/* Dark mode glassmorphism theme with premium colorful accents */
:root {
    --bg-color: #0f172a; /* Tailwind slate-900 */
    --text-primary: #f8fafc; /* Tailwind slate-50 */
    --text-secondary: #cbd5e1; /* Tailwind slate-300 */
    --accent-1: #8b5cf6; /* Tailwind violet-500 */
    --accent-2: #3b82f6; /* Tailwind blue-500 */
    --apple-color: #ffffff;
    --android-color: #3DDC84;
}

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

body {
    font-family: 'Outfit', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow-x: hidden;
    position: relative;
    padding: 20px;
}

/* Background animated shapes for premium look */
.bg-shape {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    z-index: -1;
    animation: float 10s infinite ease-in-out alternate;
}

.bg-shape.one {
    width: 300px;
    height: 300px;
    background: linear-gradient(135deg, var(--accent-1), var(--accent-2));
    top: -50px;
    left: -50px;
}

.bg-shape.two {
    width: 400px;
    height: 400px;
    background: linear-gradient(135deg, var(--accent-2), #10b981);
    bottom: -100px;
    right: -100px;
    animation-delay: -5s;
}

@keyframes float {
    0% { transform: translate(0, 0) scale(1); }
    100% { transform: translate(50px, 50px) scale(1.1); }
}

/* Glassmorphism Container */
.glass-container {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 24px;
    padding: 40px;
    max-width: 500px;
    width: 100%;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    text-align: center;
    transform: translateY(20px);
    opacity: 0;
    animation: fadeIn 0.8s forwards cubic-bezier(0.16, 1, 0.3, 1);
}

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

.header-icon {
    font-size: 3.5rem;
    margin-bottom: 20px;
    display: inline-block;
    background: -webkit-linear-gradient(135deg, var(--accent-1), var(--accent-2));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.header-icon.apple {
    background: none;
    -webkit-text-fill-color: initial;
    color: var(--apple-color);
}

.header-icon.android {
    background: none;
    -webkit-text-fill-color: initial;
    color: var(--android-color);
}

h1 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 12px;
}

p {
    color: var(--text-secondary);
    font-size: 1.1rem;
    margin-bottom: 30px;
    line-height: 1.6;
}

/* QR Code styling */
.qr-box {
    background: white;
    padding: 15px;
    border-radius: 16px;
    display: inline-block;
    margin-bottom: 5px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.3);
}

.qr-box img {
    display: block;
    width: 180px;
    height: 180px;
}

/* Instructions Step-by-Step */
.steps {
    text-align: left;
    margin-bottom: 30px;
    background: rgba(0,0,0,0.2);
    padding: 20px;
    border-radius: 16px;
    border: 1px solid rgba(255,255,255,0.05);
}

.step {
    display: flex;
    align-items: flex-start;
    margin-bottom: 20px;
}

.step:last-child {
    margin-bottom: 0;
}

.step-number {
    background: linear-gradient(135deg, var(--accent-1), var(--accent-2));
    color: white;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-weight: 700;
    font-size: 0.9rem;
    margin-right: 15px;
    flex-shrink: 0;
    margin-top: 2px;
}

.step-content h3 {
    font-size: 1.15rem;
    margin-bottom: 6px;
    color: var(--text-primary);
}

.step-content p {
    font-size: 0.95rem;
    margin-bottom: 0;
    color: var(--text-secondary);
}

/* Buttons */
.btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    padding: 16px 20px;
    border-radius: 14px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.05rem;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    cursor: pointer;
    border: none;
    outline: none;
    color: white;
    margin-bottom: 15px;
}

.btn i {
    margin-right: 10px;
    font-size: 1.2rem;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-1), var(--accent-2));
    box-shadow: 0 10px 20px -10px rgba(139, 92, 246, 0.5);
    position: relative;
    overflow: hidden;
}

.btn-primary::after {
    content: '';
    position: absolute;
    top: 0; left: -100%;
    width: 50%; height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transform: skewX(-20deg);
    transition: all 0.5s ease;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 30px -10px rgba(139, 92, 246, 0.8);
}

.btn-primary:hover::after {
    left: 150%;
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
}