:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --secondary: #f8fafc;
    --accent: #06d6a0;
    --text: #1e293b;
    --text-light: #64748b;
    --border: #e2e8f0;
    --shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: var(--gradient);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    color: var(--text);
}

.login-container {
    background: white;
    border-radius: 20px;
    box-shadow: var(--shadow);
    padding: 40px;
    width: 100%;
    max-width: 420px;
    position: relative;
}

.login-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
}

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

.logo {
    width: 70px;
    height: 70px;
    background: var(--gradient);
    border-radius: 18px;
    margin: 0 auto 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 8px 20px rgba(99, 102, 241, 0.3);
}

.logo svg {
    color: white;
}

.logo-section h1 {
    font-size: 26px;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 8px;
}

.logo-section p {
    color: var(--text-light);
    font-size: 15px;
    font-weight: 400;
}

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

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

.form-control {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--border);
    border-radius: 10px;
    font-size: 15px;
    font-family: inherit;
    background: white;
    transition: all 0.3s ease;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.form-select {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--border);
    border-radius: 10px;
    font-size: 15px;
    font-family: inherit;
    background: white;
    transition: all 0.3s ease;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%2364748b'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'%3E%3C/path%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
    background-size: 16px;
}

.form-select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.btn-login {
    width: 100%;
    padding: 14px;
    background: var(--gradient);
    color: white;
    border: none;
    border-radius: 10px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: 10px;
}

.btn-login:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(99, 102, 241, 0.4);
}

.alert {
    padding: 12px 16px;
    border-radius: 10px;
    margin-bottom: 20px;
    border: none;
    font-weight: 500;
}

.alert-danger {
    background: #fee2e2;
    color: #dc2626;
    border-left: 4px solid #dc2626;
}

.features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    margin-top: 25px;
    padding-top: 25px;
    border-top: 1px solid var(--border);
}

.feature-item {
    text-align: center;
    padding: 12px;
    background: var(--secondary);
    border-radius: 10px;
}

.feature-icon {
    width: 36px;
    height: 36px;
    background: var(--primary);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 6px;
}

.feature-icon svg {
    color: white;
}

.feature-text {
    font-size: 11px;
    color: var(--text-light);
    font-weight: 500;
}

.floating-shapes {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: -1;
}

.shape {
    position: absolute;
    background: var(--primary);
    opacity: 0.1;
    border-radius: 50%;
}

.shape-1 {
    width: 80px;
    height: 80px;
    top: 10%;
    left: 10%;
}

.shape-2 {
    width: 120px;
    height: 120px;
    bottom: 10%;
    right: 10%;
    background: var(--accent);
}

.shape-3 {
    width: 60px;
    height: 60px;
    top: 60%;
    left: 80%;
}

/* Info demo login */
.bg-light {
    background-color: var(--secondary) !important;
}

.text-muted {
    color: var(--text-light) !important;
}

code {
    background: rgba(99, 102, 241, 0.1);
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 12px;
    color: var(--primary);
}

/* Responsive */
@media (max-width: 480px) {
    .login-container {
        padding: 30px 20px;
        margin: 15px;
    }

    .logo-section h1 {
        font-size: 22px;
    }

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