/**
 * Alta Home Buyers - Main Stylesheet
 * Modern, elegant, high-converting design
 */

:root {
    /* Brand Colors */
    --color-gold: #CBA455;
    --color-gold-light: #E5C97A;
    --color-gold-dark: #A89045;
    --color-green: #092531; /* Dark green */
    --color-green-light: #0F3A4A;
    --color-green-dark: #051A22;
    
    /* Light Theme (Default) */
    --bg-primary: #FFFFFF;
    --bg-secondary: #F8F9FA;
    --bg-tertiary: #F1F3F5;
    --text-primary: #1A1A1A;
    --text-secondary: #4A5568;
    --text-muted: #718096;
    --border-color: #E2E8F0;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.07);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1);
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-heading: 'Playfair Display', Georgia, serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    
    /* Transitions */
    --transition: all 0.3s ease;
}

/* Dark Theme - Computed from primary green #092531 */
[data-theme="dark"] {
    --bg-primary: #092531; /* Primary green as main background */
    --bg-secondary: #0D3542; /* Lighter shade of primary green */
    --bg-tertiary: #124A5A; /* Even lighter for accents */
    --text-primary: #F1F5F9; /* Light text for contrast */
    --text-secondary: #CBD5E1; /* Medium light text */
    --text-muted: #94A3B8; /* Muted light text */
    --border-color: #0D3542; /* Subtle borders */
    --shadow: 0 4px 6px rgba(9, 37, 49, 0.5);
    --shadow-lg: 0 10px 25px rgba(9, 37, 49, 0.7);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    line-height: 1.2;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.75rem, 4vw, 2.5rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); }
h4 { font-size: clamp(1.25rem, 2.5vw, 1.5rem); }

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

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

a:hover {
    color: var(--color-gold-light);
}

/* Phone Link Styles */
.phone-link {
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
}

.phone-link:hover {
    color: var(--color-gold) !important;
    text-decoration: underline;
    transform: scale(1.02);
}

.phone-link:active {
    transform: scale(0.98);
}

/* Mobile - show tap indicator */
@media (max-width: 768px) {
    .phone-link {
        -webkit-tap-highlight-color: rgba(203, 164, 85, 0.3);
    }
    
    .phone-link:active {
        opacity: 0.8;
    }
}

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

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

/* Header */
.site-header {
    background-color: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) 0;
}

.navbar-brand {
    flex-shrink: 0;
}

.logo-link {
    display: block;
}

.logo-img {
    height: 50px;
    width: auto;
    transition: var(--transition);
}

[data-theme="dark"] .logo-img {
    filter: brightness(1.1);
}

.navbar-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.nav-link {
    color: var(--text-primary);
    font-weight: 500;
    font-size: 0.95rem;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: 4px;
    transition: var(--transition);
}

.nav-link:hover {
    color: var(--color-gold);
    background-color: var(--bg-secondary);
}

.nav-link.active {
    color: var(--color-gold);
}

.nav-phone {
    background-color: var(--color-gold);
    color: #000;
    font-weight: 600;
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: 6px;
}

.nav-phone:hover {
    background-color: var(--color-gold-light);
    color: #000;
}

.theme-toggle {
    background: none;
    border: 1px solid var(--border-color);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
    font-size: 1.2rem;
}

.theme-toggle:hover {
    background-color: var(--bg-secondary);
    border-color: var(--color-gold);
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
}

.mobile-menu-toggle span {
    width: 25px;
    height: 2px;
    background-color: var(--text-primary);
    transition: var(--transition);
}

@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: flex;
    }
    
    .navbar-menu {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: var(--bg-primary);
        border-top: 1px solid var(--border-color);
        flex-direction: column;
        padding: var(--spacing-md);
        gap: var(--spacing-sm);
        display: none;
        box-shadow: var(--shadow-lg);
    }
    
    .navbar-menu.active {
        display: flex;
    }
    
    .nav-link {
        width: 100%;
        text-align: center;
        padding: var(--spacing-sm);
    }
    
    /* Mobile-specific layout shift prevention */
    .hero {
        min-height: 550px;
    }
    
    .form-card {
        min-height: 600px;
    }
    
    .form-group {
        min-height: 95px;
    }
}

/* Buttons */
.btn {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-lg);
    font-weight: 600;
    font-size: 1rem;
    text-align: center;
    border-radius: 6px;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    font-family: var(--font-primary);
    position: relative;
    z-index: 12;
    pointer-events: auto;
    /* Prevent layout shift - consistent button height */
    min-height: 48px;
    line-height: 1.5;
}

.btn-primary {
    background-color: var(--color-gold);
    color: #000;
}

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

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

.btn-secondary:hover {
    background-color: var(--color-gold);
    color: #000;
}

.btn-large {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: 1.1rem;
}

/* Hero Section */
.hero {
    padding: var(--spacing-2xl) 0;
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
    position: relative;
    overflow: hidden;
    min-height: 600px; /* Prevent layout shift */
}

/* Hero background image - positioned absolutely behind content */
.hero-background-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
}

.hero-background-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    opacity: 0.1;
    /* Optimize LCP image loading */
    image-rendering: -webkit-optimize-contrast;
    image-rendering: crisp-edges;
    /* Prevent layout shift */
    display: block;
    aspect-ratio: 2/1;
}

/* Desktop gets wider aspect ratio */
@media (min-width: 769px) {
    .hero-background-image img {
        aspect-ratio: 2.4/1;
    }
}

/* Fallback for browsers that don't support picture */
.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: url('/assets/images/Alta_Home-1920x800.jpg');
    background-size: cover;
    background-position: center;
    opacity: 0.1;
    z-index: 0;
    display: none; /* Hide if picture element is supported */
}

@supports not (display: contents) {
    .hero::before {
        display: block;
    }
    .hero-background-image {
        display: none;
    }
}

.hero-content {
    position: relative;
    z-index: 1;
    /* Prevent layout shift */
    contain: layout style paint;
}

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

@media (min-width: 992px) {
    .hero-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    /* Desktop-specific layout shift prevention */
    .hero {
        min-height: 750px;
    }
    
    .form-card {
        min-height: 700px;
    }
}

.hero-text h1 {
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
    /* Prevent layout shift - reserve space for heading */
    min-height: 3.5rem;
}

.hero-text .subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
}

.hero-badges {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    margin-top: var(--spacing-lg);
}

.badge {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-sm);
    background-color: var(--bg-secondary);
    border-radius: 6px;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* Form Styles */
.form-card {
    background-color: var(--bg-primary);
    border-radius: 12px;
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color);
    position: relative;
    z-index: 10;
    /* Conservative layout shift prevention - explicit dimensions only */
    min-height: 680px;
    height: auto;
    contain: layout;
}

.form-card * {
    position: relative;
    z-index: 11;
}

.form-group {
    margin-bottom: var(--spacing-md);
    /* Prevent layout shift - increased to account for error messages */
    min-height: 95px;
    contain: layout;
}

.form-label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 500;
    color: var(--text-primary);
    font-size: 0.9rem;
    /* Prevent layout shift */
    min-height: 1.5rem;
    line-height: 1.5;
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: var(--spacing-sm);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-family: var(--font-primary);
    font-size: 1rem;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    transition: var(--transition);
    position: relative;
    z-index: 12;
    pointer-events: auto;
    /* Prevent layout shift */
    min-height: 48px;
    box-sizing: border-box;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--color-gold);
    box-shadow: 0 0 0 3px rgba(203, 164, 85, 0.1);
}

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

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

@media (min-width: 768px) {
    .form-row {
        grid-template-columns: 1fr 1fr;
    }
}

.form-error {
    color: #E53E3E;
    font-size: 0.875rem;
    margin-top: var(--spacing-xs);
    /* Reserve space to prevent layout shift */
    min-height: 1.25rem;
    visibility: hidden;
    opacity: 0;
    transition: opacity 0.2s ease;
}

.form-error.show {
    visibility: visible;
    opacity: 1;
}

.honeypot {
    position: absolute;
    left: -9999px;
    opacity: 0;
    pointer-events: none;
}

/* Hide reCAPTCHA badge to prevent layout shift */
.grecaptcha-badge {
    visibility: hidden;
    opacity: 0;
    position: fixed !important;
    bottom: 0 !important;
    right: 0 !important;
    /* Prevent any layout impact */
    width: 0 !important;
    height: 0 !important;
    overflow: hidden !important;
}

/* Sections */
.section {
    padding: var(--spacing-2xl) 0;
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--spacing-xl);
}

.section-header h2 {
    margin-bottom: var(--spacing-sm);
}

.section-header p {
    font-size: 1.1rem;
    color: var(--text-secondary);
}

/* Process Steps */
.steps-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

@media (min-width: 768px) {
    .steps-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.step-card {
    background-color: var(--bg-secondary);
    padding: var(--spacing-xl);
    border-radius: 12px;
    text-align: center;
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.step-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-gold);
}

.step-number {
    font-size: 3rem;
    font-weight: 700;
    color: var(--color-gold);
    margin-bottom: var(--spacing-sm);
    font-family: var(--font-heading);
}

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

/* Metrics */
.metrics {
    background-color: var(--bg-secondary);
    padding: var(--spacing-xl) 0;
}

.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
    text-align: center;
}

.metric-item h4 {
    font-size: 2.5rem;
    color: var(--color-gold);
    margin-bottom: var(--spacing-xs);
}

.metric-item p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Footer */
.site-footer {
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
    margin-top: var(--spacing-2xl);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

@media (min-width: 768px) {
    .footer-grid {
        grid-template-columns: 2fr 1fr 1fr 1fr;
    }
}

.footer-logo-img {
    height: 50px;
    width: auto;
    margin-bottom: var(--spacing-md);
    opacity: 0.9;
}

.footer-description {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.6;
}

.footer-heading {
    font-size: 1.1rem;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

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

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

.footer-links a {
    color: var(--text-secondary);
    font-size: 0.9rem;
    transition: var(--transition);
}

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

.footer-legal {
    margin-top: var(--spacing-md);
    font-size: 0.85rem;
    color: var(--text-muted);
}

.footer-legal a {
    color: var(--text-muted);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--border-color);
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* Utility Classes */
.text-center { text-align: center; }
.text-gold { color: var(--color-gold); }
.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }

/* Loading States */
.loading {
    opacity: 0.6;
    pointer-events: none;
}

/* Success/Error Messages */
.alert {
    padding: var(--spacing-md);
    border-radius: 6px;
    margin-bottom: var(--spacing-md);
}

.alert-success {
    background-color: #C6F6D5;
    color: #22543D;
    border: 1px solid #9AE6B4;
}

.alert-error {
    background-color: #FED7D7;
    color: #742A2A;
    border: 1px solid #FC8181;
}

[data-theme="dark"] .alert-success {
    background-color: #22543D;
    color: #C6F6D5;
    border-color: #2F855A;
}

[data-theme="dark"] .alert-error {
    background-color: #742A2A;
    color: #FED7D7;
    border-color: #C53030;
}

/* Email Modal Styles */
.email-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md);
}

.email-modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
}

.email-modal-content {
    position: relative;
    background-color: var(--bg-primary);
    border-radius: 12px;
    padding: var(--spacing-xl);
    max-width: 500px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color);
    z-index: 10001;
}

.email-modal-close {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    background: none;
    border: none;
    font-size: 2rem;
    line-height: 1;
    color: var(--text-secondary);
    cursor: pointer;
    padding: var(--spacing-xs);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: var(--transition);
}

.email-modal-close:hover {
    background-color: var(--bg-secondary);
    color: var(--text-primary);
}

@media (max-width: 768px) {
    .email-modal-content {
        padding: var(--spacing-lg);
        max-width: 100%;
        margin: var(--spacing-md);
    }
    
    .email-modal-close {
        top: var(--spacing-sm);
        right: var(--spacing-sm);
    }
}