/* Premium Apple-like Dark Mode Stylesheet */

:root {
    --bg-color: #000000;
    --card-bg: rgba(20, 20, 20, 0.65);
    --border-color: rgba(255, 255, 255, 0.07);
    --accent-color: #FFB300;
    --accent-glow: rgba(255, 179, 0, 0.15);
    --text-primary: #FFFFFF;
    --text-secondary: #8E8E93; /* Apple secondary text label gray */
    --text-muted: #48484A;
    --font-stack: -apple-system, BlinkMacSystemFont, "SF Pro Text", "SF Pro Icons", "Helvetica Neue", Helvetica, Arial, sans-serif;
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    font-family: var(--font-stack);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Ambient Radial Glow mimicking the App UI */
.ambient-glow {
    position: absolute;
    width: 600px;
    height: 600px;
    top: -300px;
    left: 50%;
    transform: translateX(-50%);
    background: radial-gradient(circle, var(--accent-glow) 0%, rgba(0, 0, 0, 0) 70%);
    z-index: -1;
    pointer-events: none;
}

/* Header & Brand */
.app-header {
    max-width: 800px;
    width: 90%;
    margin: 40px auto 20px auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 30px;
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 20px;
}

.app-icon {
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5), 0 0 20px rgba(255, 179, 0, 0.05);
}

.brand h1 {
    font-size: 24px;
    font-weight: 700;
    letter-spacing: 4px;
    color: var(--text-primary);
}

.brand .subtitle {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 6px;
    color: var(--accent-color);
    text-transform: uppercase;
    margin-top: 2px;
}

/* Glassmorphic Tabs Menu */
.tab-nav {
    display: flex;
    background: rgba(120, 120, 128, 0.12); /* Apple system material */
    padding: 3px;
    border-radius: 99px;
    border: 1px solid var(--border-color);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}

.tab-btn {
    background: none;
    border: none;
    outline: none;
    color: var(--text-secondary);
    padding: 8px 24px;
    font-size: 13px;
    font-weight: 500;
    border-radius: 99px;
    cursor: pointer;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.tab-btn:hover {
    color: var(--text-primary);
}

.tab-btn.active {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

/* Main Content Area */
.content-container {
    flex: 1;
    max-width: 800px;
    width: 90%;
    margin: 0 auto 60px auto;
}

.tab-content {
    display: none;
    animation: fadeIn 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.tab-content.active {
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Glassmorphic Cards */
.card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    padding: 40px;
    backdrop-filter: blur(30px);
    -webkit-backdrop-filter: blur(30px);
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.4);
}

h2 {
    font-size: 28px;
    font-weight: 700;
    letter-spacing: -0.5px;
    margin-bottom: 6px;
}

.meta {
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 24px;
}

.divider {
    height: 1px;
    background: var(--border-color);
    margin-bottom: 30px;
}

h3 {
    font-size: 18px;
    font-weight: 600;
    margin: 30px 0 12px 0;
    color: var(--text-primary);
}

h3:first-of-type {
    margin-top: 0;
}

p {
    font-size: 15px;
    color: var(--text-secondary);
    margin-bottom: 20px;
    line-height: 1.6;
}

ul {
    list-style-type: none;
    margin-bottom: 24px;
}

ul li {
    font-size: 15px;
    color: var(--text-secondary);
    position: relative;
    padding-left: 20px;
    margin-bottom: 12px;
    line-height: 1.5;
}

ul li::before {
    content: "•";
    color: var(--accent-color);
    position: absolute;
    left: 0;
    font-weight: bold;
}

a {
    color: var(--accent-color);
    text-decoration: none;
    transition: opacity 0.2s;
}

a:hover {
    opacity: 0.8;
}

/* Feature Grid for Privacy Points */
.feature-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin: 24px 0;
}

.feature-item {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.03);
    border-radius: 16px;
    padding: 24px;
}

.feature-item .icon {
    width: 44px;
    height: 44px;
    background: rgba(255, 255, 255, 0.04);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-color);
    margin-bottom: 16px;
}

.feature-item h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 8px;
}

.feature-item p {
    font-size: 13.5px;
    margin-bottom: 0;
}

/* Support & FAQ styling */
.support-card {
    text-align: center;
}

.intro {
    font-size: 16px;
    color: var(--text-primary);
}

.contact-details {
    display: flex;
    justify-content: center;
    margin: 40px 0;
}

.contact-method {
    padding: 30px;
    background: rgba(255, 179, 0, 0.03);
    border: 1px solid rgba(255, 179, 0, 0.08);
    border-radius: 20px;
    max-width: 400px;
    width: 100%;
}

.contact-method .icon {
    width: 54px;
    height: 54px;
    margin: 0 auto 16px auto;
    background: rgba(255, 179, 0, 0.06);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.contact-method h3 {
    margin-top: 0;
    font-size: 18px;
}

.contact-method p {
    font-size: 14px;
    margin-bottom: 12px;
}

.support-email {
    font-size: 18px;
    font-weight: 600;
    letter-spacing: 0.5px;
}

.faq-section {
    text-align: left;
    margin-top: 40px;
}

.faq-section h3 {
    font-size: 20px;
    margin-bottom: 24px;
    text-align: center;
}

.faq-item {
    border-bottom: 1px solid var(--border-color);
    padding: 20px 0;
}

.faq-item:last-child {
    border-bottom: none;
}

.faq-item h4 {
    font-size: 15.5px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.faq-item p {
    font-size: 14px;
    margin-bottom: 0;
}

/* Footer */
.app-footer {
    text-align: center;
    padding: 40px 0;
    color: var(--text-muted);
    font-size: 12px;
    letter-spacing: 0.5px;
}

/* Responsive Styles */
@media (max-width: 600px) {
    .app-header {
        margin-top: 30px;
    }
    
    .tab-btn {
        padding: 8px 16px;
        font-size: 12px;
    }
    
    .card {
        padding: 24px;
        border-radius: 20px;
    }
    
    h2 {
        font-size: 22px;
    }
    
    .feature-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-method {
        padding: 20px;
    }
    
    .support-email {
        font-size: 15px;
    }
}