/* ================================================================
   AYHA Platform - Public Landing Page Styles
   Brand Identity: Controlled Stability (Direction A - Pure Authority)
   ================================================================ */

:root {
    /* Color Palette - LOCKED */
    --color-primary: #1a2332;        /* Deep Navy Blue - dominant */
    --color-secondary: #64748b;      /* Slate Gray - structure */
    --color-base: #ffffff;           /* White - background */
    --color-accent: #0891b2;         /* Muted Teal - CTA only */
    
    /* Semantic Colors */
    --color-text-primary: #1e293b;   /* Near black for body text */
    --color-text-secondary: #64748b; /* Slate for secondary text */
    --color-text-light: #94a3b8;     /* Light slate for muted text */
    --color-border: #e2e8f0;         /* Light border */
    --color-divider: #cbd5e1;        /* Dividers */
    
    /* Typography - Modern Neutral Sans-Serif */
    --font-family-base: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
}

/* ================================================================
   Base Typography
   ================================================================ */

body {
    font-family: var(--font-family-base);
    color: var(--color-text-primary);
    line-height: 1.6;
    font-weight: var(--font-weight-normal);
}

h1, h2, h3, h4, h5, h6 {
    color: var(--color-primary);
    font-weight: var(--font-weight-semibold);
    line-height: 1.2;
}

/* ================================================================
   Navigation Bar - Deep Navy Background
   ================================================================ */

.navbar-ayha {
    background-color: var(--color-primary) !important;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.navbar-ayha .navbar-brand {
    color: var(--color-base) !important;
    font-weight: var(--font-weight-bold);
    letter-spacing: 0.05em;
}

.navbar-ayha .nav-link {
    color: rgba(255, 255, 255, 0.85) !important;
    font-weight: var(--font-weight-medium);
    transition: color 0.2s ease;
}

.navbar-ayha .nav-link:hover,
.navbar-ayha .nav-link:focus {
    color: var(--color-base) !important;
}

.navbar-ayha .nav-link.active {
    color: var(--color-base) !important;
    border-bottom: 2px solid var(--color-accent);
}

/* Primary CTA Button - Accent Color ONLY */
.btn-ayha-primary {
    background-color: var(--color-accent);
    border-color: var(--color-accent);
    color: var(--color-base);
    font-weight: var(--font-weight-semibold);
    padding: 0.5rem 1.5rem;
    transition: all 0.2s ease;
}

.btn-ayha-primary:hover,
.btn-ayha-primary:focus {
    background-color: #0e7490; /* Slightly darker teal */
    border-color: #0e7490;
    color: var(--color-base);
}

/* Secondary Button - Slate Gray Outline */
.btn-ayha-secondary {
    background-color: transparent;
    border: 2px solid var(--color-secondary);
    color: var(--color-secondary);
    font-weight: var(--font-weight-semibold);
    padding: 0.5rem 1.5rem;
    transition: all 0.2s ease;
}

.btn-ayha-secondary:hover,
.btn-ayha-secondary:focus {
    background-color: var(--color-secondary);
    border-color: var(--color-secondary);
    color: var(--color-base);
}

/* ================================================================
   Hero Section - Clean, Spacious, Authoritative
   ================================================================ */

.hero-section {
    background-color: var(--color-base);
    padding: var(--spacing-xl) 0;
}

.hero-title {
    color: var(--color-primary);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-md);
}

.hero-lead {
    color: var(--color-text-secondary);
    font-size: 1.25rem;
    font-weight: var(--font-weight-normal);
    line-height: 1.7;
}

/* ================================================================
   Sections
   ================================================================ */

.section-primary {
    background-color: var(--color-base);
    padding: var(--spacing-xl) 0;
}

.section-secondary {
    background-color: #f8fafc; /* Subtle off-white */
    padding: var(--spacing-xl) 0;
}

.section-title {
    color: var(--color-primary);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-sm);
}

.section-subtitle {
    color: var(--color-text-secondary);
    font-size: 1.125rem;
    font-weight: var(--font-weight-normal);
}

/* ================================================================
   Cards - Clean, Minimal, Structured with Fixed Button
   ================================================================ */

.card-ayha {
    background-color: var(--color-base);
    border: 1px solid var(--color-border);
    border-radius: 0.5rem;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
    display: flex;
    flex-direction: column;
}

.card-ayha:hover {
    border-color: var(--color-secondary);
    box-shadow: 0 4px 12px rgba(26, 35, 50, 0.08);
}

.card-ayha .card-body {
    display: flex;
    flex-direction: column;
    flex: 1;
}

.card-ayha .card-title {
    color: var(--color-primary);
    font-weight: var(--font-weight-semibold);
}

.card-ayha .card-text {
    color: var(--color-text-secondary);
    line-height: 1.6;
    flex: 1;
    min-height: 4rem;
}

.card-ayha .card-action {
    margin-top: auto;
    padding-top: 1rem;
}

/* Pricing Cards */
.pricing-card {
    background-color: var(--color-base);
    border: 2px solid var(--color-border);
    border-radius: 0.5rem;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.pricing-card:hover {
    border-color: var(--color-accent);
    transform: translateY(-4px);
    box-shadow: 0 8px 16px rgba(26, 35, 50, 0.1);
}

.pricing-card.featured {
    border-color: var(--color-accent);
    border-width: 2px;
}

.pricing-header {
    padding: 2rem;
    text-align: center;
    border-bottom: 1px solid var(--color-border);
}

.pricing-title {
    color: var(--color-primary);
    font-weight: var(--font-weight-bold);
    margin-bottom: 0.5rem;
}

.pricing-price {
    font-size: 2.5rem;
    font-weight: var(--font-weight-bold);
    color: var(--color-primary);
    margin-bottom: 0.25rem;
}

.pricing-period {
    color: var(--color-text-secondary);
    font-size: 0.875rem;
}

.pricing-features {
    padding: 2rem;
    flex: 1;
}

.pricing-features ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.pricing-features li {
    padding: 0.75rem 0;
    color: var(--color-text-secondary);
    display: flex;
    align-items: center;
}

.pricing-features li:before {
    content: "✓";
    color: var(--color-accent);
    font-weight: var(--font-weight-bold);
    margin-right: 0.75rem;
}

.pricing-footer {
    padding: 2rem;
    padding-top: 0;
}

/* ================================================================
   Footer - Compact Deep Navy Background
   ================================================================ */

.footer-ayha {
    background-color: var(--color-primary);
    color: rgba(255, 255, 255, 0.85);
    padding: 1rem 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-link {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    font-size: 0.875rem;
    transition: color 0.2s ease;
}

.footer-link:hover {
    color: var(--color-base);
    text-decoration: underline;
}

/* ================================================================
   Icons/SVG Styling
   ================================================================ */

.icon-primary {
    color: var(--color-primary);
}

.icon-accent {
    color: var(--color-accent);
}

.icon-secondary {
    color: var(--color-secondary);
}

/* ================================================================
   Utility Classes
   ================================================================ */

.text-primary-ayha {
    color: var(--color-primary) !important;
}

.text-secondary-ayha {
    color: var(--color-text-secondary) !important;
}

.text-muted-ayha {
    color: var(--color-text-light) !important;
}

.bg-primary-ayha {
    background-color: var(--color-primary) !important;
}

.bg-secondary-ayha {
    background-color: #f8fafc !important;
}

.border-ayha {
    border-color: var(--color-border) !important;
}

.divider-ayha {
    border-top: 1px solid var(--color-divider);
}

/* ================================================================
   Focus States - Accent Color
   ================================================================ */

a:focus,
button:focus,
.btn:focus,
.form-control:focus {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

/* ================================================================
   Smooth Scrolling
   ================================================================ */

html {
    scroll-behavior: smooth;
}

/* ================================================================
   Responsive Adjustments
   ================================================================ */

@media (max-width: 768px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    .pricing-price {
        font-size: 2rem;
    }
}