/* ===================================
   EPM Agent - Brand Styles
   =================================== */

/* CSS Variables - EPM Agent Brand Colors */
:root {
    /* Primary Colors */
    --cognify-blue: #0052CC;
    --deep-navy: #001F3F;
    --bright-cyan: #00B8D9;

    /* Secondary Colors */
    --success-green: #00875A;
    --alert-orange: #FF8B00;
    --neutral-gray: #42526E;

    /* Background Colors */
    --white: #FFFFFF;
    --light-gray: #F4F5F7;
    --dark-bg: #0A1929;

    /* Text Colors */
    --text-primary: #172B4D;
    --text-secondary: #5E6C84;
    --text-muted: #8993A4;

    /* Spacing */
    --container-width: 1200px;
    --section-padding: 80px 0;

    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

/* Reset & Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    color: var(--text-primary);
    line-height: 1.6;
    background-color: var(--white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Container */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 24px;
}

/* Navigation */
.navbar {
    background: var(--white);
    border-bottom: 1px solid var(--light-gray);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 24px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 20px;
    font-weight: 700;
    color: var(--deep-navy);
    text-decoration: none;
}

.logo-icon {
    width: 32px;
    height: 32px;
    color: var(--cognify-blue);
}

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

.nav-links a {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    font-size: 15px;
    transition: color 0.2s;
}

.nav-links a:hover {
    color: var(--cognify-blue);
}

.nav-cta {
    background: var(--cognify-blue);
    color: var(--white) !important;
    padding: 10px 20px;
    border-radius: 6px;
    transition: background 0.2s;
}

.nav-cta:hover {
    background: var(--deep-navy);
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    cursor: pointer;
}

.mobile-menu-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: all 0.3s;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #F4F5F7 0%, #FFFFFF 100%);
    padding: 80px 0 60px;
    position: relative;
    overflow: hidden;
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-content {
    max-width: 600px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--white);
    border: 1px solid var(--light-gray);
    border-radius: 100px;
    padding: 8px 16px;
    font-size: 14px;
    font-weight: 500;
    color: var(--cognify-blue);
    margin-bottom: 24px;
}

.badge-icon {
    color: var(--alert-orange);
}

.hero-title {
    font-size: 56px;
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 24px;
    color: var(--deep-navy);
}

.gradient-text {
    background: linear-gradient(135deg, var(--cognify-blue), var(--bright-cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 20px;
    color: var(--text-secondary);
    margin-bottom: 32px;
    line-height: 1.6;
}

.hero-cta {
    display: flex;
    gap: 16px;
    margin-bottom: 48px;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.stat {
    text-align: center;
}

.stat-value {
    font-size: 36px;
    font-weight: 700;
    color: var(--cognify-blue);
    margin-bottom: 4px;
}

.stat-label {
    font-size: 14px;
    color: var(--text-secondary);
}

/* Chat Demo Visual */
.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.chat-demo {
    background: var(--white);
    border-radius: 12px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
    width: 100%;
    max-width: 480px;
    overflow: hidden;
}

.chat-header {
    background: var(--deep-navy);
    color: var(--white);
    padding: 16px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.chat-title {
    font-weight: 600;
}

.status-indicator {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
}

.status-dot {
    width: 8px;
    height: 8px;
    background: var(--success-green);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.chat-messages {
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    min-height: 320px;
}

.message {
    display: flex;
}

.user-message .message-content {
    background: var(--light-gray);
    color: var(--text-primary);
    padding: 12px 16px;
    border-radius: 18px 18px 4px 18px;
    max-width: 80%;
    margin-left: auto;
}

.ai-message .message-content {
    background: var(--cognify-blue);
    color: var(--white);
    padding: 12px 16px;
    border-radius: 18px 18px 18px 4px;
    max-width: 85%;
}

.data-result {
    background: rgba(255, 255, 255, 0.15);
    border-radius: 8px;
    padding: 12px;
    margin-top: 12px;
}

.data-row {
    display: flex;
    justify-content: space-between;
    padding: 6px 0;
    font-size: 14px;
}

.positive {
    color: #4FD1C5;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    border-radius: 6px;
    font-weight: 600;
    font-size: 15px;
    text-decoration: none;
    transition: all 0.2s;
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--cognify-blue);
    color: var(--white);
}

.btn-primary:hover {
    background: var(--deep-navy);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 82, 204, 0.3);
}

.btn-secondary {
    background: var(--light-gray);
    color: var(--text-primary);
}

.btn-secondary:hover {
    background: #E4E6EA;
}

.btn-outline {
    background: transparent;
    color: var(--cognify-blue);
    border: 2px solid var(--cognify-blue);
}

.btn-outline:hover {
    background: var(--cognify-blue);
    color: var(--white);
}

.btn-large {
    padding: 16px 32px;
    font-size: 16px;
}

/* Trust Section */
.trust-section {
    background: var(--light-gray);
    padding: 40px 0;
    text-align: center;
}

.trust-text {
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 24px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.trust-logos {
    display: flex;
    justify-content: center;
    gap: 48px;
    flex-wrap: wrap;
}

.trust-logo-placeholder {
    background: var(--white);
    padding: 16px 32px;
    border-radius: 8px;
    color: var(--text-muted);
    font-size: 14px;
    font-weight: 500;
}

/* Features Section */
.features-section {
    padding: var(--section-padding);
}

.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-title {
    font-size: 42px;
    font-weight: 700;
    color: var(--deep-navy);
    margin-bottom: 16px;
}

.section-subtitle {
    font-size: 18px;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
}

.feature-card {
    background: var(--white);
    border: 1px solid var(--light-gray);
    border-radius: 12px;
    padding: 32px;
    transition: all 0.3s;
}

.feature-card:hover {
    border-color: var(--cognify-blue);
    box-shadow: 0 8px 24px rgba(0, 82, 204, 0.1);
    transform: translateY(-4px);
}

.feature-icon {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--cognify-blue), var(--bright-cyan));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    margin-bottom: 20px;
}

.feature-title {
    font-size: 22px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--deep-navy);
}

.feature-description {
    color: var(--text-secondary);
    margin-bottom: 16px;
    line-height: 1.6;
}

.feature-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.feature-list li {
    color: var(--text-secondary);
    font-size: 14px;
    padding-left: 24px;
    position: relative;
}

.feature-list li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--success-green);
    font-weight: 700;
}

/* How It Works Section */
.how-it-works {
    background: var(--dark-bg);
    color: var(--white);
    padding: var(--section-padding);
}

.how-it-works .section-title,
.how-it-works .section-subtitle {
    color: var(--white);
}

.steps-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 48px;
    margin-top: 64px;
}

.step {
    text-align: center;
}

.step-number {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--cognify-blue), var(--bright-cyan));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    font-weight: 700;
    margin: 0 auto 24px;
}

.step-title {
    font-size: 22px;
    font-weight: 600;
    margin-bottom: 12px;
}

.step-description {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.6;
}

/* Benefits Section */
.benefits-section {
    padding: var(--section-padding);
    background: var(--light-gray);
}

.benefits-content {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
    margin-top: 48px;
}

.benefit {
    display: flex;
    gap: 16px;
    align-items: flex-start;
    text-align: left;
    background: var(--white);
    padding: 24px;
    border-radius: 8px;
}

.benefit-icon {
    font-size: 32px;
    flex-shrink: 0;
}

.benefit h4 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 4px;
    color: var(--deep-navy);
}

.benefit p {
    color: var(--text-secondary);
    font-size: 14px;
}

/* CTA Section */
.cta-section {
    background: linear-gradient(135deg, var(--cognify-blue), var(--bright-cyan));
    color: var(--white);
    padding: 80px 0;
    text-align: center;
}

.cta-content {
    max-width: 700px;
    margin: 0 auto;
}

.cta-title {
    font-size: 42px;
    font-weight: 700;
    margin-bottom: 16px;
}

.cta-subtitle {
    font-size: 20px;
    opacity: 0.95;
    margin-bottom: 32px;
}

.cta-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    margin-bottom: 24px;
}

.cta-section .btn-primary {
    background: var(--white);
    color: var(--cognify-blue);
}

.cta-section .btn-primary:hover {
    background: var(--light-gray);
}

.cta-section .btn-outline {
    border-color: var(--white);
    color: var(--white);
}

.cta-section .btn-outline:hover {
    background: var(--white);
    color: var(--cognify-blue);
}

.cta-note {
    font-size: 14px;
    opacity: 0.9;
}

/* Footer */
.footer {
    background: var(--dark-bg);
    color: var(--white);
    padding: 60px 0 24px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 48px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 16px;
}

.footer-logo .logo-icon {
    width: 32px;
    height: 32px;
    color: var(--bright-cyan);
}

.footer-description {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 24px;
    line-height: 1.6;
}

.footer-social {
    display: flex;
    gap: 16px;
}

.footer-social a {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    transition: all 0.2s;
}

.footer-social a:hover {
    background: var(--cognify-blue);
    transform: translateY(-2px);
}

.footer-heading {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 16px;
}

.footer-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    font-size: 14px;
    transition: color 0.2s;
}

.footer-links a:hover {
    color: var(--white);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: rgba(255, 255, 255, 0.6);
    font-size: 14px;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .hero .container {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .hero-visual {
        order: -1;
    }

    .features-grid {
        grid-template-columns: 1fr;
    }

    .steps-grid {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .mobile-menu-toggle {
        display: flex;
    }

    .hero-title {
        font-size: 36px;
    }

    .hero-subtitle {
        font-size: 18px;
    }

    .hero-cta {
        flex-direction: column;
    }

    .hero-stats {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .section-title {
        font-size: 32px;
    }

    .benefits-grid {
        grid-template-columns: 1fr;
    }

    .cta-buttons {
        flex-direction: column;
    }

    .footer-grid {
        grid-template-columns: 1fr;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 8px;
        text-align: center;
    }
}