:root {
    --primary: #4b5cfb;
    --primary-dark: #3749ff;
    --secondary: #32478e;
    --accent:#6c7ff2;
    --background: #f8f9fc;
    --surface: #ffffff;
    --text-primary: #1a1d2e;
    --text-secondary: #6b7280;
    --border: #e5e7eb;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.16);
    --radius: 16px;
    --transition: all 0.3s cubic-bezier(.4, 0,.2,1);
}

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

html {
    scroll-behavior: smooth;
    background-color: var(--background);
}

body {
    background-color: #e9ecf1;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    margin: 0;
    padding: 0;
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--background);
    overflow-x: hidden;
}

h1 {
    color: #4b5cfb;
    font-size: 3rem;
}

h2 {
    color: #5665ff;
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
}

h3 {
    color: var(--primary);
    font-size: 1.8rem;
    margin-bottom: 1rem;
}

p {
    font-size: 17px;
    line-height: 1.6;
    color: #2f2f2f;
    max-width: 800px;
    text-align: center;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

a {
    color: #4b5cfb;
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: #3749ff;
    text-decoration: underline;
}

/* Navbar */
nav {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(12px);
    box-shadow: var(--shadow-sm);
    padding: 1.2rem 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: var(--transition);
}

.nav-title {
    font-size: 1.8rem;
    font-weight: 760;
    color: var(--primary);
}

.nav-links {
    display: flex;
    gap: 30px;
}

.nav-links a {
    color: #4b5cfb;
    text-decoration: none;
}

.nav-links a:hover {
    color: var(--accent);
    text-decoration: underline;
}

nav:hover {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}
/* Download Hero Section */
.download-hero {
    min-height: 40vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 4rem 10%;
    background: linear-gradient(135deg, #f8f9fd 0%, #d4d5e8 100%);
}

.download-hero h1 {
    font-size: 3.5rem;
    font-weight: 900;
    margin-bottom: 1rem;
}

.download-hero p {
    font-size: 1.2rem;
    color: var(--text-secondary);
    max-width: 700px;
}

/* Sections */
section {
    padding: 4rem 10%;
    scroll-margin-top: 150px;
    text-align: center;
}

section p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 1rem;
    text-align: center;
    margin-left: auto;
    margin-right: auto;
    max-width: 800px;
}

/* About Section */
.about {
    background: white;
    padding: 5rem 10%;
    text-align: center;
}

.about h2 {
    margin-bottom: 2.5rem;
    text-align: center;
}

.about p {
    margin-left: auto;
    margin-right: auto;
    text-align: center;
    max-width: 800px;
    font-size: 1.15rem;
    line-height: 1.9;
    color: var(--text-secondary);
    margin-bottom: 1.2rem;
}

.about p:last-of-type {
    margin-bottom: 0;
}

/* Download Sections */
.desktop-app-download {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    padding: 2rem;
    max-width: 1400px;
    margin: 0 auto;
}

.desktop-app-container {
    display: flex;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}
.mobile-app-download {
    background: var(--background);
    max-width: 1400px;
    margin: 0 auto;
    padding: 2rem;
    margin-bottom: 40px;
}

.download-window,
.download-mac,
.download-linux,
.download-android,
.download-ios {
    background: white;
    padding: 1.5rem;
    border-radius: var(--radius);
    margin: 0;
    max-width: 400px;
    box-shadow: var(--shadow-sm);
    text-align: center;
    scroll-margin-top: 350px;
}

.download-window p,
.download-mac p,
.download-linux p,
.download-android p,
.download-ios p {
    margin-bottom: 1.5rem;
    text-align: center;
    margin-left: auto;
    margin-right: auto;
}

/* Container for desk downloads - side by side */
.desktop-downloads-container {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin-top: 2rem;
    flex-wrap: wrap;
}
.mobile-downloads-container {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin-top: 2rem;
    flex-wrap: wrap;
}

/* Responsive stacked on smaller screens */
@media (max-width: 1024px) {
    .download-hero {
        padding: 3rem 6%;
        min-height: 40vh;
    }

    .download-hero h1 {
        font-size: 2.8rem;
    }

    section {
        padding: 2.5rem 4%;
    }

    .desktop-downloads-container {
        display: flex;
        flex-direction: column;
        gap: 1.2rem;
    }

    .download-window, .download-mac, .download-linux {
        padding: 1.2rem;
    }
}

@media (max-width: 768px) {
    .download-hero {
        padding: 2rem 4%;
        min-height: 30vh;
    }

    .download-hero h1 {
        font-size: 2.2rem;
        margin-bottom: 0.8rem;
    }

    .download-hero p {
        font-size: 1rem;
    }

    .desktop-downloads-container {
        padding: 0 2%;
    }

    .download-window, .download-mac, .download-linux {
        width: 100%;
        box-sizing: border-box;
        padding: 1rem;
        border-radius: 12px;
    }

    .version-selector label, .version-selector select {
        display: block;
        width: 100%;
    }

    .btn-primary.download-btn {
        display: block;
        width: 100%;
        text-align: center;
        padding: 12px 16px;
        font-size: 1rem;
    }

    .about p, .download-hero p, .desktop-app-download p {
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .download-hero h1 { font-size: 1.8rem; }
    section { padding: 1.2rem 3%; }
    .platform-selection, .desktop-downloads-container { padding: 0 1%; }
    .download-window .instruction-note { font-size: 0.95rem; }
}

/* Version Selector */
.version-selector {
    margin: 1.5rem auto;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
}

.version-selector label {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 1rem;
}

.version-dropdown {
    padding: 0.75rem 1.5rem;
    border: 2px solid var(--border);
    border-radius: 8px;
    font-size: 1rem;
    color: var(--text-primary);
    background: white;
    cursor: pointer;
    transition: var(--transition);
    min-width: 200px;
}

.version-dropdown:hover {
    border-color: var(--primary);
}

.version-dropdown:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(75, 92, 251, 0.1);
}

/* Buttons */
.btn {
    padding: 1rem 2.5rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.05rem;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    box-shadow: var(--shadow-md);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: white;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
    text-decoration: none;
}

/* Footer */
footer {
    background: linear-gradient(135deg, #4b5cfb, #3749d8);
    color: white;
    width: 100%;
    margin: 0;
    padding: 80px 0 0 0;
    box-sizing: border-box;
    position: relative;
    text-align: left;
    overflow-x: hidden;
}

footer::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
}

.footer-container {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 30px;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 40px 60px 40px;
    text-align: left;
}

@media (max-width: 1200px) {
    .footer-container {
        grid-template-columns: 1fr 1fr;
        gap: 40px;
    }
}

@media (max-width: 640px) {
    .footer-container {
        grid-template-columns: 1fr;
        gap: 30px;
    }
}

.footer-section {
    text-align: left;
    max-width: 100%;
    min-width: 0;
}

.footer-section h2 {
    color: #fff;
    font-size: 28px;
    margin-bottom: 15px;
    text-align: left;
    font-weight: 800;
    letter-spacing: -0.5px;
}

.footer-section h3 {
    color: #fff;
    margin-bottom: 20px;
    font-size: 16px;
    font-weight: 700;
    letter-spacing: 0.5px;
    text-align: left;
    text-transform: uppercase;
    opacity: 0.95;
}

.footer-section p {
    color: rgba(255, 255, 255, 0.85);
    font-size: 15px;
    line-height: 1.8;
    max-width: none;
    width: 100%;
    text-align: left;
    margin-left: 0;
    margin-right: 0;
    margin-bottom: 20px;
    word-wrap: break-word;
    overflow-wrap: break-word;
    hyphens: auto;
}

.footer-section a {
    display: block;
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    margin-bottom: 12px;
    font-size: 15px;
    transition: all 0.3s ease;
    padding-left: 20px;
    text-align: left;
    position: relative;
}

.footer-section a::before {
    content: "→";
    position: absolute;
    left: 0;
    opacity: 0;
    transition: all 0.3s ease;
}

.footer-section a:hover {
    color: #ffffff;
    transform: translateX(8px);
    text-decoration: none;
}

.footer-section a:hover::before {
    opacity: 1;
    left: 0;
}

.footer-bottom {
    text-align: center;
    margin: 0;
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    padding: 30px 20px;
    background: rgba(0, 0, 0, 0.15);
}

.footer-bottom p {
    margin: 0;
    font-size: 15px;
    color: rgba(255, 255, 255, 0.75);
    max-width: 100%;
    text-align: center;
    letter-spacing: 0.3px;
}

/* Instruction Note Styling */
.instruction-note {
    margin-top: 1rem;
    font-size: 0.95rem;
    color: var(--text-secondary);
    text-align: center;
}

.instruction-link {
    color: var(--primary);
    font-weight: 600;
    text-decoration: none;
    border-bottom: 2px solid transparent;
    transition: all 0.3s ease;
    padding-bottom: 2px;
}

.instruction-link:hover {
    color: var(--accent);
    border-bottom-color: var(--accent);
    text-decoration: none;
}

/* Coming Soon Styles */
.coming-soon {
    position: relative;
    opacity: 0.7;
    pointer-events: none;
}

.coming-soon::after {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.5);
    border-radius: var(--radius);
    z-index: 1;
}

.coming-soon-badge {
    display: inline-block;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 0.75rem 2rem;
    border-radius: 50px;
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    box-shadow: 0 4px 20px rgba(102, 126, 234, 0.4);
    text-align: center;
}

.coming-soon p:not(.coming-soon-badge) {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin: 1rem 0;
    text-align: center;
}