/* =========================================
   GLOBAL SETTINGS
========================================= */
:root {
    --bg-dark: #0f0f0f;
    --bg-light: #181818;
    --bg-box: #1f1f1f;
    --text-main: #ffffff;
    --text-secondary: #b3b3b3;
    --accent: #ff3d3d;
    --accent-hover: #ff5050;
    --radius: 10px;
    --transition: 0.25s ease;
    --max-width: 900px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', sans-serif;
}

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

/* =========================================
   NAVBAR
========================================= */
.navbar {
    width: 100%;
    padding: 18px 30px;
    background: var(--bg-light);
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 50;
}

.logo {
    color: white;
    font-size: 26px;
    font-weight: 700;
    text-decoration: none;
}

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

.nav-right a {
    margin-left: 20px;
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition);
}

.nav-right a:hover {
    color: white;
}

/* =========================================
   HERO SECTION
========================================= */
.hero {
    max-width: var(--max-width);
    margin: 40px auto;
    text-align: center;
    padding: 20px;
}

.hero h1 {
    font-size: 34px;
    font-weight: 700;
}

.subtitle {
    margin-top: 10px;
    color: var(--text-secondary);
    font-size: 17px;
}

/* Platform Icons */
.platforms {
    margin: 25px auto;
    display: flex;
    justify-content: center;
    gap: 20px;
}

.platforms img {
    width: 38px;
    opacity: 0.8;
    transition: var(--transition);
}

.platforms img:hover {
    opacity: 1;
    transform: scale(1.1);
}

/* =========================================
   DOWNLOAD BOX
========================================= */
.download-box {
    margin: 30px auto;
    background: var(--bg-box);
    padding: 25px;
    border-radius: var(--radius);
    max-width: 700px;
}

.download-box input {
    width: 100%;
    padding: 14px 16px;
    font-size: 16px;
    border-radius: var(--radius);
    border: none;
    outline: none;
    background: #2b2b2b;
    color: white;
    margin-bottom: 15px;
}

/* Format Buttons */
.format-select {
    display: flex;
    justify-content: center;
    margin-bottom: 15px;
    gap: 15px;
}

.format-btn {
    padding: 10px 22px;
    font-size: 15px;
    background: #2c2c2c;
    color: var(--text-secondary);
    border: none;
    border-radius: var(--radius);
    transition: var(--transition);
    cursor: pointer;
}

.format-btn.active {
    background: var(--accent);
    color: white;
}

.format-btn:hover {
    background: var(--accent-hover);
    color: white;
}

/* Main Download Button */
.download-btn {
    width: 100%;
    padding: 14px 16px;
    background: var(--accent);
    color: white;
    border: none;
    border-radius: var(--radius);
    font-size: 18px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.download-btn:hover {
    background: var(--accent-hover);
}

/* =========================================
   ADS (ZERO CLS)
========================================= */
.ad-top, .ad-native {
    margin: 25px auto;
    text-align: center;
    min-height: 70px; /* prevents layout shift */
    padding: 10px;
}

/* =========================================
   FEATURES
========================================= */
.features {
    max-width: var(--max-width);
    margin: 70px auto;
    text-align: center;
}

.features h2 {
    font-size: 28px;
    margin-bottom: 30px;
}

.features-grid {
    display: flex;
    justify-content: center;
    gap: 25px;
    flex-wrap: wrap;
}

.feature {
    background: var(--bg-box);
    padding: 20px;
    border-radius: var(--radius);
    width: 260px;
}

.feature h3 {
    margin-bottom: 10px;
    color: white;
}

.feature p {
    color: var(--text-secondary);
    font-size: 15px;
}

/* =========================================
   FOOTER
========================================= */
.footer {
    margin-top: 70px;
    padding: 30px 20px;
    background: var(--bg-light);
    text-align: center;
}

.footer-links {
    margin-bottom: 12px;
}

.footer-links a {
    margin: 0 12px;
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition);
}

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

/* =========================================
   MOBILE RESPONSIVE
========================================= */
@media (max-width: 700px) {
    .hero h1 { font-size: 28px; }
    .subtitle { font-size: 15px; }

    .platforms img { width: 32px; }

    .nav-right a {
        margin-left: 12px;
        font-size: 14px;
    }

    .feature {
        width: 90%;
    }
}