/* premium-design.css */
@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700&display=swap');

:root {
    /* Color Palette */
    --primary-color: #4F46E5; /* Indigo 600 */
    --primary-hover: #4338CA;
    --secondary-color: #ec4899; /* Pink 500 */
    --accent-color: #10B981; /* Emerald 500 */
    
    --bg-color: #f8fafc;
    --text-main: #1e293b;
    --text-muted: #64748b;
    
    --card-bg: rgba(255, 255, 255, 0.7);
    --card-border: rgba(255, 255, 255, 0.4);
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-glow: 0 0 20px rgba(79, 70, 229, 0.3);
    
    /* Animations */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
    font-family: 'Outfit', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-main);
    background-image: 
        radial-gradient(at 0% 0%, hsla(253,16%,7%,0.05) 0, transparent 50%), 
        radial-gradient(at 50% 0%, hsla(225,39%,30%,0.05) 0, transparent 50%), 
        radial-gradient(at 100% 0%, hsla(339,49%,30%,0.05) 0, transparent 50%);
    background-attachment: fixed;
    min-height: 100vh;
}

/* Glassmorphism Cards */
.card {
    background: var(--card-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--card-border);
    border-radius: 16px;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    overflow: hidden;
    margin-bottom: 2rem;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.card-header {
    background: transparent;
    border-bottom: 1px solid rgba(0,0,0,0.05);
    padding: 1.5rem;
    font-weight: 600;
}

/* Buttons */
.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border: none;
    border-radius: 8px;
    padding: 10px 24px;
    font-weight: 500;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.btn-primary:hover {
    box-shadow: var(--shadow-glow);
    transform: translateY(-2px);
    background: linear-gradient(135deg, var(--primary-hover), #db2777);
}

.btn-outline-primary {
    border-color: var(--primary-color);
    color: var(--primary-color);
    border-radius: 8px;
}

.btn-outline-primary:hover {
    background-color: var(--primary-color);
    box-shadow: var(--shadow-glow);
}

/* Navbar / Top */
header {
    background: rgba(255, 255, 255, 0.8) !important;
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(0,0,0,0.05);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow-sm);
    border-radius: 0 0 16px 16px;
    margin-bottom: 2rem;
}

.nav-link {
    font-weight: 500;
    color: var(--text-muted) !important;
    transition: var(--transition);
    position: relative;
}

.nav-link:hover {
    color: var(--primary-color) !important;
}

.nav-link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: 0;
    left: 50%;
    background-color: var(--primary-color);
    transition: var(--transition);
    transform: translateX(-50%);
}

.nav-link:hover::after {
    width: 80%;
}

/* Inputs */
.form-control {
    border-radius: 8px;
    border: 1px solid rgba(0,0,0,0.1);
    padding: 0.75rem 1rem;
    transition: var(--transition);
    background: rgba(255, 255, 255, 0.9);
}

.form-control:focus {
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.2);
    border-color: var(--primary-color);
    background: #fff;
}

/* Custom IP block */
.ip-display {
    font-size: 3rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-align: center;
    margin: 2rem 0;
}

/* Footer */
footer {
    margin-top: 4rem;
    padding: 2rem 0;
    border-top: 1px solid rgba(0,0,0,0.05);
    color: var(--text-muted);
}

/* Tool Cards */
.tool-card {
    transition: var(--transition);
    border-radius: 12px;
    margin-bottom: 0;
    cursor: pointer;
}

.tool-card:hover {
    transform: translateY(-4px) scale(1.02);
    box-shadow: var(--shadow-glow);
}

.tool-card .bg-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color)) !important;
}

.tool-card .bg-info {
    background: linear-gradient(135deg, var(--accent-color), #0ea5e9) !important;
}