:root {
    --primary: #2563eb;
    --primary-glow: rgba(37, 99, 235, 0.5);
    --secondary: #7c3aed;
    --accent: #10b981;
    --bg: #0b0f1a;
    --card-bg: rgba(23, 28, 48, 0.7);
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --glass: rgba(255, 255, 255, 0.03);
    --glass-border: rgba(255, 255, 255, 0.1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Outfit', sans-serif;
}

body {
    background-color: var(--bg);
    color: var(--text-main);
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    overflow: hidden;
}

/* --- Animated Background --- */
.bg-blobs {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
    background: radial-gradient(circle at 10% 20%, rgba(37, 99, 235, 0.1), transparent),
                radial-gradient(circle at 90% 80%, rgba(124, 58, 237, 0.1), transparent);
}

.blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.4;
    animation: move 20s infinite alternate ease-in-out;
}

.blob-1 {
    width: 400px;
    height: 400px;
    background: var(--primary);
    top: -100px;
    left: -100px;
}

.blob-2 {
    width: 300px;
    height: 300px;
    background: var(--secondary);
    bottom: -50px;
    right: -50px;
    animation-delay: -5s;
}

@keyframes move {
    from { transform: translate(0, 0) scale(1); }
    to { transform: translate(50px, 50px) scale(1.1); }
}

/* --- Login Card --- */
.login-container {
    width: 100%;
    max-width: 450px;
    padding: 40px;
    background: var(--card-bg);
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(20px);
    border-radius: 32px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    position: relative;
    z-index: 1;
}

.logo-section {
    text-align: center;
    margin-bottom: 30px;
}

.logo-section h1 {
    font-size: 28px;
    font-weight: 800;
    background: linear-gradient(135deg, #fff, #94a3b8);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.tabs {
    display: flex;
    gap: 10px;
    margin-bottom: 30px;
    background: rgba(0,0,0,0.2);
    padding: 5px;
    border-radius: 12px;
}

.tab {
    flex: 1;
    padding: 10px;
    text-align: center;
    cursor: pointer;
    border-radius: 8px;
    font-weight: 600;
    color: var(--text-muted);
    transition: 0.3s;
}

.tab.active {
    background: var(--primary);
    color: white;
    box-shadow: 0 4px 12px var(--primary-glow);
}

.input-group {
    margin-bottom: 20px;
}

.input-group label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-muted);
    margin-bottom: 8px;
}

.input-group input {
    width: 100%;
    padding: 14px 20px;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    color: white;
    font-size: 15px;
    transition: 0.3s;
}

.input-group input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 4px var(--primary-glow);
}

.btn-login {
    width: 100%;
    padding: 16px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border: none;
    border-radius: 12px;
    color: white;
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    transition: 0.3s;
    margin-top: 10px;
}

.btn-login:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(37, 99, 235, 0.3);
}

.switch-auth {
    text-align: center;
    margin-top: 20px;
    font-size: 14px;
    color: var(--text-muted);
}

.switch-auth a {
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
}

/* Loading Spinner */
.loader {
    display: none;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255,255,255,0.3);
    border-top: 3px solid #fff;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}