/* assets/css/app.css - Core B2B SaaS Styles for FidelAPI */

:root {
    --primary-color: #0F172A; /* Deep Navy */
    --accent-color: #3B82F6; /* Tech Blue */
    --accent-hover: #2563EB;
    --text-dark: #1E293B;
    --text-light: #64748B;
    --bg-light: #F8FAFC;
    --bg-white: #FFFFFF;
    --border-color: #E2E8F0;
    --success-color: #10B981;
    --error-color: #EF4444;
    
    --font-main: 'Inter', system-ui, -apple-system, sans-serif;
    --font-code: 'Fira Code', monospace;
    
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    
    --border-radius: 8px;
    --transition-speed: 0.2s;
}

/* Reset & Base */
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
    font-family: var(--font-main);
    color: var(--text-dark);
    line-height: 1.6;
    background-color: var(--bg-light);
    -webkit-font-smoothing: antialiased;
}
a { text-decoration: none; color: var(--accent-color); transition: color var(--transition-speed); }
a:hover { color: var(--accent-hover); }
ul { list-style: none; }
img { max-width: 100%; height: auto; display: block; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.text-center { text-align: center; }

/* Typography */
h1, h2, h3, h4 { color: var(--primary-color); font-weight: 700; line-height: 1.2; margin-bottom: 1rem; }
h1 { font-size: 3rem; letter-spacing: -0.02em; }
h2 { font-size: 2.25rem; }
h3 { font-size: 1.5rem; }
p { color: var(--text-light); margin-bottom: 1rem; }
.lead-text { font-size: 1.25rem; color: var(--text-light); }

/* Buttons */
.btn {
    display: inline-block;
    padding: 10px 20px;
    border-radius: var(--border-radius);
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-speed);
    border: none;
    font-size: 1rem;
}
.btn-primary { background-color: var(--accent-color); color: white; }
.btn-primary:hover { background-color: var(--accent-hover); color: white; transform: translateY(-1px); box-shadow: var(--shadow-md); }
.btn-outline { background-color: transparent; border: 2px solid var(--border-color); color: var(--primary-color); }
.btn-outline:hover { border-color: var(--primary-color); background-color: var(--bg-light); }
.btn-lg { padding: 14px 28px; font-size: 1.125rem; }
.btn-block { display: block; width: 100%; }

/* Glass & UI Panels */
.glass-panel {
    background: white;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    padding: 24px;
}
.badge {
    display: inline-block;
    padding: 4px 12px;
    background-color: #DBEAFE;
    color: var(--accent-color);
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 16px;
}
.rounded-image { border-radius: 12px; }

/* Header */
.main-header {
    background-color: white;
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
}
.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}
.brand .logo { display: flex; align-items: baseline; gap: 8px; font-size: 1.5rem; color: var(--primary-color); }
.brand-tagline { font-size: 0.875rem; color: var(--text-light); font-weight: 400; }
.main-nav ul { display: flex; gap: 32px; }
.main-nav a { color: var(--text-light); font-weight: 500; }
.main-nav a:hover, .main-nav a.active { color: var(--primary-color); }

/* Hero Section */
.hero-section { padding: 80px 0; background: white; }
.hero-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.hero-cta-group { display: flex; gap: 16px; margin-top: 32px; }
.glass-image { border-radius: 16px; box-shadow: var(--shadow-lg); border: 4px solid white; }

/* Trust Badges */
.trust-section { padding: 40px 0; background-color: var(--primary-color); color: white; text-align: center; }
.trust-title { color: #94A3B8; font-size: 0.875rem; text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 24px; }
.trust-grid { display: flex; justify-content: center; gap: 48px; flex-wrap: wrap; }
.trust-item { font-weight: 600; color: #F1F5F9; }

/* Sections */
.section-heading { text-align: center; max-width: 600px; margin: 0 auto 48px; }
.features-section, .how-it-works-section { padding: 80px 0; }
.how-it-works-section.dark-mode { background-color: var(--primary-color); color: white; }
.how-it-works-section.dark-mode h2, .how-it-works-section.dark-mode p { color: white; }

/* Features Grid */
.features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.feature-card { transition: transform var(--transition-speed); }
.feature-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.feature-icon { font-size: 2rem; margin-bottom: 16px; }

/* Workflow Steps */
.workflow-steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; margin-bottom: 48px; }
.step { background: rgba(255,255,255,0.05); padding: 24px; border-radius: var(--border-radius); border: 1px solid rgba(255,255,255,0.1); }
.step-number { color: var(--accent-color); font-size: 2.5rem; font-weight: 800; opacity: 0.8; margin-bottom: 16px; }
.step-content h4 { color: white; margin-bottom: 8px; }

/* Page Banners */
.page-title-banner { background-color: white; padding: 60px 0; border-bottom: 1px solid var(--border-color); }
.page-title-banner h1 { margin-bottom: 8px; }

/* Catalog Layout */
.catalog-layout { display: grid; grid-template-columns: 280px 1fr; gap: 48px; padding: 60px 24px; }
.sidebar-widget { background: white; padding: 24px; border-radius: var(--border-radius); border: 1px solid var(--border-color); margin-bottom: 24px; }
.filter-group { margin-bottom: 24px; }
.filter-group h4 { font-size: 1rem; margin-bottom: 12px; }
.filter-label { display: block; margin-bottom: 8px; color: var(--text-light); cursor: pointer; }

/* Product Grid */
.catalog-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 32px; align-content: start; }
.product-card { background: white; border: 1px solid var(--border-color); border-radius: var(--border-radius); overflow: hidden; display: flex; flex-direction: column; transition: box-shadow 0.2s;}
.product-card:hover { box-shadow: var(--shadow-md); }
.card-image-wrapper { height: 180px; overflow: hidden; }
.card-image-wrapper img { width: 100%; height: 100%; object-fit: cover; }
.card-content { padding: 24px; flex-grow: 1; }
.card-meta { display: flex; gap: 16px; margin-top: 16px; font-size: 0.875rem; color: var(--text-light); }
.card-footer { padding: 16px 24px; background: var(--bg-light); border-top: 1px solid var(--border-color); display: flex; justify-content: space-between; align-items: center; }
.price { font-weight: 700; color: var(--primary-color); }

/* Product Detail Layout */
.product-hero { background-color: var(--primary-color); color: white; padding: 60px 0 80px; }
.breadcrumbs { color: #94A3B8; margin-bottom: 24px; font-size: 0.875rem;}
.breadcrumbs a { color: #CBD5E1; }
.breadcrumbs a:hover { color: white; }
.product-hero-content { max-width: 800px; }
.product-hero-content h1 { color: white; font-size: 3.5rem; margin-top: 16px;}
.product-hero-actions { margin-top: 32px; display: flex; gap: 16px; }
.product-hero-actions .btn-outline { color: white; border-color: rgba(255,255,255,0.3); }

.product-layout { display: grid; grid-template-columns: 1fr 340px; gap: 64px; margin-top: -40px; }
.product-main-content { background: white; padding: 48px; border-radius: var(--border-radius); box-shadow: var(--shadow-sm); border: 1px solid var(--border-color); }
.product-section { margin-bottom: 48px; padding-bottom: 48px; border-bottom: 1px solid var(--border-color); }
.product-section:last-child { border-bottom: none; margin-bottom: 0; padding-bottom: 0; }

.specs-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; margin-top: 32px; background: var(--bg-light); padding: 24px; border-radius: var(--border-radius); }
.spec-item { display: flex; flex-direction: column; }
.spec-label { font-size: 0.875rem; color: var(--text-light); text-transform: uppercase; letter-spacing: 0.05em; }
.spec-value { font-size: 1.25rem; font-weight: 700; color: var(--primary-color); }

/* Code Block */
.code-block-wrapper { background: var(--primary-color); border-radius: var(--border-radius); overflow: hidden; margin-top: 24px; }
.code-header { background: rgba(0,0,0,0.2); padding: 12px 16px; display: flex; align-items: center; gap: 12px; border-bottom: 1px solid rgba(255,255,255,0.1); }
.method.post { background: #10B981; color: white; padding: 4px 8px; border-radius: 4px; font-size: 0.75rem; font-weight: 700; }
.endpoint { color: #E2E8F0; font-family: var(--font-code); font-size: 0.875rem; }
pre { padding: 24px; overflow-x: auto; color: #E2E8F0; font-family: var(--font-code); font-size: 0.875rem; }

/* Accordion */
.accordion-item { border: 1px solid var(--border-color); border-radius: var(--border-radius); margin-bottom: 16px; overflow: hidden; }
.accordion-header { width: 100%; padding: 16px 24px; background: var(--bg-light); border: none; text-align: left; font-weight: 600; font-size: 1rem; color: var(--primary-color); cursor: pointer; display: flex; justify-content: space-between; align-items: center; }
.accordion-content { padding: 24px; background: white; display: none; border-top: 1px solid var(--border-color); }

/* Sidebar Pricing */
.product-sidebar { margin-top: 40px; }
.pricing-card { position: sticky; top: 100px; }
.price-big { font-size: 3rem; font-weight: 800; color: var(--primary-color); line-height: 1; margin: 16px 0; }
.price-big .currency { font-size: 1.5rem; vertical-align: top; color: var(--text-light); }
.price-big .period { font-size: 1rem; color: var(--text-light); font-weight: 500; }
.billing-desc { font-size: 0.875rem; border-bottom: 1px solid var(--border-color); padding-bottom: 24px; margin-bottom: 24px; }
.plan-features { margin-bottom: 32px; }
.plan-features li { margin-bottom: 12px; display: flex; gap: 8px; color: var(--text-dark); }
.check-icon { color: var(--success-color); font-weight: bold; }
.guarantee-text { font-size: 0.75rem; text-align: center; margin-top: 16px; color: var(--text-light); }
.support-card { margin-top: 24px; background: transparent; padding: 24px; border: 1px dashed var(--border-color); border-radius: var(--border-radius); text-align: center; }

/* About Page */
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; margin-bottom: 80px; }
.about-grid.reverse-grid { grid-template-columns: 1fr 1fr; }
.about-content-centered { max-width: 800px; margin: 0 auto; text-align: center; font-size: 1.125rem; }
.mission-stats { display: grid; grid-template-columns: 1fr; gap: 24px; }
.stat-box { background: white; padding: 32px; border-radius: var(--border-radius); box-shadow: var(--shadow-sm); border: 1px solid var(--border-color); text-align: center; }
.stat-number { display: block; font-size: 2.5rem; font-weight: 800; color: var(--accent-color); line-height: 1; margin-bottom: 8px; }

/* Contact Forms */
.contact-layout { padding: 60px 24px; }
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; }
.info-item { display: flex; gap: 16px; margin-bottom: 32px; }
.info-icon { font-size: 1.5rem; }
.map-placeholder { margin-top: 48px; }

.form-row { display: flex; gap: 24px; }
.form-group { margin-bottom: 24px; }
.form-group.half { flex: 1; }
label { display: block; font-weight: 500; margin-bottom: 8px; color: var(--primary-color); }
input[type="text"], input[type="email"], input[type="tel"], select, textarea {
    width: 100%; padding: 12px 16px; border: 1px solid var(--border-color); border-radius: 6px; font-family: var(--font-main); font-size: 1rem; transition: border-color var(--transition-speed);
}
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--accent-color); box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1); }
.checkbox-group label { display: flex; align-items: flex-start; gap: 12px; font-weight: 400; font-size: 0.875rem; color: var(--text-light); cursor: pointer; }
.checkbox-group input { margin-top: 4px; }
.alert { padding: 16px; border-radius: 6px; margin-bottom: 24px; font-weight: 500; }
.alert-success { background: #ECFDF5; color: #065F46; border: 1px solid #A7F3D0; }
.alert-error { background: #FEF2F2; color: #991B1B; border: 1px solid #FECACA; }
.security-note { margin-top: 16px; color: var(--text-light); }

/* Legal Pages */
.legal-layout { max-width: 800px; margin: 0 auto; padding: 60px 24px; }
.legal-document section { margin-bottom: 32px; }
.legal-document h1 { margin-bottom: 8px; }
.last-updated { color: var(--text-light); font-size: 0.875rem; margin-bottom: 48px; }
.legal-document h2 { font-size: 1.5rem; margin-bottom: 16px; border-bottom: 1px solid var(--border-color); padding-bottom: 8px; }
.legal-document ul { list-style-type: disc; padding-left: 24px; margin-bottom: 16px; }
.legal-document li { margin-bottom: 8px; color: var(--text-light); }

/* Footer */
.main-footer { background-color: var(--primary-color); color: #94A3B8; padding-top: 80px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1.5fr; gap: 48px; margin-bottom: 60px; }
.footer-brand h3 { color: white; margin-bottom: 16px; }
.footer-brand strong { color: white; }
.footer-links h4, .footer-legal h4, .footer-contact h4 { color: white; font-size: 1.125rem; margin-bottom: 24px; }
.footer-links ul li, .footer-legal ul li { margin-bottom: 12px; }
.footer-grid a { color: #94A3B8; }
.footer-grid a:hover { color: white; }
.footer-contact address { font-style: normal; margin-bottom: 16px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); padding: 24px 0; font-size: 0.875rem; }

/* Responsive Adjustments */
@media (max-width: 992px) {
    .hero-grid, .about-grid, .contact-grid, .product-layout, .catalog-layout { grid-template-columns: 1fr; gap: 48px; }
    .catalog-sidebar { order: 2; }
    .product-main-content { order: 2; }
    .product-sidebar { order: 1; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
    .features-grid, .workflow-steps, .catalog-grid { grid-template-columns: 1fr; }
    h1 { font-size: 2.25rem; }
    .main-nav { display: none; } /* Add hamburger menu in real JS */
    .form-row { flex-direction: column; gap: 0; }
}