/* THEME: GLASS (Modern / Clean) */
:root {
    --bg-body: #0a0a0a;
    --bg-card: rgba(255, 255, 255, 0.05);
    --bg-card-hover: rgba(255, 255, 255, 0.1);

    --primary: #ffffff;
    --secondary: #a0a0a0;

    --text-main: #ffffff;
    --text-muted: #cccccc;

    --border-color: rgba(255, 255, 255, 0.2);
    --border-active: rgba(255, 255, 255, 0.5);

    --font-heading: 'Space Grotesk', sans-serif;
    --font-body: 'Inter', sans-serif;

    --radius: 24px;
    /* Soft rounded corners */
    --shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
}

body {
    background-color: var(--bg-body);
    /* Abstract Gradient Blobs */
    background-image:
        radial-gradient(circle at 20% 20%, rgba(60, 60, 60, 0.4), transparent 40%),
        radial-gradient(circle at 80% 80%, rgba(40, 40, 40, 0.4), transparent 40%);
    color: var(--text-main);
    font-family: var(--font-body);
}

/* TYPOGRAPHY */
h1,
h2,
h3 {
    font-family: var(--font-heading);
    font-weight: 700;
    letter-spacing: -1px;
}

.text-gradient {
    background: linear-gradient(to right, #ffffff, #888888);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* CARDS */
.theme-card {
    background: var(--bg-card);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 2.5rem;
    transition: all 0.4s ease;
    box-shadow: var(--shadow);
}

.theme-card:hover {
    transform: translateY(-8px);
    background: var(--bg-card-hover);
    border-color: var(--border-active);
}

/* BUTTONS */
.btn-theme-primary {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.4);
    color: white;
    padding: 1rem 2.5rem;
    border-radius: 50px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.btn-theme-primary:hover {
    background: white;
    color: black;
    box-shadow: 0 0 20px rgba(255, 255, 255, 0.3);
}

.btn-theme-secondary {
    background: transparent;
    color: rgba(255, 255, 255, 0.7);
    padding: 1rem 2.5rem;
    font-weight: 600;
    transition: all 0.3s ease;
}

.btn-theme-secondary:hover {
    color: white;
}