:root {
    --bg-dark: #0f172a;
    --card-bg: rgba(30, 41, 59, 0.6);
    --card-border: rgba(255, 255, 255, 0.1);
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;

    --grad-1-start: #4facfe;
    --grad-1-end: #00f2fe;

    --grad-2-start: #ff0844;
    --grad-2-end: #ffb199;

    --grad-3-start: #b224ef;
    --grad-3-end: #7579ff;

    --brand-grad: linear-gradient(135deg, #00c6ff, #0072ff);
}

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

body {
    font-family: 'Inter', 'Noto Sans JP', sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
}

/* Background Glowing Orbs */
.background-decor {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    z-index: -1;
    opacity: 0.4;
    animation: drift 20s infinite alternate ease-in-out;
}

.blob-1 {
    top: -10%;
    left: -10%;
    width: 50vw;
    height: 50vw;
    background: radial-gradient(circle, #0052d4, #4364f7);
}

.blob-2 {
    bottom: -10%;
    right: -10%;
    width: 60vw;
    height: 60vw;
    background: radial-gradient(circle, #8a2387, #e94057);
}

.blob-3 {
    top: 40%;
    left: 40%;
    width: 30vw;
    height: 30vw;
    background: radial-gradient(circle, #f2709c, #ff9472);
}

@keyframes drift {
    0% {
        transform: translateY(0) scale(1);
    }

    100% {
        transform: translateY(50px) scale(1.1);
    }
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 3rem 2rem;
    position: relative;
    z-index: 1;
}

header {
    text-align: center;
    margin-bottom: 3rem;
}

h1 {
    font-family: 'Outfit', sans-serif;
    font-size: 4rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
    letter-spacing: -1px;
}

.gradient-text {
    background: var(--brand-grad);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    color: transparent;
}

.subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
}

/* Search Bar */
.search-container {
    max-width: 600px;
    margin: 0 auto 4rem auto;
    position: relative;
}

.search-icon {
    position: absolute;
    left: 1.5rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-secondary);
    font-size: 1.2rem;
}

#searchInput {
    width: 100%;
    padding: 1.2rem 1.2rem 1.2rem 3.5rem;
    border-radius: 50px;
    border: 1px solid var(--card-border);
    background: rgba(15, 23, 42, 0.7);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    color: var(--text-primary);
    font-size: 1.1rem;
    outline: none;
    transition: all 0.3s ease;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
}

#searchInput:focus {
    border-color: rgba(255, 255, 255, 0.3);
    box-shadow: 0 0 20px rgba(0, 198, 255, 0.3);
}

/* App Grid */
.app-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 4rem;
}

.app-card {
    display: block;
    text-decoration: none;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 20px;
    padding: 2rem;
    position: relative;
    overflow: hidden;
    color: var(--text-primary);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.app-card:hover {
    transform: translateY(-10px) scale(1.02);
    border-color: rgba(255, 255, 255, 0.2);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
}

.card-icon {
    width: 60px;
    height: 60px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
    color: white;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
}

.gradient-1 {
    background: linear-gradient(135deg, var(--grad-1-start), var(--grad-1-end));
}

.gradient-2 {
    background: linear-gradient(135deg, var(--grad-2-start), var(--grad-2-end));
}

.gradient-3 {
    background: linear-gradient(135deg, var(--grad-3-start), var(--grad-3-end));
}

.empty-icon {
    background: rgba(255, 255, 255, 0.05);
    border: 2px dashed rgba(255, 255, 255, 0.2);
    color: var(--text-secondary);
    box-shadow: none;
}

.empty-card {
    border: 2px dashed var(--card-border);
    background: rgba(30, 41, 59, 0.3);
}

.empty-card:hover {
    border-color: rgba(255, 255, 255, 0.4);
}

.card-content h3 {
    font-size: 1.4rem;
    font-weight: 600;
    margin-bottom: 0.8rem;
    letter-spacing: -0.5px;
}

.card-content p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* Hover Effect Glow */
.card-hover-effect {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at center, rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0) 70%);
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
    z-index: 10;
}

.app-card:hover .card-hover-effect {
    opacity: 1;
}

footer {
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.9rem;
    opacity: 0.6;
}

/* Responsive */
@media (max-width: 768px) {
    h1 {
        font-size: 3rem;
    }

    .container {
        padding: 2rem 1.5rem;
    }

    .app-grid {
        grid-template-columns: 1fr;
    }
}