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

:root {
    --primary: #1a73e8;
    --primary-dark: #1557b0;
    --secondary: #5f6368;
    --success: #34a853;
    --danger: #ea4335;
    --warning: #fbbc04;
    --bg-light: #f8f9fa;
    --white: #ffffff;
    --text-dark: #202124;
    --text-muted: #5f6368;
    --border: #dadce0;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-light);
    min-height: 100vh;
    display: flex;
}

.login-wrapper {
    display: flex;
    width: 100%;
    min-height: 100vh;
}

.login-brand {
    display: none;
}

.login-form-section {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px;
    background: var(--white);
}

.login-form-container {
    width: 100%;
    max-width: 420px;
}

.login-header {
    margin-bottom: 40px;
}

.brand-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 8px;
}

.brand-logo i {
    font-size: 32px;
    color: var(--primary);
}

.brand-logo span {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary);
}

.login-header h1 {
    font-size: 28px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 8px;
}

.login-header p {
    color: var(--text-muted);
    font-size: 15px;
}

.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-dark);
    margin-bottom: 8px;
}

.input-wrapper {
    position: relative;
}

.input-wrapper > i:not(.password-toggle) {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    font-size: 16px;
    z-index: 1;
    pointer-events: none;
}

.input-wrapper input {
    padding-left: 48px;
}

.form-group input {
    width: 100%;
    padding: 14px 36px;
    border: 2px solid var(--border);
    border-radius: 10px;
    font-size: 15px;
    transition: all 0.3s ease;
    background: var(--white);
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(26, 115, 232, 0.1);
}

.form-group input.error {
    border-color: var(--danger);
}

.btn-login {
    width: 100%;
    padding: 16px;
    background: var(--primary);
    color: var(--white);
    border: none;
    border-radius: 10px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin-top: 8px;
}

.btn-login:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(26, 115, 232, 0.3);
}

.btn-login:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
}

.login-footer {
    text-align: center;
    margin-top: 32px;
    padding-top: 24px;
    border-top: 1px solid var(--border);
}

.login-footer p {
    color: var(--text-muted);
    font-size: 14px;
}

.credentials-box {
    background: #e8f0fe;
    padding: 12px 16px;
    border-radius: 8px;
    margin-top: 12px;
    font-size: 13px;
    color: var(--primary);
}

.password-toggle {
    position: absolute;
    right: 16px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    z-index: 1;
}

.password-toggle:hover {
    color: var(--text-dark);
}

@media (min-width: 1024px) {
    .login-brand {
        display: flex;
        flex: 1;
        background: linear-gradient(135deg, #1a73e8 0%, #0d47a1 100%);
        align-items: center;
        justify-content: center;
        position: relative;
        overflow: hidden;
    }

    .login-brand::before {
        content: '';
        position: absolute;
        width: 400px;
        height: 400px;
        background: rgba(255, 255, 255, 0.1);
        border-radius: 50%;
        top: -100px;
        right: -100px;
    }

    .brand-content {
        text-align: center;
        color: var(--white);
        z-index: 1;
        padding: 40px;
    }

    .brand-content i {
        font-size: 80px;
        margin-bottom: 24px;
    }

    .brand-content h2 {
        font-size: 36px;
        font-weight: 700;
        margin-bottom: 16px;
    }

    .brand-content p {
        font-size: 18px;
        opacity: 0.9;
    }
}

@media (max-width: 480px) {
    .login-form-section {
        padding: 24px;
    }

    .login-header h1 {
        font-size: 24px;
    }
}