/* =========================================
   DESIGN SYSTEM & RESET
   ========================================= */
:root {
    /* Colors */
    --bg-dark: #050505;
    --bg-card: #0A0A0A;
    --bg-card-hover: #111111;
    --border-color: #222;
    --border-hover: #333;

    --text-primary: #EDEDED;
    --text-secondary: #A1A1A1;
    --text-muted: #666;

    --accent-primary: #00E5FF;
    --accent-glow: rgba(0, 229, 255, 0.4);
    --accent-dark: #00B2CC;

    --danger: #FF4D4D;
    --warning: #FFC107;
    --success: #00E5FF;
    /* Using cyan as success for this theme or maybe green? kept cyan for now */

    /* Typography */
    --font-family: 'Inter', system-ui, -apple-system, sans-serif;
    --font-size-base: 16px;
    --line-height-base: 1.5;

    /* Spacing */
    --container-width: 1200px;
    --spacing-xs: 0.5rem;
    /* 8px */
    --spacing-sm: 1rem;
    /* 16px */
    --spacing-md: 2rem;
    /* 32px */
    --spacing-lg: 4rem;
    /* 64px */
    --spacing-xl: 8rem;
    /* 128px */
}

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

body {
    background-color: var(--bg-dark);
    color: var(--text-primary);
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: var(--line-height-base);
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
    transition: color 0.2s ease;
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    display: block;
}

/* =========================================
   UTILITIES
   ========================================= */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
}

.text-gradient {
    background: linear-gradient(135deg, #FFF 0%, var(--accent-primary) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 24px;
    border-radius: 6px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    border: 1px solid transparent;
}

.btn-primary {
    background-color: var(--accent-primary);
    color: #000;
    font-weight: 600;
    box-shadow: 0 0 15px rgba(0, 229, 255, 0.2);
}

.btn-primary:hover {
    background-color: #33FFFF;
    box-shadow: 0 0 25px rgba(0, 229, 255, 0.4);
    transform: translateY(-1px);
}

.btn-sm {
    padding: 8px 16px;
    font-size: 0.9rem;
}

/* =========================================
   NAVBAR
   ========================================= */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(5, 5, 5, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    height: 70px;
    display: flex;
    align-items: center;
}

.nav-container {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 600;
    font-size: 1.1rem;
}

.logo-icon {
    width: 24px;
    height: 24px;
    background: var(--accent-primary);
    color: #000;
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 14px;
}

.nav-links {
    display: flex;
    gap: 32px;
}

.nav-links a {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.nav-links a:hover {
    color: var(--text-primary);
}

/* =========================================
   HERO SECTION
   ========================================= */
.hero-section {
    padding-top: 160px;
    padding-bottom: 100px;
    background: radial-gradient(circle at 50% 0%, rgba(0, 229, 255, 0.08) 0%, rgba(5, 5, 5, 0) 50%);
    position: relative;
    overflow: hidden;
}

.hero-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 80px auto;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 24px;
    letter-spacing: -0.02em;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 40px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-cta {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}

.trust-text {
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* =========================================
   HERO VISUAL (ARCH DIAGRAM)
   ========================================= */
.hero-visual {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    max-width: 1000px;
    margin: 0 auto;
    perspective: 1000px;
}

.card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 24px;
    position: relative;
    transition: transform 0.3s ease, border-color 0.3s ease;
}

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

.window-header {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 24px;
}

.dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: #333;
}

.dot:nth-child(1) {
    background-color: #FF5F56;
}

/* Red */
.dot:nth-child(2) {
    background-color: #FFBD2E;
}

/* Yellow */
.dot:nth-child(3) {
    background-color: #27C93F;
}

/* Green */

.window-title {
    font-family: monospace;
    color: var(--text-muted);
    font-size: 12px;
    margin-left: 12px;
}

/* Diagram Styles */
.diagram-flow,
.diagram-row {
    display: flex;
    align-items: center;
    gap: 16px;
    justify-content: center;
}

.diagram-flow-secondary {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    /* Align with Backend API roughly */
    margin-left: 140px;
    /* Hacky alignment for demo */
}

.line-down {
    width: 2px;
    height: 30px;
    background: #333;
    margin-left: 50%;
    /* Center relative to container */
    margin-bottom: 8px;
}

.node {
    padding: 8px 16px;
    border-radius: 6px;
    font-family: monospace;
    font-size: 0.9rem;
    border: 1px solid #333;
    background: #111;
    color: #ccc;
}

.node.backend {
    border-color: var(--accent-dark);
    color: var(--accent-primary);
    box-shadow: 0 0 10px rgba(0, 229, 255, 0.1);
}

.node.db {
    border-color: #F4B400;
    color: #F4B400;
}

.arrow {
    color: #444;
    font-family: monospace;
}

/* Analysis Panel */
.analysis-panel {
    border-color: var(--border-color);
    background: rgba(10, 10, 10, 0.8);
    backdrop-filter: blur(10px);
}

.section-label {
    font-size: 0.8rem;
    color: var(--accent-primary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 700;
    margin-bottom: 24px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.status-dot {
    width: 8px;
    height: 8px;
    background: var(--accent-primary);
    border-radius: 50%;
    box-shadow: 0 0 8px var(--accent-primary);
}

.metric-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
    font-size: 0.95rem;
    color: var(--text-secondary);
}

.confidence-score {
    color: #FFF;
    font-weight: 700;
    font-size: 1.2rem;
}

.progress-bar {
    width: 100%;
    height: 6px;
    background: #222;
    border-radius: 3px;
    margin-bottom: 24px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: var(--accent-primary);
    border-radius: 3px;
    box-shadow: 0 0 10px rgba(0, 229, 255, 0.5);
}

.alert-box {
    padding: 16px;
    border-radius: 8px;
    margin-bottom: 12px;
    font-size: 0.9rem;
    display: flex;
    gap: 12px;
    align-items: flex-start;
}

.alert-box.warning {
    background: rgba(255, 193, 7, 0.05);
    /* very subtle yellow */
    border: 1px solid rgba(255, 193, 7, 0.1);
}

.alert-box.warning .alert-icon {
    color: #FFC107;
}

.alert-box.suggestion {
    background: rgba(0, 229, 255, 0.05);
    border: 1px solid rgba(0, 229, 255, 0.1);
}

.alert-box.suggestion .alert-icon {
    color: var(--accent-primary);
}

.alert-content strong {
    display: block;
    color: #FFF;
    margin-bottom: 4px;
}

.alert-content p {
    color: var(--text-secondary);
    font-size: 0.85rem;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }

    .hero-visual {
        grid-template-columns: 1fr;
    }

    .nav-links {
        display: none;
        /* Hide for now on mobile, add burger later if needed */
    }
}

/* =========================================
   SECTIONS COMMON
   ========================================= */
.section {
    padding: 100px 0;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 60px;
    color: #FFF;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto 60px;
}

.text-center {
    text-align: center;
}

/* =========================================
   PROBLEM SECTION
   ========================================= */
.problem-section {
    background-color: var(--bg-dark);
}

.grid-4 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 24px;
}

.problem-card {
    background: rgba(255, 77, 77, 0.03);
    border: 1px solid rgba(255, 77, 77, 0.1);
    padding: 32px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    gap: 20px;
    transition: transform 0.2s ease;
}

.problem-card:hover {
    transform: translateY(-5px);
    border-color: rgba(255, 77, 77, 0.3);
}

.icon-box.danger {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255, 77, 77, 0.1);
    color: var(--danger);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    flex-shrink: 0;
}

.problem-card h3 {
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-primary);
}

/* =========================================
   SOLUTION SECTION
   ========================================= */
.solution-section {
    background: linear-gradient(180deg, var(--bg-dark) 0%, #080808 100%);
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
}

.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 40px;
    border-radius: 12px;
    transition: all 0.3s ease;
}

.feature-card:hover {
    border-color: var(--accent-primary);
    box-shadow: 0 0 30px rgba(0, 229, 255, 0.05);
}

.feature-icon {
    font-size: 2rem;
    margin-bottom: 24px;
    display: inline-block;
    padding: 12px;
    margin: 0 auto 20px;
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-primary);
    transition: all 0.3s ease;
}

.feature-icon svg {
    width: 24px;
    height: 24px;
}

.feature-card:hover .feature-icon {
    border-color: var(--accent-primary);
    background: rgba(0, 229, 255, 0.05);
    transform: scale(1.1);
    box-shadow: 0 0 15px rgba(0, 229, 255, 0.2);
}

.feature-card h3 {
    font-size: 1.1rem;
    margin-bottom: 0;
}

/* =========================================
   EMOJI TRANSPARENCY
   ========================================= */
.icon-box.danger,
.step-icon,
.alert-icon {
    opacity: 0.7;
    filter: grayscale(0.5);
    transition: all 0.3s ease;
}

.problem-card:hover .icon-box.danger,
.step-item:hover .step-icon {
    opacity: 1;
    filter: grayscale(0);
}

/* =========================================
   HOW IT WORKS SECTION
   ========================================= */
.how-it-works-section {
    background-color: var(--bg-dark);
}

.steps-container {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    max-width: 1000px;
    margin: 0 auto;
    position: relative;
    padding-top: 40px;
}

.step-item {
    flex: 1;
    text-align: center;
    padding: 0 20px;
    position: relative;
    z-index: 2;
}

.step-number {
    position: absolute;
    top: -50px;
    right: 20px;
    font-size: 4rem;
    font-weight: 800;
    color: rgba(255, 255, 255, 0.03);
    z-index: -1;
}

.step-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 24px;
    background: transparent;
    /* Made transparent as per request */
    border: 1px solid var(--border-color);
    /* Or maybe var(--accent-primary) with low opacity? kept border-color for now */
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-primary);
    position: relative;
    /* Removed opacity/filter to let the crisp SVG shine */
    transition: all 0.3s ease;
}

.step-icon svg {
    width: 32px;
    height: 32px;
}

.step-item:hover .step-icon {
    border-color: var(--accent-primary);
    box-shadow: 0 0 15px rgba(0, 229, 255, 0.2);
    transform: translateY(-5px);
    background: rgba(0, 229, 255, 0.05);
}

.step-item:nth-child(1) .step-icon::after {
    content: "01";
    position: absolute;
    top: -10px;
    right: -10px;
    background: var(--bg-dark);
    border: 1px solid var(--accent-primary);
    color: var(--accent-primary);
    font-size: 0.8rem;
    padding: 2px 6px;
    border-radius: 4px;
}

.step-item:nth-child(3) .step-icon::after {
    content: "02";
    position: absolute;
    top: -10px;
    right: -10px;
    background: var(--bg-dark);
    border: 1px solid var(--accent-primary);
    color: var(--accent-primary);
    font-size: 0.8rem;
    padding: 2px 6px;
    border-radius: 4px;
}

.step-item:nth-child(5) .step-icon::after {
    content: "03";
    position: absolute;
    top: -10px;
    right: -10px;
    background: var(--bg-dark);
    border: 1px solid var(--accent-primary);
    color: var(--accent-primary);
    font-size: 0.8rem;
    padding: 2px 6px;
    border-radius: 4px;
}


.step-connector {
    flex: 1;
    height: 1px;
    background: linear-gradient(90deg, rgba(0, 229, 255, 0) 0%, rgba(0, 229, 255, 0.3) 50%, rgba(0, 229, 255, 0) 100%);
    margin-top: 40px;
    transform: translateY(50%);
}

.step-item h3 {
    margin-bottom: 12px;
    font-size: 1.1rem;
}

.step-item p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

@media (max-width: 768px) {
    .steps-container {
        flex-direction: column;
        gap: 40px;
    }

    .step-connector {
        display: none;
    }
}

/* =========================================
   PRICING SECTION
   ========================================= */
.pricing-section {
    background: linear-gradient(180deg, #080808 0%, var(--bg-dark) 100%);
}

.pricing-header .badge {
    background: rgba(0, 229, 255, 0.1);
    color: var(--accent-primary);
    font-size: 0.8rem;
    padding: 4px 12px;
    border-radius: 20px;
    vertical-align: middle;
    margin-left: 12px;
    border: 1px solid rgba(0, 229, 255, 0.2);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.pricing-grid {
    align-items: center;
    /* Align cards vertically */
}

.pricing-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 32px;
    border-radius: 12px;
    position: relative;
    display: flex;
    flex-direction: column;
}

.pricing-card.featured {
    border-color: var(--accent-primary);
    background: rgba(10, 10, 10, 0.9);
    transform: scale(1.05);
    z-index: 2;
    box-shadow: 0 0 40px rgba(0, 0, 0, 0.5);
}

.popular-tag {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--accent-primary);
    color: #000;
    font-size: 0.75rem;
    font-weight: 700;
    padding: 4px 12px;
    border-radius: 20px;
    text-transform: uppercase;
}

.pricing-tier {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 12px;
}

.pricing-card.featured .pricing-tier {
    color: var(--accent-primary);
}

.pricing-price {
    font-size: 2.5rem;
    font-weight: 700;
    color: #FFF;
    margin-bottom: 24px;
}

.pricing-price span {
    font-size: 1rem;
    font-weight: 400;
    color: var(--text-muted);
}

.pricing-features {
    margin-bottom: 32px;
    flex: 1;
}

.pricing-features li {
    margin-bottom: 12px;
    color: var(--text-secondary);
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    gap: 8px;
}

.pricing-features li::before {
    content: "✓";
    color: var(--accent-primary);
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--border-color);
    color: #FFF;
}

.btn-outline:hover {
    border-color: #FFF;
    background: rgba(255, 255, 255, 0.05);
}

.full-width {
    width: 100%;
}

/* =========================================
   FOUNDER SECTION
   ========================================= */
.founder-section {
    padding: 80px 0;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-card);
}

.founder-quote {
    font-size: 1.5rem;
    color: var(--text-primary);
    max-width: 800px;
    margin: 0 auto;
    font-style: italic;
    font-weight: 300;
    line-height: 1.6;
}

/* =========================================
   FAQ SECTION
   ========================================= */
.faq-section {
    background-color: var(--bg-dark);
}

.faq-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 40px;
    max-width: 1000px;
    margin: 0 auto;
}

.faq-item {
    padding: 24px;
    background: rgba(255, 255, 255, 0.02);
    border-radius: 8px;
    border: 1px solid transparent;
    transition: background 0.2s ease;
}

.faq-item:hover {
    background: rgba(255, 255, 255, 0.04);
}

.faq-item h3 {
    font-size: 1.1rem;
    color: #FFF;
    margin-bottom: 12px;
}

.faq-item p {
    color: var(--text-secondary);
    line-height: 1.6;
    font-size: 0.95rem;
}

/* =========================================
   FINAL CTA & FOOTER
   ========================================= */
.cta-section {
    padding: 120px 0 80px;
    background: radial-gradient(circle at 50% 100%, rgba(0, 229, 255, 0.05) 0%, rgba(5, 5, 5, 0) 50%);
}

.cta-form {
    display: flex;
    justify-content: center;
    gap: 12px;
    max-width: 500px;
    margin: 0 auto 40px;
    flex-wrap: wrap;
    /* Allow wrapping for error messages */
}

.form-message {
    width: 100%;
    display: none;
    text-align: center;
}

.cta-form input {
    flex: 1;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 12px 16px;
    border-radius: 6px;
    color: #FFF;
    outline: none;
    transition: border-color 0.2s ease;
}

.cta-form input:focus {
    border-color: var(--accent-primary);
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 32px;
    margin-top: 40px;
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 24px;
    margin-top: 40px;
}

.social-links a {
    color: var(--text-muted);
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid transparent;
}

.social-icon {
    width: 20px;
    height: 20px;
    fill: currentColor;
    transition: transform 0.3s ease;
}

.social-links a:hover {
    color: #FFF;
    background: var(--bg-card);
    border-color: var(--accent-primary);
    transform: translateY(-5px);
    box-shadow: 0 5px 15px rgba(0, 229, 255, 0.2);
}

.social-links a:hover .social-icon {
    transform: scale(1.1);
}

.footer {
    padding: 40px 0;
    text-align: center;
    border-top: 1px solid #111;
    color: #444;
    font-size: 0.85rem;
}

@media (max-width: 768px) {
    .cta-form {
        flex-direction: column;
    }

    .pricing-card.featured {
        transform: scale(1);
    }
}