/* FabriXWork Landing Page Styles */
/* Theme based on FabriXAI design system */

:root {
    /* Colors */
    --primary: #4d65ff;
    --primary-dark: #3a4fd9;
    --primary-light: #6b7fff;
    --secondary: #1a1a2e;
    --text-primary: #1a1a2e;
    --text-secondary: #4a4a68;
    --text-muted: #6e6e8a;
    --background: #ffffff;
    --background-alt: #f8f9fc;
    --background-dark: #1a1a2e;
    --border: #e5e7eb;
    --success: #10b981;
    --warning: #f59e0b;

    /* Typography */
    --font-family: 'Open Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-base: 16px;
    --line-height: 1.6;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;

    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
}

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

html {
    font-size: var(--font-size-base);
    scroll-behavior: smooth;
}

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

body.menu-open {
    overflow: hidden;
}

img {
    max-width: 100%;
    height: auto;
}

a {
    color: var(--primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--primary-dark);
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.3;
    color: var(--text-primary);
}

h1 {
    font-size: clamp(2.25rem, 5vw, 3.5rem);
}

h2 {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
}

h3 {
    font-size: clamp(1.25rem, 3vw, 1.5rem);
}

h4 {
    font-size: 1.125rem;
}

p {
    color: var(--text-secondary);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    font-family: var(--font-family);
    font-size: 0.9375rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    border: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
    white-space: nowrap;
}

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

.btn-primary:hover {
    background-color: var(--primary-dark);
    border-color: var(--primary-dark);
    color: white;
}

.btn-outline {
    background-color: transparent;
    color: var(--primary);
    border-color: var(--primary);
}

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

.btn-outline-light {
    background-color: transparent;
    color: white;
    border-color: white;
}

.btn-outline-light:hover {
    background-color: white;
    color: var(--primary);
}

.btn-large {
    padding: 1rem 2rem;
    font-size: 1rem;
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid transparent;
    transition: all var(--transition-base);
}

.header.scrolled {
    border-bottom-color: var(--border);
    box-shadow: var(--shadow-sm);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
}

.logo:hover {
    color: var(--text-primary);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.nav-links a {
    color: var(--text-secondary);
    font-weight: 500;
    transition: color var(--transition-fast);
}

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

.nav-link-guide {
    color: var(--primary) !important;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 32px;
    height: 32px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.mobile-menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--text-primary);
    transition: all var(--transition-fast);
}

.mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile Menu */
.mobile-menu {
    display: none;
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--background);
    padding: var(--spacing-lg);
    flex-direction: column;
    gap: var(--spacing-sm);
    z-index: 999;
}

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

.mobile-menu a {
    padding: var(--spacing-sm);
    font-size: 1.125rem;
    font-weight: 500;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border);
}

.mobile-menu a:hover {
    color: var(--primary);
}

.mobile-menu-actions {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

.mobile-menu-actions .btn {
    width: 100%;
}

/* Hero Section */
.hero {
    padding: calc(72px + var(--spacing-3xl)) 0 var(--spacing-3xl);
    background: linear-gradient(135deg, #f8f9fc 0%, #ffffff 100%);
    overflow: hidden;
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    align-items: center;
}

.hero-content h1 {
    margin-bottom: var(--spacing-md);
}

.hero-content .highlight {
    color: var(--primary);
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-lg);
    max-width: 500px;
}

.hero-actions {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
    margin-bottom: var(--spacing-xl);
}

.hero-stats {
    display: flex;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
}

.stat {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.stat-icon {
    font-size: 1.25rem;
}

.stat-text {
    font-size: 0.875rem;
    color: var(--text-muted);
    font-weight: 500;
}

/* Hero Mockup */
.hero-visual {
    display: flex;
    justify-content: center;
}

.hero-mockup {
    background: var(--background);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    overflow: hidden;
    width: 100%;
    max-width: 500px;
    border: 1px solid var(--border);
}

.mockup-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--background-alt);
    border-bottom: 1px solid var(--border);
}

.mockup-dots {
    display: flex;
    gap: 6px;
}

.mockup-dots span {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--border);
}

.mockup-dots span:nth-child(1) { background: #ff5f56; }
.mockup-dots span:nth-child(2) { background: #ffbd2e; }
.mockup-dots span:nth-child(3) { background: #27ca40; }

.mockup-title {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-muted);
}

.mockup-content {
    display: grid;
    grid-template-columns: 180px 1fr;
    min-height: 300px;
}

.mockup-sidebar {
    background: var(--background-alt);
    padding: var(--spacing-sm);
    border-right: 1px solid var(--border);
}

.agent-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs);
    border-radius: var(--radius-sm);
    margin-bottom: var(--spacing-xs);
    cursor: pointer;
    transition: background var(--transition-fast);
}

.agent-item:hover, .agent-item.active {
    background: var(--background);
}

.agent-item.active {
    border-left: 3px solid var(--primary);
}

.agent-avatar {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--primary);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: 600;
    flex-shrink: 0;
}

.agent-item span {
    font-size: 0.75rem;
    color: var(--text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.mockup-chat {
    padding: var(--spacing-md);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.chat-message {
    max-width: 85%;
    padding: var(--spacing-sm);
    border-radius: var(--radius-md);
    font-size: 0.8125rem;
    line-height: 1.5;
}

.chat-message.user {
    align-self: flex-end;
    background: var(--primary);
    color: white;
    border-bottom-right-radius: 4px;
}

.chat-message.agent {
    align-self: flex-start;
    background: var(--background-alt);
    color: var(--text-primary);
    border-bottom-left-radius: 4px;
}

.chat-typing {
    display: flex;
    gap: 4px;
    padding: var(--spacing-sm);
    background: var(--background-alt);
    border-radius: var(--radius-md);
    width: fit-content;
}

.chat-typing span {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--text-muted);
    animation: typing 1.4s infinite;
}

.chat-typing span:nth-child(2) { animation-delay: 0.2s; }
.chat-typing span:nth-child(3) { animation-delay: 0.4s; }

@keyframes typing {
    0%, 60%, 100% { transform: translateY(0); opacity: 0.4; }
    30% { transform: translateY(-6px); opacity: 1; }
}

/* Problem/Solution Section */
.problem-section {
    padding: var(--spacing-3xl) 0;
    background: var(--background);
}

.problem-section .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
}

.problem-content, .solution-content {
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
}

.problem-content {
    background: #fef2f2;
    border-left: 4px solid #ef4444;
}

.solution-content {
    background: #f0fdf4;
    border-left: 4px solid var(--success);
}

.problem-content h2 { color: #dc2626; }
.solution-content h2 { color: #16a34a; }

.problem-content p, .solution-content p {
    margin-top: var(--spacing-sm);
    color: var(--text-primary);
}

/* Features Section */
.features {
    padding: var(--spacing-3xl) 0;
    background: var(--background-alt);
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.section-header p {
    font-size: 1.125rem;
    margin-top: var(--spacing-sm);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
}

.feature-card {
    background: var(--background);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
    border: 1px solid var(--border);
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
}

.feature-card h3 {
    margin-bottom: var(--spacing-sm);
}

/* Use Cases Section */
.use-cases {
    padding: var(--spacing-3xl) 0;
    background: var(--background);
}

.use-cases-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
}

.use-case-card {
    background: var(--background);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    transition: all var(--transition-base);
}

.use-case-card:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-md);
}

.use-case-badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 600;
    background: var(--background-alt);
    color: var(--primary);
    border-radius: var(--radius-sm);
    margin-bottom: var(--spacing-sm);
}

.use-case-card h3 {
    margin-bottom: var(--spacing-sm);
}

.use-case-link {
    display: inline-block;
    margin-top: var(--spacing-sm);
    font-weight: 600;
}

/* Roles Section */
.roles-section {
    padding: var(--spacing-3xl) 0;
    background: var(--background-alt);
}

.roles-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: var(--spacing-md);
}

.role-item {
    text-align: center;
    padding: var(--spacing-lg);
    background: var(--background);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    transition: all var(--transition-base);
}

.role-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.role-icon {
    font-size: 2rem;
    display: block;
    margin-bottom: var(--spacing-sm);
}

.role-item h4 {
    margin-bottom: var(--spacing-xs);
    color: var(--text-primary);
}

.role-item p {
    font-size: 0.8125rem;
}

/* CTA Section */
.cta-section {
    padding: var(--spacing-3xl) 0;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
}

.cta-content {
    text-align: center;
    color: white;
}

.cta-content h2 {
    color: white;
    margin-bottom: var(--spacing-sm);
}

.cta-content p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.25rem;
    margin-bottom: var(--spacing-lg);
}

.cta-actions {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    flex-wrap: wrap;
}

.cta-actions .btn-primary {
    background-color: white;
    color: var(--primary);
    border-color: white;
}

.cta-actions .btn-primary:hover {
    background-color: transparent;
    color: white;
}

/* Footer */
.footer {
    padding: var(--spacing-3xl) 0 var(--spacing-lg);
    background: var(--background-dark);
    color: white;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--spacing-2xl);
    padding-bottom: var(--spacing-xl);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand .logo {
    color: white;
    margin-bottom: var(--spacing-sm);
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.7);
}

.footer-links h4 {
    color: white;
    margin-bottom: var(--spacing-md);
    font-size: 1rem;
}

.footer-links ul {
    list-style: none;
}

.footer-links li {
    margin-bottom: var(--spacing-xs);
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    transition: color var(--transition-fast);
}

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

.footer-bottom {
    padding-top: var(--spacing-lg);
    text-align: center;
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.875rem;
}

/* Responsive Styles */
@media (max-width: 1024px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .roles-grid {
        grid-template-columns: repeat(3, 1fr);
    }

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

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

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

    .hero .container {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }

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

    .hero-subtitle {
        margin-left: auto;
        margin-right: auto;
    }

    .hero-actions {
        justify-content: center;
    }

    .hero-stats {
        justify-content: center;
    }

    .mockup-content {
        grid-template-columns: 1fr;
    }

    .mockup-sidebar {
        display: none;
    }

    .problem-section .container {
        grid-template-columns: 1fr;
    }

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

    .use-cases-grid {
        grid-template-columns: 1fr;
    }

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

    .footer-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }

    .cta-actions {
        flex-direction: column;
        align-items: center;
    }

    .cta-actions .btn {
        width: 100%;
        max-width: 300px;
    }
}

@media (max-width: 480px) {
    .hero-actions {
        flex-direction: column;
        align-items: center;
    }

    .hero-actions .btn {
        width: 100%;
    }

    .hero-stats {
        flex-direction: column;
        gap: var(--spacing-sm);
    }

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

    .btn-large {
        padding: 0.875rem 1.5rem;
        font-size: 0.9375rem;
    }
}

/* Focus styles for accessibility */
:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

button:focus-visible,
a:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}