/* ==========================================================================
   SGA-CD - Dark Metallic Blue Design System & Global Styles
   ========================================================================== */

:root {
    /* Color Tokens */
    --color-bg-deep: #070B14;
    --color-surface-card: rgba(13, 20, 36, 0.75);
    --color-surface-solid: #0D1424;
    --color-border-specular: rgba(56, 189, 248, 0.15);
    --color-border-hover: rgba(56, 189, 248, 0.6);
    --color-accent-cyan: #38BDF8;
    --color-accent-glow: rgba(56, 189, 248, 0.35);
    --color-text-primary: #E2E8F0;
    --color-text-muted: #94A3B8;
    --color-focus: #38BDF8;
    --color-secondary-gold: #F59E0B;

    /* Typographic Clamp Scale */
    --font-size-h1: clamp(2.2rem, 5vw, 3.8rem);
    --font-size-h2: clamp(1.75rem, 3.5vw, 2.75rem);
    --font-size-h3: clamp(1.25rem, 2.2vw, 1.75rem);
    --font-size-body: clamp(0.95rem, 1.2vw, 1.1rem);
    --font-size-small: clamp(0.8rem, 1vw, 0.95rem);

    /* Hardware Layer Shadows */
    --shadow-card-default: 0 10px 30px -10px rgba(0, 0, 0, 0.8), 0 0 0 1px var(--color-border-specular);
    --shadow-card-hover: 0 20px 40px -15px rgba(0, 0, 0, 0.9), 0 0 25px var(--color-accent-glow), 0 0 0 1px var(--color-border-hover);
    --shadow-desktop-hardware: 0 25px 50px -12px rgba(0, 0, 0, 0.85), inset 0 1px 1px rgba(255, 255, 255, 0.05);
}

/* Reset & Base HTML */
html, body {
    width: 100%;
    min-height: 100vh;
    overflow-x: hidden;
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    background-color: var(--color-bg-deep);
    color: var(--color-text-primary);
    font-family: 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, Roboto, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

*, *:before, *:after {
    box-sizing: inherit;
}

/* WCAG 2.2 AA Focus Visible Indicator */
:focus-visible {
    outline: 3px solid var(--color-focus) !important;
    outline-offset: 3px !important;
}

/* WCAG Target Size Constraints */
button, a.cta-button, a.plan-button, input, select, textarea, .faq-question, .ui-icon-btn {
    min-height: 44px;
    min-width: 44px;
}

/* Vector UI Icons System (60-30-10 Dark Metallic Rule) */
.ui-icon-svg {
    width: 22px;
    height: 22px;
    stroke: var(--color-text-muted);
    fill: none;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
    transition: stroke 0.3s cubic-bezier(0.16, 1, 0.3, 1), fill 0.3s cubic-bezier(0.16, 1, 0.3, 1), transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    will-change: transform, stroke, fill;
}

.ui-icon-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.5rem;
    border-radius: 10px;
    background: rgba(13, 20, 36, 0.6);
    border: 1px solid var(--color-border-specular);
    color: var(--color-text-muted);
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
}

.ui-icon-btn:hover,
.ui-icon-btn:focus-visible,
.ui-icon-btn.active {
    background: rgba(56, 189, 248, 0.12);
    border-color: var(--color-accent-cyan);
    box-shadow: 0 0 15px rgba(56, 189, 248, 0.25);
}

.ui-icon-btn:hover .ui-icon-svg,
.ui-icon-btn:focus-visible .ui-icon-svg,
.ui-icon-btn.active .ui-icon-svg {
    stroke: var(--color-accent-cyan);
    fill: rgba(56, 189, 248, 0.2);
    transform: scale(1.12);
}

.nav-icon-link {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    color: var(--color-text-muted);
    text-decoration: none;
    font-weight: 600;
    font-size: var(--font-size-small);
    transition: color 0.3s ease;
}

.nav-icon-link:hover .ui-icon-svg,
.nav-icon-link:focus-visible .ui-icon-svg {
    stroke: var(--color-accent-cyan);
    fill: rgba(56, 189, 248, 0.2);
    transform: scale(1.1);
}

/* Card Utility Action Group */
.card-actions-group {
    display: flex;
    gap: 0.5rem;
    align-items: center;
    margin-top: 1rem;
    padding-top: 0.75rem;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.floating-social-bar {
    position: fixed;
    left: 20px;
    bottom: 25px;
    z-index: 999;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    background: rgba(13, 20, 36, 0.85);
    backdrop-filter: blur(12px);
    border: 1px solid var(--color-border-specular);
    border-radius: 30px;
    padding: 0.5rem;
    box-shadow: var(--shadow-desktop-hardware);
}

/* Accessibility SR Only Utility */
.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;
}

/* Motion Reduction Support */
@media (prefers-reduced-motion: reduce) {
    *, ::before, ::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* Screen Clamped Desktop Container */
.site-wrapper, main {
    width: 100%;
    max-width: 1440px;
    margin: 0 auto;
}

/* Header Styles */
header[role="banner"] {
    background: rgba(13, 20, 36, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border-specular);
    padding: 1rem 2rem;
    position: sticky;
    top: 0;
    z-index: 1000;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

header h1 {
    margin: 0;
    font-size: var(--font-size-h3);
    font-weight: 800;
    background: linear-gradient(135deg, #FFFFFF 0%, var(--color-accent-cyan) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: -0.02em;
}

header nav {
    display: flex;
    gap: 1.5rem;
    align-items: center;
}

header nav a {
    color: var(--color-text-muted);
    text-decoration: none;
    font-weight: 600;
    font-size: var(--font-size-small);
    transition: color 0.3s ease, transform 0.3s ease;
    will-change: transform;
}

header nav a:hover, header nav a:focus {
    color: var(--color-accent-cyan);
    transform: translate3d(0, -2px, 0);
}

/* Sections & Typography */
section {
    padding: 5rem 2rem;
    position: relative;
}

section h2 {
    font-size: var(--font-size-h2);
    font-weight: 700;
    margin-bottom: 1rem;
    text-align: center;
    color: var(--color-text-primary);
    letter-spacing: -0.02em;
}

section p.section-subtitle {
    text-align: center;
    color: var(--color-text-muted);
    font-size: var(--font-size-body);
    max-width: 750px;
    margin: 0 auto 3rem auto;
}

p {
    color: var(--color-text-muted);
    font-size: var(--font-size-body);
}

/* Bento Grid Layout System */
.bento-grid, .features-grid, .pricing-grid, .monitor-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.75rem;
    margin-top: 2.5rem;
}

/* Skeleton Loaders for Zero-CLS Loading */
.skeleton-card {
    background: linear-gradient(90deg, rgba(13, 20, 36, 0.8) 25%, rgba(56, 189, 248, 0.08) 50%, rgba(13, 20, 36, 0.8) 75%);
    background-size: 200% 100%;
    animation: skeleton-shimmer 1.8s infinite;
    border-radius: 16px;
    min-height: 220px;
    border: 1px solid var(--color-border-specular);
}

@keyframes skeleton-shimmer {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* Dynamic Live Monitor Filter Tabs */
.filter-tabs {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.filter-btn {
    background: rgba(13, 20, 36, 0.8);
    border: 1px solid var(--color-border-specular);
    color: var(--color-text-muted);
    padding: 0.6rem 1.5rem;
    border-radius: 20px;
    font-weight: 600;
    font-size: var(--font-size-small);
    cursor: pointer;
    transition: all 0.3s ease;
}

.filter-btn:hover, .filter-btn.active {
    background: var(--color-accent-cyan);
    color: #070B14;
    border-color: var(--color-accent-cyan);
    box-shadow: 0 0 15px var(--color-accent-glow);
}

/* Layered Anodized Dark Metal Background Extensions */
.bg-anodized-panel, .glass-panel, .feature-card, .stat-card, .plan-card, .monitor-card {
    background-image:
        radial-gradient(ellipse at top left, rgba(56, 189, 248, 0.08) 0%, transparent 60%),
        linear-gradient(180deg, rgba(13, 20, 36, 0.85) 0%, rgba(7, 11, 20, 0.95) 100%);
    background-position: center center;
    background-size: cover;
    background-repeat: no-repeat;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--color-border-specular);
    border-radius: 16px;
    padding: 2rem;
    box-shadow: var(--shadow-card-default);
    transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.35s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.35s ease;
    will-change: transform;
    position: relative;
    overflow: hidden;
}

.feature-card:hover, .plan-card:hover, .glass-panel:hover, .stat-card:hover {
    transform: translate3d(0, -6px, 0);
    box-shadow: var(--shadow-card-hover);
    border-color: var(--color-border-hover);
}

.feature-card h3, .plan-card h3 {
    font-size: var(--font-size-h3);
    color: var(--color-text-primary);
    margin-top: 0.5rem;
    margin-bottom: 0.75rem;
}

.feature-card i {
    font-size: 2.2rem;
    color: var(--color-accent-cyan);
    margin-bottom: 1rem;
    display: inline-block;
}

/* Hero Section High Conversion Styling */
#hero {
    min-height: 80vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 6rem 2rem 4rem 2rem;
    background: radial-gradient(circle at 50% 20%, rgba(56, 189, 248, 0.12) 0%, rgba(7, 11, 20, 0) 70%);
}

.hero-title {
    font-size: var(--font-size-h1);
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 1.5rem;
    background: linear-gradient(180deg, #FFFFFF 0%, #CBD5E1 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-highlight {
    background: linear-gradient(135deg, var(--color-accent-cyan) 0%, #0284C7 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-tagline {
    font-size: clamp(1.1rem, 2vw, 1.35rem);
    color: var(--color-text-muted);
    max-width: 800px;
    margin: 0 auto 2.5rem auto;
}

/* Stats Counter Grid */
.hero-stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    width: 100%;
    max-width: 1000px;
    margin: 3rem auto 0 auto;
}

.stat-number {
    font-size: clamp(2.5rem, 4vw, 3.5rem);
    font-weight: 800;
    color: var(--color-accent-cyan);
    line-height: 1;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: var(--font-size-small);
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 600;
}

/* Login & Authentication Forms Styling */
#login-form {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    width: 100%;
    margin-top: 1.5rem;
}

#login-form input[type="text"],
#login-form input[type="password"],
#login-form input[type="email"] {
    display: block;
    width: 100%;
    min-height: 48px;
    padding: 0.75rem 1rem;
    background: #070B14;
    border: 1px solid var(--color-border-specular);
    border-radius: 10px;
    color: var(--color-text-primary);
    font-size: 0.95rem;
    box-sizing: border-box;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

#login-form input:focus {
    border-color: var(--color-accent-cyan);
    box-shadow: 0 0 12px var(--color-accent-glow);
    outline: none !important;
}

/* Call to Action Buttons */
.cta-button, .plan-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.9rem 2.2rem;
    background: linear-gradient(135deg, var(--color-accent-cyan) 0%, #0284C7 100%);
    color: #070B14;
    text-decoration: none;
    border-radius: 10px;
    font-weight: 700;
    font-size: 1rem;
    border: none;
    cursor: pointer;
    box-shadow: 0 4px 14px rgba(56, 189, 248, 0.3);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    will-change: transform;
}

.cta-button:hover, .plan-button:hover {
    transform: translate3d(0, -3px, 0);
    box-shadow: 0 8px 25px rgba(56, 189, 248, 0.5);
}

/* Pricing Section Details */
.plan-card .price {
    font-size: clamp(2rem, 3.5vw, 2.75rem);
    font-weight: 800;
    color: var(--color-accent-cyan);
    margin: 1rem 0 0.25rem 0;
}

.plan-card.recommended {
    border: 1px solid var(--color-accent-cyan);
    box-shadow: 0 0 30px rgba(56, 189, 248, 0.25);
}

.recommended-badge {
    position: absolute;
    top: 20px;
    right: -32px;
    background: var(--color-accent-cyan);
    color: #070B14;
    padding: 4px 35px;
    transform: rotate(45deg);
    font-weight: 800;
    font-size: 0.75rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.plan-card ul {
    list-style: none;
    padding: 0;
    margin: 1.5rem 0;
    text-align: left;
}

.plan-card ul li {
    padding: 0.6rem 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    color: var(--color-text-primary);
    font-size: var(--font-size-small);
}

/* FAQ Accordion */
.faq-container {
    max-width: 850px;
    margin: 2rem auto;
}

.faq-item {
    margin-bottom: 1rem;
    background: var(--color-surface-card);
    border: 1px solid var(--color-border-specular);
    border-radius: 12px;
    overflow: hidden;
}

.faq-question {
    width: 100%;
    background: none;
    border: none;
    text-align: left;
    font-size: 1.1rem;
    font-weight: 600;
    padding: 1.25rem 1.5rem;
    cursor: pointer;
    color: var(--color-text-primary);
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: color 0.3s ease;
}

.faq-question:hover {
    color: var(--color-accent-cyan);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s cubic-bezier(0, 1, 0, 1);
    background: rgba(7, 11, 20, 0.4);
}

.faq-answer p {
    padding: 0 1.5rem 1.25rem 1.5rem;
    margin: 0;
}

/* Video Frame Container & Pointer Shield Overlay */
.video-container {
    position: relative;
    max-width: 900px;
    margin: 2rem auto;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow-desktop-hardware);
    border: 1px solid var(--color-border-specular);
    aspect-ratio: 16 / 9;
}

.video-pointer-shield {
    pointer-events: none;
    user-select: none;
}

.video-container iframe {
    width: 100%;
    height: 100%;
    border: none;
}

/* GPU-Bound GSAP Carousel Styles */
.carousel-wrapper {
    position: relative;
    max-width: 1100px;
    margin: 2rem auto;
    overflow: hidden;
    padding: 1rem 3.5rem;
}

.carousel-track {
    display: flex;
    gap: 1.5rem;
    will-change: transform;
}

.carousel-slide {
    flex: 0 0 100%;
    max-width: 100%;
    background: var(--color-surface-card);
    border: 1px solid var(--color-border-specular);
    border-radius: 16px;
    padding: 2.5rem;
    backdrop-filter: blur(12px);
    box-shadow: var(--shadow-card-default);
    will-change: transform, opacity;
}

@media (min-width: 768px) {
    .carousel-slide {
        flex: 0 0 calc(50% - 0.75rem);
        max-width: calc(50% - 0.75rem);
    }
}

.carousel-control {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(13, 20, 36, 0.95);
    border: 1px solid var(--color-accent-cyan);
    color: var(--color-accent-cyan);
    width: 44px;
    height: 44px;
    border-radius: 50%;
    cursor: pointer;
    z-index: 10;
    display: flex;
    justify-content: center;
    align-items: center;
    box-shadow: 0 0 15px rgba(56, 189, 248, 0.3);
    transition: transform 0.3s ease, background 0.3s ease;
}

#carousel-prev { left: 5px; }
#carousel-next { right: 5px; }

.carousel-control:hover {
    background: var(--color-accent-cyan);
    color: #070B14;
    transform: translateY(-50%) scale(1.1);
}

/* Partners & Testimonials Logo Grid */
.partners-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 2rem;
    align-items: center;
    margin-top: 2rem;
}

.partner-logo {
    background: rgba(13, 20, 36, 0.6);
    border: 1px solid var(--color-border-specular);
    border-radius: 12px;
    padding: 1.25rem 2rem;
    text-align: center;
    transition: transform 0.3s ease, border-color 0.3s ease;
    will-change: transform;
}

.partner-logo:hover {
    transform: translate3d(0, -4px, 0);
    border-color: var(--color-accent-cyan);
}

.partner-logo img {
    max-height: 45px;
    filter: brightness(0.9) contract(1.1);
}

/* Footer Styles */
footer#main-footer {
    background: #05080F;
    border-top: 1px solid var(--color-border-specular);
    padding: 3rem 2rem 2rem 2rem;
    margin-top: 4rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 2.5rem;
    max-width: 1200px;
    margin: 0 auto;
}

.footer-section h4 {
    color: var(--color-accent-cyan);
    margin-top: 0;
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.footer-section h5 {
    color: var(--color-text-primary);
    margin-top: 1rem;
    margin-bottom: 0.25rem;
}

.footer-section a {
    color: var(--color-text-muted);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section a:hover {
    color: var(--color-accent-cyan);
}

.footer-copy {
    text-align: center;
    margin-top: 3rem;
    padding-top: 1.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    color: var(--color-text-muted);
    font-size: 0.85rem;
}

/* AI Sales Agent Floating Widget */
#ai-agent-widget {
    position: fixed;
    bottom: 25px;
    right: 25px;
    z-index: 1001;
}

#ai-agent-toggle {
    background: linear-gradient(135deg, var(--color-accent-cyan) 0%, #0284C7 100%);
    color: #070B14;
    border: none;
    border-radius: 50%;
    width: 60px;
    height: 60px;
    font-size: 1.8rem;
    cursor: pointer;
    box-shadow: 0 6px 20px rgba(56, 189, 248, 0.4);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    will-change: transform;
    display: flex;
    justify-content: center;
    align-items: center;
}

#ai-agent-toggle:hover {
    transform: translate3d(0, -3px, 0) scale(1.05);
    box-shadow: 0 10px 28px rgba(56, 189, 248, 0.6);
}

#ai-agent-chatbox {
    position: absolute;
    bottom: 75px;
    right: 0;
    width: 360px;
    background: #0D1424;
    border: 1px solid var(--color-border-hover);
    border-radius: 16px;
    box-shadow: var(--shadow-desktop-hardware);
    overflow: hidden;
    transition: opacity 0.3s ease, transform 0.3s ease;
    will-change: transform, opacity;
}

#ai-agent-chatbox.hidden {
    opacity: 0;
    transform: translate3d(0, 15px, 0);
    pointer-events: none;
}

#chatbox-header {
    background: rgba(56, 189, 248, 0.12);
    border-bottom: 1px solid var(--color-border-specular);
    padding: 1rem;
    color: var(--color-text-primary);
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

#chatbox-messages {
    height: 280px;
    padding: 1rem;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.chat-message {
    padding: 0.75rem 1rem;
    border-radius: 12px;
    max-width: 85%;
    font-size: 0.9rem;
    line-height: 1.45;
}

.chat-message.agent-message {
    background: rgba(255, 255, 255, 0.06);
    color: var(--color-text-primary);
    align-self: flex-start;
    border: 1px solid var(--color-border-specular);
}

.chat-message.user-message {
    background: linear-gradient(135deg, var(--color-accent-cyan) 0%, #0284C7 100%);
    color: #070B14;
    align-self: flex-end;
    font-weight: 600;
}

#chatbox-input-container {
    display: flex;
    padding: 0.75rem;
    border-top: 1px solid var(--color-border-specular);
    background: rgba(7, 11, 20, 0.6);
    gap: 0.5rem;
}

#chatbox-input {
    flex: 1;
    background: #070B14;
    border: 1px solid var(--color-border-specular);
    border-radius: 8px;
    color: var(--color-text-primary);
    padding: 0.5rem 0.85rem;
    font-size: 0.9rem;
}

#chatbox-input:focus {
    border-color: var(--color-accent-cyan);
    outline: none;
}

#chatbox-send {
    background: var(--color-accent-cyan);
    color: #070B14;
    border: none;
    border-radius: 8px;
    padding: 0 1rem;
    font-weight: 700;
    cursor: pointer;
}

/* Responsive Viewports */
@media (max-width: 375px) {
    header[role="banner"] {
        padding: 0.75rem 1rem;
    }
    header nav {
        display: none; /* Accessible mobile drawer / menu in PWA */
    }
    section {
        padding: 3rem 1rem;
    }
    #ai-agent-chatbox {
        width: 310px;
    }
}

@media (min-width: 376px) and (max-width: 768px) {
    section {
        padding: 4rem 1.5rem;
    }
    header nav {
        gap: 0.85rem;
    }
}

@media (min-width: 769px) and (max-width: 1024px) {
    .bento-grid, .features-grid, .pricing-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1025px) {
    .site-wrapper, main {
        max-width: 1440px;
    }
}