/* 
 * Premium QR (PQR) - Professional B2B SaaS Design System
 * Clean Slate-Navy Corporate Dark Theme & Sophisticated Glassmorphism
 */

/* ==========================================
   1. Design Tokens & Global Root Variables
   ========================================== */
:root {
    /* Fonts */
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;

    /* Color Palette - Premium Royal Blue, Sapphire & Teal Enteprise Theme */
    --bg-dark: #030712; /* Deep Corporate Slate Black */
    --bg-card: rgba(15, 23, 42, 0.6); /* Slate-900 transparent */
    --bg-card-hover: rgba(30, 41, 59, 0.85); /* Slate-800 transparent */
    --border-color: rgba(255, 255, 255, 0.05);
    --border-hover: rgba(255, 255, 255, 0.12);
    
    --primary: #2563eb; /* Corporate Royal Blue */
    --primary-glow: rgba(37, 99, 235, 0.35);
    --primary-light: #60a5fa; /* Crisp Sky Blue */
    --secondary: #1d4ed8; /* Darker Sapphire Blue */
    --accent-teal: #0d9488; /* Corporate Trustworthy Teal */
    --accent-gold: #f59e0b; /* Sophisticated Amber Gold for Premium Highlights */
    --accent-gold-glow: rgba(245, 158, 11, 0.2);

    --text-main: #f3f4f6; /* Slate-100 */
    --text-muted: #94a3b8; /* Slate-400 */
    
    /* System States */
    --success: #10b981; /* Emerald Green */
    --success-glow: rgba(16, 185, 129, 0.15);
    --warning: #f59e0b; /* Amber */
    --warning-glow: rgba(245, 158, 11, 0.15);
    --danger: #ef4444; /* Crimson Red */
    --danger-glow: rgba(239, 68, 68, 0.15);

    /* Shadows & Effects */
    --glow-shadow: 0 0 40px rgba(37, 99, 235, 0.15);
    --glass-shadow: 0 12px 40px 0 rgba(0, 0, 0, 0.5);
    --transition-smooth: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    
    --border-radius-lg: 20px;
    --border-radius-md: 14px;
    --border-radius-sm: 8px;
}

/* ==========================================
   2. Reset & Core Structure
   ========================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    scroll-behavior: smooth;
}

html, body {
    width: 100%;
    max-width: 100%;
    overflow-x: hidden !important;
}

body {
    background-color: var(--bg-dark);
    color: var(--text-main);
    font-family: var(--font-body);
    line-height: 1.6;
    position: relative;
    touch-action: manipulation; /* Prevents double-tap zoom globally */
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    letter-spacing: -0.02em;
}

a {
    color: inherit;
    text-decoration: none;
    transition: var(--transition-smooth);
}

button, input, select, textarea {
    font-family: inherit;
    outline: none;
}

/* ==========================================
   3. Ambient Decorative Glow Backgrounds
   ========================================== */
.glow-bg {
    position: absolute;
    width: 800px;
    height: 800px;
    border-radius: 50%;
    filter: blur(160px);
    opacity: 0.08; /* Softened for a corporate, sleek look */
    z-index: -1;
    pointer-events: none;
}
.glow-bg-1 {
    top: -5%;
    left: -15%;
    background: radial-gradient(circle, var(--primary) 0%, transparent 70%);
}
.glow-bg-2 {
    top: 50%;
    right: -15%;
    background: radial-gradient(circle, var(--accent-teal) 0%, transparent 70%);
}

/* ==========================================
   4. Glassmorphic Navigation Bar
   ========================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 80px;
    background: rgba(3, 7, 18, 0.75);
    border-bottom: 1px solid var(--border-color);
    backdrop-filter: blur(16px) saturate(180%);
    z-index: 1000;
    transition: var(--transition-smooth);
}

.nav-container {
    max-width: 1300px;
    height: 100%;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.45rem;
    font-family: var(--font-heading);
    font-weight: 800;
}

.logo-img {
    height: 38px;
    width: auto;
    object-fit: contain;
}

.logo span {
    color: var(--primary-light);
}

.nav-links {
    display: flex;
    gap: 2.25rem;
}

.nav-link {
    font-size: 0.92rem;
    font-weight: 500;
    color: var(--text-muted);
    position: relative;
    padding: 0.5rem 0;
}

.nav-link:hover {
    color: var(--text-main);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary), var(--accent-teal));
    transition: var(--transition-smooth);
}

.nav-link:hover::after {
    width: 100%;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

/* Custom Buttons Styling */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.7rem 1.4rem;
    border-radius: var(--border-radius-sm);
    font-weight: 600;
    font-size: 0.92rem;
    cursor: pointer;
    transition: var(--transition-smooth);
    border: 1px solid transparent;
}

.btn-sm {
    padding: 0.45rem 0.9rem;
    font-size: 0.85rem;
}

.btn-large {
    padding: 0.95rem 1.85rem;
    font-size: 1rem;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(37, 99, 235, 0.25);
}

.btn-glow {
    position: relative;
    overflow: hidden;
}

.btn-glow::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: 0.7s;
}

.btn-glow:hover::before {
    left: 100%;
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.04);
    color: var(--text-main);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--border-hover);
    transform: translateY(-2px);
}

.btn-block {
    display: flex;
    width: 100%;
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--text-main);
    font-size: 1.4rem;
    cursor: pointer;
}

/* Mobile Dropdown */
.mobile-nav {
    display: none;
    flex-direction: column;
    background: var(--bg-dark);
    border-bottom: 1px solid var(--border-color);
    padding: 1.5rem 2rem;
    gap: 1.25rem;
}

.mobile-nav-link {
    font-size: 1.05rem;
    font-weight: 500;
    padding: 0.4rem 0;
    color: var(--text-muted);
}

.mobile-nav-link:hover {
    color: var(--text-main);
}

/* ==========================================
   5. Hero Section
   ========================================== */
.hero {
    min-height: 100vh;
    padding: 130px 0 80px;
    display: flex;
    align-items: center;
    position: relative;
}

.hero-container {
    max-width: 1300px;
    margin: 0 auto;
    padding: 0 2rem;
    display: grid;
    grid-template-columns: 1.05fr 0.95fr;
    gap: 5rem;
    align-items: center;
}

.hero-content {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.badge-new {
    align-self: flex-start;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(37, 99, 235, 0.1);
    border: 1px solid rgba(37, 99, 235, 0.25);
    padding: 0.4rem 0.95rem;
    border-radius: 100px;
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--primary-light);
}

.badge-dot {
    width: 6px;
    height: 6px;
    background-color: var(--primary-light);
    border-radius: 50%;
    animation: pulse-ring-glow 1.5s infinite;
}

@keyframes pulse-ring-glow {
    0% { transform: scale(0.9); opacity: 0.6; }
    50% { transform: scale(1.3); opacity: 1; }
    100% { transform: scale(0.9); opacity: 0.6; }
}

.hero-title {
    font-size: 3.25rem;
    line-height: 1.15;
    font-weight: 800;
    color: white;
}

.gradient-text {
    background: linear-gradient(135deg, #60a5fa 0%, #3b82f6 50%, #2563eb 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    font-size: 1.1rem;
    color: var(--text-muted);
    line-height: 1.65;
    max-width: 580px;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    margin-top: 0.5rem;
}

.hero-stats {
    display: flex;
    gap: 3.5rem;
    margin-top: 1.5rem;
    border-top: 1px solid var(--border-color);
    padding-top: 1.75rem;
}

.hero-stat-item {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.stat-num {
    font-family: var(--font-heading);
    font-size: 1.85rem;
    font-weight: 800;
    color: white;
}

.stat-label {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* Hero Screen Visual Mockups */
.hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.scene-wrapper {
    position: relative;
    width: 100%;
    height: 480px;
}

/* Glassmorphic Window Styling */
.window-mockup {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    box-shadow: var(--glass-shadow);
    backdrop-filter: blur(20px);
    overflow: hidden;
    position: absolute;
    transition: var(--transition-smooth);
}

.window-mockup:hover {
    border-color: var(--border-hover);
    transform: translateY(-4px);
}

.window-header {
    background: rgba(255, 255, 255, 0.02);
    padding: 0.7rem 1.25rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
}
.dot-red { background-color: #ef4444; }
.dot-yellow { background-color: #f59e0b; }
.dot-green { background-color: #10b981; }

.window-title {
    font-size: 0.72rem;
    color: var(--text-muted);
    font-weight: 500;
    margin-left: 0.4rem;
}

/* Main Dashboard UI Mockup */
.main-dashboard {
    width: 440px;
    height: 310px;
    left: 0;
    top: 20px;
    z-index: 2;
}

.window-content {
    padding: 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.mock-db-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.mock-db-title {
    font-size: 0.92rem;
    font-weight: 600;
}

.mock-db-live {
    font-size: 0.72rem;
    color: var(--success);
    background: rgba(16, 185, 129, 0.08);
    padding: 0.2rem 0.55rem;
    border-radius: 100px;
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    font-weight: 600;
}

.pulse-dot {
    width: 6px;
    height: 6px;
    background-color: var(--success);
    border-radius: 50%;
    animation: blink 1.2s infinite;
}

@keyframes blink {
    0%, 100% { opacity: 0.4; }
    50% { opacity: 1; }
}

.mock-tables-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.75rem;
}

.mock-table {
    border-radius: var(--border-radius-sm);
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    height: 100px;
    transition: var(--transition-smooth);
}

.mock-table:hover {
    transform: scale(1.02);
}

.t-head {
    display: flex;
    flex-direction: column;
}

.t-name {
    font-size: 0.8rem;
    font-weight: 700;
}

.t-status {
    font-size: 0.65rem;
    color: var(--text-muted);
}

.t-body {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.t-desc {
    font-size: 0.7rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.t-timer {
    font-size: 0.65rem;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

/* Color codes of tables */
.card-green {
    background: rgba(16, 185, 129, 0.06);
    border-color: rgba(16, 185, 129, 0.2);
}
.card-green .t-name { color: #10b981; }

.card-orange {
    background: rgba(245, 158, 11, 0.06);
    border-color: rgba(245, 158, 11, 0.2);
}
.card-orange .t-name { color: #f59e0b; }

.card-red {
    background: rgba(239, 68, 68, 0.06);
    border-color: rgba(239, 68, 68, 0.2);
}
.card-red .t-name { color: #ef4444; }

.pulse-orange {
    animation: glow-pulse-orange 2s infinite alternate;
}
.pulse-red {
    animation: glow-pulse-red 2s infinite alternate;
}

@keyframes glow-pulse-orange {
    0% { box-shadow: 0 0 5px rgba(245, 158, 11, 0.05); }
    100% { box-shadow: 0 0 15px rgba(245, 158, 11, 0.2); }
}
@keyframes glow-pulse-red {
    0% { box-shadow: 0 0 5px rgba(239, 68, 68, 0.05); }
    100% { box-shadow: 0 0 15px rgba(239, 68, 68, 0.25); }
}

.text-warning { color: var(--warning); }
.text-danger { color: var(--danger); }

.mock-db-graph {
    background: rgba(255, 255, 255, 0.01);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    padding: 0.75rem;
}

.graph-label {
    font-size: 0.7rem;
    color: var(--text-muted);
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.graph-bars {
    display: flex;
    align-items: flex-end;
    gap: 0.75rem;
    height: 45px;
    margin-top: 0.5rem;
    padding-left: 0.5rem;
}

.bar {
    flex: 1;
    background: rgba(37, 99, 235, 0.1);
    border-radius: 3px 3px 0 0;
    transition: var(--transition-smooth);
    position: relative;
}

.bar.active {
    background: linear-gradient(to top, var(--primary), var(--primary-light));
    box-shadow: 0 0 10px rgba(37, 99, 235, 0.3);
}

.bar.active span {
    position: absolute;
    top: -14px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 0.6rem;
    color: white;
    font-weight: 700;
}

/* Floating Customer Phone Mockup */
.customer-phone {
    width: 200px;
    height: 380px;
    right: 20px;
    bottom: 20px;
    z-index: 3;
    border-radius: 28px;
    border: 3px solid rgba(255, 255, 255, 0.12);
    background: #070a14;
}

.phone-speaker {
    width: 45px;
    height: 10px;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 10px;
    margin: 0.6rem auto 0.4rem;
}

.phone-content {
    height: calc(100% - 24px);
    display: flex;
    flex-direction: column;
    padding: 0.75rem;
    justify-content: space-between;
}

.phone-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.4rem;
}

.phone-logo {
    font-size: 0.75rem;
    font-weight: 700;
}

.phone-table-badge {
    font-size: 0.6rem;
    background: rgba(37, 99, 235, 0.15);
    color: var(--primary-light);
    font-weight: 700;
    padding: 0.1rem 0.4rem;
    border-radius: 4px;
}

.phone-menu-body {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    flex-grow: 1;
    justify-content: center;
}

.phone-product-card {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    padding: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.prod-img-placeholder {
    width: 32px;
    height: 32px;
    border-radius: 6px;
    background: rgba(37, 99, 235, 0.08);
    color: var(--primary-light);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
}

.prod-details {
    display: flex;
    flex-direction: column;
}

.prod-title {
    font-size: 0.7rem;
    font-weight: 600;
}

.prod-price {
    font-size: 0.65rem;
    color: var(--primary-light);
    font-weight: 700;
}

.phone-action-btn {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    border-radius: var(--border-radius-sm);
    padding: 0.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.7rem;
    font-weight: 700;
    cursor: pointer;
}

.phone-waiter-btn {
    position: relative;
    background: rgba(16, 185, 129, 0.08);
    color: #10b981;
    border: 1px solid rgba(16, 185, 129, 0.25);
    border-radius: var(--border-radius-sm);
    padding: 0.5rem;
    text-align: center;
    font-size: 0.7rem;
    font-weight: 700;
    cursor: pointer;
    overflow: hidden;
}

.ripple-wave {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 100px;
    height: 100px;
    background: rgba(16, 185, 129, 0.15);
    border-radius: 50%;
    transform: translate(-50%, -50%) scale(0);
    animation: ripple 2s infinite;
}

@keyframes ripple {
    0% { transform: translate(-50%, -50%) scale(0.1); opacity: 1; }
    100% { transform: translate(-50%, -50%) scale(1.5); opacity: 0; }
}

/* ==========================================
   6. Core Sections & Shared Layouts
   ========================================== */
section {
    padding: 100px 0;
    position: relative;
    overflow: hidden; /* Clips all edge-drifting watermarks and glowing blobs to prevent horizontal overflow */
}

.section-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 4.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.section-tagline {
    font-size: 0.82rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    color: var(--primary-light);
    text-transform: uppercase;
}

.section-title {
    font-size: 2.35rem;
    font-weight: 800;
    color: white;
}

.section-desc {
    font-size: 1.05rem;
    color: var(--text-muted);
    line-height: 1.6;
}

/* ==========================================
   7. Service Cards Grid (Overview)
   ========================================== */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.service-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 2.5rem 2rem;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    transition: var(--transition-smooth);
}

.service-card:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-hover);
    transform: translateY(-4px);
    box-shadow: var(--glow-shadow);
}

.service-icon {
    width: 54px;
    height: 54px;
    border-radius: var(--border-radius-sm);
    background: rgba(37, 99, 235, 0.08);
    color: var(--primary-light);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    border: 1px solid rgba(37, 99, 235, 0.2);
    transition: var(--transition-smooth);
}

.service-card:hover .service-icon {
    background: var(--primary);
    color: white;
    transform: scale(1.03);
}

.service-card-title {
    font-size: 1.2rem;
    font-weight: 700;
    color: white;
}

.service-card-desc {
    font-size: 0.92rem;
    color: var(--text-muted);
    line-height: 1.6;
}

/* ==========================================
   8. Unique Features & Interactive Demos
   ========================================== */
.features-section {
    background: rgba(3, 7, 18, 0.4);
}

.features-interactive-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2.5rem;
}

/* Outer Border Gradient Trick */
.border-gradient {
    position: relative;
    border-radius: var(--border-radius-lg);
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    transition: var(--transition-smooth);
    overflow: hidden;
}

.border-gradient:hover {
    border-color: var(--border-hover);
    box-shadow: 0 16px 36px rgba(0,0,0,0.3);
}

/* Feature Item Layouts */
.feature-item-large {
    grid-column: span 2;
    display: grid;
    grid-template-columns: 1.15fr 0.85fr;
    min-height: 380px;
}

.feature-info {
    padding: 3rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 1.2rem;
}

.feature-badge {
    align-self: flex-start;
    font-size: 0.78rem;
    font-weight: 700;
    color: var(--primary-light);
    background: rgba(37, 99, 235, 0.08);
    padding: 0.3rem 0.8rem;
    border-radius: 5px;
    border: 1px solid rgba(37, 99, 235, 0.18);
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
}

.feature-item-title {
    font-size: 1.65rem;
    color: white;
    font-weight: 700;
}

.feature-item-desc {
    font-size: 0.95rem;
    color: var(--text-muted);
}

.feature-bullet-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.7rem;
    margin-top: 0.25rem;
}

.feature-bullet-list li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 0.92rem;
}

.feature-bullet-list i {
    font-size: 1rem;
}

/* Feature Demos containers */
.feature-visual-demo {
    background: rgba(0, 0, 0, 0.2);
    border-left: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    position: relative;
}

/* Feature Demo 1: Security Scanner HUD */
.security-demo {
    padding: 2.5rem;
}

.security-scanner-widget {
    width: 270px;
    background: rgba(6, 9, 20, 0.65);
    border: 1px solid rgba(37, 99, 235, 0.18);
    border-radius: var(--border-radius-md);
    padding: 1.25rem;
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    box-shadow: var(--glass-shadow), 0 0 20px rgba(37, 99, 235, 0.08);
    backdrop-filter: blur(10px);
}

.scanner-laser {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, rgba(37, 99, 235, 0) 0%, rgba(16, 185, 129, 0.9) 50%, rgba(37, 99, 235, 0) 100%);
    box-shadow: 0 0 12px rgba(16, 185, 129, 0.8);
    animation: laser-scan 3.5s infinite ease-in-out;
    z-index: 10;
    pointer-events: none;
}

@keyframes laser-scan {
    0%, 100% { top: 5%; }
    50% { top: 95%; }
}

.scanner-hud {
    position: relative;
    width: 90px;
    height: 90px;
    margin: 0.5rem auto 0.25rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hud-corner {
    position: absolute;
    width: 12px;
    height: 12px;
    border: 2px solid rgba(16, 185, 129, 0.5);
}
.hud-corner.top-left { top: 0; left: 0; border-right: none; border-bottom: none; }
.hud-corner.top-right { top: 0; right: 0; border-left: none; border-bottom: none; }
.hud-corner.bottom-left { bottom: 0; left: 0; border-right: none; border-top: none; }
.hud-corner.bottom-right { bottom: 0; right: 0; border-left: none; border-top: none; }

.hud-core {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hud-lock {
    font-size: 2rem;
    color: var(--success);
    z-index: 2;
    filter: drop-shadow(0 0 8px rgba(16, 185, 129, 0.5));
    animation: lock-subtle-pulse 2s infinite alternate;
}

.hud-pulse-ring {
    position: absolute;
    width: 56px;
    height: 56px;
    border: 2px dashed rgba(16, 185, 129, 0.25);
    border-radius: 50%;
    animation: rotate-dashed 15s linear infinite;
}

@keyframes rotate-dashed {
    100% { transform: rotate(360deg); }
}

@keyframes lock-subtle-pulse {
    0% { transform: scale(0.96); opacity: 0.8; }
    100% { transform: scale(1.04); opacity: 1; }
}

.scanner-data {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    background: rgba(255, 255, 255, 0.01);
    border: 1px solid rgba(255, 255, 255, 0.03);
    border-radius: 8px;
    padding: 0.75rem;
}

.data-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.72rem;
}

.data-lbl {
    color: var(--text-muted);
    font-weight: 500;
}

.data-val {
    font-family: monospace;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.data-badge-secure {
    background: rgba(16, 185, 129, 0.08);
    color: var(--success);
    border: 1px solid rgba(16, 185, 129, 0.25);
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-weight: 700;
    letter-spacing: 0.06em;
    font-size: 0.68rem;
    width: 100%;
    text-align: center;
    box-shadow: 0 0 10px rgba(16, 185, 129, 0.05);
}

/* Feature Demo 2: Timer Delay Table Card */
.timer-demo {
    flex-direction: column;
    gap: 1rem;
}

.demo-table-card {
    width: 250px;
    background: rgba(16, 185, 129, 0.05);
    border: 1px solid rgba(16, 185, 129, 0.25);
    border-radius: var(--border-radius-md);
    padding: 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    transition: all 0.6s ease;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
}

.dt-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.dt-title {
    font-size: 0.85rem;
    font-weight: 700;
}

.dt-status-badge {
    font-size: 0.68rem;
    font-weight: 700;
    padding: 0.15rem 0.5rem;
    border-radius: 4px;
    background: rgba(16, 185, 129, 0.12);
    color: var(--success);
    transition: all 0.6s ease;
}

.dt-body {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.dt-item {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.dt-time-display {
    font-size: 0.9rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 0.35rem;
}

.dt-footer-progress {
    height: 4px;
    background: rgba(255, 255, 255, 0.06);
    border-radius: 10px;
    overflow: hidden;
}

.progress-bar-fill {
    height: 100%;
    width: 10%;
    background-color: var(--success);
    border-radius: 10px;
    transition: width 0.3s ease, background-color 0.6s ease;
}

.color-explanation {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem 1rem;
    justify-content: center;
    margin-top: 0.5rem;
}

.color-explanation span {
    font-size: 0.68rem;
    color: var(--text-muted);
}

.color-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    display: inline-block;
}
.color-dot.green { background-color: var(--success); }
.color-dot.orange { background-color: var(--warning); }
.color-dot.red { background-color: var(--danger); }

.interactive-timer-control {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-top: 0.5rem;
}

#simulation-status {
    font-size: 0.78rem;
    color: var(--text-muted);
    font-weight: 600;
}

/* Feature Demo 3: Call Waiter Button */
.call-waiter-demo {
    padding: 3rem;
}

.garson-caller-btn {
    position: relative;
    width: 130px;
    height: 130px;
    border-radius: 50%;
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    border: none;
    cursor: pointer;
    box-shadow: 0 0 30px rgba(16, 185, 129, 0.3);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    color: white;
    font-weight: 700;
    font-size: 0.85rem;
    transition: var(--transition-smooth);
    z-index: 2;
    outline: none;
}

.garson-caller-btn:hover {
    transform: scale(1.03);
    box-shadow: 0 0 40px rgba(16, 185, 129, 0.5);
}

.garson-caller-btn:active {
    transform: scale(0.96);
}

.garson-caller-btn i {
    font-size: 2rem;
}

.pulse-ring {
    position: absolute;
    top: -4px;
    left: -4px;
    right: -4px;
    bottom: -4px;
    border: 3px solid rgba(16, 185, 129, 0.3);
    border-radius: 50%;
    animation: button-ripple 1.8s infinite;
    pointer-events: none;
}

@keyframes button-ripple {
    0% { transform: scale(0.95); opacity: 1; }
    100% { transform: scale(1.3); opacity: 0; }
}

.animate-wiggle {
    display: inline-block;
}

.garson-caller-btn:hover .animate-wiggle {
    animation: wiggle 0.5s ease-in-out infinite;
}

@keyframes wiggle {
    0%, 100% { transform: rotate(0); }
    25% { transform: rotate(-8deg); }
    75% { transform: rotate(8deg); }
}

.demo-tip {
    font-size: 0.78rem;
    color: var(--text-muted);
}

/* Feature Demo 4: Double Menu Modu Toggle */
.menu-mode-toggles {
    display: flex;
    gap: 0.75rem;
    margin-top: 0.5rem;
}

.mode-toggle-btn {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    color: var(--text-muted);
    border-radius: var(--border-radius-sm);
    padding: 0.45rem 0.9rem;
    font-size: 0.78rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-smooth);
}

.mode-toggle-btn:hover {
    color: var(--text-main);
    background: rgba(255, 255, 255, 0.06);
}

.mode-toggle-btn.active {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.2);
}

.mock-phone-frame {
    width: 170px;
    height: 290px;
    background: #000;
    border-radius: 24px;
    padding: 5px;
    border: 2px solid rgba(255, 255, 255, 0.08);
    box-shadow: var(--glass-shadow);
}

.mock-phone-screen {
    width: 100%;
    height: 100%;
    background: #060912;
    border-radius: 20px;
    overflow: hidden;
    color: white;
    font-size: 0.68rem;
    position: relative;
}

.menu-banner {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    padding: 0.5rem;
    text-align: center;
    font-weight: 700;
    font-size: 0.72rem;
}

.category-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.4rem;
    padding: 0.5rem;
}

.cat-card {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 0.4rem;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.25rem;
    transition: var(--transition-smooth);
}

.cat-card:hover {
    transform: translateY(-1px);
    border-color: rgba(255, 255, 255, 0.12);
}

.cat-img {
    width: 22px;
    height: 22px;
    border-radius: 4px;
    background: rgba(37, 99, 235, 0.1);
    color: var(--primary-light);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.65rem;
}

/* Classic view markup injected by JS */
.classic-menu-list {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
    padding: 0.4rem;
}

.classic-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(255, 255, 255, 0.01);
    border-bottom: 1px solid var(--border-color);
    padding: 0.35rem 0.2rem;
}

.ci-title { font-weight: 600; }
.ci-price { color: var(--primary-light); font-weight: 700; }

.ci-category-header {
    font-size: 0.58rem;
    color: var(--text-muted);
    font-weight: 700;
    text-transform: uppercase;
    margin-top: 0.2rem;
}

/* Medium Features Card */
.feature-item-medium {
    padding: 2.5rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.feature-icon-wrapper {
    width: 46px;
    height: 46px;
    border-radius: var(--border-radius-sm);
    background: rgba(37, 99, 235, 0.08);
    color: var(--primary-light);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.35rem;
    border: 1px solid rgba(37, 99, 235, 0.18);
}

.feature-title {
    font-size: 1.2rem;
    font-weight: 700;
    color: white;
}

.feature-desc {
    font-size: 0.92rem;
    color: var(--text-muted);
    line-height: 1.6;
}

/* ==========================================
   9. ROI Calculator Widget
   ========================================== */
.roi-section {
    background: linear-gradient(180deg, rgba(3,7,18,0) 0%, rgba(15,23,42,0.3) 50%, rgba(3,7,18,0) 100%);
}

.roi-wrapper {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    align-items: center;
    border-radius: var(--border-radius-lg);
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    box-shadow: var(--glass-shadow);
}

.roi-info {
    padding: 4rem;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.roi-tag {
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    color: var(--accent-gold);
}

.roi-title {
    font-size: 2.15rem;
    font-weight: 800;
    color: white;
    line-height: 1.2;
}

.roi-desc {
    font-size: 1rem;
    color: var(--text-muted);
}

.calculator-inputs {
    margin-top: 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.slider-label {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 1rem;
    font-weight: 600;
}

.slider-val {
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--primary-light);
    font-family: var(--font-heading);
}

.premium-slider {
    -webkit-appearance: none;
    width: 100%;
    height: 6px;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.08);
    outline: none;
}

.premium-slider::-webkit-slider-runnable-track {
    width: 100%;
    height: 6px;
    cursor: pointer;
    border-radius: 10px;
}

.premium-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    height: 22px;
    width: 22px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    cursor: pointer;
    margin-top: -8px;
    box-shadow: 0 0 12px var(--primary-glow);
    border: 2px solid white;
    transition: transform 0.1s ease;
}

.premium-slider::-webkit-slider-thumb:hover {
    transform: scale(1.1);
}

.slider-markers {
    display: flex;
    justify-content: space-between;
    font-size: 0.7rem;
    color: var(--text-muted);
}

/* ROI Results Display */
.roi-results-card {
    background: rgba(0, 0, 0, 0.2);
    border-left: 1px solid var(--border-color);
    padding: 4rem;
    display: flex;
    flex-direction: column;
    gap: 2rem;
    height: 100%;
    justify-content: center;
}

.result-box {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
}

.result-label {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
}

.result-value {
    font-family: var(--font-heading);
    font-size: 2.15rem;
    font-weight: 800;
}

.text-gradient {
    background: linear-gradient(135deg, #93c5fd 0%, #3b82f6 50%, #1d4ed8 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.text-gradient-gold {
    background: linear-gradient(135deg, #fbbf24 0%, #d97706 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: 0 0 15px rgba(245,158,11,0.1);
}

.result-box.highlighted {
    border-top: 1px solid var(--border-color);
    padding-top: 1.25rem;
}

.savings-metrics {
    display: flex;
    gap: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.04);
    padding-top: 1.25rem;
}

.metric {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.m-val {
    font-size: 1.05rem;
    font-weight: 700;
    color: white;
    display: flex;
    align-items: center;
    gap: 0.35rem;
}

.m-val i {
    font-size: 0.9rem;
}

.text-success { color: var(--success); }

.m-lbl {
    font-size: 0.72rem;
    color: var(--text-muted);
}

.mt-3 { margin-top: 1rem; }
.mt-4 { margin-top: 1.25rem; }

/* ==========================================
   10. Business Value Cards (Props)
   ========================================== */
.value-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2.5rem;
}

.value-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 3rem 2rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 1.25rem;
    transition: var(--transition-smooth);
}

.value-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-4px);
    box-shadow: var(--glow-shadow);
}

.value-img-wrap {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: rgba(37, 99, 235, 0.08);
    color: var(--primary-light);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    border: 1px solid rgba(37, 99, 235, 0.15);
}

.value-card h3 {
    font-size: 1.2rem;
    font-weight: 700;
    color: white;
}

.value-card p {
    font-size: 0.92rem;
    color: var(--text-muted);
    line-height: 1.6;
}

/* ==========================================
   11. FAQ Accordion Section
   ========================================== */
.faq-section {
    background: rgba(3, 7, 18, 0.4);
}

.faq-accordion-list {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.faq-item {
    background: var(--bg-card);
    transition: var(--transition-smooth);
}

.faq-question {
    width: 100%;
    padding: 1.5rem 2rem;
    background: none;
    border: none;
    color: white;
    font-size: 1.05rem;
    font-weight: 600;
    text-align: left;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
}

.faq-arrow {
    font-size: 0.85rem;
    color: var(--text-muted);
    transition: transform 0.3s ease;
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s cubic-bezier(0.16, 1, 0.3, 1), padding 0.4s ease;
    padding: 0 2rem;
}

.faq-answer p {
    font-size: 0.92rem;
    color: var(--text-muted);
    line-height: 1.65;
    padding-bottom: 1.5rem;
}

/* Active FAQ state */
.faq-item.active .faq-arrow {
    transform: rotate(180deg);
    color: var(--primary-light);
}

.faq-item.active .faq-answer {
    max-height: 300px; /* arbitrary height that easily holds the content */
}

/* ==========================================
   12. Contact Form & Lead Generation
   ========================================== */
.contact-section {
    padding-bottom: 120px;
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 0.90fr 1.10fr;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--glass-shadow);
}

.contact-info-panel {
    background: linear-gradient(135deg, rgba(15, 23, 42, 0.8) 0%, rgba(3, 7, 18, 0.9) 100%);
    padding: 4rem;
    display: flex;
    flex-direction: column;
    gap: 1.75rem;
    justify-content: center;
}

.contact-title {
    font-size: 2.15rem;
    font-weight: 800;
    line-height: 1.25;
}

.contact-desc {
    font-size: 1rem;
    color: var(--text-muted);
    line-height: 1.6;
}

.contact-channels {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin-top: 1rem;
}

.channel-card {
    display: flex;
    align-items: center;
    gap: 1.25rem;
}

.channel-card i {
    width: 44px;
    height: 44px;
    border-radius: var(--border-radius-sm);
    background: rgba(37, 99, 235, 0.08);
    color: var(--primary-light);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.15rem;
    border: 1px solid rgba(37, 99, 235, 0.18);
}

.channel-card div {
    display: flex;
    flex-direction: column;
}

.channel-card span {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.channel-card strong {
    font-size: 0.95rem;
    color: white;
}

/* Contact Form Panel */
.contact-form-panel {
    background: rgba(15, 23, 42, 0.3);
    padding: 4rem;
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.form-title {
    font-size: 1.45rem;
    font-weight: 700;
    color: white;
}

.form-group-row {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.45rem;
    margin-bottom: 1.25rem;
}

.form-group label {
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text-muted);
}

.form-group input, 
.form-group select, 
.form-group textarea {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    padding: 0.7rem 0.95rem;
    color: white;
    font-size: 0.92rem;
    transition: var(--transition-smooth);
}

.form-group input:focus, 
.form-group select:focus, 
.form-group textarea:focus {
    border-color: var(--primary-light);
    background: rgba(255, 255, 255, 0.05);
    box-shadow: 0 0 15px rgba(37, 99, 235, 0.15);
}

.form-group select {
    cursor: pointer;
}

.form-group select option {
    background-color: var(--bg-dark);
    color: white;
}

/* ==========================================
   13. Footer
   ========================================== */
.footer {
    background: #02040a;
    border-top: 1px solid var(--border-color);
    padding: 80px 0 0;
}

.footer-container {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr;
    gap: 4rem;
    padding-bottom: 60px;
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.footer-desc {
    font-size: 0.92rem;
    color: var(--text-muted);
    line-height: 1.6;
    max-width: 380px;
}

.footer-links-group {
    display: flex;
    flex-direction: column;
    gap: 0.9rem;
}

.footer-title {
    font-size: 1.05rem;
    font-weight: 700;
    color: white;
    margin-bottom: 0.4rem;
}

.footer-links-group a {
    font-size: 0.92rem;
    color: var(--text-muted);
}

.footer-links-group a:hover {
    color: white;
    padding-left: 3px;
}

.footer-bottom {
    border-top: 1px solid var(--border-color);
    padding: 2rem 0;
}

.footer-bottom-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.82rem;
    color: var(--text-muted);
}

.social-icons {
    display: flex;
    gap: 1.25rem;
}

.social-icons a {
    font-size: 1.2rem;
    color: var(--text-muted);
}

.social-icons a:hover {
    color: white;
    transform: translateY(-2px);
}

/* ==========================================
   14. Interactive Sound Toasts Notification CSS
   ========================================== */
.toast-container {
    position: fixed;
    top: 90px;
    right: 20px;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    z-index: 9999;
}

.pqr-toast {
    background: rgba(15, 23, 42, 0.9);
    border: 1px solid var(--success);
    border-radius: var(--border-radius-sm);
    padding: 0.95rem 1.4rem;
    box-shadow: 0 12px 36px rgba(0,0,0,0.6);
    display: flex;
    align-items: center;
    gap: 1rem;
    color: white;
    animation: toast-slide-in 0.35s cubic-bezier(0.16, 1, 0.3, 1);
    backdrop-filter: blur(12px);
    width: 320px;
}

@keyframes toast-slide-in {
    0% { transform: translateX(120%); opacity: 0; }
    100% { transform: translateX(0); opacity: 1; }
}

.toast-icon {
    font-size: 1.35rem;
    color: var(--success);
    animation: wiggle 0.5s ease-in-out infinite alternate;
}

.toast-body {
    display: flex;
    flex-direction: column;
    gap: 0.15rem;
    flex-grow: 1;
}

.toast-title {
    font-size: 0.88rem;
    font-weight: 700;
}

.toast-msg {
    font-size: 0.78rem;
    color: var(--text-muted);
}

.toast-close {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 0.85rem;
    transition: var(--transition-smooth);
}

.toast-close:hover {
    color: white;
}

/* ==========================================
   15. Responsive Styling Media Queries
   ========================================== */

/* Large Tablets & Small Desktops */
@media (max-width: 1100px) {
    .hero-container {
        grid-template-columns: 1fr;
        gap: 3rem;
        text-align: center;
    }
    .hero-content {
        align-items: center;
    }
    .hero-subtitle {
        margin: 0 auto;
    }
    .hero-buttons {
        justify-content: center;
    }
    .hero-stats {
        justify-content: center;
        width: 100%;
    }
    .hero-visual {
        height: 480px;
    }
    .scene-wrapper {
        display: flex;
        justify-content: center;
    }
    .main-dashboard {
        left: auto;
    }
    .customer-phone {
        right: auto;
        left: 60%;
    }

    .features-interactive-grid {
        grid-template-columns: 1fr;
    }
    .feature-item-large {
        grid-column: span 1;
    }

    .roi-wrapper {
        grid-template-columns: 1fr;
    }
    .roi-results-card {
        border-left: none;
        border-top: 1px solid var(--border-color);
        padding: 3rem;
    }
    
    .value-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-wrapper {
        grid-template-columns: 1fr;
    }
}

/* Tablets & Mobile */
@media (max-width: 768px) {
    .navbar {
        height: 70px;
    }
    .nav-links {
        display: none;
    }
    .mobile-menu-btn {
        display: block;
    }
    .nav-actions .btn {
        display: none; /* Hide primary desktop header button on mobile to give header breathing room */
    }
    .nav-actions {
        gap: 0;
    }
    .logo-text {
        font-size: 1.3rem; /* slightly compact logo text */
    }

    .hero {
        padding: 100px 0 60px;
    }
    .hero-title {
        font-size: 2.15rem;
    }
    .hero-subtitle {
        font-size: 0.95rem;
    }
    .hero-buttons {
        flex-direction: column; /* Stack vertically to prevent horizontal squishing */
        width: 100%;
        gap: 0.75rem;
        margin-top: 1.5rem;
    }
    .hero-buttons .btn {
        width: 100%;
        text-align: center;
        padding: 0.95rem 1.5rem;
    }
    .hero-visual {
        display: none; /* Hide complex multi-layer hero mockups on small mobile to stay lightweight */
    }

    .feature-item-large {
        grid-template-columns: 1fr;
        min-height: auto;
    }
    .feature-visual-demo {
        border-left: none;
        border-top: 1px solid var(--border-color);
        padding: 2rem 1.25rem;
    }
    .feature-info {
        padding: 1.5rem;
    }

    .roi-info {
        padding: 1.5rem;
    }
    .roi-results-card {
        padding: 1.5rem;
    }
    .contact-info-panel {
        padding: 1.5rem;
    }
    .contact-form-panel {
        padding: 1.5rem;
    }
    .form-group-row {
        grid-template-columns: 1fr;
        gap: 0;
    }

    .footer-container {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }
    .footer-bottom-inner {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
}

/* Extra Small Phones */
@media (max-width: 480px) {
    .hero-title {
        font-size: 1.85rem;
    }
    .section-title {
        font-size: 1.65rem;
    }
    .feature-info, .roi-info, .roi-results-card, .contact-info-panel, .contact-form-panel {
        padding: 1.25rem; /* maximize text width on tiny screens */
    }
    .feature-visual-demo {
        padding: 1.5rem 1rem;
    }
}

/* ==========================================
   15.5. Premium Gold CTA Buttons & Links
   ========================================== */
.btn-accent-gold {
    background: linear-gradient(135deg, var(--accent-gold) 0%, #d97706 100%) !important;
    color: #030712 !important; /* dark slate navy for maximum B2B contrast */
    font-weight: 700 !important;
    box-shadow: 0 4px 15px rgba(245, 158, 11, 0.15) !important;
    border: none !important;
}

.btn-accent-gold:hover {
    transform: translateY(-2px) !important;
    box-shadow: 0 8px 25px rgba(245, 158, 11, 0.35) !important;
    color: #030712 !important;
}

.nav-link-gold {
    color: var(--accent-gold) !important;
    font-weight: 700 !important;
}

.nav-link-gold:hover {
    color: white !important;
}

.nav-link-gold::after {
    background: linear-gradient(90deg, var(--accent-gold), #d97706) !important;
}

/* ==========================================
   16. Animated Floating QR Watermarks
   ========================================== */
.qr-watermark {
    position: absolute;
    width: 140px;
    height: 140px;
    opacity: 0.038; /* Sophisticated metallic glowing watermark visibility */
    pointer-events: none;
    z-index: 0; /* Behind the section contents, above section background container */
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    grid-template-rows: repeat(7, 1fr);
    gap: 4px;
    padding: 8px;
    border: 2.5px solid var(--primary-light);
    border-radius: 12px;
    animation: qr-float 35s infinite alternate ease-in-out;
}

/* Corner Position Detection Patterns in QR Code CSS Grid */
.qr-watermark .pd-pattern {
    border: 2.5px solid var(--primary-light);
    background: transparent;
    position: relative;
    grid-column: span 2;
    grid-row: span 2;
}

.qr-watermark .pd-pattern::after {
    content: '';
    position: absolute;
    top: 2px;
    left: 2px;
    right: 2px;
    bottom: 2px;
    background-color: var(--primary-light);
    border-radius: 1px;
}

/* Standard dot modules in the grid */
.qr-watermark .qr-dot {
    background-color: var(--text-muted);
    border-radius: 1.5px;
}

/* Placements & Speeds */
.qr-wm-1 {
    top: 15%;
    left: 4%;
    animation-duration: 35s;
}

.qr-wm-2 {
    top: 48%;
    right: 3%;
    width: 165px;
    height: 165px;
    animation-duration: 45s;
    animation-delay: -8s;
}

.qr-wm-3 {
    top: 82%;
    left: 3%;
    width: 145px;
    height: 145px;
    animation-duration: 40s;
    animation-delay: -15s;
}

@keyframes qr-float {
    0% {
        transform: translateY(0) rotate(0deg) scale(1);
    }
    50% {
        transform: translateY(-25px) rotate(6deg) scale(1.03);
    }
    100% {
        transform: translateY(12px) rotate(-4deg) scale(0.97);
    }
}