/* ===================================
   CSS Reset & Base Styles
   =================================== */

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

:root {
    /* Colors - Black & White Theme */
    --color-black: #000000;
    --color-white: #FFFFFF;
    --color-gray-50: #F9FAFB;
    --color-gray-100: #F3F4F6;
    --color-gray-200: #E5E7EB;
    --color-gray-300: #D1D5DB;
    --color-gray-400: #9CA3AF;
    --color-gray-500: #6B7280;
    --color-gray-600: #4B5563;
    --color-gray-700: #374151;
    --color-gray-800: #1F2937;
    --color-gray-900: #111827;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;
    
    /* Typography */
    --font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'SF Pro Text', 'Segoe UI', system-ui, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 2rem;
    --font-size-4xl: 2.5rem;
    --font-size-5xl: 3rem;
    
    /* 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;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--color-gray-800);
    background-color: var(--color-white);
}

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.section {
    padding: var(--spacing-3xl) 0;
}

.section-title {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--spacing-2xl);
    color: var(--color-black);
    letter-spacing: -0.02em;
}

.section-text {
    font-size: var(--font-size-lg);
    line-height: 1.8;
    color: var(--color-gray-700);
    margin-bottom: var(--spacing-md);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 0.6s ease-out;
}

/* ===================================
   Header & Navigation
   =================================== */

.header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-gray-200);
    padding: var(--spacing-md) 0;
}

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

.logo img {
    height: 50px;
    width: auto;
    display: block;
}

.nav-list {
    display: flex;
    list-style: none;
    gap: var(--spacing-lg);
    align-items: center;
}

.nav-link {
    color: var(--color-gray-700);
    text-decoration: none;
    font-weight: 500;
    transition: color var(--transition-base);
    font-size: var(--font-size-base);
}

.nav-link:hover {
    color: var(--color-black);
}

.nav-link-primary {
    background-color: var(--color-black);
    color: var(--color-white);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
}

.nav-link-primary:hover {
    background-color: var(--color-gray-800);
    transform: translateY(-1px);
}

.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: 24px;
    height: 2px;
    background-color: var(--color-black);
    transition: all var(--transition-base);
}

/* ===================================
   Hero Section
   =================================== */

.hero {
    background: linear-gradient(135deg, var(--color-gray-50) 0%, var(--color-white) 100%);
    padding: var(--spacing-3xl) 0;
    text-align: center;
}

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

.hero-title {
    font-size: var(--font-size-5xl);
    font-weight: 800;
    color: var(--color-black);
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.03em;
    line-height: 1.1;
}

.hero-subtitle {
    font-size: var(--font-size-xl);
    color: var(--color-gray-600);
    margin-bottom: var(--spacing-xl);
    line-height: 1.6;
}

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

/* ===================================
   Buttons
   =================================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: var(--font-size-base);
    font-weight: 600;
    text-decoration: none;
    border-radius: var(--radius-xl);
    transition: all var(--transition-base);
    border: none;
    cursor: pointer;
    font-family: var(--font-family);
}

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

.btn-primary:hover {
    background-color: var(--color-gray-800);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

.btn-secondary:hover {
    background-color: var(--color-black);
    color: var(--color-white);
    transform: translateY(-2px);
}

/* ===================================
   About Section
   =================================== */

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

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

/* ===================================
   Features Section
   =================================== */

.features {
    background-color: var(--color-gray-50);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-2xl);
}

.feature-card {
    background-color: var(--color-white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    text-align: center;
    transition: all var(--transition-base);
    border: 1px solid var(--color-gray-200);
}

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

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

.feature-title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--color-black);
    margin-bottom: var(--spacing-sm);
}

.feature-text {
    color: var(--color-gray-600);
    line-height: 1.7;
}

/* ===================================
   How It Works Section
   =================================== */

.how-it-works {
    background-color: var(--color-white);
}

.steps {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-2xl);
    flex-wrap: wrap;
}

.step {
    flex: 1;
    text-align: center;
    min-width: 250px;
}

.step-number {
    width: 60px;
    height: 60px;
    background-color: var(--color-black);
    color: var(--color-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-2xl);
    font-weight: 700;
    margin: 0 auto var(--spacing-md);
}

.step-title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--color-black);
    margin-bottom: var(--spacing-sm);
}

.step-text {
    color: var(--color-gray-600);
    line-height: 1.7;
}

.step-arrow {
    font-size: var(--font-size-3xl);
    color: var(--color-gray-400);
}

/* ===================================
   FAQ Section
   =================================== */

.faq {
    background-color: var(--color-gray-50);
}

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

.faq-item {
    background-color: var(--color-white);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-md);
    border: 1px solid var(--color-gray-200);
    overflow: hidden;
}

.faq-question {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-lg);
    background: none;
    border: none;
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-black);
    text-align: left;
    cursor: pointer;
    transition: background-color var(--transition-base);
    font-family: var(--font-family);
}

.faq-question:hover {
    background-color: var(--color-gray-50);
}

.faq-icon {
    font-size: var(--font-size-2xl);
    font-weight: 300;
    transition: transform var(--transition-base);
}

.faq-item.active .faq-icon {
    transform: rotate(45deg);
}

.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-lg) var(--spacing-lg);
    color: var(--color-gray-600);
    line-height: 1.8;
}

.faq-answer a {
    color: var(--color-black);
    text-decoration: underline;
}

/* ===================================
   CTA Section
   =================================== */

.cta {
    background-color: var(--color-black);
    color: var(--color-white);
    text-align: center;
}

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

.cta-title {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
}

.cta-text {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-xl);
    color: var(--color-gray-300);
}

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

.cta .btn-primary:hover {
    background-color: var(--color-gray-100);
}

/* ===================================
   Footer
   =================================== */

.footer {
    background-color: var(--color-white);
    border-top: 1px solid var(--color-gray-200);
    padding: var(--spacing-2xl) 0;
}

.footer-content {
    text-align: center;
}

.footer-logo {
    margin-bottom: var(--spacing-lg);
}

.footer-logo img {
    height: 60px;
    width: auto;
    display: inline-block;
}

.footer-nav {
    display: flex;
    justify-content: center;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
}

.footer-nav a {
    color: var(--color-gray-600);
    text-decoration: none;
    transition: color var(--transition-base);
    font-weight: 500;
}

.footer-nav a:hover {
    color: var(--color-black);
}

.footer-bottom {
    color: var(--color-gray-500);
    font-size: var(--font-size-sm);
}

/* ===================================
   Contact Page Styles
   =================================== */

.contact-hero {
    background: linear-gradient(135deg, var(--color-gray-50) 0%, var(--color-white) 100%);
    padding: var(--spacing-3xl) 0 var(--spacing-2xl);
    text-align: center;
}

.contact-title {
    font-size: var(--font-size-4xl);
    font-weight: 800;
    color: var(--color-black);
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.03em;
}

.contact-subtitle {
    font-size: var(--font-size-xl);
    color: var(--color-gray-600);
    max-width: 700px;
    margin: 0 auto;
}

.contact-section {
    background-color: var(--color-white);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: var(--spacing-3xl);
    align-items: start;
}

.contact-info {
    position: sticky;
    top: 100px;
}

.info-title {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--color-black);
    margin-bottom: var(--spacing-md);
}

.info-text {
    color: var(--color-gray-600);
    line-height: 1.7;
    margin-bottom: var(--spacing-xl);
}

.info-items {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.info-item {
    display: flex;
    gap: var(--spacing-md);
    align-items: start;
}

.info-icon {
    font-size: var(--font-size-2xl);
    flex-shrink: 0;
}

.info-content h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-black);
    margin-bottom: var(--spacing-xs);
}

.info-content p {
    color: var(--color-gray-600);
    font-size: var(--font-size-sm);
}

.info-content a {
    color: var(--color-black);
    text-decoration: underline;
}

.info-note {
    background-color: var(--color-gray-50);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    border-left: 3px solid var(--color-black);
}

.info-note p {
    font-size: var(--font-size-sm);
    color: var(--color-gray-700);
    line-height: 1.6;
}

.info-note a {
    color: var(--color-black);
    text-decoration: underline;
}

/* ===================================
   Contact Form
   =================================== */

.contact-form-container {
    background-color: var(--color-white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    border: 1px solid var(--color-gray-200);
    box-shadow: var(--shadow-lg);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.form-label {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-gray-700);
}

.required {
    color: var(--color-black);
}

.form-input,
.form-select,
.form-textarea {
    padding: var(--spacing-md);
    border: 1px solid var(--color-gray-300);
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
    font-family: var(--font-family);
    transition: all var(--transition-base);
    background-color: var(--color-white);
}

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

.form-input.error,
.form-select.error,
.form-textarea.error {
    border-color: #EF4444;
}

.form-error {
    font-size: var(--font-size-sm);
    color: #EF4444;
    display: none;
}

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

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

.btn-submit {
    position: relative;
    margin-top: var(--spacing-md);
}

.btn-submit.loading .btn-text {
    opacity: 0;
}

.btn-loader {
    display: none;
    position: absolute;
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

.btn-submit.loading .btn-loader {
    display: block;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Alerts */
.alert {
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    margin-top: var(--spacing-md);
}

.alert-success {
    background-color: #D1FAE5;
    color: #065F46;
    border: 1px solid #10B981;
}

.alert-error {
    background-color: #FEE2E2;
    color: #991B1B;
    border: 1px solid #EF4444;
}

/* ===================================
   Resources Section
   =================================== */

.resources {
    background-color: var(--color-gray-50);
}

.resources-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-2xl);
}

.resource-card {
    background-color: var(--color-white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    text-align: center;
    border: 1px solid var(--color-gray-200);
    transition: all var(--transition-base);
}

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

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

.resource-card h3 {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--color-black);
    margin-bottom: var(--spacing-sm);
}

.resource-card p {
    color: var(--color-gray-600);
    line-height: 1.7;
}

.resource-card a {
    color: var(--color-black);
    text-decoration: underline;
}

/* ===================================
   Responsive Design
   =================================== */

@media (max-width: 768px) {
    /* Hide steps arrow on mobile */
    .step-arrow {
        display: none;
    }
    
    .steps {
        flex-direction: column;
    }
    
    /* Mobile Navigation */
    .mobile-menu-toggle {
        display: flex;
    }
    
    .nav-list {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: var(--color-white);
        flex-direction: column;
        padding: var(--spacing-lg);
        box-shadow: var(--shadow-lg);
        border-top: 1px solid var(--color-gray-200);
    }
    
    .nav-list.active {
        display: flex;
    }
    
    /* Typography adjustments */
    .hero-title {
        font-size: var(--font-size-3xl);
    }
    
    .section-title {
        font-size: var(--font-size-3xl);
    }
    
    .contact-title {
        font-size: var(--font-size-3xl);
    }
    
    /* Contact Grid */
    .contact-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }
    
    .contact-info {
        position: static;
    }
    
    /* Hero CTA */
    .hero-cta {
        flex-direction: column;
        align-items: stretch;
    }
    
    .btn {
        width: 100%;
    }
    
    /* Features Grid */
    .features-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-md);
    }
    
    .section {
        padding: var(--spacing-2xl) 0;
    }
    
    .hero-title {
        font-size: var(--font-size-2xl);
    }
    
    .section-title {
        font-size: var(--font-size-2xl);
    }
    
    .contact-form-container {
        padding: var(--spacing-md);
    }
}