/*
   The Credentialist - Landing Page Styles
   Design System: Warm, Professional, Approachable
   Target: Healthcare providers (women-focused aesthetic)
   Performance: <3 second load time
   Accessibility: WCAG 2.1 AA
*/

:root {
    /* Warm Color Palette (from UX Design Spec) */
    --sage-green: #B8D4B8;
    --sage-green-light: #D4E8D4;
    --sage-green-dark: #9DBE9D;

    --warm-peach: #E8B9A0;
    --warm-peach-light: #F5D9C8;
    --warm-peach-dark: #D49B7A;

    --warm-brown: #A67C52;

    --cream: #FAF7F2;
    --warm-white: #FFFFFF;

    /* Warm Neutral Grays */
    --neutral-50: #FDFCFB;
    --neutral-100: #F8F6F3;
    --neutral-200: #E8E5E0;
    --neutral-300: #D4D0C8;
    --neutral-500: #918C80;
    --neutral-700: #4A4640;
    --neutral-800: #2D2A28;
    --neutral-900: #1A1816;

    /* Semantic Colors */
    --color-primary: var(--sage-green);
    --color-primary-hover: var(--sage-green-dark);
    --color-primary-light: var(--sage-green-light);

    --color-secondary: var(--warm-peach);
    --color-secondary-hover: var(--warm-peach-dark);

    --color-background: var(--cream);
    --color-surface: var(--warm-white);
    --color-surface-muted: var(--neutral-50);

    --color-text-primary: var(--neutral-900);
    --color-text-secondary: var(--neutral-700);
    --color-text-muted: var(--neutral-500);
    --color-text-inverse: var(--warm-white);

    --color-border: var(--neutral-200);
    --color-border-focus: var(--sage-green);

    --color-success: #7CAA7C;
    --color-error: #D97676;

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

    --font-size-xs: 0.75rem;     /* 12px */
    --font-size-sm: 0.875rem;    /* 14px */
    --font-size-base: 1rem;      /* 16px */
    --font-size-lg: 1.125rem;    /* 18px */
    --font-size-xl: 1.25rem;     /* 20px */
    --font-size-2xl: 1.5rem;     /* 24px */
    --font-size-3xl: 1.875rem;   /* 30px */
    --font-size-4xl: 2.25rem;    /* 36px */

    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;

    --line-height-tight: 1.25;
    --line-height-snug: 1.375;
    --line-height-normal: 1.5;
    --line-height-relaxed: 1.75;

    /* Spacing (8px base unit) */
    --spacing-1: 0.25rem;   /* 4px */
    --spacing-2: 0.5rem;    /* 8px */
    --spacing-3: 0.75rem;   /* 12px */
    --spacing-4: 1rem;      /* 16px */
    --spacing-5: 1.25rem;   /* 20px */
    --spacing-6: 1.5rem;    /* 24px */
    --spacing-8: 2rem;      /* 32px */
    --spacing-10: 2.5rem;   /* 40px */
    --spacing-12: 3rem;     /* 48px */
    --spacing-16: 4rem;     /* 64px */
    --spacing-20: 5rem;     /* 80px */
    --spacing-24: 6rem;     /* 96px */

    /* Touch Targets (Mobile) */
    --touch-target-min: 2.75rem;  /* 44px */
    --form-input-height: 3rem;    /* 48px */
    --button-height: 3.25rem;     /* 52px */

    /* Border Radius */
    --radius-sm: 0.25rem;    /* 4px */
    --radius-md: 0.5rem;     /* 8px */
    --radius-lg: 0.75rem;    /* 12px */
    --radius-xl: 1rem;       /* 16px */
    --radius-full: 100rem;

    /* Shadows (warm, subtle) */
    --shadow-sm: 0 1px 2px rgba(26, 24, 22, 0.05);
    --shadow-md: 0 4px 6px rgba(26, 24, 22, 0.07);
    --shadow-lg: 0 10px 15px rgba(26, 24, 22, 0.1);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
    --transition-slow: 350ms ease;

    /* Layout */
    --container-max-width: 1200px;
    --container-padding-mobile: var(--spacing-4);
    --container-padding-desktop: var(--spacing-8);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px; /* Prevent mobile browser auto-zoom */
}

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

h1, h2, h3, h4, h5, h6 {
    font-weight: var(--font-weight-bold);
    line-height: var(--line-height-tight);
    margin-bottom: var(--spacing-4);
    color: var(--color-text-primary);
}

h1 { font-size: var(--font-size-4xl); }
h2 { font-size: var(--font-size-3xl); }
h3 { font-size: var(--font-size-2xl); }
h4 { font-size: var(--font-size-xl); }

p {
    margin-bottom: var(--spacing-4);
    line-height: var(--line-height-relaxed);
}

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

ul {
    list-style: none;
}

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

strong {
    font-weight: var(--font-weight-semibold);
    color: var(--color-primary);
}

/* Accessibility */
.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    margin: -1px;
    padding: 0;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}

/* Focus visible for keyboard navigation */
*:focus-visible {
    outline: 2px solid var(--color-border-focus);
    outline-offset: 2px;
}

/* Layout Components */
.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding-left: var(--container-padding-mobile);
    padding-right: var(--container-padding-mobile);
}

.section {
    padding: var(--spacing-12) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-12);
}

.section-title {
    font-size: var(--font-size-3xl);
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-3);
}

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

/* Navbar */
.navbar {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    padding: var(--spacing-4) 0;
}

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

.logo {
    height: 45px;
    width: auto;
}

.nav-links {
    display: flex;
    gap: var(--spacing-8);
    align-items: center;
}

.nav-link {
    font-weight: var(--font-weight-medium);
    color: var(--color-text-primary);
    padding: var(--spacing-2) var(--spacing-3);
    border-radius: var(--radius-md);
}

.nav-link:hover {
    color: var(--color-primary);
    background-color: var(--color-primary-light);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-3) var(--spacing-6);
    min-height: var(--touch-target-min);
    font-weight: var(--font-weight-semibold);
    font-size: var(--font-size-base);
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: var(--transition-normal);
    border: none;
    text-align: center;
    font-family: var(--font-family);
}

.btn-primary {
    background-color: var(--color-primary);
    color: var(--color-text-primary);
    box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
    background-color: var(--color-primary-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-full-width {
    width: 100%;
}

.btn-large {
    padding: var(--spacing-4) var(--spacing-10);
    font-size: var(--font-size-lg);
}

.btn-outline-sage {
    background-color: transparent;
    border: 2px solid var(--sage-green);
    color: var(--sage-green-dark);
}

.btn-outline-sage:hover {
    background-color: var(--sage-green-light);
}

.btn-outline-peach {
    background-color: transparent;
    border: 2px solid var(--warm-peach);
    color: var(--warm-peach-dark);
}

.btn-outline-peach:hover {
    background-color: var(--warm-peach-light);
}

/* Hero Section */
.hero {
    position: relative;
    padding: var(--spacing-16) 0;
    background: linear-gradient(135deg, var(--cream) 0%, var(--sage-green-light) 100%);
    overflow: hidden;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-12);
    align-items: center;
}

.hero-text h1 {
    font-size: 2rem;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-6);
    line-height: var(--line-height-tight);
}

.hero-subtitle {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-8);
    line-height: var(--line-height-relaxed);
}

.hero-trust-badges {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-4);
}

.trust-badge {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--sage-green-dark);
}

/* Lead Form Card */
.lead-form-card {
    background: var(--color-surface);
    padding: var(--spacing-8);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
}

.form-title {
    font-size: var(--font-size-2xl);
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-2);
}

.form-subtitle {
    font-size: var(--font-size-base);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-6);
}

.form-group {
    margin-bottom: var(--spacing-4);
}

.form-input {
    width: 100%;
    padding: var(--spacing-3) var(--spacing-4);
    min-height: var(--form-input-height);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    transition: var(--transition-fast);
    background-color: var(--color-surface);
}

.form-input:focus {
    outline: none;
    border-color: var(--color-border-focus);
    box-shadow: 0 0 0 3px rgba(184, 212, 184, 0.2);
}

.form-input.error {
    border-color: var(--color-error);
}

.form-textarea {
    resize: vertical;
    min-height: 80px;
}

.error-message {
    display: none;
    color: var(--color-error);
    font-size: var(--font-size-sm);
    margin-top: var(--spacing-1);
}

.error-message.visible {
    display: block;
}

.form-privacy {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    text-align: center;
    margin-top: var(--spacing-4);
    margin-bottom: 0;
}

/* Pain Points Section */
.section-pain-points {
    background-color: var(--color-surface);
}

.pain-points-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-6);
}

.pain-card {
    background: var(--color-background);
    padding: var(--spacing-6);
    border-radius: var(--radius-lg);
    border-left: 4px solid var(--warm-peach);
    transition: var(--transition-normal);
}

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

.pain-icon {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-4);
}

.pain-title {
    font-size: var(--font-size-xl);
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-3);
}

.pain-description {
    font-size: var(--font-size-base);
    color: var(--color-text-secondary);
    line-height: var(--line-height-relaxed);
}

/* Value Proposition Section */
.section-value-prop {
    background-color: var(--cream);
}

.value-props-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-6);
}

.value-card {
    background: var(--color-surface);
    padding: var(--spacing-6);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-normal);
    text-align: center;
}

.value-card-featured {
    background: linear-gradient(135deg, var(--sage-green-light) 0%, var(--warm-white) 100%);
    border: 2px solid var(--sage-green);
}

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

.value-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-4);
}

.value-title {
    font-size: var(--font-size-xl);
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-3);
}

.value-description {
    font-size: var(--font-size-base);
    color: var(--color-text-secondary);
    line-height: var(--line-height-relaxed);
}

/* Services Section */
.section-services {
    background-color: var(--color-surface);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-8);
    max-width: 900px;
    margin: 0 auto;
}

.service-card {
    background: var(--color-surface);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition-normal);
    display: flex;
    flex-direction: column;
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.service-header {
    padding: var(--spacing-8);
    text-align: center;
    color: var(--color-text-primary);
}

.service-header-individual {
    background-color: var(--sage-green-light);
}

.service-header-group {
    background-color: var(--warm-peach-light);
}

.service-header h3 {
    font-size: var(--font-size-2xl);
    margin-bottom: var(--spacing-2);
}

.service-header p {
    font-size: var(--font-size-base);
    opacity: 0.85;
    margin-bottom: 0;
}

.service-body {
    padding: var(--spacing-8);
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.service-list {
    margin-bottom: var(--spacing-6);
    flex-grow: 1;
}

.service-list li {
    margin-bottom: var(--spacing-3);
    padding-left: var(--spacing-6);
    position: relative;
    color: var(--color-text-secondary);
    line-height: var(--line-height-relaxed);
}

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

/* Testimonials Section */
.section-testimonials {
    background-color: var(--cream);
}

.testimonial-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-6);
}

.testimonial-card {
    background: var(--color-surface);
    padding: var(--spacing-8);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    border-left: 4px solid var(--sage-green);
    display: flex;
    flex-direction: column;
}

.testimonial-quote {
    font-size: var(--font-size-lg);
    color: var(--color-text-primary);
    line-height: var(--line-height-relaxed);
    margin-bottom: var(--spacing-6);
    flex-grow: 1;
}

.testimonial-footer {
    margin-top: auto;
}

.testimonial-author {
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-1);
}

.testimonial-role {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

/* CTA Section */
.section-cta {
    background: linear-gradient(135deg, var(--sage-green-light) 0%, var(--warm-peach-light) 100%);
}

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

.cta-title {
    font-size: var(--font-size-3xl);
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-4);
}

.cta-subtitle {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-8);
}

.cta-note {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    margin-top: var(--spacing-4);
}

/* Footer */
.footer {
    background: var(--neutral-900);
    color: var(--color-text-inverse);
    padding: var(--spacing-16) 0 var(--spacing-8);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-10);
    margin-bottom: var(--spacing-10);
}

.footer h4 {
    color: var(--sage-green-light);
    margin-bottom: var(--spacing-4);
    font-size: var(--font-size-lg);
}

.footer-description {
    color: rgba(255, 255, 255, 0.7);
    font-size: var(--font-size-sm);
    line-height: var(--line-height-relaxed);
}

.footer-links li {
    margin-bottom: var(--spacing-2);
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    font-size: var(--font-size-sm);
}

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

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--spacing-6);
    text-align: center;
    color: rgba(255, 255, 255, 0.5);
    font-size: var(--font-size-sm);
}

.footer-bottom p {
    margin-bottom: 0;
}

/* Responsive Design - Mobile First */

/* Tablet: 768px and up */
@media (min-width: 768px) {
    :root {
        --font-size-4xl: 3rem;  /* 48px */
    }

    .container {
        padding-left: var(--container-padding-desktop);
        padding-right: var(--container-padding-desktop);
    }

    .section {
        padding: var(--spacing-16) 0;
    }

    .hero-text h1 {
        font-size: 2.5rem;
    }

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

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

/* Desktop: 1024px and up */
@media (min-width: 1024px) {
    .hero-text h1 {
        font-size: 3rem;
    }

    .pain-points-grid {
        grid-template-columns: repeat(4, 1fr);
    }

    .value-props-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* Mobile: Below 768px */
@media (max-width: 767px) {
    .hero-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-8);
    }

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

    .hero-text h1 {
        font-size: 1.75rem;
    }

    .hero-subtitle {
        font-size: var(--font-size-base);
    }

    .hero-trust-badges {
        justify-content: center;
    }

    .nav-links {
        gap: var(--spacing-4);
    }

    .nav-link {
        display: none;
    }

    .section {
        padding: var(--spacing-10) 0;
    }

    .section-title {
        font-size: var(--font-size-2xl);
    }

    .section-subtitle {
        font-size: var(--font-size-base);
    }

    .pain-points-grid,
    .value-props-grid,
    .services-grid,
    .testimonial-grid {
        grid-template-columns: 1fr;
    }

    .lead-form-card {
        padding: var(--spacing-6);
    }
}

/* Performance Optimizations */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}