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

:root {
    --primary: #667eea;
    --primary-dark: #764ba2;
    --text: #1a1a2e;
    --text-light: #6b7280;
    --bg: #ffffff;
    --bg-soft: #f8f9ff;
    --border: #e5e7eb;
    --success: #10b981;
    --shadow: 0 4px 20px rgba(0,0,0,0.08);
    --shadow-lg: 0 10px 40px rgba(0,0,0,0.12);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    color: var(--text);
    line-height: 1.6;
    background: var(--bg);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
.header {
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header__inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 20px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 20px;
    font-weight: 700;
    color: var(--text);
    text-decoration: none;
}

.nav {
    display: flex;
    gap: 24px;
}

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

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

.nav-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
}

/* Hero */
.hero {
    background: linear-gradient(135deg, #ffecd2 0%, #fcb69f 50%, #e0c3fc 100%);
    padding: 80px 0 100px;
    text-align: center;
}

.hero h1 {
    font-size: 48px;
    font-weight: 800;
    margin-bottom: 20px;
    line-height: 1.2;
    color: var(--text);
}

.hero__subtitle {
    font-size: 20px;
    color: var(--text);
    max-width: 700px;
    margin: 0 auto 40px;
    opacity: 0.9;
}

.hero__cta {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 20px;
}

.hero__note {
    font-size: 16px;
    color: var(--text);
    opacity: 0.8;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 14px 28px;
    border-radius: 10px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s;
    border: none;
    cursor: pointer;
    font-size: 16px;
}

.btn--primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

.btn--primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.6);
}

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

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

.btn--small {
    padding: 10px 20px;
    font-size: 14px;
}

.btn--large {
    padding: 18px 36px;
    font-size: 18px;
}

/* Tools */
.tools {
    padding: 80px 0;
    background: var(--bg);
}

.tools h2 {
    text-align: center;
    font-size: 36px;
    margin-bottom: 50px;
}

.tools__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.tool-card {
    background: white;
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 30px;
    transition: all 0.3s;
}

.tool-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary);
}

.tool-card__icon {
    font-size: 40px;
    margin-bottom: 16px;
}

.tool-card h3 {
    font-size: 22px;
    margin-bottom: 12px;
}

.tool-card p {
    color: var(--text-light);
    margin-bottom: 16px;
}

.tool-card__benefits {
    list-style: none;
    margin-bottom: 20px;
}

.tool-card__benefits li {
    padding: 4px 0;
    color: var(--text-light);
    font-size: 14px;
}

.tool-card__benefits li::before {
    content: "✓ ";
    color: var(--success);
    font-weight: bold;
}

/* How it works */
.how-it-works {
    padding: 80px 0;
    background: var(--bg-soft);
}

.how-it-works h2 {
    text-align: center;
    font-size: 36px;
    margin-bottom: 50px;
}

.steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.step {
    text-align: center;
    padding: 30px;
}

.step__number {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    font-weight: 700;
    margin: 0 auto 20px;
}

.step h3 {
    font-size: 20px;
    margin-bottom: 12px;
}

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

/* CTA Section */
.cta-section {
    padding: 80px 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    text-align: center;
}

.cta-section h2 {
    font-size: 36px;
    margin-bottom: 16px;
}

.cta-section p {
    font-size: 18px;
    margin-bottom: 30px;
    opacity: 0.9;
}

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

/* FAQ */
.faq {
    padding: 80px 0;
}

.faq h2 {
    text-align: center;
    font-size: 36px;
    margin-bottom: 50px;
}

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

.faq__item {
    border: 1px solid var(--border);
    border-radius: 12px;
    margin-bottom: 12px;
    padding: 20px;
    background: white;
}

.faq__item summary {
    font-weight: 600;
    font-size: 18px;
    cursor: pointer;
    list-style: none;
}

.faq__item summary::-webkit-details-marker {
    display: none;
}

.faq__item summary::after {
    content: "+";
    float: right;
    font-size: 24px;
    color: var(--primary);
}

.faq__item[open] summary::after {
    content: "−";
}

.faq__item p {
    margin-top: 12px;
    color: var(--text-light);
}

/* Footer */
.footer {
    background: var(--text);
    color: white;
    padding: 50px 0 20px;
}

.footer__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    margin-bottom: 30px;
}

.footer h4 {
    margin-bottom: 16px;
    font-size: 18px;
}

.footer a {
    display: block;
    color: rgba(255,255,255,0.7);
    text-decoration: none;
    margin-bottom: 8px;
    transition: color 0.2s;
}

.footer a:hover {
    color: white;
}

.footer__copy {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255,255,255,0.1);
    color: rgba(255,255,255,0.5);
    font-size: 14px;
}

/* Responsive */
@media (max-width: 768px) {
    .nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        padding: 20px;
        border-bottom: 1px solid var(--border);
    }

    .nav.active {
        display: flex;
    }

    .nav-toggle {
        display: block;
    }

    .hero h1 {
        font-size: 32px;
    }

    .hero__subtitle {
        font-size: 16px;
    }

    .tools h2, .how-it-works h2, .cta-section h2, .faq h2 {
        font-size: 28px;
    }

    .hero__cta {
        flex-direction: column;
        align-items: center;
    }

    .btn--large {
        width: 100%;
        max-width: 300px;
    }
}