box-shadow 0.25s ease;
}
#scroll-to-top.visible {
    opacity: 1;
    transform: translateY(0) scale(1);
    pointer-events: auto;
}
#scroll-to-top:hover {
    background-color: var(--accent-gold);
    box-shadow: 0 8px 25px rgba(242, 169, 0, 0.45);
    transform: translateY(-3px) scale(1.08);
}
#scroll-to-top:active {
    transform: translateY(0) scale(0.96);
}