/* BASE STYLES */
:root {
    --primary: #00CFDD;
    --secondary: #5C43F5;
    --accent: #FF6B6B;
    --dark: #1A1C22;
    --light: #F5F7FA;
    --text-dark: #2A2E36;
    --text-light: #6C757D;
    --white: #FFFFFF;
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 5px 15px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.12);
    --gradient-primary: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Roboto', sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--light);
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

img {
    max-width: 100%;
    height: auto;
}

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
}

ul {
    list-style: none;
}

/* TYPOGRAPHY */
h1, h2, h3, h4, h5, h6 {
    font-family: 'Poppins', sans-serif;
    line-height: 1.3;
    font-weight: 700;
    color: var(--dark);
}

.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 0.5rem;
    position: relative;
    display: inline-block;
}

.section-subtitle {
    font-size: 1.1rem;
    text-align: center;
    color: var(--text-light);
    margin-bottom: 3rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

/* BUTTONS */
.btn {
    display: inline-block;
    padding: 14px 28px;
    border-radius: var(--radius-sm);
    font-family: 'Poppins', sans-serif;
    font-weight: 500;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
}

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

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

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

.btn-outline:hover {
    background-color: rgba(92, 67, 245, 0.08);
}

/* HEADER */
header {
    position: sticky;
    top: 0;
    background-color: rgba(255, 255, 255, 0.97);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo h1 {
    font-size: 1.5rem;
    font-weight: 700;
}

.logo span {
    color: var(--primary);
    font-weight: 400;
}

.nav-links {
    display: flex;
    gap: 32px;
}

.nav-links a {
    font-weight: 500;
    position: relative;
}

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

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

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

.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    cursor: pointer;
}

.menu-toggle .bar {
    width: 28px;
    height: 3px;
    background-color: var(--dark);
    border-radius: 2px;
    transition: all 0.3s ease;
}

/* HERO SECTION */
.hero {
    padding: 80px 0;
    overflow: hidden;
    background: linear-gradient(135deg, rgba(0, 207, 221, 0.05) 0%, rgba(92, 67, 245, 0.05) 100%);
    position: relative;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: 40px;
}

.hero h2 {
    font-size: 3.2rem;
    margin-bottom: 0.5rem;
    line-height: 1.2;
}

.hero .subtitle {
    font-size: 1.2rem;
    color: var(--primary);
    margin-bottom: 1rem;
    font-weight: 500;
}

.hero .description {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    color: var(--text-light);
}

.benefits {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 2rem;
}

.benefits li {
    display: flex;
    align-items: center;
    gap: 10px;
}

.check-icon {
    flex-shrink: 0;
}

.benefits span {
    font-weight: 500;
}

.cta-buttons {
    display: flex;
    gap: 16px;
}

.hero-visual {
    position: relative;
}

.hero-image {
    width: 100%;
    height: auto;
    filter: drop-shadow(0px 10px 20px rgba(0, 0, 0, 0.1));
}

/* FEATURES SECTION */
.features {
    padding: 100px 0;
    text-align: center;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 20px;
}

.feature-card {
    background: var(--white);
    border-radius: var(--radius-md);
    padding: 40px 25px;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
    text-align: left;
}

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

.feature-icon {
    margin-bottom: 25px;
}

.feature-card h3 {
    margin-bottom: 15px;
    font-size: 1.5rem;
}

/* HOW IT WORKS SECTION */
.how-it-works {
    padding: 100px 0;
    background-color: rgba(0, 207, 221, 0.03);
    text-align: center;
}

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

.step {
    display: flex;
    align-items: flex-start;
    gap: 24px;
    text-align: left;
    margin-bottom: 40px;
    position: relative;
}

.step-number {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    color: var(--white);
    border-radius: 50%;
    font-size: 1.5rem;
    font-weight: 700;
    flex-shrink: 0;
    position: relative;
    z-index: 1;
}

.step:not(:last-child)::after {
    content: '';
    position: absolute;
    top: 50px;
    left: 25px;
    height: calc(100% - 10px);
    width: 2px;
    background: linear-gradient(to bottom, var(--primary), var(--secondary));
    opacity: 0.3;
}

.step-content h3 {
    margin-bottom: 10px;
    font-size: 1.4rem;
}

.cta-center {
    margin-top: 50px;
}

/* FAQ SECTION */
.faq {
    padding: 100px 0;
    text-align: center;
}

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

.accordion-item {
    background: var(--white);
    border-radius: var(--radius-sm);
    margin-bottom: 16px;
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.accordion-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
    cursor: pointer;
    position: relative;
}

.accordion-header h3 {
    font-size: 1.2rem;
    margin: 0;
}

.accordion-icon {
    width: 20px;
    height: 20px;
    position: relative;
}

.accordion-icon::before,
.accordion-icon::after {
    content: '';
    position: absolute;
    background-color: var(--primary);
    transition: all 0.3s ease;
}

.accordion-icon::before {
    top: 50%;
    left: 0;
    width: 100%;
    height: 2px;
    transform: translateY(-50%);
}

.accordion-icon::after {
    top: 0;
    left: 50%;
    width: 2px;
    height: 100%;
    transform: translateX(-50%);
}

.accordion-item.active .accordion-icon::after {
    opacity: 0;
}

.accordion-content {
    padding: 0 20px;
    max-height: 0;
    overflow: hidden;
    transition: all 0.3s ease;
}

.accordion-item.active .accordion-content {
    padding-bottom: 20px;
    max-height: 1000px;
}

.accordion-content p {
    color: var(--text-light);
    text-align: left;
}

/* FOOTER */
footer {
    background-color: var(--dark);
    color: var(--light);
    padding: 70px 0 30px;
}

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

.footer-brand {
    display: flex;
    align-items: flex-start;
    gap: 20px;
}

.footer-brand-text h3 {
    color: var(--white);
    margin-bottom: 15px;
    font-size: 1.5rem;
}

.footer-brand-text span {
    color: var(--primary);
    font-weight: 400;
}

.footer-brand-text p {
    opacity: 0.7;
    max-width: 350px;
    font-size: 0.95rem;
}

.footer-links {
    display: flex;
    justify-content: space-between;
}

.footer-column {
    margin-right: 40px;
}

.footer-column h4 {
    color: var(--white);
    margin-bottom: 20px;
    font-size: 1.2rem;
}

.footer-column ul li {
    margin-bottom: 12px;
}

.footer-column ul li a {
    opacity: 0.7;
    transition: all 0.3s ease;
}

.footer-column ul li a:hover {
    opacity: 1;
    color: var(--primary);
}

.footer-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    padding: 20px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    margin-bottom: 20px;
}

.footer-tags span {
    font-size: 0.9rem;
    opacity: 0.5;
}

.copyright {
    text-align: center;
    opacity: 0.6;
    font-size: 0.9rem;
}

.copyright p:first-child {
    margin-bottom: 5px;
}

/* RESPONSIVE STYLES */
@media (max-width: 992px) {
    .hero h2 {
        font-size: 2.5rem;
    }
    
    .section-title {
        font-size: 2.2rem;
    }
}

@media (max-width: 768px) {
    .hero-grid {
        grid-template-columns: 1fr;
    }
    
    .hero-visual {
        order: -1;
    }
    
    .hero {
        padding: 60px 0;
    }
    
    .features, .how-it-works, .faq {
        padding: 70px 0;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .nav-links {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: var(--white);
        box-shadow: var(--shadow-sm);
        flex-direction: column;
        padding: 20px;
        gap: 20px;
        max-height: 0;
        overflow: hidden;
        transition: all 0.3s ease;
    }
    
    .nav-links.active {
        max-height: 300px;
    }
    
    .menu-toggle {
        display: flex;
    }
    
    .menu-toggle.active .bar:nth-child(1) {
        transform: translateY(9px) rotate(45deg);
    }
    
    .menu-toggle.active .bar:nth-child(2) {
        opacity: 0;
    }
    
    .menu-toggle.active .bar:nth-child(3) {
        transform: translateY(-9px) rotate(-45deg);
    }
    
    .cta-buttons {
        flex-direction: column;
    }
}

@media (max-width: 576px) {
    .hero h2 {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
    
    .footer-links {
        flex-direction: column;
        gap: 30px;
    }
    
    .feature-grid {
        grid-template-columns: 1fr;
    }
}