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

:root {
    --bg-color: #f8fafc;
    --text-main: #1e293b;
    --text-muted: #64748b;
    --apple-black: #000000;
    --android-green: #3ddc84;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-main);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    overflow: hidden;
}

.container {
    width: 90%;
    max-width: 400px;
    text-align: center;
    padding: 20px;
}

.logo {
    width: 120px;
    height: 120px;
    border-radius: 28px;
    margin-bottom: 24px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.1);
    object-fit: cover;
}

h1 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 12px;
}

p {
    font-size: 16px;
    color: var(--text-muted);
    margin-bottom: 40px;
    line-height: 1.5;
}

.buttons {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.store-btn {
    padding: 16px;
    border-radius: 14px;
    border: none;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    color: white;
}

.store-btn:active {
    transform: scale(0.97);
}

.apple { background-color: var(--apple-black); }
.android { background-color: var(--android-green); color: #000; }

/* iOS Popup Tasarımı */
#ios-instruction-popup {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    display: none; /* JS ile açılacak */
    justify-content: center;
    align-items: flex-end;
    z-index: 9999;
}

.popup-content {
    background: white;
    width: 100%;
    padding: 30px;
    border-radius: 20px 20px 0 0;
    text-align: left;
    animation: slideUp 0.3s ease-out;
}

@keyframes slideUp {
    from { transform: translateY(100%); }
    to { transform: translateY(0); }
}

.popup-content h3 { margin-bottom: 15px; }
.popup-content p { margin-bottom: 10px; color: #333; }
.close-btn {
    background: #eee;
    padding: 10px;
    text-align: center;
    border-radius: 10px;
    margin-top: 20px;
    cursor: pointer;
}