/* ==========================================
   Support for Accountants - Main Stylesheet
   Modern, clean design with compliance focus
   ========================================== */

/* ==========================================
   CSS Variables & Root Styles
   ========================================== */
:root {
    /* Colors - Professional blue/green palette with security focus */
    --primary-color: #1e5a8e;
    --primary-dark: #164570;
    --secondary-color: #2d7a3e;
    --accent-color: #f0f7ff;
    --text-dark: #1a1a1a;
    --text-medium: #4a4a4a;
    --text-light: #6b6b6b;
    --border-color: #e0e0e0;
    --background-light: #f9fafb;
    --white: #ffffff;
    --success: #2d7a3e;
    --error: #c53030;
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --heading-weight: 600;
    --body-weight: 400;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
    --spacing-xxl: 6rem;
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    
    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-base: 0.25s ease;
    --transition-slow: 0.35s ease;
}

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

html {
    scroll-behavior: smooth;
}

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

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

/* ==========================================
   Typography
   ========================================== */
h1, h2, h3, h4, h5, h6 {
    font-weight: var(--heading-weight);
    line-height: 1.2;
    color: var(--text-dark);
    margin-bottom: var(--spacing-sm);
}

h1 {
    font-size: clamp(2rem, 5vw, 3.5rem);
}

h2 {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    margin-bottom: var(--spacing-md);
}

h3 {
    font-size: clamp(1.25rem, 3vw, 1.75rem);
}

p {
    margin-bottom: var(--spacing-sm);
    color: var(--text-medium);
}

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

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

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

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

@media (max-width: 768px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
}

/* ==========================================
   Buttons
   ========================================== */
.btn {
    display: inline-block;
    padding: 1rem 2rem;
    font-size: 1rem;
    font-weight: 500;
    text-align: center;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
    text-decoration: none;
    line-height: 1.5;
}

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

.btn-primary:hover {
    background-color: var(--primary-dark);
    box-shadow: var(--shadow-md);
    transform: translateY(-1px);
    color: var(--white);
}

.btn-secondary {
    background-color: var(--white);
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.btn-secondary:hover {
    background-color: var(--accent-color);
    color: var(--primary-dark);
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
}

/* ==========================================
   Hero Section
   ========================================== */
.hero {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: var(--white);
    padding: var(--spacing-xxl) 0 var(--spacing-xl);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(circle at 20% 50%, rgba(255, 255, 255, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(255, 255, 255, 0.05) 0%, transparent 50%);
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 900px;
    margin: 0 auto;
}

.hero-logo {
    max-width: 280px;
    height: auto;
    margin-bottom: var(--spacing-md);
    filter: brightness(0) invert(1);
    display: block;
    margin-left: auto;
    margin-right: auto;
}

@media (max-width: 768px) {
    .hero-logo {
        max-width: 200px;
    }
}

.hero h1 {
    color: var(--white);
    margin-bottom: var(--spacing-md);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.hero-subhead {
    font-size: clamp(1.125rem, 2.5vw, 1.375rem);
    color: rgba(255, 255, 255, 0.95);
    margin-bottom: var(--spacing-lg);
    line-height: 1.6;
}

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

@media (max-width: 768px) {
    .hero {
        padding: var(--spacing-xl) 0 var(--spacing-lg);
    }
    
    .hero-ctas {
        flex-direction: column;
        align-items: stretch;
    }
    
    .hero-ctas .btn {
        width: 100%;
    }
}

/* ==========================================
   Trust Strip
   ========================================== */
.trust-strip {
    background-color: var(--background-light);
    padding: var(--spacing-lg) 0;
    border-bottom: 1px solid var(--border-color);
}

.trust-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: var(--spacing-md);
}

.trust-item {
    text-align: center;
    padding: var(--spacing-sm);
}

.trust-icon {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
}

.trust-item p {
    font-size: 0.95rem;
    color: var(--text-medium);
    line-height: 1.5;
}

@media (max-width: 768px) {
    .trust-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }
}

/* ==========================================
   Services Section
   ========================================== */
.services {
    padding: var(--spacing-xxl) 0;
    background-color: var(--white);
}

.services h2 {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
}

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

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

.service-icon {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
}

.service-card h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
    color: var(--text-dark);
}

.service-card p {
    font-size: 0.95rem;
    color: var(--text-light);
    line-height: 1.6;
}

/* ==========================================
   Testimonials Section
   ========================================== */
.testimonials {
    padding: var(--spacing-xxl) 0;
    background-color: var(--accent-color);
}

.testimonials h2 {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

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

.testimonial-card {
    background-color: var(--white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    box-shadow: var(--shadow-md);
}

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

.testimonial-content p {
    font-style: italic;
    color: var(--text-medium);
    line-height: 1.7;
}

.testimonial-author {
    font-size: 0.9rem;
    color: var(--text-light);
}

.testimonial-author strong {
    color: var(--text-dark);
}

/* ==========================================
   Why Us Section
   ========================================== */
.why-us {
    padding: var(--spacing-xxl) 0;
    background-color: var(--white);
}

.why-us h2 {
    text-align: center;
    margin-bottom: var(--spacing-md);
}

.why-intro {
    font-size: 1.125rem;
    max-width: 900px;
    margin: 0 auto var(--spacing-lg);
    text-align: center;
    color: var(--text-medium);
    line-height: 1.7;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
    max-width: 800px;
    margin: 0 auto;
}

.stat-item {
    text-align: center;
    padding: var(--spacing-md);
    background-color: var(--accent-color);
    border-radius: var(--radius-lg);
}

.stat-number {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: var(--spacing-xs);
}

.stat-label {
    font-size: 0.95rem;
    color: var(--text-medium);
}

/* ==========================================
   Checklist Section
   ========================================== */
.checklist-section {
    padding: var(--spacing-xxl) 0;
    background: linear-gradient(135deg, var(--secondary-color) 0%, #236c32 100%);
    color: var(--white);
}

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

.checklist-text h2 {
    color: var(--white);
    margin-bottom: var(--spacing-md);
}

.checklist-benefits {
    list-style: none;
    padding: 0;
}

.checklist-benefits li {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
    font-size: 1.05rem;
    color: rgba(255, 255, 255, 0.95);
}

.checklist-benefits i {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.25rem;
    flex-shrink: 0;
    margin-top: 2px;
}

.checklist-form-wrapper {
    background-color: var(--white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    box-shadow: var(--shadow-lg);
}

@media (max-width: 968px) {
    .checklist-content {
        grid-template-columns: 1fr;
    }
}

/* ==========================================
   FAQ Section
   ========================================== */
.faq {
    padding: var(--spacing-xxl) 0;
    background-color: var(--background-light);
}

.faq h2 {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.faq-list {
    max-width: 900px;
    margin: 0 auto;
}

.faq-item {
    background-color: var(--white);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-sm);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.faq-question {
    width: 100%;
    padding: var(--spacing-md);
    background-color: var(--white);
    border: none;
    text-align: left;
    font-size: 1.125rem;
    font-weight: 500;
    color: var(--text-dark);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-sm);
    transition: background-color var(--transition-base);
}

.faq-question:hover {
    background-color: var(--accent-color);
}

.faq-question i {
    color: var(--primary-color);
    transition: transform var(--transition-base);
}

.faq-question[aria-expanded="true"] i {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-slow);
}

.faq-answer p {
    padding: 0 var(--spacing-md) var(--spacing-md);
    color: var(--text-medium);
    line-height: 1.7;
}

.faq-item.active .faq-answer {
    max-height: 500px;
}

/* ==========================================
   Contact Section
   ========================================== */
.contact {
    padding: var(--spacing-xxl) 0;
    background-color: var(--white);
}

.contact h2 {
    text-align: center;
    margin-bottom: var(--spacing-sm);
}

.contact-intro {
    text-align: center;
    font-size: 1.125rem;
    max-width: 700px;
    margin: 0 auto var(--spacing-lg);
    color: var(--text-medium);
}

.contact-form {
    max-width: 700px;
    margin: 0 auto;
}

/* ==========================================
   Forms
   ========================================== */
.form-group {
    margin-bottom: var(--spacing-md);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
}

@media (max-width: 768px) {
    .form-row {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }
}

label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 500;
    color: var(--text-dark);
}

input[type="text"],
input[type="email"],
input[type="tel"],
textarea {
    width: 100%;
    padding: 0.875rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-family: var(--font-family);
    font-size: 1rem;
    transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

input[type="text"]:focus,
input[type="email"]:focus,
input[type="tel"]:focus,
textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(30, 90, 142, 0.1);
}

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

.error-message {
    display: block;
    color: var(--error);
    font-size: 0.875rem;
    margin-top: var(--spacing-xs);
    min-height: 1.2em;
}

textarea {
    resize: vertical;
    min-height: 120px;
}

.checkbox-group label {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-weight: normal;
}

input[type="checkbox"] {
    width: auto;
    margin: 0;
}

/* Honeypot field - hidden from users, visible to bots */
.honeypot {
    position: absolute !important;
    left: -9999px !important;
    width: 1px !important;
    height: 1px !important;
    opacity: 0 !important;
}

.form-success {
    background-color: #f0fdf4;
    border: 1px solid var(--success);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    text-align: center;
    margin-top: var(--spacing-md);
}

.form-success i {
    font-size: 2.5rem;
    color: var(--success);
    margin-bottom: var(--spacing-sm);
}

.form-success p {
    color: var(--success);
    font-weight: 500;
    margin-bottom: var(--spacing-sm);
}

.form-success .btn {
    margin-top: var(--spacing-sm);
}

/* ==========================================
   Footer
   ========================================== */
.footer {
    background-color: var(--text-dark);
    color: rgba(255, 255, 255, 0.8);
    padding: var(--spacing-xl) 0 var(--spacing-md);
}

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

.footer-logo {
    max-width: 180px;
    height: auto;
    margin-bottom: var(--spacing-md);
    filter: brightness(0) invert(1);
}

@media (max-width: 768px) {
    .footer-logo {
        max-width: 150px;
    }
}

.footer-section h4 {
    color: var(--white);
    font-size: 1.125rem;
    margin-bottom: var(--spacing-sm);
}

.footer-section p,
.footer-section a {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.95rem;
}

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

.footer-section ul {
    list-style: none;
    padding: 0;
}

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

.footer-location {
    font-weight: 500;
    color: rgba(255, 255, 255, 0.9);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--spacing-md);
    text-align: center;
}

.disclaimer {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: var(--spacing-sm);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.copyright {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.6);
}

/* ==========================================
   Mobile CTA Bar
   ========================================== */
.mobile-cta-bar {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background-color: var(--white);
    padding: var(--spacing-sm);
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1);
    z-index: 1000;
}

.mobile-cta-bar .btn {
    width: 100%;
    padding: 0.875rem;
}

@media (max-width: 768px) {
    .mobile-cta-bar {
        display: block;
    }
    
    /* Add padding to body to prevent content from being hidden */
    body {
        padding-bottom: 80px;
    }
}

/* ==========================================
   Utility Classes
   ========================================== */
.text-center {
    text-align: center;
}

.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mt-3 { margin-top: var(--spacing-lg); }

.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }

/* ==========================================
   Accessibility Improvements
   ========================================== */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Skip to main content link */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--primary-color);
    color: white;
    padding: 8px;
    text-decoration: none;
    z-index: 100;
}

.skip-link:focus {
    top: 0;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .btn-primary {
        border: 2px solid var(--white);
    }
    
    .btn-secondary {
        border-width: 3px;
    }
}