:root {
    --primary: #4F46E5; /* Indigo 600 */
    --primary-hover: #4338CA; /* Indigo 700 */
    --secondary: #EC4899; /* Pink 500 */
    --text-main: #1F2937; /* Gray 800 */
    --text-muted: #6B7280; /* Gray 500 */
    --bg-body: #F9FAFB; /* Gray 50 */
    --bg-white: #FFFFFF;
    --border-color: #E5E7EB; /* Gray 200 */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --radius-md: 0.5rem;
    --radius-lg: 1rem;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

* {
    box-sizing: border-box;
}

body {
    font-family: var(--font-sans);
    margin: 0;
    padding: 0;
    line-height: 1.6;
    color: var(--text-main);
    background-color: var(--bg-body);
}

/* Header & Nav */
header {
    background-color: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid var(--border-color);
}

nav {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
}

.logo {
    display: flex;
    align-items: center;
    text-decoration: none;
    color: var(--text-main);
}

.logo img {
    height: 40px;
    margin-right: 12px;
}

.logo span {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-main);
    letter-spacing: -0.025em;
}

.nav-links {
    list-style: none;
    display: flex;
    gap: 32px;
    margin: 0;
    padding: 0;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-muted);
    font-weight: 500;
    transition: color 0.2s;
    font-size: 0.95rem;
}

.nav-links a:hover {
    color: var(--primary);
}

/* Hero Section */
.hero {
    background: white;
    padding: 6rem 2rem;
    position: relative;
    overflow: hidden;
}

.hero-content {
    max-width: 1000px;
    margin: 0 auto;
    text-align: center;
    position: relative;
    z-index: 10;
}

.hero h1 {
    font-size: 3.5rem;
    line-height: 1.2;
    font-weight: 800;
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero p {
    font-size: 1.25rem;
    color: var(--text-muted);
    max-width: 600px;
    margin: 0 auto 2.5rem;
}

.cta-button {
    display: inline-block;
    background-color: var(--primary);
    color: white;
    padding: 1rem 2.5rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    transition: all 0.3s;
    box-shadow: var(--shadow-md);
}

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

/* Sections */
section {
    padding: 5rem 0;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.section-title {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title h2 {
    font-size: 2.25rem;
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 1rem;
}

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

/* Features Grid */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2.5rem;
}

.feature-card {
    background: var(--bg-white);
    padding: 2.5rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
}

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

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    display: inline-block;
}

.feature-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin: 0 0 1rem;
    color: var(--text-main);
}

.feature-card p {
    color: var(--text-muted);
    margin: 0;
    line-height: 1.7;
}

/* Contact Section */
.contact-section {
    background: linear-gradient(to bottom, #ffffff, #f3f4f6);
    padding-bottom: 6rem;
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    max-width: 800px;
    margin: 0 auto;
}

.contact-card {
    background: white;
    padding: 2.5rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
}

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

.contact-icon-wrapper {
    width: 64px;
    height: 64px;
    background-color: #EEF2FF; /* Indigo 50 */
    color: var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    font-size: 1.75rem;
}

.contact-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-main);
}

.contact-card p {
    color: var(--text-muted);
    font-size: 1rem;
    margin-bottom: 0.5rem;
}

.contact-card a {
    color: var(--primary);
    font-size: 1.1rem;
    font-weight: 600;
    text-decoration: none;
    transition: color 0.2s;
}

.contact-card a:hover {
    color: var(--primary-hover);
    text-decoration: underline;
}

/* Content Pages (Agreement/Privacy) */
.page-container {
    max-width: 800px;
    margin: 3rem auto;
    padding: 3rem;
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    min-height: 60vh;
}

.page-container h1 {
    font-size: 2rem;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.page-container h2 {
    font-size: 1.5rem;
    margin-top: 2.5rem;
    margin-bottom: 1rem;
    color: var(--text-main);
}

.page-container ul {
    padding-left: 1.5rem;
    color: var(--text-muted);
}

.page-container li {
    margin-bottom: 0.5rem;
}

/* Footer */
.footer {
    background-color: #111827; /* Darker than before */
    color: #9CA3AF;
    text-align: center;
    padding: 4rem 2rem;
    margin-top: auto;
}

.footer p {
    margin-bottom: 1.5rem;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 2rem;
}

.footer-links a {
    color: white;
    text-decoration: none;
    font-size: 0.9rem;
    opacity: 0.8;
    transition: opacity 0.2s;
}

.footer-links a:hover {
    opacity: 1;
}

/* Mobile Responsive */
@media (max-width: 768px) {
    nav {
        flex-direction: column;
        gap: 1rem;
        padding: 1rem;
    }
    
    .nav-links {
        gap: 1.5rem;
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .page-container {
        margin: 1.5rem;
        padding: 1.5rem;
    }
}

/* Help Page Styles */
.page-header {
    background-color: #F3F4F6;
    padding: 4rem 0;
    text-align: center;
    margin-bottom: 3rem;
}

.page-header h1 {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
    color: var(--text-main);
}

.page-header p {
    color: var(--text-muted);
    font-size: 1.25rem;
}

.help-container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 2rem 4rem;
}

.help-step {
    display: flex;
    align-items: center;
    gap: 4rem;
    margin-bottom: 6rem;
}

.help-step.reverse {
    flex-direction: row-reverse;
}

.step-content {
    flex: 1;
}

.step-number {
    font-size: 4rem;
    font-weight: 900;
    color: rgba(79, 70, 229, 0.1); /* Primary color very light */
    line-height: 1;
    margin-bottom: 1rem;
}

.step-content h2 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-main);
}

.step-content p {
    font-size: 1.1rem;
    color: var(--text-muted);
    line-height: 1.8;
}

.step-image {
    flex: 1;
    background: white;
    padding: 1rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
}

.image-placeholder {
    width: 100%;
    aspect-ratio: 9/16; /* Mobile screen ratio */
    background-color: #EEF2FF;
    border: 2px dashed #C7D2FE;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #6366F1;
    font-weight: 600;
    font-size: 1.2rem;
    text-align: center;
    padding: 1rem;
}

@media (max-width: 768px) {
    .help-step, .help-step.reverse {
        flex-direction: column;
        gap: 2rem;
        margin-bottom: 4rem;
    }
    
    .step-number {
        font-size: 3rem;
    }
}