:root {
    --col-bg: #FFFFFF;
    --col-primary: #00D4AA;
    --col-primary-hover: #00A888;
    --col-primary-light: rgba(0, 212, 170, 0.12);
    --col-text-main: #1A1D2E;
    --col-text-sec: #6B7280;
    --col-border: #E5E7EB;
    --col-card-bg: #FAFAFA;
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --font-inter: 'Inter', system-ui, -apple-system, sans-serif;
    --transition: 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

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

body {
    font-family: var(--font-inter);
    color: var(--col-text-main);
    background-color: var(--col-bg);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

/* Typography elements */
h1, h2, h3 {
    font-weight: 600;
    line-height: 1.2;
    letter-spacing: -0.02em;
}

h2 {
    font-size: clamp(2rem, 4vw, 2.5rem);
    margin-bottom: 2rem;
    text-align: center;
}

/* Layout Utilities */
section {
    padding: 6rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

/* Navbar */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--col-primary);
    text-decoration: none;
    letter-spacing: -0.03em;
}

.logo img {
    height: 48px;
    width: auto;
    object-fit: contain;
}

.nav-cta {
    background: transparent;
    border: 2px solid var(--col-border);
    color: var(--col-text-main);
    padding: 0.6rem 1.2rem;
    border-radius: 99px;
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.nav-cta:hover {
    border-color: var(--col-primary);
    color: var(--col-primary);
}

/* Buttons */
.primary-cta, .submit-btn {
    background-color: var(--col-primary);
    color: white;
    border: none;
    padding: 1.2rem 2.5rem;
    font-size: 1.1rem;
    font-weight: 600;
    border-radius: 99px;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: 0 4px 14px rgba(0, 212, 170, 0.3);
}

.primary-cta:hover, .submit-btn:hover {
    background-color: var(--col-primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 212, 170, 0.4);
}

/* 1. Hero Section */
.hero {
    min-height: 70vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding-top: 4rem;
}

.headline {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    max-width: 900px;
    margin-bottom: 1.5rem;
}

.subheadline {
    font-size: clamp(1.1rem, 2vw, 1.3rem);
    color: var(--col-text-sec);
    max-width: 700px;
    margin-bottom: 3rem;
}

/* 2. My Story Section */
.story-section {
    background-color: var(--col-primary-light);
    border-radius: var(--radius-lg);
    padding: 5rem 2rem;
    margin: 4rem auto;
    max-width: 900px;
}

.story-card h2 {
    text-align: left;
    margin-bottom: 1.5rem;
}

.story-content {
    font-size: 1.1rem;
    color: var(--col-text-main);
}

.story-content p {
    margin-bottom: 1.2rem;
}

.story-content p:last-child {
    margin-bottom: 0;
}

/* 3. Features Grid */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.feature-card {
    background-color: var(--col-card-bg);
    padding: 2.5rem 2rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--col-border);
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    border-color: var(--col-primary-light);
}

.feature-card i {
    font-size: 2.5rem;
    color: var(--col-primary);
    margin-bottom: 1.5rem;
    display: inline-block;
    padding: 1rem;
    background-color: var(--col-primary-light);
    border-radius: 12px;
}

.feature-card h3 {
    margin-bottom: 1rem;
    font-size: 1.25rem;
}

.feature-card p {
    color: var(--col-text-sec);
    font-size: 1rem;
}

/* 4. How It Works */
.how-it-works-section {
    background-color: var(--col-bg);
}

.steps-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 3rem;
    margin-top: 4rem;
}

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

.step-number {
    width: 60px;
    height: 60px;
    background-color: var(--col-primary-light);
    color: var(--col-primary);
    font-size: 1.5rem;
    font-weight: 700;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem auto;
}

.step h3 {
    margin-bottom: 1rem;
}

.step p {
    color: var(--col-text-sec);
}

/* 5. Waitlist Form */
.waitlist-section {
    background-color: var(--col-card-bg);
    border-radius: var(--radius-lg);
    padding: 5rem 2rem;
    margin: 4rem auto;
    max-width: 800px;
}

.form-container h2 {
    margin-bottom: 3rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    font-size: 0.95rem;
}

.optional {
    color: var(--col-text-sec);
    font-weight: 400;
    font-size: 0.85rem;
}

input, select, textarea {
    width: 100%;
    padding: 1rem;
    border: 1px solid var(--col-border);
    border-radius: var(--radius-sm);
    font-family: inherit;
    font-size: 1rem;
    background-color: white;
    transition: var(--transition);
}

input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--col-primary);
    box-shadow: 0 0 0 3px var(--col-primary-light);
}

.submit-btn {
    width: 100%;
    margin-top: 1rem;
}

/* Success Message */
.success-message {
    text-align: center;
    padding: 4rem 2rem;
}

.success-icon i {
    font-size: 4rem;
    color: var(--col-primary);
    margin-bottom: 1.5rem;
}

.success-message h2 {
    margin-bottom: 1rem;
}

.success-message p {
    color: var(--col-text-sec);
    font-size: 1.1rem;
    max-width: 500px;
    margin: 0 auto;
}

/* 6. Footer */
footer {
    text-align: center;
    padding: 3rem 2rem;
    border-top: 1px solid var(--col-border);
    margin-top: 4rem;
}

footer p {
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.copyright {
    color: var(--col-text-sec);
    font-weight: 400;
    font-size: 0.9rem;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .form-row {
        grid-template-columns: 1fr;
        gap: 0;
    }
    
    .story-section {
        margin: 2rem 1rem;
        padding: 3rem 1.5rem;
    }
    
    section {
        padding: 4rem 1.5rem;
    }
    
    .waitlist-section {
        margin: 2rem 1rem;
        padding: 3rem 1.5rem;
    }
}