/* =========================================
   Variables & Resets
   ========================================= */
:root {
    --primary-color: #833ab4;
    --secondary-color: #fd1d1d;
    --accent-color: #fcb045;
    --text-main: #333333;
    --text-muted: #666666;
    --bg-main: #ffffff;
    --bg-light: #f8f9fa;
    --border-color: #e0e0e0;
    --success-color: #28a745;
    --danger-color: #dc3545;
    --font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    --transition-speed: 0.3s;
}

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

html {
    scroll-behavior: smooth;
}

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

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

.container {
    width: 100%;
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
}

/* =========================================
   Typography & Utilities
   ========================================= */
.section {
    padding: 15px 0;
}

.section--light {
    background-color: var(--bg-light);
}

.section__title {
    text-align: center;
    font-size: 2rem;
    margin-top: 0;
    margin-bottom: 15px;
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    position: relative;
}

.subsection__title {
    font-size: 1.5rem;
    margin-top: 25px;
    margin-bottom: 15px;
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.subsubsection__title {
    font-size: 1.25rem;
    margin-top: 20px;
    margin-bottom: 10px;
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.section__title::after {
    content: '';
    display: block;
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, var(--accent-color), var(--secondary-color), var(--primary-color));
    margin: 10px auto 0;
    border-radius: 2px;
}

.btn {
    display: inline-block;
    padding: 14px 32px;
    font-size: 1.1rem;
    font-weight: bold;
    text-align: center;
    border-radius: 50px;
    cursor: pointer;
    transition: transform var(--transition-speed), box-shadow var(--transition-speed);
}

.btn--primary {
    background: linear-gradient(45deg, var(--accent-color), var(--secondary-color), var(--primary-color));
    color: #fff;
    box-shadow: 0 4px 15px rgba(253, 29, 29, 0.4);
}

.btn--primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(253, 29, 29, 0.6);
}

/* =========================================
   Header
   ========================================= */
.header {
    background-color: #fff;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header__container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 20px;
}

.header__logo {
    font-size: 1.5rem;
    font-weight: 800;
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav__list {
    display: flex;
    gap: 20px;
}

.nav__link {
    font-weight: 600;
    transition: color var(--transition-speed);
}

.nav__link:hover {
    color: var(--secondary-color);
}

/* =========================================
   Hero Section
   ========================================= */
.hero {
    background: linear-gradient(135deg, #fff 0%, var(--bg-light) 100%);
    padding: 30px 0;
    text-align: center;
}

.hero__title {
    font-size: 2.5rem;
    margin-bottom: 20px;
    line-height: 1.2;
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero__description {
    font-size: 1.1rem;
    color: var(--text-muted);
    max-width: 700px;
    margin: 0 auto 30px;
}

.hero__app-info {
    max-width: 400px;
    margin: 0 auto 40px;
    background: #fff;
    border-radius: 10px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.05);
    overflow: hidden;
}

.app-table {
    width: 100%;
    border-collapse: collapse;
}

.app-table th, .app-table td {
    padding: 12px 20px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.app-table tr:last-child th, .app-table tr:last-child td {
    border-bottom: none;
}

.app-table th {
    background-color: var(--bg-light);
    font-weight: 600;
    width: 40%;
}

/* =========================================
   Features Section
   ========================================= */
.features__content {
    background: #fff;
    border-radius: 10px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.05);
    overflow: hidden;
}

.features-table {
    width: 100%;
    border-collapse: collapse;
}

.features-table th, .features-table td {
    padding: 15px 20px;
    border-bottom: 1px solid var(--border-color);
    text-align: left;
}

.features-table th {
    background-color: var(--primary-color);
    color: #fff;
    font-weight: 600;
}

.features-table tbody tr:hover {
    background-color: var(--bg-light);
}

/* =========================================
   Pros & Cons
   ========================================= */
.pros-cons__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
}

.pros-cons__card {
    background: #fff;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
}

.pros-cons__card h3 {
    font-size: 1.5rem;
    margin-bottom: 20px;
    text-align: center;
}

.pros-cons__card ul li {
    margin-bottom: 10px;
    font-weight: 500;
}

.pros h3 {
    color: var(--success-color);
}

.cons h3 {
    color: var(--danger-color);
}

/* =========================================
   Why Choose Us
   ========================================= */
.why-choose__content p {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
    font-size: 1.1rem;
}

/* =========================================
   FAQ
   ========================================= */
.faq__list {
    max-width: 800px;
    margin: 0 auto;
}

.faq__item {
    background: #fff;
    padding: 20px;
    border-radius: 8px;
    margin-bottom: 15px;
    box-shadow: 0 3px 10px rgba(0,0,0,0.05);
}

.faq__question {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--primary-color);
}

.faq__answer {
    color: var(--text-muted);
}

/* =========================================
   Conclusion
   ========================================= */
.conclusion p {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

/* =========================================
   Footer
   ========================================= */
.footer {
    background-color: #222;
    color: #ddd;
    padding: 40px 0 20px;
    text-align: center;
}

.footer__logo {
    font-size: 1.5rem;
    font-weight: bold;
    margin-bottom: 15px;
    color: #fff;
}

.footer__disclaimer {
    font-size: 0.9rem;
    max-width: 700px;
    margin: 0 auto 20px;
    color: #aaa;
}

.footer__copyright {
    font-size: 0.85rem;
    border-top: 1px solid #444;
    padding-top: 20px;
}

/* =========================================
   Back to Top Button
   ========================================= */
.back-to-top {
    display: none;
    position: fixed;
    bottom: 30px;
    right: 30px;
    z-index: 99;
    font-size: 24px;
    border: none;
    outline: none;
    background: linear-gradient(45deg, var(--accent-color), var(--secondary-color), var(--primary-color));
    color: white;
    cursor: pointer;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    box-shadow: 0 4px 15px rgba(253, 29, 29, 0.4);
    transition: transform var(--transition-speed), box-shadow var(--transition-speed);
}

.back-to-top:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 20px rgba(253, 29, 29, 0.6);
}

/* =========================================
   Responsive Design
   ========================================= */
@media (max-width: 768px) {
    .pros-cons__grid {
        grid-template-columns: 1fr;
    }
    
    .hero__title {
        font-size: 2rem;
    }
    
    .header__container {
        flex-direction: column;
        justify-content: center;
        gap: 10px;
        height: auto;
        padding: 15px 20px;
    }
}

@media (max-width: 480px) {
    .features-table th, .features-table td {
        padding: 10px;
        font-size: 0.9rem;
    }
}