/* --- 1. Reset & Base Styles (Dark Mode) --- */
body {
    margin: 0;
    padding: 0;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: #121212; /* Deep Black */
    color: white;
    display: flex;
    justify-content: center;
    height: 100vh;
    overflow: hidden;
    margin-top: 60px; /* Space for fixed navbar */
}
/* Mobile Container */
.app-container {
    width: 100%;
    max-width: 420px;
    min-width: 320px;
    height: calc(100% - 60px);
    min-height: 600px;
    background-color: #181818;
    position: relative;
    display: flex;
    flex-direction: column;
    box-shadow: 0 0 20px rgba(0,0,0,0.5);
    margin: 60px auto 0;
    overflow: hidden;
}
/* --- 2. Header --- */
.header {
    padding: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.header h1 { margin: 0; font-size: 24px; font-weight: 800; }
.header .revenue { color: #1DB954; font-weight: bold; font-size: 14px; }

/* --- 3. The Card Stack (Central Focus) --- */
.card-stack {
    flex: 1;
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    perspective: 1000px;
}
.card {
    width: 85%;
    min-width: 280px;
    height: 55vh;
    min-height: 400px;
    max-height: 500px;
    background: linear-gradient(145deg, #2a2a2a, #222);
    border-radius: 20px;
    position: absolute;
    box-shadow: 0 10px 25px rgba(0,0,0,0.5);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding: 25px;
    box-sizing: border-box;
    transition: transform 0.4s cubic-bezier(0.25, 0.8, 0.25, 1), opacity 0.4s;
    border: 1px solid #333;
}
/* Service Branding */
.service-badge {
    align-self: flex-start;
    background: rgba(255,255,255,0.1);
    padding: 5px 12px;
    border-radius: 50px;
    font-size: 12px;
    font-weight: bold;
    text-transform: uppercase;
    display: flex;
    align-items: center;
    gap: 5px;
}
.spotify-theme .service-badge { color: #1DB954; border: 1px solid #1DB954; }
.netflix-theme .service-badge { color: #E50914; border: 1px solid #E50914; }

/* Client Details */
.client-info h2 { font-size: 28px; margin: 0 0 5px 0; }
.client-info p { color: #888; margin: 0; font-size: 14px; }
.expiry-warning { color: #ff4b4b; font-size: 13px; margin-top: 10px; display: block; }

/* --- 4. Action Area (Thumb Zone) --- */
.actions {
    padding: 0 30px 120px 30px; /* Extra bottom padding for nav bar */
    display: flex;
    justify-content: space-between;
    gap: 20px;
}

.btn-action {
    flex: 1;
    height: 60px;
    border-radius: 30px;
    border: none;
    font-size: 16px;
    font-weight: bold;
    cursor: pointer;
    transition: transform 0.1s, box-shadow 0.2s;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
}
.btn-action:active { transform: scale(0.95); }

.btn-whatsapp {
    background-color: #333;
    color: white;
}
.btn-whatsapp:hover {
    background-color: #444;
    box-shadow: 0 0 15px rgba(255, 255, 255, 0.1);
}
.btn-renew {
    background-color: #1DB954; /* Spotify Green */
    color: black;
    box-shadow: 0 0 15px rgba(29, 185, 84, 0.4);
}
.btn-renew:hover {
    box-shadow: 0 0 25px rgba(29, 185, 84, 0.6);
}

/* --- 5. Bottom Navigation (Fixed) --- */
.bottom-nav {
    position: absolute;
    bottom: 0;
    width: 100%;
    height: 80px;
    background: #121212;
    display: flex;
    justify-content: space-around;
    align-items: center;
    border-top: 1px solid #333;
}
.nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    color: #666;
    font-size: 10px;
    gap: 4px;
    cursor: pointer;
    transition: color 0.2s;
}
.nav-item:hover {
    color: #aaa;
}
.nav-item.active { color: #1DB954; }
.nav-icon { font-size: 24px; }

/* --- Animations --- */
.swipe-right {
    transform: translateX(120%) rotate(15deg) !important;
    opacity: 0 !important;
}
.swipe-left {
    transform: translateX(-120%) rotate(-15deg) !important;
    opacity: 0 !important;
}

/* Loading Animation */
@keyframes pulse {
    0% { opacity: 0.5; }
    50% { opacity: 1; }
    100% { opacity: 0.5; }
}
.loading {
    animation: pulse 1.5s infinite ease-in-out;
}