:root {
    --bg-dark: #0f172a;
    --bg-card: rgba(30, 41, 59, 0.45);
    --primary: #3b82f6;
    --primary-glow: rgba(59, 130, 246, 0.5);
    --secondary: #8b5cf6;
    --accent: #0ea5e9;
    --text-white: #f8fafc;
    --text-muted: #94a3b8;
    --glass-border: rgba(255, 255, 255, 0.08);
    --error: #ef4444;
    --success: #10b981;
}

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

body {
    background: var(--bg-dark);
    background-image:
        radial-gradient(at 0% 0%, rgba(59, 130, 246, 0.15) 0px, transparent 50%),
        radial-gradient(at 100% 100%, rgba(139, 92, 246, 0.15) 0px, transparent 50%);
    color: var(--text-white);
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
}

h1,
h2,
h3,
h4,
.logo {
    font-family: 'Poppins', sans-serif;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Animated Gradient Background */
@keyframes gradientBG {
    0% {
        background-position: 0% 50%;
    }

    50% {
        background-position: 100% 50%;
    }

    100% {
        background-position: 0% 50%;
    }
}

.bg-animate {
    background: linear-gradient(-45deg, #0f172a, #1e1b4b, #1e293b, #0f172a);
    background-size: 400% 400%;
    animation: gradientBG 15s ease infinite;
}

/* Glassmorphism */
.glass {
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
}

.glass-hover:hover {
    border-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-5px);
    transition: all 0.3s ease;
}

/* Navbar */
.navbar {
    padding: 24px 0;
    margin-bottom: 40px;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 26px;
    font-weight: 700;
    text-decoration: none;
    color: #fff;
    display: flex;
    align-items: center;
    gap: 10px;
}

.gradient-text {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 30px;
}

.nav-links a {
    color: var(--text-muted);
    text-decoration: none;
    font-weight: 500;
    transition: 0.3s;
    font-size: 0.95rem;
}

.nav-links a:hover {
    color: var(--text-white);
}

.nav-links i {
    margin-right: 6px;
}

/* Buttons */
.btn {
    padding: 12px 28px;
    border-radius: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    border: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    box-shadow: 0 4px 15px var(--primary-glow);
}

.btn-primary:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
}

.btn:hover:not(:disabled) {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 8px 25px var(--primary-glow);
}

/* Animations */
.fade-in {
    animation: fadeIn 0.8s ease-out forwards;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

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

/* Error Message */
.error-message {
    background: rgba(239, 68, 68, 0.15);
    border: 1px solid var(--error);
    color: #f87171;
    padding: 12px 20px;
    border-radius: 12px;
    margin-bottom: 20px;
    display: none;
    align-items: center;
    gap: 10px;
}

/* Success Message */
.success-message {
    background: rgba(16, 185, 129, 0.15);
    border: 1px solid var(--success);
    color: #34d399;
    padding: 12px 20px;
    border-radius: 12px;
    margin-bottom: 20px;
}

.floating {
    animation: floating 3s ease-in-out infinite;
}

@keyframes floating {
    0% {
        transform: translate(0, 0px);
    }

    50% {
        transform: translate(0, -10px);
    }

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

footer {
    padding: 60px 0;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.shadow-glow {
    box-shadow: 0 0 15px rgba(59, 130, 246, 0.4);
}

.ripple {
    position: relative;
    overflow: hidden;
}

.ripple:after {
    content: "";
    display: block;
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    pointer-events: none;
    background-image: radial-gradient(circle, #fff 10%, transparent 10.01%);
    background-repeat: no-repeat;
    background-position: 50%;
    transform: scale(10, 10);
    opacity: 0;
    transition: transform .5s, opacity 1s;
}

.ripple:active:after {
    transform: scale(0, 0);
    opacity: .2;
    transition: 0s;
}

.status-container {
    background: rgba(15, 23, 42, 0.3);
    padding: 20px;
    border-radius: 16px;
    border: 1px solid var(--glass-border);
}

/* Responsive Design */
@media (max-width: 991px) {
    .container {
        padding: 0 20px;
    }

    .hero-title {
        font-size: 3.5rem !important;
    }
}

@media (max-width: 768px) {
    body {
        font-size: 15px;
    }

    .hero-title {
        font-size: 2.5rem !important;
        margin-bottom: 20px;
    }

    .nav-links {
        display: none;
        /* Mobile menu can be added later */
    }

    .hero-subtitle {
        font-size: 1.05rem !important;
        max-width: 100% !important;
    }

    .navbar {
        padding: 15px 0;
    }

    .navbar .container {
        justify-content: center;
    }

    .glass {
        border-radius: 16px;
        padding: 20px !important;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem !important;
    }

    .btn {
        width: 100%;
        justify-content: center;
        padding: 14px 20px;
    }

    .container {
        padding: 0 15px;
    }
}