:root {
    --primary-color: #2563eb;
    --primary-dark: #1e40af;
    --secondary-color: #f97316;
    --accent-color: #8b5cf6;
    --background: #ffffff;
    --surface: #f8fafc;
    --surface-dark: #f1f5f9;
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-light: #64748b;
    --border: #e2e8f0;
    --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);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'DM Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    color: var(--text-primary);
    background: var(--background);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: 'Sora', sans-serif;
    font-weight: 700;
    line-height: 1.2;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 28px;
    font-family: 'Sora', sans-serif;
    font-weight: 600;
    font-size: 15px;
    border-radius: var(--radius-md);
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
    box-shadow: 0 4px 14px 0 rgba(37, 99, 235, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px 0 rgba(37, 99, 235, 0.5);
}

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

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

.btn-large {
    padding: 16px 36px;
    font-size: 16px;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    z-index: 1000;
    animation: slideDown 0.5s ease-out;
}

@keyframes slideDown {
    from {
        transform: translateY(-100%);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.nav-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 0;
}

.logo-link {
    display: flex;
    align-items: center;
    text-decoration: none;
}

.logo-image {
    height: 45px;
    width: auto;
    transition: transform 0.3s ease;
}

.logo-link:hover .logo-image {
    transform: scale(1.05);
}

.logo {
    font-family: 'Sora', sans-serif;
    font-size: 24px;
    font-weight: 800;
    color: var(--text-primary);
}

.logo-accent {
    color: var(--primary-color);
}

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

.nav-links a {
    font-weight: 500;
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s ease;
    position: relative;
}

.nav-links a.nav-login {
    color: var(--primary-color);
    font-weight: 600;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width 0.3s ease;
}

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

.nav-links a:hover::after,
.nav-links a.nav-login::after {
    width: 100%;
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.mobile-menu-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: all 0.3s ease;
}

/* Hero Section */
.hero {
    position: relative;
    padding: 160px 0 100px;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: -1;
}

.hero-shape {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.3;
    animation: float 20s ease-in-out infinite;
}

.hero-shape.shape-1 {
    width: 600px;
    height: 600px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    top: -200px;
    right: -200px;
}

.hero-shape.shape-2 {
    width: 400px;
    height: 400px;
    background: linear-gradient(135deg, var(--secondary-color), #fbbf24);
    bottom: -100px;
    left: -100px;
    animation-delay: -5s;
}

.hero-shape.shape-3 {
    width: 300px;
    height: 300px;
    background: linear-gradient(135deg, var(--accent-color), var(--primary-color));
    top: 50%;
    left: 50%;
    animation-delay: -10s;
}

@keyframes float {
    0%, 100% {
        transform: translate(0, 0) scale(1);
    }
    33% {
        transform: translate(30px, -30px) scale(1.1);
    }
    66% {
        transform: translate(-30px, 30px) scale(0.9);
    }
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-logo-container {
    margin-bottom: 24px;
    animation: fadeInUp 0.8s ease-out;
}

.hero-logo {
    height: 160px;
    width: auto;
    display: block;
}

.hero-title {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-bottom: 24px;
}

.title-main {
    font-size: 56px;
    font-weight: 800;
    background: linear-gradient(135deg, var(--text-primary), var(--primary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: fadeInUp 0.8s ease-out;
}

.title-sub {
    font-size: 24px;
    font-weight: 600;
    color: var(--text-secondary);
    animation: fadeInUp 0.8s ease-out 0.2s backwards;
}

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

.hero-description {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 32px;
    line-height: 1.7;
    animation: fadeInUp 0.8s ease-out 0.4s backwards;
}

.hero-cta {
    display: flex;
    gap: 16px;
    margin-bottom: 40px;
    animation: fadeInUp 0.8s ease-out 0.6s backwards;
}

.text-accent {
    color: var(--primary-color);
}

/* Hero Image */
.hero-visual {
    position: relative;
    animation: fadeIn 1s ease-out 0.5s backwards;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.hero-image-container {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-image {
    width: 100%;
    max-width: 550px;
    height: auto;
    display: block;
    transition: transform 0.3s ease;
}

.hero-image-container:hover .hero-image {
    transform: scale(1.02);
}

/* Sections */
section {
    padding: 100px 0;
}

/* App Preview Section */
.app-preview-section {
    padding: 80px 0;
    background: var(--surface);
}

.app-preview-content {
    max-width: 1000px;
    margin: 0 auto;
}

.app-preview {
    position: relative;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    border: 1px solid var(--border);
}

.app-screenshot {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.3s ease;
}

.app-preview:hover .app-screenshot {
    transform: scale(1.02);
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header.centered {
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    margin-bottom: 60px;
}

.section-title {
    font-size: 42px;
    font-weight: 800;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.section-description {
    font-size: 18px;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* Features Section */
.features {
    background: var(--surface);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 32px;
}

.feature-card {
    background: white;
    padding: 32px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s ease;
}

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

.feature-card:hover::before {
    transform: scaleX(1);
}

.feature-card.featured {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
}

.feature-card.featured .feature-title,
.feature-card.featured .feature-list li {
    color: white;
}

.feature-badge {
    position: absolute;
    top: 16px;
    right: 16px;
    background: var(--secondary-color);
    color: white;
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 700;
    font-family: 'Sora', sans-serif;
}

.feature-icon {
    width: 64px;
    height: 64px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
    transition: all 0.3s ease;
}

.feature-icon svg {
    width: 32px;
    height: 32px;
    stroke-width: 2;
    color: white;
}

.feature-icon.calendar {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
}

.feature-icon.payments {
    background: linear-gradient(135deg, var(--secondary-color), #fb923c);
}

.feature-icon.crm {
    background: linear-gradient(135deg, var(--accent-color), #a855f7);
}

.feature-icon.stats {
    background: linear-gradient(135deg, #059669, #10b981);
}

.feature-icon.ai {
    background: linear-gradient(135deg, #db2777, #ec4899);
}

.feature-icon.registration {
    background: linear-gradient(135deg, #d97706, #f59e0b);
}

.feature-icon.panels {
    background: linear-gradient(135deg, #6366f1, #818cf8);
}

.feature-icon.cycles {
    background: linear-gradient(135deg, #0891b2, #06b6d4);
}

.feature-card:hover .feature-icon {
    transform: scale(1.1) rotate(5deg);
}

.feature-title {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.feature-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.feature-list li {
    padding-left: 24px;
    position: relative;
    color: var(--text-secondary);
    font-size: 15px;
    line-height: 1.6;
}

.feature-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: 700;
}

.feature-card.featured .feature-list li::before {
    color: white;
}

/* Benefits Section */
.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 40px;
}

.benefit-item {
    position: relative;
    padding-left: 32px;
}

.benefit-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 6px;
    width: 12px;
    height: 12px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border-radius: 50%;
}

.benefit-item h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.benefit-item p {
    color: var(--text-secondary);
    font-size: 15px;
    line-height: 1.6;
}

/* Target Audience Section */
.target-audience {
    background: var(--surface);
}

.audience-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 24px;
}

.audience-card {
    background: white;
    padding: 32px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    text-align: center;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
}

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

.audience-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border-radius: var(--radius-md);
    transition: all 0.3s ease;
}

.audience-icon svg {
    width: 32px;
    height: 32px;
    stroke-width: 2;
    color: white;
}

.audience-card:hover .audience-icon {
    transform: scale(1.1) rotate(5deg);
}

.audience-card h3 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.audience-subtitle {
    font-size: 14px;
    color: var(--text-secondary);
}

/* How It Works Section */
.steps-container {
    max-width: 900px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 40px;
}

.step {
    display: flex;
    gap: 32px;
    align-items: flex-start;
}

.step-number {
    flex-shrink: 0;
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'Sora', sans-serif;
    font-size: 32px;
    font-weight: 800;
    box-shadow: 0 8px 20px 0 rgba(37, 99, 235, 0.3);
}

.step-content h3 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.step-content p {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 1.7;
}

.step-connector {
    width: 2px;
    height: 40px;
    background: linear-gradient(180deg, var(--primary-color), var(--accent-color));
    margin-left: 39px;
    opacity: 0.3;
}

/* Social Proof Section */
.social-proof {
    background: var(--surface);
}

.testimonials-placeholder {
    background: white;
    padding: 80px 40px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    text-align: center;
}

.placeholder-text {
    color: var(--text-light);
    font-size: 16px;
}

/* FAQ Section */
.faq-container {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.faq-item {
    background: white;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    overflow: hidden;
}

.faq-question {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px;
    background: none;
    border: none;
    font-family: 'Sora', sans-serif;
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    text-align: left;
    cursor: pointer;
    transition: all 0.3s ease;
}

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

.faq-icon {
    font-size: 24px;
    font-weight: 300;
    color: var(--primary-color);
    transition: transform 0.3s ease;
}

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

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

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

.faq-answer p {
    padding: 0 24px 24px;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* Contact Section */
.contact {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.contact-info h2 {
    font-size: 36px;
    margin-bottom: 16px;
}

.contact-info p {
    font-size: 18px;
    opacity: 0.9;
    margin-bottom: 32px;
    line-height: 1.7;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 16px;
}

.contact-item svg {
    width: 24px;
    height: 24px;
    stroke-width: 2;
}

.contact-form {
    background: white;
    padding: 40px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
}

.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    font-family: 'Sora', sans-serif;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 14px 16px;
    border: 2px solid var(--border);
    border-radius: var(--radius-sm);
    font-family: 'DM Sans', sans-serif;
    font-size: 15px;
    color: var(--text-primary);
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

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

/* Footer */
.footer {
    background: var(--text-primary);
    color: white;
    padding: 60px 0 24px;
}

.footer-content {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 60px;
    margin-bottom: 40px;
}

.footer-brand .logo-image,
.footer-logo {
    height: 60px;
    width: auto;
    margin-bottom: 16px;
    display: block;
}

.footer-brand .logo {
    color: white;
    margin-bottom: 16px;
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.6;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
}

.footer-column h4 {
    font-family: 'Sora', sans-serif;
    font-weight: 700;
    margin-bottom: 16px;
}

.footer-column ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-column a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: color 0.3s ease;
}

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

.footer-bottom {
    padding-top: 24px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-logo-days {
    color: rgba(255, 255, 255, 0.7);
}

.footer-logo-days strong {
    color: white;
}

.footer-copyright {
    color: rgba(255, 255, 255, 0.5);
    font-size: 14px;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .hero-text {
        text-align: center;
    }

    .hero-logo-container {
        display: flex;
        justify-content: center;
    }

    .hero-cta {
        justify-content: center;
    }

    .hero-visual {
        max-width: 500px;
        margin: 0 auto;
    }

    .hero-image {
        max-width: 100%;
    }

    .title-main {
        font-size: 48px;
    }

    .title-sub {
        font-size: 20px;
    }

    .contact-content {
        grid-template-columns: 1fr;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}

@media (max-width: 900px) {
    .nav-links {
        position: fixed;
        top: 73px;
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        padding: 24px;
        gap: 16px;
        box-shadow: var(--shadow-lg);
        transform: translateY(-100%);
        opacity: 0;
        transition: all 0.3s ease;
        pointer-events: none;
    }

    .nav-links.active {
        transform: translateY(0);
        opacity: 1;
        pointer-events: all;
    }

    .nav-cta {
        display: none;
    }

    .mobile-menu-toggle {
        display: flex;
    }

    .mobile-menu-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .mobile-menu-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .mobile-menu-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 20px;
    }

    .logo-image {
        height: 38px;
    }

    .hero-logo {
        height: 60px;
    }

    section {
        padding: 60px 0;
    }

    .app-preview-section {
        padding: 50px 0;
    }

    .hero {
        padding: 120px 0 60px;
    }

    .title-main {
        font-size: 36px;
    }

    .title-sub {
        font-size: 18px;
    }

    .hero-description {
        font-size: 16px;
    }

    .hero-cta {
        flex-direction: column;
    }

    .section-title {
        font-size: 32px;
    }

    .section-description {
        font-size: 16px;
    }

    .features-grid {
        grid-template-columns: 1fr;
    }

    .benefits-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .audience-grid {
        grid-template-columns: 1fr;
    }

    .step {
        flex-direction: column;
        gap: 16px;
    }

    .step-connector {
        margin-left: 0;
        width: 40px;
        height: 2px;
    }

    .contact-form {
        padding: 32px 24px;
    }

    .footer-links {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .logo-image {
        height: 34px;
    }

    .hero-logo {
        height: 50px;
    }

    .footer-logo {
        height: 50px;
    }

    .title-main {
        font-size: 28px;
    }

    .title-sub {
        font-size: 16px;
    }

    .hero-cta .btn {
        width: 100%;
        justify-content: center;
    }

    .section-title {
        font-size: 28px;
    }

    .feature-card {
        padding: 24px;
    }

    .calendar-grid {
        gap: 4px;
    }

    .calendar-day {
        font-size: 11px;
    }

    .step-number {
        width: 60px;
        height: 60px;
        font-size: 24px;
    }

    .step-content h3 {
        font-size: 20px;
    }
}

/* Animations */
@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

.animate-pulse {
    animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}