/* ===========================
   CSS Variables & Reset
   =========================== */
:root {
    /* Light Mode Colors */
    --primary-color: #0B1F3A;
    --secondary-color: #1a3a5c;
    --accent-color: #2563eb;
    --text-primary: #1f2937;
    --text-secondary: #6b7280;
    --bg-primary: #ffffff;
    --bg-secondary: #f9fafb;
    --bg-tertiary: #f3f4f6;
    --border-color: #e5e7eb;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1);
    
    /* Typography */
    --font-primary: 'Inter', sans-serif;
    --font-heading: 'Playfair Display', serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    
    /* Transitions */
    --transition-fast: 150ms ease-in-out;
    --transition-base: 250ms ease-in-out;
    --transition-slow: 350ms ease-in-out;
}

/* Dark Mode Variables */
body.dark-mode {
    --primary-color: #1e40af;
    --secondary-color: #3b82f6;
    --accent-color: #60a5fa;
    --text-primary: #f9fafb;
    --text-secondary: #d1d5db;
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    --border-color: #475569;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.4);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.3);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.3);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.3);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    color: var(--text-primary);
    background-color: var(--bg-primary);
    line-height: 1.6;
    transition: background-color var(--transition-base), color var(--transition-base);
}

/* ===========================
   Typography
   =========================== */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    color: var(--text-primary);
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1.125rem; }

p {
    font-size: 1.125rem;
    line-height: 1.8;
    color: var(--text-secondary);
}

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

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

.section-header {
    text-align: center;
    max-width: 800px;
    margin: 0 auto var(--spacing-xl);
}

.section-title {
    margin-bottom: var(--spacing-md);
}

.section-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
}

/* ===========================
   Navigation
   =========================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
    padding: var(--spacing-sm) 0;
    z-index: 1000;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-md);
}

.logo h2 {
    font-size: 1.5rem;
    color: var(--primary-color);
    font-family: var(--font-heading);
}

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

.theme-toggle,
.lang-toggle {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-xs) var(--spacing-sm);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 0.875rem;
    color: var(--text-primary);
    transition: all var(--transition-fast);
}

.theme-toggle:hover,
.lang-toggle:hover {
    background: var(--bg-tertiary);
    transform: translateY(-2px);
}

.theme-toggle i {
    font-size: 1rem;
}

.lang-flag {
    font-size: 1.25rem;
}

/* ===========================
   Buttons
   =========================== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 0.875rem 1.75rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 1rem;
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: all var(--transition-base);
    font-family: var(--font-primary);
}

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

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

.btn-hero {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: 1.25rem 2.5rem;
    font-size: 1.125rem;
    box-shadow: var(--shadow-lg);
}

.btn-hero:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.btn-large {
    padding: 1.125rem 2.25rem;
    font-size: 1.125rem;
    width: 100%;
    justify-content: center;
}

/* ===========================
   Hero Section
   =========================== */
.hero {
    padding: calc(var(--spacing-2xl) + 80px) 0 var(--spacing-2xl);
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    min-height: 90vh;
    display: flex;
    align-items: center;
}

.hero-content {
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
}

.hero-title {
    margin-bottom: var(--spacing-md);
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.375rem;
    margin-bottom: var(--spacing-xl);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.hero-trust {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.trust-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 1rem;
    color: var(--text-secondary);
}

.trust-item i {
    color: var(--primary-color);
    font-size: 1.25rem;
}

/* ===========================
   Why Planning Section
   =========================== */
.why-planning {
    background-color: var(--bg-secondary);
}

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

.why-card {
    background-color: var(--bg-primary);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    text-align: center;
    transition: all var(--transition-base);
    border: 1px solid var(--border-color);
}

.why-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.why-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-md);
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.why-icon i {
    font-size: 2rem;
    color: white;
}

.why-card h3 {
    margin-bottom: var(--spacing-sm);
    color: var(--primary-color);
}

.why-card p {
    font-size: 1rem;
}

/* ===========================
   Solutions Section
   =========================== */
.solutions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.solution-card {
    background-color: var(--bg-secondary);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    border: 2px solid var(--border-color);
    transition: all var(--transition-base);
    position: relative;
}

.solution-card.featured {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    border-color: var(--primary-color);
    color: white;
    transform: scale(1.05);
}

.solution-card.featured h3,
.solution-card.featured .solution-features li {
    color: white;
}

.solution-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.solution-card.featured:hover {
    transform: translateY(-8px) scale(1.05);
}

.badge {
    position: absolute;
    top: -12px;
    right: var(--spacing-md);
    background-color: #fbbf24;
    color: var(--primary-color);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-xl);
    font-size: 0.875rem;
    font-weight: 700;
    box-shadow: var(--shadow-md);
}

.solution-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto var(--spacing-md);
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.solution-card:not(.featured) .solution-icon {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
}

.solution-icon i {
    font-size: 1.75rem;
    color: white;
}

.solution-card h3 {
    text-align: center;
    margin-bottom: var(--spacing-md);
    color: var(--primary-color);
}

.solution-features {
    list-style: none;
}

.solution-features li {
    padding: var(--spacing-sm) 0;
    padding-left: var(--spacing-lg);
    position: relative;
    color: var(--text-secondary);
}

.solution-features li::before {
    content: "✓";
    position: absolute;
    left: 0;
    font-weight: 700;
    color: var(--primary-color);
}

.solution-card.featured .solution-features li::before {
    color: #fbbf24;
}

.disclaimer {
    background-color: var(--bg-secondary);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    border-left: 4px solid var(--accent-color);
    display: flex;
    gap: var(--spacing-sm);
    align-items: flex-start;
}

.disclaimer i {
    color: var(--accent-color);
    margin-top: 4px;
    flex-shrink: 0;
}

.disclaimer p {
    font-size: 0.875rem;
    margin: 0;
}

/* ===========================
   How It Works Section
   =========================== */
.how-it-works {
    background-color: var(--bg-secondary);
}

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

.step {
    text-align: center;
    position: relative;
}

.step-number {
    width: 70px;
    height: 70px;
    margin: 0 auto var(--spacing-md);
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    font-weight: 700;
    font-family: var(--font-heading);
    box-shadow: var(--shadow-lg);
}

.step-content h3 {
    margin-bottom: var(--spacing-sm);
    color: var(--primary-color);
    font-size: 1.375rem;
}

.step-content p {
    font-size: 1rem;
}

/* ===========================
   About Section
   =========================== */
.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
}

.about-text p {
    margin-bottom: var(--spacing-md);
}

.about-contact {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-lg);
}

.contact-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 1.125rem;
    color: var(--text-primary);
}

.contact-item i {
    color: var(--primary-color);
    width: 24px;
}

.about-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.image-placeholder {
    width: 300px;
    height: 300px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-xl);
}

.image-placeholder i {
    font-size: 8rem;
    color: rgba(255, 255, 255, 0.3);
}

/* ===========================
   FAQ Section
   =========================== */
.faq {
    background-color: var(--bg-secondary);
}

.faq-container {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
    overflow: hidden;
    transition: all var(--transition-base);
}

.faq-item:hover {
    box-shadow: var(--shadow-md);
}

.faq-question {
    width: 100%;
    background: none;
    border: none;
    padding: var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    text-align: left;
    transition: all var(--transition-fast);
}

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

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

.faq-item.active .faq-question i {
    transform: rotate(180deg);
}

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

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

.faq-answer p {
    padding: 0 var(--spacing-md) var(--spacing-md);
    font-size: 1rem;
}

/* ===========================
   Contact Form Section
   =========================== */
.contact-form {
    background-color: var(--bg-primary);
}

.form {
    max-width: 700px;
    margin: 0 auto;
    background-color: var(--bg-secondary);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

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

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group label {
    margin-bottom: var(--spacing-xs);
    font-weight: 600;
    color: var(--text-primary);
    font-size: 1rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: var(--spacing-sm);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-family: var(--font-primary);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    transition: all var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(11, 31, 58, 0.1);
}

.form-privacy {
    background-color: var(--bg-tertiary);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    display: flex;
    gap: var(--spacing-sm);
    align-items: flex-start;
    margin-bottom: var(--spacing-md);
}

.form-privacy i {
    color: var(--primary-color);
    margin-top: 4px;
}

.form-privacy p {
    font-size: 0.875rem;
    margin: 0;
}

.form-success {
    display: none;
    background-color: #d1fae5;
    color: #065f46;
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    text-align: center;
    margin-top: var(--spacing-md);
    align-items: center;
    gap: var(--spacing-sm);
    justify-content: center;
}

.form-success.show {
    display: flex;
}

.form-success i {
    font-size: 1.5rem;
}

/* ===========================
   Footer
   =========================== */
.footer {
    background-color: var(--primary-color);
    color: white;
    padding: var(--spacing-2xl) 0 var(--spacing-md);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-section h3,
.footer-section h4 {
    color: white;
    margin-bottom: var(--spacing-md);
}

.footer-section p {
    color: rgba(255, 255, 255, 0.8);
    font-size: 1rem;
    margin-bottom: var(--spacing-xs);
}

.footer-section i {
    margin-right: var(--spacing-xs);
}

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

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

.footer-links a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: white;
}

.footer-disclaimer {
    background-color: rgba(0, 0, 0, 0.2);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
}

.footer-disclaimer p {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.9);
    margin: 0;
}

/* Logo image */
.logo img {
    height: 48px;
    display: block;
}

/* About image (Milena) */
.image-photo {
    width: 300px;
    height: 300px;
    border-radius: 50%;
    object-fit: cover;
    box-shadow: var(--shadow-xl);
    border: 4px solid rgba(255,255,255,0.06);
}

/* WhatsApp Floating Button */
.whatsapp-fab {
    position: fixed;
    right: 20px;
    bottom: 20px;
    width: 64px;
    height: 64px;
    background-color: #25D366;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 6px 18px rgba(37,211,102,0.25);
    z-index: 9999;
    text-decoration: none;
    transition: transform var(--transition-fast);
}

.whatsapp-fab:hover {
    transform: translateY(-4px);
}

.whatsapp-fab i {
    font-size: 1.6rem;
}

/* Pulse effect */
.whatsapp-fab::after {
    content: '';
    position: absolute;
    width: 64px;
    height: 64px;
    border-radius: 50%;
    left: 0;
    top: 0;
    background: rgba(37,211,102,0.35);
    animation: pulse 2s infinite;
    z-index: -1;
}

@keyframes pulse {
    0% { transform: scale(1); opacity: 0.9; }
    70% { transform: scale(1.9); opacity: 0; }
    100% { transform: scale(1.9); opacity: 0; }
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(255, 255, 255, 0.2);
}

.footer-bottom p {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.7);
}

/* ===========================
   Responsive Design
   =========================== */
@media (max-width: 768px) {
    .nav-content {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .nav-controls {
        width: 100%;
        justify-content: center;
    }
    
    .nav-controls .btn-primary {
        flex: 1;
    }
    
    .hero {
        padding-top: calc(var(--spacing-xl) + 120px);
        min-height: auto;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1.125rem;
    }
    
    .hero-trust {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .why-grid {
        grid-template-columns: 1fr;
    }
    
    .solutions-grid {
        grid-template-columns: 1fr;
    }
    
    .solution-card.featured {
        transform: scale(1);
    }
    
    .solution-card.featured:hover {
        transform: translateY(-8px) scale(1);
    }
    
    .steps-container {
        grid-template-columns: 1fr;
    }
    
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .about-image {
        order: -1;
    }
    
    .image-placeholder {
        width: 200px;
        height: 200px;
    }
    
    .image-placeholder i {
        font-size: 5rem;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
}

@media (max-width: 480px) {
    :root {
        --spacing-xl: 2rem;
        --spacing-2xl: 3rem;
    }
    
    .section {
        padding: var(--spacing-xl) 0;
    }
    
    .btn {
        padding: 0.75rem 1.25rem;
        font-size: 0.875rem;
    }
    
    .btn-hero {
        padding: 1rem 1.5rem;
        font-size: 1rem;
    }
    
    .theme-toggle,
    .lang-toggle {
        padding: var(--spacing-xs);
        font-size: 0.75rem;
    }
}

/* ===========================
   Animations
   =========================== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease-out forwards;
}

/* Smooth transitions for theme changes */
* {
    transition: background-color var(--transition-base), 
                color var(--transition-base), 
                border-color var(--transition-base);
}