:root {
    --primary-color: #ff9a9e;
    --primary-hover: #ff758c;
    --secondary-color: #a18cd1;
    --bg-gradient-start: #fbc2eb;
    --bg-gradient-end: #a6c1ee;
    --text-color: #555;
    --text-muted: #888;
    --glass-bg: rgba(255, 255, 255, 0.85);
    --glass-border: rgba(255, 255, 255, 0.5);
    --card-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
    --border-radius: 30px;
}

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

html {
    height: 100%;
    background: linear-gradient(120deg, var(--bg-gradient-start) 0%, var(--bg-gradient-end) 100%);
    background-attachment: fixed;
}

body {
    font-family: 'Outfit', 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    color: var(--text-color);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow-x: hidden;
    zoom: 1;
    /* 100% scaling */
}

.background-shapes {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
    pointer-events: none;
}

.shape {
    position: absolute;
    filter: blur(60px);
    opacity: 0.7;
    animation: float 8s infinite ease-in-out;
    border-radius: 50%;
}

.shape-1 {
    top: -10%;
    left: -10%;
    width: 600px;
    height: 600px;
    background: #fad0c4;
    animation-delay: 0s;
}

.shape-2 {
    bottom: -10%;
    right: -10%;
    width: 500px;
    height: 500px;
    background: #ffd1ff;
    animation-delay: -4s;
}

.shape-3 {
    top: 40%;
    left: 40%;
    width: 300px;
    height: 300px;
    background: #a18cd1;
    opacity: 0.4;
    animation-delay: -2s;
}

@keyframes float {

    0%,
    100% {
        transform: translate(0, 0);
    }

    50% {
        transform: translate(20px, 20px);
    }
}

.container {
    width: 100%;
    max-width: 520px;
    padding: 20px;
}

.card {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 2px solid var(--glass-border);
    border-radius: var(--border-radius);
    padding: 50px;
    text-align: center;
    box-shadow: var(--card-shadow);
    animation: popIn 0.6s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    position: relative;
    overflow: hidden;
}

@keyframes popIn {
    from {
        opacity: 0;
        transform: scale(0.8);
    }

    to {
        opacity: 1;
        transform: scale(1);
    }
}

.logo {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    background: linear-gradient(to right, #ff9a9e, #fecfef);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
    filter: drop-shadow(0 4px 6px rgba(0, 0, 0, 0.1));
    animation: bounce 2s infinite;
}

@keyframes bounce {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-10px);
    }
}

h1 {
    font-size: 2.2rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
    color: #444;
}

.subtitle {
    color: var(--text-muted);
    font-size: 1.1rem;
    margin-bottom: 2.5rem;
    line-height: 1.6;
}

.version-badge {
    display: inline-block;
    padding: 6px 16px;
    background: linear-gradient(to right, #ffecd2 0%, #fcb69f 100%);
    color: #000;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    box-shadow: 0 4px 10px rgba(252, 182, 159, 0.4);
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.actions {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.btn {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 16px 28px;
    border-radius: 20px;
    font-weight: 700;
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    font-size: 1.05rem;
    position: relative;
    overflow: hidden;
}

.btn i {
    font-size: 1.2em;
}

.btn-primary {
    background: linear-gradient(135deg, #ff9a9e 0%, #fecfef 99%, #fecfef 100%);
    color: white;
    box-shadow: 0 8px 20px rgba(255, 154, 158, 0.4);
}

.btn-primary:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 12px 25px rgba(255, 154, 158, 0.5);
}

.btn-secondary {
    background: white;
    color: var(--text-color);
    border: 2px solid transparent;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
}

.btn-secondary:hover {
    background: #fff;
    border-color: #ff9a9e;
    color: #ff9a9e;
    transform: translateY(-3px);
}

.footer {
    margin-top: 2.5rem;
    font-size: 0.9rem;
    color: var(--text-muted);
    opacity: 0.8;
}

/* Scrollbar for update log */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.05);
    border-radius: 10px;
}

::-webkit-scrollbar-thumb {
    background: #ff9a9e;
    border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
    background: #ff758c;
}

@media (max-width: 640px) {
    .card {
        padding: 30px 20px;
    }

    .logo {
        font-size: 3rem;
    }
}